Crypto Taxes in the United States Explained: The IRS Rules, Form 8949, and Form 1099-DA

Short answer: For U.S. federal taxes, the IRS treats digital assets as property, not currency, and that single classification generates almost every rule in this guide. Because crypto is property, selling it, trading it for another asset, or spending it is a disposition: you compute a capital gain or loss as the proceeds minus your basis, which is generally what the asset cost you in U.S. dollars. Held one year or less, the gain is short-term; held more than one year, long-term. Because crypto is property, receiving it as payment, as mining or staking rewards, or in an airdrop following a hard fork is ordinary income at its fair market value when you receive it. Every individual return carries a yes-or-no digital assets question that must be answered, dispositions of capital assets are reported on Form 8949, and since January 1, 2025, custodial brokers report your gross proceeds to the IRS on Form 1099-DA, with basis reporting phasing in for transactions from January 1, 2026. Everything in this guide comes from the IRS's own digital assets guidance, read in full for this guide on October 21, 2026, and every dollar figure in the examples is hypothetical.

The One Classification That Decides Everything

The IRS digital assets page opens with the sentence the whole system hangs on: for U.S. tax purposes, digital assets are considered property, not currency. A digital asset, in the tax definition, is any digital representation of value recorded on a cryptographically secured distributed ledger or similar technology, and the IRS's examples include convertible virtual currencies and cryptocurrencies such as Bitcoin, stablecoins, and NFTs.

Two consequences follow immediately. First, the general tax principles that apply to property transactions apply to crypto transactions, which is why the familiar machinery of basis, holding periods, and capital gains shows up unchanged. Second, paying for something with crypto is not like paying with dollars. Handing a merchant dollars is not a taxable event. Handing a merchant crypto is a disposition of property at fair market value, with a gain or loss measured against what that crypto cost you. The same is true of trading one crypto asset for another: each trade is a sale of the asset you gave up. People who traded actively for years without appreciating this point are the standard cautionary tale, and the IRS page's list of what counts as a disposition, reproduced in the next section, leaves no room for the misunderstanding.

What Counts as a Taxable Event

The IRS structures its guidance around the digital assets question printed on federal returns: at any time during the tax year, did you receive digital assets as a reward, award, or payment for property or services, or sell, exchange, or otherwise dispose of a digital asset or a financial interest in one. You must answer yes or no. The page then spells out both answers.

You check yes if you:

You check no if you only: held assets in a wallet or account without transacting; bought crypto with U.S. or other real currency and did nothing else; or transferred crypto between wallets or accounts you own or control, with one exception the IRS flags in the same breath: if you paid the transfer fee in crypto, that fee payment is itself a transaction.

Two rows deserve emphasis. The trade row is the one new investors most often miss: swapping one token for another is a sale of the first token, taxable in dollars, whether or not any dollars were involved. And the spending row has no de minimis exception in the IRS's presentation: a disposition in any amount is a disposition, which is why paying for small purchases with appreciated crypto creates a small taxable gain and a record-keeping entry each time.

Basis, Holding Periods, and the Gain Calculation

The basis of a digital asset is generally its cost in U.S. dollars. To compute a gain or loss, the IRS lists what you need for each transaction: the type of asset, the date and time, the number of units, the fair market value at the time in U.S. dollars, and the basis of the units sold. Sold units held as a capital asset for one year or less produce short-term gains or losses; more than one year, long-term. The character matters because the two are taxed under different rate structures, and the holding period runs per lot, per purchase, which is why a recurring purchase schedule creates a stack of lots with different clocks, as our dollar-cost averaging guide warns.

Two fully worked hypothetical examples. Every figure is invented for illustration.

Example one: a simple sale. You buy 0.5 BTC for a total of $20,000, an implied $40,000 per coin. Fourteen months later you sell 0.2 BTC for $12,000. The basis of the units sold is 0.2 divided by 0.5 of your total cost, which is $8,000. The gain is $12,000 minus $8,000, which is $4,000. Because you held the units more than one year, the gain is long-term. The remaining 0.3 BTC keeps its $12,000 of basis and its original purchase date. Had you sold at eight months instead, the same $4,000 would be short-term. The arithmetic is identical; only the label, and the rate applied to it, changes.

