On September 16, 2026, the House Ways and Means Committee passed a crypto tax bill by a vote of 38-5. The Digital Asset Tax Certainty Act would extend the wash sale rule to crypto. That rule blocks a tax loss if you rebuy the same asset within 30 days of the sale. Crypto has stayed outside it, letting investors harvest losses and rebuy right away. The bill isn’t law yet, but it puts that strategy in question. That leaves U.S. crypto holders with a pressing question: does the wash sale rule apply to your trades?
The answer depends on what you hold, how quickly you rebuy, and whether pending bills become law. You need to know how the rule works and where it already reaches crypto. You also need to know what the pending bills would change, and when they could apply.
Key Takeaways
- Under current law, the wash sale rule in Internal Revenue Code (IRC) Section 1091 covers stock and securities, and most spot crypto falls outside it
- The rule already applies to crypto exchange-traded funds (ETFs) and tokenized securities
- Pending bills, including H.R. 10357, would extend the rule to most digital assets
- As introduced, these bills apply to sales after their introduction date, so they could reach trades made before enactment
- Related-party rules and the economic substance doctrine can still block some loss claims
What Is the Wash Sale Rule?
The wash sale rule stops investors from claiming a tax loss while keeping the same investment. It is set out in IRC Section 1091.
How Does the Wash Sale Rule Work?
A wash sale happens when you sell stock or securities at a loss and, within 30 days before or after the sale, you:
- Buy substantially identical stock or securities
- Acquire them in a fully taxable trade
- Acquire a contract or option to buy them
Buying through your individual retirement account (IRA) or Roth IRA counts too, under Revenue Ruling 2008-5. The window covers 61 days: 30 days before the sale, the sale date, and 30 days after.
What Happens to the Disallowed Loss?
The loss is not permanently lost. It is added to the cost basis of the replacement shares, which defers the tax benefit until you sell them. The exception is an IRA purchase, where the IRA’s basis doesn’t increase.
Example:
Maya buys 100 shares of a stock for $5,000 and sells them for $3,500, a $1,500 loss. Ten days later, she buys 100 shares again for $3,600. The $1,500 loss is disallowed. Her new basis is $5,100: the $3,600 price plus the $1,500 disallowed loss. Under current law, the same trades in spot Bitcoin (BTC) would leave her $1,500 loss deductible.
Does the Wash Sale Rule Apply to Crypto in 2026?
For most spot crypto, no, not under current law. The rule does already cover some crypto-linked assets, though. Other tax rules can also block a loss, even when the wash sale rule doesn’t.
Why Most Crypto Falls Outside IRC Section 1091
The Internal Revenue Service (IRS) treats digital assets as property, not currency. Section 1091 applies only to stock and securities. Since most spot crypto is neither, the rule doesn’t apply when you sell it at a loss. No current law extends the rule to digital assets in general.
Where the Rule Already Applies to Crypto
Some crypto-related assets fall under the rule today:
- Tokenized securities: The IRS Schedule D instructions state the wash sale rules generally apply to digital assets that are also stock or securities.
- Crypto exchange-traded funds (ETFs): ETF shares are securities, even when they hold Bitcoin or another crypto. Selling one at a loss and rebuying within the window can disallow the loss.
Other Rules That Can Still Block a Crypto Loss
Falling outside Section 1091 doesn’t make every loss deductible:
- Related-party sales: You can’t deduct a loss on a sale to a related party, such as a family member.
- Economic substance: The IRS can challenge trades that exist only to cut taxes. Frequent, instant sell-and-rebuy cycles carry the most risk.
Why the Answer Could Change Soon
Congress is considering bills that would extend the wash sale rule to most digital assets. As introduced, they would apply to sales after their introduction dates, not after enactment. That means today’s trades could be affected if a bill becomes law in that form.
How Does the Crypto Wash Sale Loophole Work?
Because most spot crypto falls outside Section 1091, investors can currently sell at a loss and rebuy without an automatic disallowance. This is known as the crypto wash sale loophole. Here’s how it works in practice.
Step 1: Find a Position Worth Less Than You Paid
Compare each holding’s current value with its cost basis. Any position below its basis carries an unrealized loss. That loss doesn’t count for tax purposes until you sell.
Step 2: Sell to Realize the Loss
Selling the position turns the paper loss into a realized capital loss. Record the sale date, proceeds, cost basis, and any fees. These records support the loss on your return.
