Crypto Wash Sale Rule: What Traders Need to Know

As of 2025, the wash sale rule does not officially apply to cryptocurrency in the United States. Because the IRS classifies crypto as property rather than a security, the wash sale rule under Section 1091 technically only covers stocks, bonds, and other securities. This has created a significant tax-loss harvesting opportunity for crypto traders, but proposed legislation could change this at any time.

What Is the Wash Sale Rule?

The wash sale rule prevents traders from claiming a tax loss on a security if they buy a “substantially identical” security within 30 days before or after the sale. For stock and options traders, this means you can’t sell a losing position, claim the loss, and immediately buy back the same asset.

For example, if you sell 100 shares of Apple at a $2,000 loss and repurchase Apple within 30 days, the IRS disallows that $2,000 loss. Instead, the loss gets added to your cost basis in the new shares, deferring the tax benefit until you eventually sell without triggering another wash sale.

This rule exists to prevent traders from generating artificial tax losses while maintaining the same economic position. It’s one of the most frustrating tax rules for active stock traders.

Why Crypto Has Been Exempt

Since the IRS treats cryptocurrency as property (like real estate or collectibles) rather than a security, Section 1091’s wash sale rule has not applied. This means a crypto trader could:

1. Sell Bitcoin at a $10,000 loss
2. Immediately buy back Bitcoin
3. Claim the full $10,000 loss on their tax return
4. Maintain their Bitcoin position with no interruption

This is a massive advantage for crypto traders doing tax-loss harvesting. During volatile periods, you could systematically lock in losses for tax purposes without actually changing your portfolio exposure.

Stock traders, by contrast, must wait 31 days or buy a different (not “substantially identical”) security to avoid the wash sale rule.

Proposed Changes and What to Watch

Congress has repeatedly introduced legislation to extend the wash sale rule to cryptocurrency. The Build Back Better Act and subsequent proposals included provisions that would treat digital assets as securities for wash sale purposes.

Key things to monitor:

• Any new tax legislation that redefines digital assets as securities
• IRS guidance that could broaden the interpretation of Section 1091
• Broker reporting rules taking effect in 2025 and beyond, which increase IRS visibility into crypto transactions

If and when the wash sale rule extends to crypto, the 30-day window will likely apply just as it does for stocks. Traders who currently rely on immediate buybacks for tax-loss harvesting will need to adjust their strategies.

How to Handle This as a Trader

Even without a formal wash sale rule for crypto, consider these best practices:

• Document everything meticulously in case rules change retroactively or the IRS challenges your position
• Use tax software like Koinly or CoinTracker that can flag potential wash sales
• Don’t assume the loophole is permanent: plan your tax-loss harvesting strategy with potential rule changes in mind
• Consult a trading tax accountant for significant tax-loss harvesting activity

If you’re new to crypto taxation, start with our overview of crypto trading taxes for beginners.

Key Takeaways

• The wash sale rule currently does not apply to crypto because the IRS classifies it as property, not a security
• This allows crypto traders to sell at a loss and immediately repurchase the same asset
• Proposed legislation could extend wash sale rules to digital assets at any time
• Document all tax-loss harvesting transactions thoroughly
• The exemption creates a real but potentially temporary tax advantage over stock trading

Frequently Asked Questions

Can the IRS retroactively apply wash sale rules to past crypto trades? While unlikely, tax law changes can sometimes have retroactive effective dates. Most proposals have targeted future tax years, but there’s no guarantee. Keep detailed records regardless.

Does the wash sale rule apply to NFTs? NFTs are also classified as property, so the same logic applies. However, the “substantially identical” test is easier to meet with fungible tokens like Bitcoin than with unique NFTs.

Should I still do tax-loss harvesting with crypto even if the rules might change? Yes, as long as you follow the current law and document everything. The tax savings today are real. If rules change in the future, they’ll almost certainly apply prospectively, not to trades you’ve already made under the current framework.

Risk Disclaimer: Trading involves substantial risk of loss. Past performance is not indicative of future results. See our full risk disclaimer.