税制改正・規制動向

本サイトに掲載されている情報は、記事左上部の作成日時点のものです。また、情報の提供のみを目的としており、投資等の勧誘を意図するものではありません。本サイトで提供している情報に関しては万全を期しておりますが、その情報の正確性及び完全性を保証するものではありません。また、予告なしに内容が変更または廃止される場合がございますので、予めご了承ください。本サイトの内容に依拠した結果に被った損害について、当社は責任を負うものではありません。当社の事前の承諾なしに、本サイトに掲載されている内容の複製・転用などを行うことを禁止します。

cryptact_general

改正資金決済法をポイント解説～仮想通貨への影響は？

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ビットコイン（BTC）などの仮想通貨は有価証券なのか？両者の違いや認定のデメリットを解説

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仮想通貨の分離課税の令和8年税制改正大綱を解説.webp

【2026年1月最新】仮想通貨の分離課税、令和8年度与党税制改正大綱でどう変わるか｜注目点を解説

仮想通貨の税制改正で申告分離課税になるのはいつ？税率、改正への動きを解説！

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仮想通貨のトラベルルールとは？適用後の変更点を解説！

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本サイトに掲載されている情報は、記事左上部の作成日時点のものです。監修については、法的な観点から誤りがないかという観点から確認を受けております。また、情報の提供のみを目的としており、投資等の勧誘を意図するものではありません。本サイトで提供している情報に関しては万全を期しておりますが、その情報の正確性及び完全性を保証するものではありません。また、予告なしに内容が変更または廃止される場合がございますので、予めご了承ください。本サイトの内容に依拠した結果に被った損害について、当社は責任を負うものではありません。当社の事前の承諾なしに、本サイトに掲載されている内容の複製・転用などを行うことを禁止します。

cryptact_law

仮想通貨投資に保証（補償）はある？日本の法整備状況を解説

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総合課税と分離課税の違いとは？計算や申告方法の違いを解説

仮想通貨の20%分離課税は実現するのか？2026年度「税制改正要望書」5つのポイントを解説

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分離課税の可能性も！？暗号資産の税制改正要望書2025をサクッと解説

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税金・税率

確定申告

基礎知識・用語

仮想通貨コラム

仮想通貨（暗号資産）の税金とは？基礎と計算方法、対策も解説

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令和7年仮想通貨の確定申告は自分でできる

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【2026年最新版】仮想通貨の確定申告が必要？計算方法とやり方・手順

<h3>Transaction history is retrieved automatically, preventing missed syncs and eliminating the burden of routine manual work.</h3><p>TOKYO, JAPAN – September 14, 2026 — cryptact, a digital asset tax platform used by more than 200,000 people, has launched Sync-n-Forget, a feature that automatically retrieves and stores transaction history from connected exchange accounts before each exchange's API retrieval window closes. Users on the Basic plan and above no longer need to log in and sync on a schedule to keep their records complete.</p><h3>Background</h3><p>Some exchanges limit how far back their APIs can reach, returning only the past 30 days of data. Once that window passes, the data can no longer be pulled through the API.</p><p>Users are then left to download history files from the exchange's own interface and upload them by hand, and when no record was kept at all, accurate calculation becomes difficult. Until now, the only defense was to log in to cryptact and run a sync before each deadline, a routine that is easy to forget.</p><h3>What Sync-n-Forget does</h3><p>cryptact has developed and operated its own data retrieval infrastructure for years, handling the differing API specifications, rate limits and data formats of each exchange, and keeping those integrations up to date as exchanges change. Sync-n-Forget adds a scheduled retrieval layer on top of that infrastructure, one that is not triggered by user activity.</p><p>For connected exchanges with deadline-limited endpoints, cryptact queries the exchange API on a regular cycle and writes the history to its own database automatically. Whether the user is logged in makes no difference.</p><p>Because Sync-n-Forget operates through cryptact's existing service infrastructure, stored API keys remain encrypted and protected exactly as they are today.</p><h3>What changes for users</h3><p>Users no longer need to track API retrieval deadlines. Stored history is delivered to the account the next time the user presses Sync for that API connection. Someone who has not logged in for several months receives the whole intervening period in a single pass, instead of finding a gap that can no longer be filled.</p><p>Coverage applies to exchanges whose APIs impose a retrieval limit, including Bybit, MEXC, OKJ, KuCoin, Binance, OKX and BitTrade. The retrievable period differs by exchange and by endpoint; details are published on cryptact's <a target="_blank" rel="noopener noreferrer" href="https://support.cryptact.com/hc/en-us/sections/4405808535705">help pages</a>.</p><h3>Executive comment</h3><p>"Transaction history that has already been lost is not easy to recover, and the limits exchanges set on their APIs are not something users can solve on their own," said Amin Azmoudeh, Co-CEO of pafin Inc. "We have applied our own technology to close that gap, so records stay protected without the user taking any action. We want investors spending their time on investment decisions, not on keeping records intact."</p><h3>Availability</h3><p>Sync-n-Forget is enabled automatically on Basic and higher paid plans at no additional cost, and there is nothing for users to configure. The Free plan and the data retention plan are not eligible. If an account moves from a paid plan to Free, automatic retrieval stops.</p><p><img src="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/Sync_n_Forget_API_EN_1a0cfa8531.png" alt="Sync-n-Forget-API-EN.png" srcset="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/thumbnail_Sync_n_Forget_API_EN_1a0cfa8531.png 245w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/small_Sync_n_Forget_API_EN_1a0cfa8531.png 500w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/medium_Sync_n_Forget_API_EN_1a0cfa8531.png 750w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/large_Sync_n_Forget_API_EN_1a0cfa8531.png 1000w," sizes="100vw" width="" height=""></p><p>After logging in to cryptact, check the sync status from the API connection page of exchanges that provide time-limited APIs.</p><div class="d-flex align-items-center justify-content-center m-4 text-center"><div class="gradient-btn"><div class="div-btn"><div class="inner-div-btn button-lg"><a target="_blank" rel="noopener noreferrer" href="https://www.cryptact.com/en"><span style="color:hsl(0,0%,100%);"><span>Log in</span></span></a></div></div></div></div><h3>About pafin Inc.</h3><h4>Services</h4><p>cryptact — Crypto tax calculations: Simplified. Automatically calculate capital gains, access all the information needed for tax filing, and efficiently manage portfolios — all in one place. Trusted by over 200,000 users.<br>Website: <a target="_blank" rel="noopener noreferrer" href="https://www.cryptact.com/en">https://www.cryptact.com/en</a><br>X: <a target="_blank" rel="noopener noreferrer" href="https://x.com/CryptactGlobal">https://x.com/CryptactGlobal</a></p><p>Guardian — Crypto Tax Filing Support<br>A full-service solution where crypto-specialized tax professionals and dedicated P&amp;L specialists handle everything from gain/loss calculations to filing your tax return.<br>Website: <a target="_blank" rel="noopener noreferrer" href="https://crypto-city.net/guardian">https://crypto-city.net/guardian</a></p><p>defitact — A household ledger for Web3. Entering a wallet address instantly aggregates on-chain transactions and visualizes the portfolio. By making individual activity across multiple decentralized applications, along with wallet balances and market values, visible in real time, defitact brings everything into a single view.<br>Website: <a target="_blank" rel="noopener noreferrer" href="https://www.defitact.com/">https://www.defitact.com/</a></p><h4>Company Profile</h4><p>Company Name: pafin Inc.<br>Date Founded: January 2018<br>Representative Directors: Amin Azmoudeh, Co-CEO / Gaku Saito, Co-CEO<br>Location: Frontier Kojimachi 5F, Kojimachi 3-2-4, Chiyoda City, Tokyo, Japan 102-0083<br>Website: <a target="_blank" rel="noopener noreferrer" href="https://www.pafin.com/">https://www.pafin.com/</a></p><h4>Media Contact</h4><p>Email: <a href="mailto:pr@pafin.com">pr@pafin.com</a></p>

