Crypto Tax-Loss Harvest Optimizer
Realize losses to offset gains — DE/US/UK rules
📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Crypto Tax-Loss Harvest Optimizer
Calculate optimal crypto loss harvest for your jurisdiction. DE Spekulationsfrist, US loss-offset, UK CGT allowance — different rules, different strategies.
How to use this tool
- 1
Pick jurisdiction
DE/US/UK rules differ dramatically.
- 2
Enter holdings + losses
Realized + unrealized gains/losses.
- 3
Optimize harvest
Which losses to realize for max tax saved.
Frequently Asked Questions
DE Spekulationsfrist?
§23 EStG: Crypto held >1 year = tax-free at sale. Held <1 year = full income tax (up to 45%). Loss-harvest only useful for <1-year holdings. Spousenovum: 600€ Freigrenze annual.
US wash-sale rule for crypto?
IRS hasn't officially extended wash-sale to crypto (as of 2026). Means: sell at loss, immediately re-buy = loss still deductible. Stock has 30-day wash rule, crypto currently doesn't. Watch for legislation changes.
UK CGT?
Annual exempt amount £6,000 (2024-25), reducing to £3,000 (2025-26). Above: 10/20% rate. Same-day rule + 30-day matching rule similar to wash-sale.
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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.