How to use Capital Gains Estimator
Enter cost basis and disposal proceeds (and fees if you fold them in). Read illustrative gain or loss. Keep official lots elsewhere.
Example: selling crypto for a $5,000 gain
You bought crypto for $10,000 and sold it for $15,000. You assume a 15% tax rate.
- Gain = $15,000 − $10,000 = $5,000
- Estimated tax = $5,000 × 15% = $750
- After-tax gain = $5,000 − $750 = $4,250
Keep $14,250 of the $15,000 sale. Your real rate depends on your country and holding period, so use your own rate. This is an estimate, not tax advice.
Formula & methodology
gain ≈ proceeds − basis (− fees you include). Not a full lot-matching engine.
Sketch crypto capital gains before tax software
A quick gain/loss sketch helps you see whether a disposal is material before you export CSVs. It is not a filing product.
Multi-wallet transfers, airdrops, and income events need proper tooling. When in doubt, talk to a tax professional.
Pair with the profit calculator for trade-level P&L that is still not tax advice.
All CryptonicTools utilities are free, mobile-first, and require no account.