Wash Sale Rules and Crypto: The Loophole That Won't Last

“This guide has been reviewed for accuracy by Leanne Grant, Enrolled Agent, specializing in cryptocurrency tax compliance and IRS representation.”

, Reviewed by Leanne Grant, EA

If you trade stocks, you already know the frustration of the wash sale rule: sell at a loss, buy back too soon, and the IRS disallows your deduction. But as of May 2026, cryptocurrency operates under a different set of rules, and that difference creates a significant, time-limited tax planning opportunity.

This guide explains exactly how the wash sale rule works, why it does not currently apply to crypto transactions, and what you should be doing right now before Congress closes the gap.

What Is the Wash Sale Rule? (Section 1091 Basics)

The wash sale rule is codified in Section 1091 of the Internal Revenue Code. It was designed to prevent taxpayers from manufacturing artificial tax losses while maintaining their economic position in an investment.

Here is how it works in practice:

1. You sell a stock or security at a loss.
2. Within 30 days before or after the sale, you purchase a "substantially identical" stock or security.
3. The IRS disallows the loss deduction.

The disallowed loss is not permanently gone, it gets added to the cost basis of the replacement shares. But the immediate tax benefit disappears.

The 30-day window is strict. It applies 30 days before the sale and 30 days after, creating a 61-day total window. If you buy back within that period, the wash sale rule triggers automatically.

“The wash sale rule creates a 61-day blackout window around any stock loss. For crypto, that window does not exist, yet.”

, Garrett Taylor, CPA

Why Wash Sales Don't Apply to Crypto (Yet)

This is the critical distinction that creates the current opportunity: cryptocurrency is not a security under federal tax law.

In Notice 2014-21, the IRS established that virtual currency is treated as "property" for federal tax purposes. This classification has far-reaching consequences, but one of the most significant is that it places crypto outside the reach of Section 1091.

Section 1091 specifically applies to "stock or securities." The statutory language does not mention property broadly, and it does not include digital assets. Because the IRS treats Bitcoin, Ethereum, and other cryptocurrencies as property, similar to real estate, collectibles, or precious metals, the wash sale rule simply does not apply.

As of May 2026, this remains the law. You can sell crypto at a loss and repurchase the exact same asset one second later without triggering any wash sale disallowance.

The "Property vs Securities" Distinction

Understanding why this loophole exists requires understanding the fundamental classification difference between stocks and crypto under the tax code.

Crypto sits in the "property" bucket alongside real estate and collectibles. You would not trigger a wash sale by selling an investment property at a loss and immediately purchasing another property. The same logic applies to crypto.

However, and this is the key caveat, this classification is a policy choice, not an immutable law of nature. Congress can change it at any time. The SEC has separately argued that certain tokens may qualify as securities under the Howey test for regulatory purposes, but that securities law classification has not yet altered the tax treatment under Section 1091.

Crypto Tax-Loss Harvesting: How It Works

Tax-loss harvesting is the practice of strategically selling investments at a loss to offset capital gains or reduce taxable income. With stocks, the wash sale rule severely limits this strategy. With crypto, the absence of wash sale restrictions makes it dramatically more powerful.

Here is the basic concept:

• You hold a crypto asset that has declined in value below your cost basis.
• You sell the asset, realizing the capital loss.
• You immediately repurchase the same asset if you want to maintain your position.
• You claim the capital loss on your tax return.

The loss can offset capital gains dollar-for-dollar. If your capital losses exceed your capital gains for the year, you can deduct up to $3,000 of excess losses against ordinary income ($1,500 if married filing separately). Remaining losses carry forward to future tax years indefinitely.

This strategy works with any crypto asset, Bitcoin, Ethereum, altcoins, stablecoins that have lost their peg, even staking rewards that have declined in value.

Step-by-Step Tax-Loss Harvesting Strategy

Here is a practical framework for executing crypto tax-loss harvesting while the wash sale exemption remains in effect:

Step 1: Identify Unrealized Losses

Review your entire crypto portfolio and identify positions trading below your cost basis. Pay special attention to your cost basis method, whether you use FIFO, LIFO, HIFO, or specific identification will significantly affect which lots show losses. Our digital asset reconciliation service can help you map this out precisely.

Step 2: Calculate the Tax Impact

Before selling, calculate the expected tax benefit. Consider your marginal tax rate, existing capital gains for the year, and whether the losses would offset short-term gains (taxed at ordinary income rates, up to 37%) or long-term gains (taxed at 0%, 15%, or 20%).

Step 3: Execute the Sale

Sell the depreciated crypto asset on your exchange. Document the transaction: date, amount, sale price, and cost basis of the specific lot sold.

Step 4: Repurchase (If Desired)

Because the wash sale rule does not apply, you can repurchase immediately. Your new cost basis will be the repurchase price, there is no basis adjustment like there would be with securities.

Step 5: Document Everything

Maintain records of both the sale and repurchase. While the IRS does not currently require wash sale tracking for crypto, thorough documentation protects you if rules change retroactively or if your return is audited.

Legislative Proposals to Close the Loophole

Congress has made multiple attempts to extend wash sale rules to digital assets. While none have passed as of May 2026, the trajectory is clear: this loophole is living on borrowed time.

Build Back Better Act (2021)

The most significant legislative attempt came in the Build Back Better Act, which passed the House in November 2021 but stalled in the Senate. Section 138153 of the bill would have amended Section 1091 to include "digital assets" alongside stocks and securities. The provision would have applied to transactions after December 31, 2021.

The bill's failure did not represent Congressional endorsement of the crypto wash sale exemption, it failed for unrelated political reasons. The wash sale extension had bipartisan support.

