Inventory
Include every exchange, wallet, chain and protocol used during the relevant period. A clean file cannot reveal a missing source.
Free · private · multi-file
Crypto Tax Records Health Check
Review structural gaps across exchange and wallet CSV exports, add supporting-evidence checks, and create a prioritized action plan.
Transparent methodology
What the score measures
Seventy percent of the score reflects detectable CSV structure and row-level completeness. Thirty percent reflects the supporting-evidence checklist. The tool looks for dates, assets, quantities, fiat values, transaction types and identifiers, then flags invalid fields and exact duplicate rows.
Repair copies
Keep originals unchanged. Normalize dates, schemas and missing values only in working copies with documented assumptions.
Apply local rules
Use the score to improve evidence, then classify and calculate transactions under current rules for your jurisdiction.
Important limitations
Does it reconcile transfers between files?
Not automatically. Different timestamps, fees, asset symbols and schemas make transfer inference error-prone. The health check identifies structural readiness before deliberate reconciliation.
Does a missing transaction ID always mean a problem?
No. Some valid exchange exports do not provide blockchain hashes or trade IDs. The score applies only a small deduction and treats it as a review signal.
Are filenames or results uploaded?
No. Analysis and report generation occur locally. Analytics can record a broad score band and file count, never filenames, raw rows or financial values.
Official recordkeeping references
Why these evidence categories matter
United States
The IRS identifies transaction type, date and time, units, fair market value and basis as information needed to calculate digital-asset gains or losses.
IRS digital-assets guidance →United Kingdom
HMRC’s manual describes records such as asset type, transaction date, units, sterling value, cumulative holdings, bank statements and wallet addresses.
HMRC recordkeeping manual →Canada
The CRA lists transaction details, addresses, counterparties and opening and closing balances, and recommends exporting records regularly.
CRA books and records guidance →Australia
The ATO provides current guidance on the crypto transaction and valuation records taxpayers should retain.
ATO crypto records guidance →Sources verified 13 August 2026. The checker’s categories are deliberately broader than any single jurisdiction and must not be read as a complete legal checklist.
Continue your records workflow
Download templates, inspect one export in more detail, or use the country pages to reach the relevant authority.