Step 3: Rebuy the Same Asset
Under current law, rebuying the same spot crypto right away doesn’t disallow the loss. You keep your market position while locking in the loss.
This step carries risk. The IRS can challenge trades that lack economic substance. Pending bills could also reach sales made after their introduction dates. The step also doesn’t work for crypto ETFs or tokenized securities, which the wash sale rule already covers.
Step 4: Report the Loss on Your Tax Return
Report the sale on Form 8949 and carry the totals to Schedule D. The loss first offsets your capital gains. Any remaining net loss can reduce ordinary income by up to $3,000 a year ($1,500 if married filing separately). Unused losses carry forward to future years.
Step 5: Track Your New Cost Basis and Holding Period
The asset you rebuy starts fresh. Its cost basis is the new purchase price, and its holding period restarts. If you sell it within one year, any gain is short-term.
What Is the Economic Substance Doctrine?
Falling outside Section 1091 doesn’t leave the IRS without tools. The economic substance doctrine is codified in IRC Section 7701(o). It applies regardless of asset class.
How the IRS Uses It Against Crypto Wash Sales?
Under the doctrine, a transaction must meaningfully change your economic position. It must also serve a substantial purpose other than cutting taxes. A sale and rebuy within seconds may struggle to meet that test.
What Passes the Economic Substance Test?
No IRS guidance sets a safe waiting period for crypto. These factors generally affect how a transaction looks:
- A real market reason for the sale, such as rebalancing or risk management, supports your position
- Time spent out of the asset, where prices can move, adds genuine economic exposure
- Repeated same-day cycles at scale carry the highest risk
- Isolated, well-documented trades carry less
Does the Wash Sale Rule Apply to Crypto ETFs?
Spot crypto and crypto-linked investment products, such as crypto ETFs, are treated differently by the IRS. This distinction matters for investors who hold both, as it can affect their tax liability. Let’s understand the difference with a table.
Factor | Spot Crypto | Crypto ETF / Securities-Based Vehicle |
IRS Classification | Property | Security (ETF shares) |
Section 1091 Applies? | No, currently outside wash sale rules | Yes, ETF is a security, rules apply |
Sell at a Loss and Rebuy Within 30 Days Before or After | Loss currently allowed | Loss may be disallowed |
Example | Selling BTC directly on Coinbase | Selling a spot Bitcoin ETF on a brokerage |
Risk Level | Lower under current law | Higher, wash sale rule fully applies |
Recommended Action | Still exercise caution | Wait more than 30 days before or after a loss sale, or confirm a replacement isn’t substantially identical |
What This Means for ETF Investors
- Holding a spot Bitcoin ETF is not the same as holding Bitcoin directly for tax purposes
- Selling a crypto ETF at a loss and rebuying within 30 days may disallow the loss
- The underlying asset, being crypto, does not exempt the ETF from Section 1091
- Two ETFs holding the same asset may be argued as substantially identical, so confirm with a tax professional before switching
- Always confirm with a tax professional before harvesting losses on crypto ETF positions
Legislative Attempts to Close the Crypto Wash Sale Loophole
The push to bring crypto under wash sale rules has a longer history than most investors realize. Here’s how it has unfolded:
2021: The First Shot
The House Ways and Means Committee included explicit wash sale language for digital assets in a proposed tax package, the first serious legislative attempt to close the loophole.
2021: Build Back Better Passes the House
The Build Back Better Act included wash sale language for digital assets. It passed the House but stalled in the Senate.
2022: The Inflation Reduction Act Leaves It Out
The Inflation Reduction Act became law without the digital asset wash sale provision.
2024: Back on the Table
Treasury’s fiscal year 2025 budget proposals again called for extending the wash sale rule to digital assets.
June 2026: H.R. 9172 Is Introduced
The Applying Existing Tax Anti-Abuse Rules to Digital Assets Act would apply wash sale and constructive sale rules to digital assets. As introduced, its wash sale changes apply to dispositions after its June 8, 2026 introduction date.
September 2026: H.R. 10357 Clears Committee
The Ways and Means Committee passed the Digital Asset Tax Certainty Act 38-5 on September 16, 2026. It would extend the wash sale rule to most digital assets, excluding qualified U.S. dollar stablecoins. It still needs full House passage, Senate approval, and the President’s signature.
