Crypto Tax-Loss Harvesting: How It Works & the Wash Sale Question

Short answer: Tax-loss harvesting means selling crypto below your cost basis to realize a capital loss, which can offset capital gains plus up to $3,000 a year against other income, with the rest carried forward. Crypto is more flexible than stocks because the wash sale rule, IRC section 1091, applies to securities – and the IRS classifies crypto as property, so the rule does not currently apply. Congress has repeatedly proposed changing this, so re-check yearly.

Tax-loss harvesting is a deliberate, legal way to use a losing position to reduce your tax bill – but the rules matter, and crypto’s loophole may not last forever.

How does tax-loss harvesting work?

The strategy: sell crypto trading below what you paid, realize the capital loss, and use it to offset capital gains elsewhere (plus up to $3,000/year against ordinary income in the US, carrying the rest forward). Many investors then buy the same asset back to keep their position.

Why is crypto different from stocks?

Why crypto is different: the wash sale rule (IRC section 1091) disallows a loss if you rebuy a “substantially identical” security within 30 days – but it applies to stocks and securities, and the IRS classifies crypto as property, so the rule does not currently apply to most crypto. That makes harvesting more flexible than with shares.

What are the risks and cautions?

The cautions: (1) Congress has repeatedly proposed extending wash-sale rules to digital assets – re-check the law every year. (2) The general economic substance doctrine still exists; instant sell-rebuy with no market exposure carries some risk, and many advisers suggest waiting or rotating into a different (not identical) asset. (3) A loss only counts when it’s real and reported – track lots carefully and file Form 8949 for every harvested sale. See our guide to reporting on Form 8949 and our cost basis methods guide.

Frequently asked questions

Does the wash sale rule apply to crypto?

Not currently. The wash sale rule (IRC section 1091) disallows a loss if you rebuy a substantially identical security within 30 days, but it applies to stocks and securities, and the IRS classifies crypto as property, so the rule does not currently apply to most crypto. Congress has repeatedly proposed extending it to digital assets, so re-check the law every year.

How much loss can I claim against my salary?

Capital losses offset capital gains first, plus up to $3,000 a year against other income (including salary) in the US, with the rest carried forward.

Can I buy the same coin straight back?

Many investors buy the same asset back to keep their position, since the wash sale rule does not currently apply to most crypto. But the economic substance doctrine still exists; an instant sell-rebuy with no market exposure carries some risk, and many advisers suggest waiting or rotating into a different (not identical) asset.

Related guides

• Short-Term vs Long-Term Capital Gains: Why the 1-Year Line Matters
• Cost Basis Methods: FIFO, HIFO & Specific ID – Pick Before You Sell
• How to Report Crypto on Your Taxes: Form 8949 & Schedule D, Step by Step

Sources

• IRC section 1091 – loss from wash sales of stock or securities.
• IRS Publication 550 – investment income and expenses, including wash sales.
• IRS Topic No. 409 – capital gains and losses.

This guide is general education only – not tax, legal or financial advice. Verify with the source authority and a qualified tax professional before filing.