Automatically calculate your crypto P&L
Crypto tax returns,
made easier.
- Domestic and overseas exchanges, DeFi and NFTs all supported on the Free plan
- Check and manage your P&L from Claude or ChatGPT through AI integration
- Import up to 100,000 transactions a year for free
Start for free with just your email address
Crypto tax simulator
No.1 in usersNo.1 in supported coinsNo.1 in supported exchangesAutomatic support for a wide range of exchanges and crypto assets
Upload the transaction history files from domestic and overseas exchanges, or connect via API, and complex P&L calculations run automatically.
NFT and DeFi transactions are just as easy: enter a wallet address and the P&L is calculated.
200,000+
Total users
34,038
Crypto assets
190
Exchanges & blockchains
With cryptact, calculate P&L for any transaction on the Free plan
Domestic and overseas exchanges, DeFi and NFTs are all covered on the Free plan. Start calculating P&L for every kind of transaction for free. Easily import up to 100,000 transactions per year, so you can get started without worrying about how many you have.
- Simulation results may differ from your actual tax. This is a simplified simulation; use it only as a guide.
Tedious crypto P&L calculations, done automatically with cryptact
Connect domestic and overseas exchanges via API or upload transaction history files, and the P&L is calculated automatically.
Dramatically cut the time and effort P&L calculations take, for simpler, more efficient and more accurate results.
Connect exchanges via API
The largest number of API-supported exchanges in Japan. Connect the exchanges you have traded on via API and your past transaction history is reflected in cryptact.
Upload your files
Upload all of your transaction history, such as files downloaded from exchanges or custom files created for unsupported exchanges. If any uploads are missing, a support feature alerts you automatically.
AI integration
Crypto P&L calculations
and tax filing through AI chat
Just chat with AI — ask "What's my P&L for 2026?" and the calculation runs for you. Connect with Claude or ChatGPT to handle everything from crypto P&L calculations to transaction history edits, all through chat to prepare for tax filing.
Available from the Free plan
cryptact's features
5 strengths no one else has
No.1 overall in JapanA P&L calculation service you can trust
No.1 overall for supported exchanges, coins and transaction types, and No.1 for users in Japan. Price data is fetched every minute for more accurate P&L calculations. A trusted service used by tax accountants too.
Safe for first-timersTry a wealth of features for free
Start calculating P&L for domestic and overseas exchanges, DeFi and NFTs, all for free. Trades on unsupported exchanges can be calculated automatically with custom files. Import up to 100,000 transactions.
No.1 in Japan for API-supported exchangesEasy calculations even with huge trade volumes
API integration with over 30 exchanges, the most in Japan. Fetch your transaction history in one click. Supports over 5 million transactions a year.
Enter a wallet addressand DeFi trades are identified and calculated
Just enter a wallet address and your whole history is imported automatically. Transaction types are then identified and calculated automatically, drastically reducing manual work.
No need to be an expertBuilt-in P&L calculation support
A built-in guide walks you step by step through everything a P&L calculation needs. Just follow the on-screen instructions and even complex P&L calculations become easy.
What customers who filed their tax returns with cryptact say
2024年から利用
2025年より利用
2023年より利用
Wide support for exchanges, services and blockchains in Japan and abroad
Automatic support for more than 190 exchanges and blockchains in Japan and abroad, around 600 services and more than 34,038 crypto assets.
We keep adding support; if there is something you need, please contact support.
*Exchanges with API integration also support file uploads.
*Even unsupported exchanges can be calculated automatically by uploading a custom file.
and around 600 more services supported
Pricing
Free
$0
/year
$0/month
Transactions/year
Free plan key features:
- Live portfolio view
Average cost (ACB), FIFO, LIFO + more
200+ fiat pairs, 10+ reporting currencies
- 34,038 cryptocurrencies
Unlimited exchanges & wallets
DeFi automated classification
NFT transaction support
Custom transactions/file support
- Upload file size up to 50 MB
AI integration (MCP / CLI)
Basic
$45
/year
~$3.75/month
Transactions/year
Everything in Free, and:
- Data retention
- Email support
- Ledger download
Complete tax reports (all years)
Prime
Recommended
$139
/year
~$11.58/month
Transactions/year
Everything in Basic, and:
Auto-renewal discount
- Upload file size up to 200 MB
Pro
$249
/year
~$20.75/month
Need more transactions per year?
Everything in Prime, and:
- Corporate fiscal year-end setting
Conditions apply to the annual transaction limit for Pro Unlimited. Please review them before purchasing. Read conditions All prices are in US Dollars. The final amount may vary due to credit card fees or exchange rate fluctuations.
Please note that payments are non-refundable once confirmed. Additionally, paid plans will automatically renew unless you change your settings after purchase.
cryptact is also used by
more than 130 tax accountants and CPAs
Takuya Tanabe
Cointax Inc.cryptact is more accurate in its calculations than any other service, and the data it outputs is easy to verify.
Calculating P&L on crypto trades is extremely complex, especially if you use several exchanges, trade on overseas exchanges, use different currencies (yen, dollars and so on) or swap one crypto for another. cryptact converts everything to Japanese yen automatically from your transaction history using price data fetched every minute, so there is no need to convert to yen yourself and no worry that the result drifts far from your actual trades.
I have used it since launch, and the supported exchanges, currencies and usability keep improving, so it gets easier to use every day.
Some parts of crypto P&L calculation are hard to handle on your own, but cryptact calculates following the National Tax Agency's guidelines and flags odd transactions as errors, so mistakes are unlikely. I highly recommend it.
Yuichi Murakami
Certified Public Accountant OfficeJust connect a wallet address to easily import DeFi transaction data, and with automatic identification it's easy to use even for frequent traders.
cryptact not only supports many exchanges in Japan and abroad automatically, it can also import transaction history from many of them via API, and it collects market prices for a very large number of crypto assets automatically.
For anyone who used to gather and calculate information in a different format for each exchange, it should greatly reduce the effort of collecting and applying transaction history and market prices.
DeFi and NFT trading, a market growing every day, can also be imported just by connecting a wallet address, and with automatic identification it feels very easy to use for frequent traders. If you upload your transaction history regularly, it also becomes easy to understand your asset position and plan how to manage it toward the end of the year.
Crypto taxes:
do you have these misconceptions?
My annual P&L on the exchange is under ¥200,000,
so I don't need to file a tax return
The P&L shown on an exchange can differ from your P&L for tax purposes.
I only swapped crypto for crypto and never converted to yen, so I made no profit
Even if your yen balance didn't change, swaps between crypto assets count toward your profit calculation.
I invested only a small amount,
so I don't need to calculate P&L
As a rule, P&L is calculated with the total average cost method, so it often differs from what you expect.*
*For individuals in Japan
cryptact, also used by tax accountants, supports the total average cost methodso you can file your tax return with confidence
Individuals in Japan are, as a rule, required to calculate with the total average cost method.
With this method you often turn out to have a profit even when you feel you've made a loss.
Question
What is the P&L?
*Trades within the same year *Calculated per 1 coin bought/sold *Using the total average cost method
Buy crypto for ¥1.5 million
Sell for ¥1.4 million
Buy for ¥900,000
A profit of ¥200K
First, find the average purchase price for the year
(¥1.5M × 1) + (¥0.9M × 1) = ¥2.4M
¥2.4M ÷ 2 coins = ¥1.2M
Subtract the average purchase price from the sale price
¥1.4M - ¥1.2M = ¥0.2M
Start using cryptact
today!
No credit card required.
Just register your email address to use it for free.