cryptact released Sync-n-Forget, which automatically retrieves and stores exchange transaction history before API deadlines pass. 

cryptact Launches Sync-n-Forget, Preserving Exchange History Before API Deadlines Pass

プレスリリース

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取得期限付きAPI取得による取引履歴の消失を防ぐ「おまかせ自動取得（API連携）」を提供開始

cryptact

<h3>Hand the tedious manual work of crypto tax preparation, from importing transaction history to resolving missing data, over to AI.</h3><p>TOKYO, JAPAN – June 4, 2026 — cryptact, a digital asset tax platform, today announced a new write capability for the cryptact MCP Server*. Simply by connecting cryptact to AI assistants such as Claude or ChatGPT, users can complete the entire crypto tax calculation workflow, from importing transaction history to resolving missing data, through conversation alone.</p><h3>Background</h3><p style="margin-bottom:8.0pt;"><span lang="EN-US">Calculating crypto gains and losses can be streamlined with software, but the preparation behind it has remained manual. Investors still had to gather transaction history across exchanges and wallets and supplement any missing information themselves.</span></p><p style="margin-bottom:8.0pt;"><span lang="EN-US">To address this with AI, cryptact released a command line interface (CLI) on April 2, 2026, followed by read capability for the MCP Server on April 16, 2026.&nbsp;</span></p><h3><span lang="EN-US">What the write capability does</span></h3><p><span lang="EN-US">By connecting cryptact to an AI tool such as Claude or ChatGPT, users can handle crypto tax tasks conversationally. These include:</span></p><ul><li><span lang="EN-US">Importing transaction history through CSV upload, API integration, or wallet connection</span></li><li><span lang="EN-US">Resolving unclassified transactions, including missing quantities, absent price data, and unsupported coins</span></li><li><span lang="EN-US">Bulk-approving AI suggestions for DeFi transactions that could not be categorized automatically</span></li></ul><p><span lang="EN-US">In addition, by pairing cryptact with browsing tools such as Claude in Chrome, users can also automate the collection of transaction history.&nbsp;</span></p><h3><span lang="EN-US">Executive comment</span></h3><p><span lang="EN-US">“We started cryptact to make crypto tax simpler. With this addition to the MCP Server, the time-consuming preparation that calculation tools alone could never eliminate can now be handed to an AI through plain conversation,” said Amin Azmoudeh, Co-CEO of pafin Inc., which operates cryptact. “I believe this is a transformative step forward towards making crypto tax preparation approachable by many more investors. We will continue refining our tools and infrastructure to underpin investing and transparency in the crypto ecosystem.”</span></p><h3><span lang="EN-US">Availability</span></h3><p><span lang="EN-US">The cryptact MCP Server is available to all cryptact users, including those on the free plan. Setup instructions are available on the </span><a target="_blank" rel="noopener noreferrer" href="https://support.cryptact.com/hc/en-us/articles/56762747250201"><span lang="EN-US">help page</span></a><span lang="EN-US">.</span></p><div class="d-flex align-items-center justify-content-center m-4 text-center"><div class="gradient-btn"><div class="div-btn"><div class="inner-div-btn button-lg"><a target="_blank" rel="noopener noreferrer" href="https://www.cryptact.com/en/ai-mcp-cli"><span style="color:hsl(0,0%,100%);"><span>Learn more</span></span></a></div></div></div></div><h3>Use case</h3><h4>1. Transaction history upload</h4><p><img src="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/4_en_281151350d.png" alt="4-en.png" srcset="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/thumbnail_4_en_281151350d.png 245w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/small_4_en_281151350d.png 500w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/medium_4_en_281151350d.png 750w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/large_4_en_281151350d.png 1000w," sizes="100vw" width="" height=""></p><p>Example prompt: “Upload my Coinbase trading history to cryptact's Coinbase/Trades.”</p><h4>2. Automatic resolution when missing transaction history is detected</h4><p><img src="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/5_en_2a6aa53382.png" alt="5-en.png" srcset="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/thumbnail_5_en_2a6aa53382.png 245w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/small_5_en_2a6aa53382.png 500w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/medium_5_en_2a6aa53382.png 750w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/large_5_en_2a6aa53382.png 1000w," sizes="100vw" width="" height=""></p><p><img src="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/6_en_113df69bc7.png" alt="6-en.png" srcset="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/thumbnail_6_en_113df69bc7.png 245w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/small_6_en_113df69bc7.png 500w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/medium_6_en_113df69bc7.png 750w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/large_6_en_113df69bc7.png 1000w," sizes="100vw" width="" height=""></p><p>Example prompt: "Please create and upload a custom file (User.Custom) to resolve the issue of coins with insufficient amounts in cryptact, treating them as purchases at their market value as of 00:00 on February 1, 2020."</p><p>* MCP (Model Context Protocol) is an open protocol for connecting AI tools with external services. Proposed by Anthropic as an open standard, it is supported by a growing range of tools including Claude Desktop and ChatGPT. An MCP server is the connection point that, based on this protocol, makes the data and functions tied to an external service account available to an AI assistant.<br>Official documentation: <a target="_blank" rel="noopener noreferrer" href="https://modelcontextprotocol.io">https://modelcontextprotocol.io</a></p><h3>About pafin Inc.</h3><h4>Services</h4><p>cryptact — Crypto tax calculations: Simplified. Automatically calculate capital gains, access all the information needed for tax filing, and efficiently manage portfolios — all in one place. Trusted by over 200,000 users.<br>Website: <a target="_blank" rel="noopener noreferrer" href="https://www.cryptact.com/en">https://www.cryptact.com/en</a><br>X: <a target="_blank" rel="noopener noreferrer" href="https://x.com/CryptactGlobal">https://x.com/CryptactGlobal</a></p><p>defitact — Your Web3 Sidekick. Drop in a wallet address and instantly see every on-chain move, all in one place. Track your dApps, watch your balances shift in real time, and stay on top of your entire portfolio.<br>Website: <a target="_blank" rel="noopener noreferrer" href="https://www.defitact.com/">https://www.defitact.com/</a></p><p>Company Name: pafin Inc.<br>Date Founded: January 2018<br>Representative Directors: Amin Azmoudeh, Co-CEO / Gaku Saito, Co-CEO<br>Location: Frontier Kojimachi 5F, Kojimachi 3-2-4, Chiyoda City, Tokyo, Japan 102-0083</p><h4>Media Contact</h4><p>Email: <a href="mailto:pr@pafin.com">pr@pafin.com</a></p>

cryptact released a write capability for its MCP Server. Connect it to AI tools like Claude or ChatGPT to complete crypto tax workflows through conversation.

cryptact Releases AI Integration: Complete Crypto Tax Calculations by Chatting With Claude or ChatGPT

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クリプタクト、AI連携機能を公開。ClaudeやChatGPTとの会話で仮想通貨の損益計算を完結

