Sell a losing stock and buy it right back the next day, and the IRS erases your deduction — sell a losing crypto position and buy it right back, and as of 2026 the loss still stands. That asymmetry exists because cryptocurrency is treated as property, not a security, and the wash-sale rule only reaches stock and securities. It's one of the few places where crypto's regulatory ambiguity actually works in the investor's favor — but only if the sale is real, the basis is documented, and it happens before the calendar turns.
Table of Contents
- Key Takeaways
- Why the Wash-Sale Rule Doesn't Reach Crypto
- Worked Example: Harvesting Without Waiting
- The Mechanics: How Harvesting Actually Works
- Documentation: Specific Identification vs. Broker Basis
- The Catch
- Year-End Strategy Moves
- Putting It All Together
- Frequently Asked Questions
Key Takeaways
- The wash-sale rule (IRC 1091) does not currently apply to cryptocurrency. It applies only to "stock or securities," and the IRS has treated crypto as property since Notice 2014-21 — a classification that hasn't changed for 2026.
- You can sell a losing position and immediately buy it back without the 30-day waiting period stocks require, keeping your market exposure while still locking in the deductible loss.
- Realized losses offset gains dollar-for-dollar, then up to $3,000 of ordinary income per year, with the rest carried forward indefinitely.
- The strategy lives or dies on documentation — specific identification of which lots you sold, at what basis, is what turns a harvested loss into a defensible one.
- Legislative proposals to close this gap exist but haven't passed. Treat the current rule as the law of this tax year, not a permanent feature.
Why the wash-sale rule doesn't reach crypto
The wash-sale rule under IRC 1091 disallows a loss deduction if you sell "stock or securities" at a loss and buy substantially identical stock or securities within 30 days before or after the sale. It's written narrowly, by design, around a specific asset category.
Cryptocurrency doesn't fall into that category. Since Notice 2014-21, the IRS has treated virtual currency as property for federal tax purposes — the same bucket as a piece of real estate or a stamp collection, not the same bucket as a share of stock. Because Section 1091 only reaches stock and securities, a crypto sale at a loss simply isn't a "wash sale" under the current statute, no matter how quickly you repurchase.
You might expect Congress to have closed this by now — after all, the gap has been public knowledge for years. Lawmakers have in fact proposed extending wash-sale treatment to digital assets more than once, most recently in a 2026 bill referred to committee. None of these proposals have been enacted. Until one is, the rule that applies is the one on the books today: no wash-sale restriction for crypto.
Worked example: harvesting without waiting
Say you bought 3.5 SOL at $187 each in January 2025, for a total cost of $654.50. By late November 2026, SOL has dropped to $121, making your position worth $423.50 — an unrealized loss of $231.
You sell all 3.5 SOL on November 28, realizing a $231 capital loss. Because there's no wash-sale restriction, you can repurchase 3.5 SOL the same afternoon, or even seconds later, at essentially the same $121 price. Your market position is unchanged — you still hold 3.5 SOL — but you've locked in a $231 loss that can now offset other 2026 gains, and your basis in the new SOL resets to whatever you paid on the repurchase.
Compare that to a stock investor in the identical situation: selling a losing position and repurchasing it within 30 days would disallow the loss entirely, adding it instead to the basis of the new shares. The crypto investor gets to use the loss this year; the stock investor has to wait it out.
(Figures are illustrative for teaching purposes only and don't represent actual market prices or any specific investor's holdings.)
The mechanics: how harvesting actually works
The core moves are straightforward, but timing and basis matter:
- Identify positions trading below your cost basis as of the date you plan to sell — not below their all-time high, below what you specifically paid for those units.
- Execute a real, completed sale on or before December 31 for the loss to count in the current tax year. A pending or unsettled order doesn't count; the disposition has to be complete.
- Repurchase immediately if you want to maintain exposure, since no 30-day window applies. Many investors buy back within minutes or the same day.
- Track the new basis and new acquisition date on the repurchased units — the clock resets, and if you're relying on long-term capital gains treatment down the road, this restarts your holding period at day one.
Documentation: specific identification vs. broker basis
Harvesting decisions get made lot by lot, not position by position — and this is where exchange-reported data and your own records can diverge. If you bought SOL across four separate purchases at four different prices, you need to know which specific lot you're selling to calculate the actual loss.
