Update for 2026: Your CoinTracker cost basis settings (FIFO, HIFO, LIFO, etc.) must match your exchange's cost basis settings (often referred to as “tax lot relief method”) to comply with new IRS rules and to avoid tax errors. If you don't update these settings, you'll still be able to file, but you may have inaccurate reporting. Learn more about cost basis methods.
- Wallet/exchange changes: Adding or removing wallets/exchanges.
- Transaction edits: Adding, removing, or editing transactions from previous years.
- Cost basis changes: Modifying your cost basis method or cost basis tracking. Ultra plan customers can set cost basis by year.
- Product updates: Improvements like better accounting or DeFi categorization.
If you'd like to freeze your past transactions and keep your transaction history stable, see our guide to freezing transactions.
For US customers
If your historical calculations have changed and you have questions about tax amendments or audits, refer to these IRS resources:
- Tips on How to Amend Your Tax Return
- Choosing a Tax Professional
- Should I file an amended return
- Refund Claims
For UK customers
If your historical calculations have changed and you have questions about correcting a past tax return or how to handle the changes under UK rules, refer to these HMRC resources:
- If you need to change your return
- Check if you need to pay tax when you sell crypto assets
- Tell HMRC about unpaid tax on crypto assets
Disclaimer: CoinTracker is provided for informational purposes and is not intended as tax, audit, accounting, investment, financial, or legal advice. For financial, tax, or legal advice, please consult your own professional. See our full disclaimer.