<h3>Bringing Crypto P&amp;L Data to AI-driven Workflows&nbsp;</h3><p>cryptact, the crypto tax platform used by more than 200,000 investors and operated by pafin Inc., today released an MCP server that lets AI assistants such as Claude and ChatGPT pull users' profit-and-loss and portfolio data directly from their cryptact accounts. The server gives users a new way to put their crypto data to work with AI — from analysis to automation.</p><h3>How It Works</h3><p>Using Anthropic's open MCP protocol, the cryptact MCP server connects AI assistants directly to a user's cryptact account. Once connected, users can ask questions in plain language and get back profit-and-loss summaries, portfolio data, and transaction histories.</p><h3>What Users Can Do</h3><p>At launch, the server offers ten read-only tools. Users can pull realized P&amp;L summaries by fiscal year or asset, search transactions by date or exchange, and check portfolio holdings with current market values and cost basis.</p><p>For example, a user can ask an AI assistant "Show me my 2025 BTC realized gains," retrieve the annual P&amp;L summary from their cryptact account, and use it for further analysis or automation — all within the AI assistant.</p><h3>Part of a Broader Push</h3><p>The MCP server is the second new access channel. On April 2, <a target="_blank" rel="noopener noreferrer" href="https://www.cryptact.com/en/news/cryptact-cli-en">cryptact released a command-line interface (CLI) </a>for developers who prefer terminal workflows. The MCP server broadens the reach further: anyone with an AI assistant can query their cryptact data in plain language — no coding or API calls needed.</p><p style="margin-bottom:10.0pt;"><span lang="EN-US">Future releases will add write capabilities, including transaction editing and transaction history file uploads.</span></p><h3><span lang="EN-US">Availability</span></h3><p style="margin-bottom:10.0pt;"><span lang="EN-US">The MCP server is free for all cryptact users, regardless of plan tier. Setup instructions are available at the </span><a target="_blank" rel="noopener noreferrer" href="https://support.cryptact.com/hc/en-us/articles/56762747250201"><span lang="EN-US">help page</span></a><span lang="EN-US">.</span></p><h3><span lang="EN-US"><strong>About pafin Inc.</strong></span></h3><h4><span lang="EN-US"><strong>Services</strong></span></h4><p style="margin-bottom:10.0pt;"><span lang="EN-US">cryptact — Crypto tax calculations: Simplified. Automatically calculate capital gains, access all the information needed for tax filing, and efficiently manage portfolios — all in one place. Trusted by over 200,000 users.</span><br><span lang="EN-US">Website:&nbsp;</span><a target="_blank" rel="noopener noreferrer" href="https://www.cryptact.com/en"><span lang="EN-US">https://www.cryptact.com/en</span></a><br><span lang="EN-US">X:&nbsp;</span><a target="_blank" rel="noopener noreferrer" href="https://x.com/CryptactGlobal"><span lang="EN-US">https://x.com/CryptactGlobal</span></a></p><p><span lang="EN-US">defitact — Your Web3 Sidekick. Drop in a wallet address and instantly see every on-chain move, all in one place. Track your dApps, watch your balances shift in real time, and stay on top of your entire portfolio.</span><br><span lang="EN-US">Website: </span><a target="_blank" rel="noopener noreferrer" href="https://www.defitact.com/"><span lang="EN-US">https://www.defitact.com/</span></a></p><p style="margin-bottom:10.0pt;"><span lang="EN-US"><strong>Company Name:</strong>&nbsp;pafin Inc.</span><br><span lang="EN-US"><strong>Date Founded:</strong>&nbsp;January 2018</span><br><span lang="EN-US"><strong>Representative Directors:</strong>&nbsp;Amin Azmoudeh, Co-CEO / Gaku Saito, Co-CEO</span><br><span lang="EN-US"><strong>Location:</strong>&nbsp;Frontier Kojimachi 5F, Kojimachi 3-2-4, Chiyoda City, Tokyo, Japan 102-0083</span><br><br><span lang="EN-US"><strong>Media Contact</strong></span><br><span lang="EN-US">Email:&nbsp;</span><a href="mailto:pr@pafin.com"><span lang="EN-US">pr@pafin.com</span></a></p>

cryptact released an MCP server that lets AI assistants pull users' profit-and-loss and portfolio data directly from their cryptact accounts.

cryptact Launches MCP Server for AI Assistants

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AIアシスタントと連携するMCPサーバーを公開

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仮想通貨の確定申告、ツールの有無で負担感に約1.6倍の差

<h3><span style="color:windowtext;"><span lang="EN-US"><strong>Bringing industry-leading crypto tax calculation to automated and agentic workflows</strong></span></span></h3><p>cryptact, the crypto tax platform operated by pafin Inc., today released a command-line interface (CLI) that gives developers and power users direct access to its profit-and-loss calculation engine. The tool works from any terminal and is compatible with AI coding environments such as Claude Code.</p><p>The cryptact CLI lets users upload exchange files, trigger gain-and-loss calculations, search transaction histories, and export results without leaving the command line. The same commands can be invoked by AI coding tools, trading scripts, and automated workflows.