Crypto Tax-Loss Harvesting Before December 31, 2026
A capital loss offsets capital gains, and a net loss beyond that offsets up to $3,000 of other income ($1,500 if married filing separately); the rest carries forward (Schedule D). For a 2026 loss, the sale has to happen in 2026.
Finding the lots
- Load your history into Lotsift and type today's prices in settings, like
BTC=95000, ETH=2600. - The open lots table shows each lot's unrealized gain or loss and whether it would be short- or long-term if sold on the as-of date.
- Losing lots that are short-term offset short-term gains first, which are taxed at ordinary rates.
Wash sales
The wash-sale rule in section 1091 is written for stock and securities. Whether it applies to a particular crypto sale and repurchase is a question for your tax adviser; Lotsift doesn't apply or remove wash-sale adjustments.
Not tax advice.
Last reviewed 2026-10-28. General information, not tax advice. Your tax adviser can tell you what applies to you.