What Happens if the Wash Sale Rule Is Extended to Crypto?
If Congress extends Section 1091 to digital assets, the rule would likely work as it does for stocks today. Here’s is how it will work on crypto:
- Rebuying a substantially identical asset within 30 days before or after a loss sale would disallow the loss
- The disallowed loss would be added to the new position’s basis
- Wrapped or tokenized versions of the same asset could count as substantially identical
- Under H.R. 10357, qualified U.S. dollar stablecoins would be excluded
Impact on Investor Strategies
An extension of the wash sale rule wouldn’t just change one strategy, it would reshape how active crypto traders approach portfolio management entirely. Here’s what would need to shift:
- Active loss harvesters would need to track purchase and sale dates carefully across all platforms
- Rotating into a different token would become the primary loss harvesting strategy
- Portfolio rebalancing timelines would need to account for the 30-day window
- Tracking purchase and sale dates across every platform would become essential
What Would Not Change?
A rule extension would introduce new constraints, but it wouldn’t eliminate the core value of tax loss harvesting as a strategy. Several things would remain firmly in place:
- Capital losses would still offset gains, plus up to $3,000 of ordinary income each year
- Long-term holding strategies would be unaffected
- Selling at a loss and staying out for more than 30 days would still preserve the loss
How KoinX Helps You Navigate Crypto Wash Sale Rules?
Loss harvesting depends on exact records: what you paid, when you sold, and when you bought back. Those details are often spread across exchanges and wallets. If wash sale rules reach crypto, the dates will matter even more. KoinX brings your transaction history into one place so you can review each trade.
Review Gains and Losses Across Your Entire Portfolio
The capital gains preview shows the gain or loss on each sale across all your transactions. You can review positions before year-end and see which sales created losses.
Track Sale and Repurchase Dates Across Every Account
The Transaction History Report lists every trade, transfer, reward, and fee in one chronological ledger. Filter the Excel version by asset and date. That shows whether you bought the same asset within 30 days before or after a loss sale.
Maintain Accurate Cost Basis Across All Wallets and Exchanges
Import transactions from your exchanges and blockchain wallets into one dashboard. The Import Summary and Warnings Filter flag errors, missing data, and overlapping entries. Fix gaps with Quick Edit, or contact support for help. A missing purchase record can turn a real loss into a reported gain.
Every harvested loss needs a clear record of when you sold and when you bought back. Get started with KoinX to keep those dates and your cost basis in one place.
Conclusion
Today, most spot crypto sits outside the wash sale rule, so a loss sale followed by a quick rebuy isn’t automatically disallowed. That could change soon. H.R. 10357 has cleared committee, and as introduced, it reaches sales after its introduction date. Tokenized securities, crypto ETFs, related-party sales, and economic substance limits apply now.
Before you harvest a loss, check the latest status of the pending bills. Then decide whether to rebuy or switch assets, and record every date. Import your transactions into KoinX to track each sale and repurchase in one place.
Frequently Asked Questions
Is the Wash Sale Window 30 Days for Crypto in the U.S.?
Not for most spot crypto under current law. The 30-days-before-and-after window applies to stock, securities, and tokenized securities. However, pending bills would extend it to most digital assets, starting from their introduction dates as written. If you want to protect a loss against that risk, stay out of the asset for more than 30 days.
What Does "Substantially Identical" Mean for the Crypto Wash Sale Rule?
For stocks, it covers shares that are essentially the same investment. If the rule reaches crypto, the same token would almost certainly qualify. Pending legislation suggests wrapped or tokenized versions of a token could qualify too. The IRS hasn’t issued crypto guidance on this, so the final law’s wording will decide it.
Can I Harvest Crypto Losses by Swapping Into a Similar Coin in the U.S.?
Yes, under current law. Selling one token at a loss and buying a different token realizes the loss while keeping you invested. Avoid wrapped or tokenized versions of the token you sold, which could be treated as the same asset under pending bills. Record why you made each switch.
Can I Sell Crypto to a Spouse or Related Party and Claim the Loss in the U.S.?
No. Losses on sales to related parties, including family members, aren’t deductible, even when the asset isn’t a stock or security. This rule applies separately from the wash sale rule. A loss sale is only deductible when it’s made to an unrelated buyer, such as through an exchange.