</p><p>cryptact will also release a <a target="_blank" rel="noopener noreferrer" href="https://modelcontextprotocol.io/docs/getting-started/intro">Model Context Protocol (MCP) server</a> in April 2026, enabling non-technical users to interact with cryptact through chat-based AI assistants.</p><h3><span lang="EN-US">Background</span></h3><p>Accurate cryptocurrency tax reporting demands deep expertise in both blockchain technology and national tax codes. cryptact has spent eight years encoding that expertise into a calculation engine that aggregates data from over 175 sources — including major exchanges and blockchains — and computes realized gains and losses under the tax rules of Japan, Canada, and India.</p><p>As AI-powered tools become a standard part of everyday workflows, the company has packaged that engine into interfaces that AI tools can call directly — starting with the CLI released today.</p><h3><span lang="EN-US">How It Works</span></h3><p>Users authenticate once via OAuth in their browser, after which the cryptact CLI stores credentials locally.&nbsp;</p><p>Below are representative examples of what the tool can do.</p><p>Upload an exchange transaction file:</p><div style="border-radius:8px;box-shadow:0 4px 16px rgba(0,0,0,0.35);font-family:'SF Mono','Menlo','Consolas','Liberation Mono',monospace;font-size:0.85em;margin:1em 0 1.5em;overflow:hidden;"><div style="background-color:#3a3a3a;line-height:1;padding:8px 14px;"><span style="color:#ff5f57;font-size:16px;"><span style="margin-right:6px;">●</span></span><span style="color:#febc2e;font-size:16px;"><span style="margin-right:6px;">●</span></span><span style="color:#28c840;font-size:16px;">●</span></div><div style="background-color:#1e1e2e;color:#cdd6f4;line-height:1.7;overflow-x:auto;padding:16px 20px;white-space:pre-wrap;">
<span style="color:#a6e3a1;">$</span> <span style="color:#89b4fa;">cryptact exchange file-upload</span> <span style="color:#f9e2af;">trades.csv</span> <span style="color:#f38ba8;">--exchange-file-id</span> <span style="color:#fab387;">User.Custom</span><br><span style="color:#a6e3a1;">File "trades.csv" uploaded successfully.</span>
  </div></div><p>Search recent transactions:</p><div style="border-radius:8px;box-shadow:0 4px 16px rgba(0,0,0,0.35);font-family:'SF Mono','Menlo','Consolas','Liberation Mono',monospace;font-size:0.85em;margin:1em 0 1.5em;overflow:hidden;"><div style="background-color:#3a3a3a;line-height:1;padding:8px 14px;"><span style="color:#ff5f57;font-size:16px;"><span style="margin-right:6px;">●</span></span><span style="color:#febc2e;font-size:16px;"><span style="margin-right:6px;">●</span></span><span style="color:#28c840;font-size:16px;">●</span></div><div style="background-color:#1e1e2e;color:#cdd6f4;line-height:1.7;overflow-x:auto;padding:16px 20px;white-space:pre-wrap;">
<span style="color:#a6e3a1;">$</span> <span style="color:#89b4fa;">cryptact transaction search</span> <span style="color:#f38ba8;">--limit</span> <span style="color:#fab387;">3</span><br><span style="color:#89dceb;">UUID         Date        Action  Pair     Volume  Price</span><br><span style="color:#fab387;">a1b2c3d4</span>     <span style="color:#f9e2af;">2025-03-15</span>  <span style="color:#a6e3a1;">BUY</span>     BTC/USD  0.50    90,000<br><span style="color:#fab387;">e5f6g7h8</span>     <span style="color:#f9e2af;">2025-06-20</span>  <span style="color:#f38ba8;">SELL</span>    BTC/USD  0.25    102,000<br><span style="color:#fab387;">c9d0e1f2</span>     <span style="color:#f9e2af;">2025-09-10</span>  <span style="color:#a6e3a1;">BUY</span>     ETH/USD  12.00   2,000<br><span style="color:#6c7086;">(1,247 transactions)</span>
  </div></div><h3>Availability</h3><p>The cryptact CLI is available today to all cryptact subscribers, including Free plan users. Check out our GitHub documentation for installation steps and usage examples.</p><div class="d-flex align-items-center justify-content-center m-4 text-center"><div class="gradient-btn"><div class="div-btn"><div class="inner-div-btn button-lg"><a target="_blank" rel="noopener noreferrer" href="https://github.com/pafin-inc/cryptact-cli"><span style="color:hsl(0,0%,100%);"><span>Get Started with the CLI</span></span></a></div></div></div></div><div class="boilerplate"><h3>About pafin Inc.</h3><p><strong>Services</strong><br>cryptact — Crypto tax calculations: Simplified. Automatically calculate capital gains, access all the information needed for tax filing, and efficiently manage portfolios — all in one place. Trusted by over 200,000 users.</p><p><strong>Website:</strong> <a target="_blank" rel="noopener noreferrer" href="https://www.cryptact.com/en">https://www.cryptact.com/en</a><br><strong>X:</strong> <a target="_blank" rel="noopener noreferrer" href="https://x.com/CryptactGlobal">https://x.com/CryptactGlobal</a></p><p><strong>Company Name:</strong> pafin Inc.<br><strong>Date Founded:</strong> January 2018<br><strong>Representative Directors:</strong> Amin Azmoudeh, Co-CEO / Gaku Saito, Co-CEO<br><strong>Location:</strong> Frontier Kojimachi 5F, Kojimachi 3-2-4, Chiyoda City, Tokyo, Japan 102-0083</p></div><div class="contact"><p><strong>Media Contact</strong><br>Email: <a href="mailto:pr@pafin.com">pr@pafin.com</a></p></div>