Example two: income first, then a second tax event. You receive staking rewards worth $300 on the day they land. That $300 is ordinary income in the year of receipt, reported with other ordinary income from forks, staking, and mining, which the IRS directs to Schedule 1 of Form 1040. The rewards also take a basis of $300. A year later you sell them for $360. The sale is a disposition with a $60 capital gain on top of the income already taxed. New holders consistently find the two-step surprising: the receipt is taxed once as income, and the later appreciation is taxed again as a gain, with the basis step in between preventing the same $300 from being taxed twice.

Identifying which units you sold. When you own the same asset bought at different prices, the calculation depends on which units are treated as sold. The IRS's framework expects you to identify the units, and its record-keeping requirement is the enforcement mechanism: taxpayers must maintain records documenting purchases, receipts, sales, exchanges, and dispositions, with fair market values, sufficient to establish the positions taken on the return. A transition rule matters for anyone holding pre-2025 balances: Revenue Procedure 2024-28 allows taxpayers to allocate unused basis across the units held in each wallet or account as of January 1, 2025, moving to the wallet-by-wallet basis tracking the broker reporting rules assume. If your history spans many wallets and years, that allocation, done once and documented, is the foundation every later Form 8949 stands on. Our worked three-wallet example of the per-wallet basis rules shows how such an allocation and the 2026 identification rules play out.

Gifts and Donations

Two transfers sit outside the sale framework and have their own forms. If you give crypto as a gift, the IRS directs the giver to Form 709, the United States Gift Tax Return, which is where large gifts are reported; the recipient does not report the gift itself as income, because the digital assets question's income list covers receipts as payment, reward, award, mining, staking, and airdrops, and a gift is none of those. The recipient does inherit a record-keeping problem: when they later sell, their basis and holding period derive from the giver's under the property rules for gifts, which is one more reason the acquisition records in the checklist below should travel with the asset, not stay in the giver's files.

Donating crypto to a charity runs the other direction. The IRS's publications list for digital asset holders includes Publication 526, Charitable Contributions, because a donation of property is not a sale: the general property principles mean no capital gain is realized on the transfer itself, and the contribution is handled under the charitable deduction rules, which turn on the type of organization, the holding period, and substantiation that grows stricter with the amount. Appraisals and additional forms enter quickly at higher values. Anyone donating a position large enough to matter should read Publication 526 and take advice before the transfer, not after, because the substantiation rules are applied as written and cannot be repaired retroactively.

The Wash Sale Question

Anyone arriving from stock trading asks about the wash sale rule, which defers a loss when you sell a security and buy it back within 30 days. The statute, Internal Revenue Code Section 1091, is written about stock and securities. The IRS classifies digital assets as property, and its digital assets guidance does not apply a wash sale rule to them. That is the state of the law as the IRS presents it in the guidance read for this guide: as of October 2026, no enacted wash sale rule covers digital assets, though Congress has considered extending the rule to them in past tax bills without passing the change into law. The latest attempt, H.R. 10357, cleared the House Ways and Means Committee 38 to 5 on September 16, 2026 and has not passed the full House; our wash sale guide reads its text and keeps the status dated. Treat this paragraph as a description of where the law stands, not as a planning technique. The absence of a wash sale rule is not the absence of the IRS's other tools, including the economic substance doctrine and the general requirement that losses be genuine, and a filing position built on rapid loss harvesting is exactly the kind of position to review with a tax professional before relying on it. Canada takes a different approach through its 61-day superficial loss rule, explained in our guide to how crypto is taxed in Canada. As of October 23, 2026 a bill to extend the rule to traded digital assets, H.R. 10357, had passed the House Ways and Means Committee but not the full House; the dated status and a three-lot worked example under both rule sets are in our crypto wash sale rule guide.

Form 1099-DA: What Your Broker Now Tells the IRS

The Infrastructure Investment and Jobs Act amended Section 6045 to require broker reporting on digital assets, and the Treasury and IRS final regulations put it on a new form, Form 1099-DA, Digital Asset Proceeds from Broker Transactions. The phase-in, as the IRS states it:

Transition relief softens the first years: for 2025 transactions, the IRS will not impose penalties on brokers who make a good faith effort to file correctly and on time, and Notices 2024-56 and 2025-33 provide backup withholding relief across 2025 and 2026. None of that relief runs to the taxpayer's own duty. The IRS's instruction is unconditional: if you have digital asset transactions, you must report them whether or not they result in a taxable gain or loss, and the duty does not depend on receiving a form. A year with trades on an offshore platform, a non-custodial wallet, or a venue that later shut down is still a year with reportable transactions, reconstructed from your own records, which returns this guide to the IRS's recurring theme: the records are the return, assembled in advance.

