Crypto tax software turns thousands of wallet and exchange transactions into figures a tax return can use. Off-the-shelf consumer tools serve individual investors. Exchanges and brokers that must report their users' transactions, accountancy firms with crypto clients, funds, and companies building their own tax product often need software that fits their data, their clients and the rules of their country. That is what we build.
Who Needs Custom Crypto Tax Software
- Exchanges, brokers and wallet providers: in the EU, the DAC8 directive requires crypto-asset service providers to collect user data and report transactions to tax authorities from 2026. The OECD's CARF framework sets similar rules in many other countries.
- Accountants and tax advisors who handle crypto clients and need reliable, reviewable calculations instead of spreadsheets.
- Funds and companies holding crypto on the balance sheet, where tax and bookkeeping must reconcile.
- Startups building a crypto tax SaaS product for a specific market.
What the Software Does
- Import from exchange APIs, CSV exports and on-chain wallets across chains, via blockchain indexing.
- Classify every event: trade, own transfer, fee, staking reward, airdrop, DeFi deposit or withdrawal, NFT sale.
- Value each event in euros (or another currency) at the right moment.
- Apply the rules: cost basis methods such as FIFO where gains are taxed, year-end values where holdings are taxed on value (as for private investors in the Netherlands), and income treatment for rewards.
- Report: tax summaries, regulatory files, and an audit trail from every figure back to the original transaction.
Built for Rules That Change
Tax rules for crypto differ per country and keep changing. We keep the rules configurable and separate from the data processing, so an update to the rules does not mean rebuilding the system. The tax logic itself is defined together with your tax advisors; we build software, not tax advice. See also crypto P&L calculators for performance reporting on the same data.
Frequently Asked Questions
Does this cover DAC8 reporting?
We can build the data collection, validation and reporting files your organisation needs under DAC8 or CARF, based on the specifications and guidance that apply to you.
How are DeFi transactions handled?
With protocol-specific logic that recognises deposits, withdrawals, rewards and swaps, plus manual review for anything the software cannot classify with certainty.
Can it connect to our accounting system?
Yes. Results can be exported or posted to your accounting software through its API.
Who owns the code?
Ownership of the source code is set out in the contract, and the code can be fully yours, including documentation and tests.
Part of our blockchain development work. See also software for finance.
Build Your Crypto Tax Solution
Tell us who your users are, which countries you serve and where the data comes from. We will design software that keeps up with both the data and the rules.