cryptact release a CLI that allows users to access cryptact’s profit-and-loss calculation functions from Tarminal and AI coding tools.

cryptact launches CLI for you and your AI agent

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クリプタクト、AIコーディングツールから仮想通貨の損益計算が可能なCLIを公開

<p>We are pleased to announce that cryptact now supports profit and loss calculation for Wallet of Satoshi.</p><p>Demand for instant, low-fee payments and transfers using Lightning Network, Bitcoin’s layer 2 technology<sup>*1</sup>, continues to grow. In November 2025, monthly transaction volume was estimated at USD 1.1 billion from 5.22 million transactions<sup>*2</sup>.<br>Wallet of Satoshi is a widely used wallet that supports the Lightning Network. It has surpassed 1 million total downloads.</p><p>cryptact has now added support for importing the transaction history CSV for Wallet of Satoshi custodial and self-custody wallets. This enables users to calculate profit and loss on bitcoin used for payments accurately and efficiently by simply uploading the CSV downloaded from Wallet of Satoshi to cryptact, without having to manually organize transaction history for tax filing purposes.</p><p>Please refer to the help page below for instructions on how to obtain your transaction history.<br><a target="_blank" rel="noopener noreferrer" href="https://support.cryptact.com/hc/en-us/articles/55318362048793">How to get trade history from Wallet of Satoshi</a></p><p>Going forward, cryptact will continue to expand support for the latest blockchains and scalability solutions to offer smooth profit and loss calculations.</p><h2>About Wallet of Satoshi</h2><p>Wallet of Satoshi (WoS) is a Bitcoin and Lightning wallet app for iOS and Android designed with a focus on simplicity and user experience. It supports Lightning Network payments and can also send directly to on-chain Bitcoin addresses, automatically detecting the payment type from a QR code.&nbsp;<br>Alongside its custodial experience, WoS introduced a self-custody option in 2025, where users control their own private keys.</p><p>Website: <a target="_blank" rel="noopener noreferrer" href="https://www.walletofsatoshi.com/">https://www.walletofsatoshi.com/</a></p><p><sup>*1</sup> A layer 2 solution that enables instant, low-fee payments while maintaining Bitcoin’s non-custodial nature.<br><sup>*2</sup> Sam Wouters, River Financial Inc., “<a target="_blank" rel="noopener noreferrer" href="https://x.com/SDWouters/status/2024507942708351443">Bitcoin’s Lightning Network exceeds $1 billion in monthly volume</a>” (February 20, 2026)</p><p>Contacts: <a href="mailto:pr@pafin.com">pr@pafin.com</a>&nbsp;</p>

cryptact now supports profit and loss calculations for Wallet of Satoshi.

