The Crypto Wash-Sale Rule Is Coming: What the Digital Asset Tax Certainty Act Means for Your Tax-Loss Harvesting
On September 16, 2026, the House Ways and Means Committee advanced the Digital Asset Tax Certainty Act by a lopsided 38–5 bipartisan vote. Buried inside a bill that touches stablecoins, mining, and staking is a new crypto wash-sale rule that could end one of the most popular moves in crypto tax planning: selling Bitcoin or Ethereum at a loss and buying it right back, while still claiming the loss on your taxes.
This is not law yet. The bill cleared committee, not the full House, and it hasn't passed the Senate or been signed by anyone. Lawmakers may fold it into a larger year-end tax package rather than pass it on its own, and the timeline from here is genuinely uncertain. But the direction is clear enough, and the specific mechanics of the proposed crypto wash-sale rule are concrete enough, that it's worth understanding now — before, not after, it changes how your tax-loss harvesting actually works.
Why There's Been No Crypto Wash-Sale Rule — Until Now
If you've harvested losses in a brokerage account, you already know the wash-sale rule: sell a stock at a loss, buy the same or a substantially identical security back within 30 days (before or after the sale), and the IRS disallows the loss. It gets added back to the cost basis of the replacement shares instead of vanishing — a deferral, not a tax break.
Crypto has never worked that way, for a simple structural reason: the IRS classifies digital assets as property, not as "stock or securities" under the Internal Revenue Code section that defines a wash sale. That classification means no crypto wash-sale rule has ever existed in practice — the rule, as written today, simply doesn't reach crypto. A Bitcoin holder can sell at a loss on December 30, lock in the tax loss, and buy the same coin back the next morning — with no 30-day waiting period, no disallowed loss, and the exact same market position restored almost instantly. This has been one of the most widely used year-end tax-loss harvesting strategies in crypto for years, precisely because nothing in the tax code stopped it.
What the New Crypto Wash-Sale Rule Would Actually Change
The bill would create a crypto wash-sale rule by extending the existing wash-sale rule to "widely traded digital assets," applying the same 30-day-before-or-after window that already governs stocks. If enacted as currently drafted, it would apply to crypto transactions completed after September 14, 2026 — meaning the effective date, if the bill becomes law, reaches back to before the committee vote itself. Qualified U.S. dollar stablecoins are carved out of the restriction, so this isn't aimed at routine stablecoin activity; it's aimed squarely at the loss-harvest-and-rebuy pattern on assets like Bitcoin and Ethereum.
Two other pieces of the bill are worth knowing, even though they get less attention than the wash-sale change:
Mining and staking rewards would be treated as ordinary income. An earlier draft would have deferred taxation on mining and staking rewards until the assets were later sold; that deferral was dropped from the version the committee actually approved. What remains unresolved, and flagged by at least one committee member during markup, is exactly when that income gets recognized — at the moment the rewards are received, or at some later point. That detail still needs to be settled before anyone can model the real impact.
A narrow de minimis exemption starting in 2028 would exclude network or transaction fees of $10 or less from capital gain or loss calculations. This is easy to misread as "small crypto purchases are tax-free" — it isn't. It only applies to the blockchain fee itself, not to the underlying transaction. Buying coffee with Bitcoin would still generate a reportable gain or loss on the coffee purchase; only the tiny network fee attached to that transaction would be excluded.
The Crypto Wash-Sale Rule Isn't Law Yet — So What Should You Actually Do Right Now
The honest answer is: nothing drastic, and nothing based on panic. A bill that cleared one committee by a wide margin has real momentum — committee chairman Jason Smith has called it the first federal law to directly address the tax treatment of digital assets, and its backers specifically designed it to raise revenue and avoid the complications that sank an earlier crypto bill, which gives it a genuinely better chance of passing than most legislation at this stage. But "better odds" is not "enacted," and the House hasn't even scheduled a floor vote. Selling or restructuring a portfolio today based on a bill that might still change in conference, or might not pass this Congress at all, is its own kind of mistake.
What's actually worth doing while this plays out:
Keep using tax-loss harvesting if it fits your situation — just don't assume the current rules are permanent. The strategy that works under today's law, with no crypto wash-sale rule in effect, may not work the same way for transactions completed after a bill like this is signed, and the proposed effective date reaching back to September 14, 2026 is a reminder that "wait until it passes" doesn't always mean "the old rules applied the whole time."
Track your cost basis meticulously, regardless of what happens to this bill. Whether or not the wash-sale rule ever reaches crypto, cost-basis tracking is already a mess for most crypto investors, particularly with broker reporting under Form 1099-DA still phasing in. A wash-sale rule that requires adjusting the basis of a repurchased asset only makes clean records more valuable, not less.
Watch the legislative calendar, not the headlines. The meaningful dates are a House floor vote, Senate action, and any changes made along the way — not the committee vote that already happened. A bill can look identical to its committee version and still change in ways that matter before it's signed.
If you've been relying on the loss-harvest-and-rebuy pattern as a recurring year-end strategy, model what your taxes would look like without it. Knowing the gap in advance is far more useful than discovering it the week you were planning to harvest losses.
Don't let this distract from getting current if you're already behind. If you have unfiled crypto taxes from prior years, a future wash-sale rule doesn't change that obligation, and getting current matters regardless of which direction this bill goes.
Why the Crypto Wash-Sale Rule Has Better Odds Than Most Crypto Bills
Crypto tax legislation has a history of stalling, and a similar but broader measure — the CLARITY Act — failed to advance earlier this year. What's different here, according to the bill's own framing, is that this version is structured to raise federal revenue (closing the wash-sale loophole does exactly that) and avoids the ethics and market-structure provisions that made the earlier bill politically harder to pass. A 38–5 committee vote, with support from both parties, is a meaningfully strong signal relative to how most tax legislation starts out. None of that guarantees passage, but it's a reasonable basis for taking the proposed crypto wash-sale rule seriously now rather than waiting for a final vote to start thinking about it.
Where the Crypto Wash-Sale Rule Gets Complicated Enough to Need Help
The crypto tax rules you're using today — on what you actually owe when you sell Bitcoin, on cost basis, on loss harvesting — are a snapshot of current law, not a permanent feature of how digital assets are taxed. A new crypto wash-sale rule is a concrete example of how fast that snapshot can change, with an effective date that, if enacted, would already be behind us by the time most investors read about it.
If you use tax-loss harvesting as part of your year-end crypto strategy, or you're not confident your cost-basis records would hold up if a crypto wash-sale rule adjustment suddenly applied retroactively to part of the year, that's worth reviewing now, while there's still time to plan around whatever Congress actually does.
If you'd like a second set of eyes on your crypto tax-loss strategy or your cost-basis records before this bill moves any further, schedule a free consultation and we'll walk through where you stand.
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