Use complete source data
Work from original exports and contemporaneous records. Do not enter guessed values as if they were verified.
Swap calculator
Crypto-to-crypto swap calculator
Compare the adjusted basis of the asset disposed with the fiat value received.
Practical guidance
Measure a crypto-to-crypto exchange
Use contemporaneous fiat values in one consistent currency. Enter the adjusted cost of the asset given up, the market value received, and relevant fees. Save evidence showing how each market value was established.
Review the result
Check dates, currency, quantities, fees, and assumptions before using an output in tax software or a filing.
Retain your evidence
Save original statements and notes that allow you or an adviser to reproduce the result.
Frequently asked question
Why use fiat values for a swap?
Tax calculations generally need a common measurement currency, even when no cash was received. Local rules determine the actual treatment.
Is information uploaded?
No. This tool runs locally in your browser. Analytics records page usage, not the financial values you enter.