The wash-sale rule does not currently apply to crypto. Internal Revenue Code section 1091 disallows a loss when you sell “stocks or securities” and buy substantially identical ones within 30 days, and the IRS treats crypto as property rather than a security. So under today’s rules, selling a coin at a loss and rebuying it shortly after is generally allowed. Congress has repeatedly proposed closing this gap, so treat it as current treatment that could change, not a permanent feature.
Part of our guide: Crypto Taxes.
The short version
- The wash-sale rule (IRC 1091) applies to “stocks or securities.” It disallows a loss when substantially identical ones are bought within 30 days before or after the sale.
- The IRS treats crypto as property, not a security (Notice 2014-21), so the wash-sale rule does not currently reach it.
- This lets a holder realize a crypto loss and reestablish the position quickly, which is not permitted for stocks.
- The treatment is current, not guaranteed. Legislation to extend the rule to digital assets has been proposed repeatedly.
- Even where the wash-sale rule does not apply, the economic-substance and other general tax doctrines still exist, so contrived transactions carry their own risk.
What the wash-sale rule actually says
The wash-sale rule exists to stop investors from booking a tax loss without truly giving up their position. If you sell a security at a loss and buy a substantially identical one within the 30-day window on either side of the sale, the loss is disallowed for now. It is not lost forever: the disallowed loss is added to the basis of the replacement, so it comes back when you finally exit. The mechanism is a timing rule aimed squarely at securities.
Why crypto sits outside it today
The rule’s reach is defined by the words “stocks or securities.” Because the IRS classifies crypto as property rather than as a security, a coin generally falls outside that language. That single classification is what lets crypto loss harvesting work in a way stock harvesting cannot. The distinction is not a loophole someone invented; it follows directly from how digital assets have been characterized for tax purposes.
Virtual currency is treated as property, and general tax principles applicable to property transactions apply to transactions using virtual currency.
IRS, Notice 2014-21
How tax-loss harvesting works while this holds
Under current treatment, a holder sitting on an unrealized loss can sell to realize it, use that loss against capital gains and, within limits, against ordinary income, and reestablish exposure without waiting out a 30-day window. The realized loss is measured the normal way, proceeds minus basis, and reported on Form 8949 and Schedule D. Careful basis tracking still matters, because the point of harvesting is defeated if you cannot prove which lot you sold and at what cost.
Why this could change
This is the caveat that carries the whole answer. Proposals to extend the wash-sale rule to digital assets have appeared in multiple legislative efforts, and the direction of the conversation has been toward inclusion rather than exemption. A change could take effect prospectively, so a strategy that is fine this year may not be next year. Anyone building a loss-harvesting habit around the current treatment should confirm it is still current before relying on it, rather than assuming a rule from a prior year still stands.
What I actually see
The most common mistake is assuming the stock rule already applies, and needlessly waiting 30 days to rebuy. That caution costs nothing in tax but can cost real money if the position moves while the holder sits out.
The opposite error is treating the current treatment as permanent and building an aggressive, repeated harvesting program on the assumption that it will always be available. The rule that governs this could move, and a plan that ignores that is fragile.
The third is sloppy lot tracking. Harvesting only works if you can identify the specific lot sold and its basis. Without that, the loss you claim is an estimate, and an estimate is not a defense.
Where this goes wrong
A holder harvests losses all year on the current treatment, keeps no clean lot-level records, and then the law changes or an examiner asks which coins were sold. The strategy was sound under the rules that applied, but it rested on records that were never kept and on an assumption that the treatment would not move. The tax position and the recordkeeping failed together.
The decision rule
- Confirm the wash-sale treatment is still current for the tax year before harvesting, since proposals to change it recur.
- Track losses at the lot level, with basis and dates, so each harvested loss can be identified.
- Report realized losses properly on Form 8949 and Schedule D, matching the specific lots sold.
- Do not manufacture artificial transactions, since general anti-abuse doctrines still apply even without the wash-sale rule.
- Revisit the strategy if the law changes, because a prospective rule can turn a fine practice into a disallowed one.
If your loss-harvesting plan assumes this year’s rule is permanent and does not keep lot-level records, it is resting on two things that may not hold.
Where this sits
The wash-sale question is really a records question. Specific identification is how you pick which lot to sell for a loss. Reconstructing cost basis is the fallback when lots were not tracked. Broader tax planning is where harvesting fits a strategy. It all reports through Crypto Taxes.
Sources
- IRC Section 1091, Loss from wash sales of stock or securities (Cornell Law)
- IRS, Publication 550, Investment Income and Expenses (wash sales)
- IRS, Notice 2014-21, virtual currency is property
- IRS, About Form 8949
- IRS, Digital assets
Related
- What is specific identification for crypto?
- How to reconstruct crypto cost basis
- Crypto tax planning for HNW investors
- Common crypto tax record mistakes
- Crypto tax records checklist
Last updated: 5 August 2026.
This article is general education, not legal, tax, or investment advice. Tax outcomes depend on your facts, your records, and current law, which is still developing for digital assets. Talk to a qualified CPA about your own situation.