The IRS has long allowed specific identification of units, provided you can substantiate acquisition date, basis, and fair market value for the units in question, now formalized on an account-by-account basis under current Treasury regulations. If you don't specifically identify a lot, the default is first-in-first-out — which may not be the highest-loss lot available to you.
This matters because for 2025 transactions, Form 1099-DA reports gross proceeds only — not cost basis. Whatever number your exchange shows you for "cost basis" this year may be incomplete, especially for assets you moved in from another wallet or exchange. Harvesting off a number you haven't personally verified risks realizing the wrong loss amount, or claiming a loss on a lot that doesn't actually have one. For a fuller picture of how disposals need to be reported once you've harvested, see how to report crypto gains and losses on your return.
The catch
Honest limitations worth sitting with before year-end:
The rule is current law, not a permanent guarantee. Proposals to apply wash-sale treatment to digital assets have been introduced in Congress; the exemption isn't written in stone.
Crypto-linked securities are different. Spot crypto isn't a security under Section 1091, but crypto ETFs and crypto-related stocks are, so the wash-sale rule fully applies to those.
The $3,000 annual limit on offsetting ordinary income is real. Under IRC 1211(b), losses beyond your capital gains are capped at $3,000 per year against other income, with the rest carried forward indefinitely under IRC 1212(b).
The transaction still has to be a genuine sale. Aggressive same-second round-trips purely to generate losses can draw scrutiny even without a wash-sale statute to invoke.
Repurchasing resets your holding period. If you were close to the one-year mark for long-term treatment, harvesting and rebuying starts that clock over.
Year-end strategy moves
With the no-wash-sale window still open for 2026, a few practical moves:
- Run a full unrealized gain/loss report across every wallet and exchange, not just your primary trading account, before December 31.
- Match harvested losses against realized gains from earlier in the year first — losses offset gains dollar-for-dollar before touching the $3,000 ordinary-income limit.
- Prioritize specific identification of your highest-basis, most-underwater lots rather than letting an exchange default to FIFO.
- Document the sale and repurchase with timestamps and transaction IDs to substantiate a genuine disposition.
- Revisit this every year. This is exactly the kind of year-end tax-loss harvesting move that only works if you check current crypto wash-sale rule status annually.
Where Harness comes in
Coordinating harvest timing, lot-level basis, and the interaction with your broader portfolio's gains and losses is exactly the kind of year-end planning a specialist advisor is built for. Harness connects you with tax advisors who track current crypto tax developments, including emerging trends in crypto tax-loss harvesting, so your December 31 moves hold up on the return you file next spring.
Putting it all together
Three conditions make crypto loss harvesting work: the sale has to be genuine and completed by December 31, the lot you're claiming a loss on has to be specifically identified with documented basis you can defend, and you're checking current law each year rather than assuming this exemption is permanent. Get all three right, and repurchasing immediately after harvesting is a real, available strategy for 2026 — not a loophole waiting to be closed on you mid-transaction.
Frequently Asked Questions
Does the wash-sale rule apply to cryptocurrency in 2026? No. IRC 1091 applies only to stock and securities, and the IRS treats cryptocurrency as property, not a security. As of 2026, no legislation has changed that classification, so crypto sales at a loss aren't subject to the wash-sale disallowance.
Can I sell crypto at a loss and immediately buy it back? Yes, under current law. Unlike stocks, there's no 30-day waiting period required to preserve the deductibility of the loss. Your basis in the repurchased crypto resets to the new purchase price, and your holding period starts over.
How much of a crypto loss can I deduct against my other income? Capital losses first offset capital gains dollar-for-dollar. Beyond that, up to $3,000 per year ($1,500 if married filing separately) can offset ordinary income, with any remaining loss carried forward to future tax years indefinitely.
Will Congress eventually apply the wash-sale rule to crypto? Possibly. Bills proposing to extend wash-sale treatment to digital assets have been introduced in Congress, but none had been enacted as of this article's publication. Investors should confirm current law each tax year rather than assume the exemption is permanent.
What records do I need to support a harvested crypto loss? Documentation showing the specific lot sold, its acquisition date, its cost basis, the sale date, and sale proceeds. Because 2025 Form 1099-DA reporting includes proceeds but not cost basis, your own basis records — not just the exchange's summary — are what substantiate the loss.
Does the wash-sale exemption apply to crypto ETFs or crypto stocks? No. Crypto ETFs and publicly traded stocks of crypto-related companies are securities, so the wash-sale rule applies to them in the same way it applies to any other stock or fund.
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