If your first Form 1099-DA has arrived with the basis column empty, our box-by-box guide to Form 1099-DA shows how to carry each line onto Form 8949 and supply the missing basis from your own records.

The Record-Keeping Checklist

Drawn directly from the IRS's lists of what a taxpayer needs, per transaction, on both sides:

For every acquisition: type of asset; date and time; number of units; fair market value in U.S. dollars at acquisition; and how you got it (purchase, payment, mining, staking, airdrop), because the route decides whether the receipt was income and what basis the units carry.

For every disposition: type of asset; date and time; number of units; fair market value in U.S. dollars; the basis of the specific units disposed of; and the holding period that follows from their acquisition date.

At the account level: which wallet or exchange holds what, since the post-2025 basis framework is wallet-by-wallet, plus your Revenue Procedure 2024-28 allocation if you made one. Most exchanges export transaction histories; exporting them at year end, while the venue definitely still exists and definitely still lets you log in, is the cheapest insurance in this entire guide. Our exchange reserve risk checklist explains why assuming a platform will be there when you need its records is itself a risk position.

Frequently Asked Questions

I only bought crypto this year and never sold. Do I owe tax?

Buying with U.S. dollars and holding creates no gain or loss, and the IRS's own list puts you in the check-no category for the digital assets question if that is all you did: you purchased but did not sell, and merely held. The tax events begin when you dispose of an asset or receive one as income. Your basis records from the purchase year still matter, years later, when the first sale happens.

Is trading one cryptocurrency for another really taxable? No dollars were involved.

Yes. The IRS lists exchanging a digital asset for another digital asset among the dispositions you answer yes to, and the general property principles do the rest: you are treated as having sold the first asset at its fair market value at the moment of the trade. This is the single most expensive misunderstanding in retail crypto tax, because an active trader can generate hundreds of taxable sales in a year of swapping, each needing a dollar value and a basis.

My exchange never sent me any form. Am I clear?

No. The IRS's instruction to report does not condition on receiving a form, and the 1099-DA regime only covers custodial brokers, phasing in from 2025 for gross proceeds. Trades on non-custodial venues, foreign platforms, or through wallets produce no form at all and the same tax. The form is the IRS's copy of part of your activity, not the definition of it.

Are stablecoins taxed differently? Their price does not move.

Stablecoins are digital assets in the IRS's definition, expressly listed. Selling or spending a stablecoin is still a disposition, and because the price is designed to hold at a dollar, the gain or loss is usually tiny, sometimes a few cents of rounding. The reporting mechanics do not shrink with the amounts, which is why the broker rules allow certain stablecoin sales to be reported on an aggregate basis above de minimis thresholds. Tiny is not the same as exempt.

Does any of this apply outside the United States?

No. This guide is U.S. federal treatment only, sourced from the IRS. Other countries classify and tax crypto under their own systems, with different structures rather than merely different rates, and some of the distinctions above, such as the wash sale position, reverse elsewhere. Use your own tax authority's guidance, which for most countries now includes a dedicated digital asset page of its own. For UK residents, our HMRC guide explains the same-day, 30-day and pooling rules that replace lot-by-lot basis there.

What is the most common filing error the IRS is positioned to catch now?

A mismatch between the digital assets question, the forms, and the broker reports. The question must be answered on every return; Form 1099-DA now tells the IRS your gross proceeds at custodial brokers whether or not your return mentions crypto; and Form 8949 is where the matching detail belongs. Answering no while a broker reports proceeds in your name is the kind of discrepancy that automated matching exists to find. The defense is the boring one this guide keeps returning to: complete records, kept per wallet, from the first transaction.

Sources

The worked examples use invented prices and amounts, labeled hypothetical in place, and demonstrate arithmetic rather than any real taxpayer's situation. State and local taxes, which many states layer on top of the federal treatment described here, are outside this guide's scope, as are the special regimes for dealers, miners operating as businesses, and retirement accounts.

CryptosEyes publishes general educational research, not investment, legal, or tax advice. U.S. crypto tax turns on individual facts, acquisition dates, and account structures that no guide can see. If your history includes high-volume trading, DeFi activity, foreign platforms, or unfiled prior years, have a qualified tax professional review it before you file.