Wallet of Satoshi Now Supported by cryptact

ニュース

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ビットコインLightning Networkウォレットの「Wallet of Satoshi」の損益計算に対応

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「計算デビュー割」キャンペーン開始。7%OFFクーポンで自分の損益を正確に

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仮想通貨の「無料税金シミュレーション」完了で7%OFFクーポンをプレゼント

<p>We are pleased to announce that cryptact now supports profit and loss calculation for Plasma, HyperEVM, World, Mantle, Celo, and Abstract.</p><p>By syncing wallet addresses on blockchains supported by cryptact’s DeFi features, users can automatically import deposit and withdrawal histories and perform tax-related profit and loss calculations by selecting the appropriate transaction type. These capabilities eliminate the need for users to create transaction records manually or through Excel files, enabling accurate P&amp;L calculations and tax filing even when using new blockchains.</p><p>As a result of this update, cryptact now supports 34 blockchains.</p><p>For further details on the DeFi features, please refer to the Help Page below.<br><a target="_blank" rel="noopener noreferrer" href="https://support.cryptact.com/hc/en-us/articles/5482686022425-DeFi-User-Guide-for-cryptact-s-DeFi-Feature">DeFi: User Guide for cryptact’s DeFi Feature</a><br><a target="_blank" rel="noopener noreferrer" href="https://support.cryptact.com/hc/en-us/articles/49814273883929">DeFi: Our Support Guidelines for DeFi</a></p><p>Going forward, cryptact will continue to expand support for the latest blockchains and scalability solutions to offer smooth profit and loss calculations.</p><p><strong>About Plasma</strong><br>Plasma is an EVM-compatible Layer 1 blockchain specialized in global stablecoin payments. It enables fee-free transfers of USDT, the world’s most liquid stablecoin, and its infrastructure is optimized for the scale, speed, and reliability required for stablecoin transactions.&nbsp;<br>Plasma, <a target="_blank" rel="noopener noreferrer" href="https://docs.plasma.to/docs/get-started/introduction/start-here">https://docs.plasma.to/docs/get-started/introduction/start-here</a></p><p><strong>About HyperEVM</strong><br>HyperEVM is an EVM-compatible blockchain layer provided by Hyperliquid, a decentralized exchange (DEX) specializing in perpetual futures trading. It shares the same blockspace as Hyperliquid, enabling decentralized applications (DApps) to be built with access to its mature liquidity and on-chain order book.<br>HyperEVM, <a target="_blank" rel="noopener noreferrer" href="https://hyperliquid.gitbook.io/hyperliquid-docs/hyperevm">https://hyperliquid.gitbook.io/hyperliquid-docs/hyperevm</a></p><p><strong>About World Chain</strong><br>World Chain is a Layer 2 network built on the OP Stack, centered around “Proof of Personhood (PoP)” through World ID. Its companion application, World App, aims to deliver the world’s largest digital identity and financial network to one billion people. As the financial infrastructure of this ecosystem, World Chain plans to implement unique features such as bot prevention using ID verification and gas-free transactions for verified users.<br>World chain, <a target="_blank" rel="noopener noreferrer" href="https://world.org/world-chain">https://world.org/world-chain</a><br><a target="_blank" rel="noopener noreferrer" href="https://docs.world.org/world-chain/quick-start/why">https://docs.world.org/world-chain/quick-start/why</a></p><p><strong>About Mantle</strong><br>Mantle Network is an L2 network that aims to solve the trilemma of scalability, security, and decentralization. It builds a three-layer modular blockchain that utilizes Optimistic Rollup and EigenLayer’s Data Availability (DA) layer. By separating execution, consensus, and data availability, Mantle aims to achieve an efficient and secure blockchain.<br>Mantle, <a target="_blank" rel="noopener noreferrer" href="https://www.mantle.xyz/">https://www.mantle.xyz/</a></p><p><strong>About Celo</strong><br>Celo is an Ethereum Layer 2 blockchain engineered for real-world use cases. Built upon the OP Stack, it inherits Ethereum’s security while achieving one-second block finality and transaction fees of less than one cent. Fully compatible with the Ethereum Virtual Machine (EVM), Celo allows direct deployment of Ethereum smart contracts. The network also offers native stablecoins such as cUSD and cEUR, enabling efficient on-chain payments and financial interactions.<br>Celo, <a target="_blank" rel="noopener noreferrer" href="https://docs.celo.org/home">https://docs.celo.org/home</a></p><p><strong>About Abstract</strong><br>Abstract is a Layer 2 blockchain built on Ethereum that leverages zero-knowledge rollup technology to deliver low fees, high scalability, and strong security. Designed with a particular focus on “the consumer experience”, Abstract Global Wallet (AGW) enables seamless logins using email addresses, social media accounts, and passkeys. With these features, Abstract aims to accelerate the mass adoption of Web3, especially across consumer-oriented applications such as games and social platforms.<br>Abstract, <a target="_blank" rel="noopener noreferrer" href="https://blog.abs.xyz/blog/articles/what-is-abstract">https://blog.abs.xyz/blog/articles/what-is-abstract</a><br><a target="_blank" rel="noopener noreferrer" href="https://docs.abs.xyz/overview">https://docs.abs.xyz/overview</a></p><p>Contacts: <a href="mailto:pr@pafin.com">pr@pafin.com</a><br><br>&nbsp;</p>

cryptact now supports profit and loss calculations for transactions on Plasma, HyperEVM, World, Mantle, Celo, and Abstract.