Subsequent Proposals

Multiple subsequent bills and budget proposals have included similar provisions. The Tax Foundation and other policy organizations have analyzed these proposals, and the consensus is that extending wash sale rules to crypto is a matter of "when," not "if."

The Joint Committee on Taxation estimated that closing this loophole would generate approximately $16.8 billion in revenue over ten years, a figure that makes it an attractive revenue offset for future legislation.

What This Means for You

Every year that passes without legislation is another year you can harvest crypto losses without wash sale restrictions. But planning as if the exemption is permanent would be a mistake.

What Changes If Wash Sales Are Extended to Crypto

If Congress does extend Section 1091 to digital assets, here is what would change:

1. 30-day restriction applies. You could no longer sell and immediately repurchase the same crypto. You would need to wait at least 31 days.
2. "Substantially identical" test applies. Buying a wrapped version of the same token (e.g., selling ETH and buying WETH) would likely trigger the wash sale rule.
3. Loss disallowance. Losses on wash sales would be disallowed and added to the cost basis of replacement assets.
4. Cross-account tracking required. Wash sales would apply across all your wallets and exchanges, not just within a single account.
5. Spousal transactions included. Purchases by your spouse within the 30-day window would also trigger the rule.

The strategic landscape would shift dramatically. Crypto tax-loss harvesting would still work, but you would need to either wait 31 days (accepting price risk) or swap into a "not substantially identical" asset, such as selling BTC and buying ETH to harvest the BTC loss while maintaining general crypto market exposure.

A CPA who specializes in digital assets can help you identify tax-loss harvesting opportunities, calculate the potential tax impact, ensure proper reporting, and stay informed about legislative developments. At COS Elite, crypto tax planning, including tax-loss harvesting strategies, is a core part of our tax services.

If you have experienced lost or stolen crypto, that situation involves different rules entirely and would likely remain unaffected by wash sale changes.

Worked Example: "$50,000 in Tax Savings Through Crypto TLH"

Let's walk through a realistic scenario that illustrates the power of crypto tax-loss harvesting under current rules.

Meet Rachel

Rachel is a high-income professional in the 37% federal tax bracket. She holds 10 ETH purchased at $4,000 each, for a total cost basis of $40,000.

The Market Drops

ETH declines to $2,500. Rachel's 10 ETH are now worth $25,000, an unrealized loss of $15,000.

Rachel's Tax-Loss Harvest

1. Rachel sells all 10 ETH for $25,000, realizing a $15,000 capital loss.
2. She immediately repurchases 10 ETH at $2,500 each.
3. Her new cost basis is $2,500 per ETH ($25,000 total).

If This Were Stocks (Wash Sale Applies)

The $15,000 loss would be completely disallowed under Section 1091. The disallowed loss would be added to the basis of her replacement shares, and Rachel would receive no current-year tax benefit.

Because This Is Crypto (No Wash Sale)

Rachel claims the full $15,000 capital loss on her tax return. She still holds 10 ETH and has the same market exposure she started with.

The Tax Savings

Rachel has $60,000 in short-term capital gains from other crypto-to-crypto trades this year. The $15,000 loss offsets those gains directly:

• $15,000 loss x 37% marginal rate = $5,550 in federal tax savings
• Plus state tax savings (varies by state)
• Rachel's net taxable crypto gains drop from $60,000 to $45,000

Now multiply this across multiple assets and multiple market dips throughout the year. Sophisticated investors who harvest losses on every significant dip, in BTC, ETH, SOL, and other holdings, can generate tens of thousands in tax savings annually.

“Rachel saved $5,550 in federal taxes by harvesting a single crypto loss, and she never gave up her ETH position. With stocks, that deduction would have been disallowed entirely.”

, Worked Example Result

Risks and Limitations of Crypto Tax-Loss Harvesting

Tax-loss harvesting in crypto is powerful, but it is not without risks. Consider these factors before implementing the strategy:

1. Transaction Costs

Every sale and repurchase incurs exchange fees, network gas fees, and potential spread costs. These costs reduce the net tax benefit. For smaller positions, the costs may outweigh the savings.

2. Price Movement Risk

Even though you can repurchase immediately, prices can move in the seconds between your sale and repurchase. In volatile markets, you could sell at $2,500 and repurchase at $2,550. For large positions, consider using limit orders or executing on exchanges with deep liquidity.

3. Tracking Complexity

Every harvest event creates a new tax lot with a new cost basis and a new holding period. If you harvest frequently, your cost basis records become complex. Working with a firm that specializes in digital asset reconciliation prevents errors that could cost more than the harvesting saves.

4. Legislative Risk

If wash sale rules are extended to crypto retroactively (unlikely but possible), previously harvested losses could be challenged. Most practitioners consider retroactive application improbable, but it is worth noting as a tail risk.

5. The $3,000 Cap

If you do not have capital gains to offset, your usable loss deduction is limited to $3,000 per year against ordinary income. Excess losses carry forward, but the immediate benefit is capped. This makes the strategy most valuable when you have realized gains to offset.

6. Wash Sale Rules May Apply to Certain Tokens

If a specific token is deemed a "security", either through SEC action or judicial ruling, the wash sale rule could apply to that token even without new legislation. This is an evolving area of law. The safe assumption is that Bitcoin and Ethereum are property, but less established tokens carry more classification risk.

Disclaimer: This article is for informational purposes only and does not constitute tax advice. Tax laws are subject to change, and the wash sale exemption for crypto could be modified by future legislation. Consult with a qualified tax professional before implementing any tax strategy. COS Elite provides personalized crypto tax planning, contact us to discuss your specific situation.