Plasma, HyperEVM, World, Mantle, Celo, and Abstract Now Supported by cryptact

Plasma-HyperEVM-World-Mantle-Celo-Abstract

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Plasma, HyperEVM, World, Mantle, Celo, Abstract対応のお知らせ

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日本円建てステーブルコイン「JPYC」総額220万円分プレゼントキャンペーンを実施

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ブロックチェーン対応拡大キャンペーン開催。暗号資産の確定申告をもっとラクに。5%OFFクーポン配付

<p>We are pleased to announce the launch of an auto-renewal discount as a special benefit for customers who continue to use cryptact over the long term.<br>This benefit applies to customers who use our service for more than one year. The count of consecutive years toward the discount began on September 9, 2024, at 9:00 AM (JST). Starting September 9, 2025, eligible customers will have the discount automatically applied upon renewal.</p><p>When you continue your paid cryptact plan through auto-renewal, the Auto-renewal discount will be applied. The discount rate varies depending on the length of continuous service, with a maximum discount of 20%. By choosing automatic renewal, you can enjoy our service at a better value, so we encourage you to take advantage of this opportunity.</p><h3>[Start Date for Counting Duration]</h3><p>The date of payment for the applicable plan purchased* on or after 9am September 9, 2024<br>* Includes new purchases, purchases via auto-renewal, and plan upgrades.</p><h3>[Discount Rate]</h3><ul><li>Auto-renewal after 1 year from the start date: 10% discount</li><li>Auto-renewal after 2 years from the start date: 15% discount</li><li>Auto-renewal after 3 or more years from the start date: 20% discount</li></ul><h3>[Applicable Plans]</h3><p>Paid plans of Prime and above</p><h3>[Discount Eligibility]</h3><p>The discount is automatically applied when paid plan of Prime and above is automatically renewed. No action is required from the customer.</p><h3>[Conditions]</h3><p>The customer must continue to be subscribed to one of the applicable plans. If the plan expires or is changed to a non-eligible plan, the discount-eligible duration will be reset.</p><p>Note: The automatic renewal discount applies only to credit card payments. Bank transfers are not eligible because they do not renew automatically.<span style="color:inherit;"><span data-sk="tooltip_parent">&nbsp;</span></span></p><h3>[How to confirm the discount rate]</h3><p>After logging in to cryptact, click on “Plan &amp; Billing” You can check the discount rate that will be applied at the time of your next automatic renewal under the section for your current plan.</p><p><img src="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/confirmation_for_auto_renew_69ed8acc54.png" alt="confirmation for auto renew.png" srcset="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/thumbnail_confirmation_for_auto_renew_69ed8acc54.png 245w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/small_confirmation_for_auto_renew_69ed8acc54.png 500w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/medium_confirmation_for_auto_renew_69ed8acc54.png 750w,https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/large_confirmation_for_auto_renew_69ed8acc54.png 1000w," sizes="100vw"></p><p>Please refer to <a target="_blank" rel="noopener noreferrer" href="https://support.cryptact.com/hc/en-us/sections/36434924929561-Auto-renewal-discount">here</a> for frequently asked questions about other auto-renewal discount.</p><p>We are dedicated to improving our services so that you can enjoy using cryptact for many years to come.&nbsp;</p><p>Thank you for your continued trust and support.</p>

A special benefit for customers who use our service over the long term will be starting from September 9, 2025.

Auto-Renewal Discount Now Available!

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自動更新割引の適用開始のお知らせ

<p>Thank you for using cryptact.<br>We are pleased to inform you that a new feature has been added to Live View.</p><h3>New Feature: Show historical position</h3><p>A new function has been added to the Live View screen that allows you to display your historical position.<br>With this update, you can easily select a specific date and check your balance as of that day.</p><p>This feature is especially useful when you want to know “How much did I hold on that day?” (You can access the Live View feature <a href="https://grid.cryptact.com/live-view/exchange">here</a>.)</p><p><img class="image_resized" style="width:83.59%;" src="https://pafin-cortex-production.s3.ap-northeast-1.amazonaws.com/image_354a42ecc3.png"></p><p><span style="font-size:13px;">*To use the Live View feature, you will need to give your consent on the Live View screen the first time only. Please note that Live View is available only for exchanges that support API integration.</span></p><p><span style="font-size:13px;">*If a sync error occurs during API integration, the information displayed may be inaccurate. Please make sure that no errors are occurring before using the feature.</span></p><p>If you are using the Live View feature for the first time, please see <a href="https://support.cryptact.com/hc/en-us/articles/38992563567385-Introduction-to-Live-View-Feature">this page.</a></p><p>The updated features are available <a href="https://grid.cryptact.com/">here.</a></p>

crypto tax calculations: Simplified.  ■New Feature Released: Check Your Past Asset Balances

New Feature Added to Live View – Check Historical Position by Date

機能アップデート

ライブビューに新機能追加 – 日付を指定して過去の残高を確認

<p>We are pleased to announce that cryptact has added profit and loss calculation support for Sei, a Layer 1 blockchain, as the second phase of <a href="https://www.cryptact.com/news/Kudasai-collaboration">our collaboration with KudasaiJP, Japan's largest Web3 community, and Omakase Co., Ltd</a>. For DeFi transactions covered by cryptact’s DeFi dictionary, users can simply sync their wallet address to automatically retrieve their deposit and withdrawal history, after which the system identifies the transaction types and completes the tax-related profit and loss calculations.</p><p>cryptact, KudasaiJP, and Omakase Co., Ltd. have been working together to support community members with their tax returns through <a href="https://www.pafin.com/news/news-event-announce-250123">AMA session on social media</a> and <a href="https://www.pafin.com/news/news-event-announce-250227">live broadcast on YouTube</a>, and <a href="https://www.cryptact.com/en/news/pr-support-berachain-en">Berachain support</a>.&nbsp;<br>This blockchain support is part of that ongoing collaboration. With this update, DeFi users can now accurately and efficiently calculate their profits and losses on transactions conducted on Sei, streamlining the tax return process.</p><p>For more details about DeFi features, please refer to our <a href="https://support.cryptact.com/hc/ja/articles/5482686022425">help page</a>.</p><p>Going forward, cryptact will continue to expand support for the latest blockchains and scalability solutions to offer smooth profit and loss calculations.</p><h3>About Sei</h3><p>Sei is a Layer 1 blockchain that provides high-performance infrastructure for the digital asset market. Since its mainnet launch in 2023, Sei has processed billions of transactions across over 35 million wallets. Now running on Devnet, the V3 Giga update enhances performance and offers a groundbreaking new scaling solution for the Ethereum ecosystem. The team is backed by Multicoin, Jump, Coinbase Ventures, and many more.</p><p>To learn more about Sei, please visit <a href="https://www.seifdn.org">https://www.seifdn.org</a>.&nbsp;</p><p><br>Contacts: <a href="mailto:pr@pafin.com">pr@pafin.com</a></p>

cryptact now automates profit and loss calculations for transactions on Sei.

Sei Now Supported by cryptact, in Collaboration with KudasaiJP and Omakase Co., Ltd.

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KudasaiJPおよびOmakaseとの連携に伴うSEIチェーン対応のお知らせ

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7万人以上が利用した仮想通貨の税金シミュレーション、新税制および個人事業主に対応

<p>We are pleased to announce that we have completed the following updates to our service. &nbsp;</p><h3>New Supported Exchange: BTSE</h3><ul><li><strong>BTSE:</strong><ul><li>File support: Spot Trades, and Lending Rewards.</li></ul></li></ul><h3>New File Support: CoinSwitch</h3><ul><li><strong>CoinSwitch:</strong> Support files for Trades, and Futures files.</li></ul><h3>File Additional Support/Improvements: bitFlyer, Coincheck, CoinDCX, NEXO</h3><ul><li><strong>bitFlyer: </strong>Supported "貸借料" and "返還" in the Trade file (Relevant file fields: Type).</li><li><strong>Coincheck:</strong> In the industry-standard format file, the hard fork history of LSK is not reflected because the old and new LSK are treated as the same coin.</li><li><strong>CoinDCX: </strong>Updated file time zone.</li><li><strong>NEXO</strong>: Supported header change for Futures file</li><li><strong>NEXO</strong>: Supported “LIQUIDATION FEE,” "MARKET_CLOSE," and “MARKET_OPEN” &nbsp;in the Futures file (Relevant file fields: Type).</li></ul><p>The updated features are available <a href="https://grid.cryptact.com/">here.</a></p><p>&nbsp;</p>

Crypto tax calculations: Simplified.  ■New Supported Exchange: BTSE ■New File Support: CoinSwitch ■Others



Now Supporting BTSE and CoinSwitch Files

bitFlyerすべての取引ファイルの「貸借料」、「返還」に対応

<p>We are pleased to announce that cryptact have added support for Berachain.&nbsp;&nbsp;<br>With this support, cryptact now automates profit and loss calculations for transactions on Berachain.</p><p><a href="https://www.cryptact.com/news/Kudasai-collaboration">As part of our collaboration with KudasaiJP, Japan's largest Web3 community, and Omakase Co., Ltd.,</a> cryptact now supports profit and loss calculation for Berachain<sup>1</sup> transactions.&nbsp;&nbsp;<br>For DeFi transactions covered by cryptact’s DeFi dictionary, users can simply sync their wallet address to automatically retrieve their deposit and withdrawal history, after which the system identifies the transaction types and completes the tax-related profit and loss calculations without any manual input.<br><br>KudasaiJP and Omakase Co., Ltd. and cryptact have been working together to support community members with their tax returns through <a href="https://www.pafin.com/news/news-event-announce-250123">AMA session on social media</a> and <a href="https://www.pafin.com/news/news-event-announce-250227">live broadcast on YouTube</a>. This blockchain support is part of that ongoing collaboration. With this update, KudasaiJP community members and DeFi users can now accurately and efficiently calculate their profits and losses on transactions conducted on Berachain, streamlining the tax return process.</p><p>For more details about DeFi features, please refer to our <a href="https://support.cryptact.com/hc/ja/articles/5482686022425">help page</a>.</p><p>Going forward, cryptact will continue to expand support for the latest blockchains and scalability solutions to offer smooth profit and loss calculations.</p><h3>About Berachain</h3><p>Berachain is an Ethereum Virtual Machine (EVM)-compatible Layer1 blockchain built using the Cosmos SDK. Its mainnet launched in February 2025.&nbsp;&nbsp;<br>With over $3 billion in Total Value Locked (TVL), it ranks as the seventh-largest blockchain<sup>2</sup>.</p><p><sup>1</sup> Berachain: <a href="https://www.berachain.com/">https://www.berachain.com/</a>&nbsp;&nbsp;<br><sup>2</sup> DefiLlama, April 2025: <a href="https://defillama.com/chains">https://defillama.com/chains</a></p><p>Contacts: <a href="mailto:pr@pafin.com">pr@pafin.com</a></p>

cryptact now automates profit and loss calculations for transactions on Berachain.

Support for Berachain in Collaboration with KudasaiJP and Omakase Co., Ltd.

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KudasaiJPおよびOmakaseとの連携に伴うBerachain対応のお知らせ

税制改正・規制動向記事一覧