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For U.S. federal income tax purposes, digital assets are generally treated as property. Selling crypto for dollars, swapping it for another digital asset, or spending it on goods or services can therefore create a taxable gain or loss. To calculate it, compare the asset’s adjusted basis with the amount realized, keep the result in U.S. dollars, and preserve records that support both figures. A transfer between wallets you own is generally not itself a taxable disposition, but you should retain evidence of ownership and record any transaction fee.
When a crypto transaction creates a gain or loss
The IRS applies general property-tax principles to digital assets. A transaction’s tax treatment depends on what happened—not simply on whether a broker reports it. For a capital asset, a sale, exchange, or payment that disposes of the asset can produce a capital gain or loss. Some receipts, by contrast, may be ordinary income rather than capital gains.
| Event | Typical federal tax treatment | What to document |
|---|---|---|
| Sell crypto for U.S. dollars | Usually a capital disposition if the asset is held as a capital asset. Compare adjusted basis with amount realized. | Acquisition basis, sale proceeds, date, quantity, and allocable sale costs. |
| Exchange one digital asset for another | Can be a taxable disposition. The value of property received generally helps determine amount realized. | Both assets, their U.S.-dollar fair market values, transaction time, and fees. |
| Spend crypto on goods or services | Can be a disposition. The value of the goods or services received generally helps determine amount realized. | Asset basis, date and quantity spent, value received, and qualifying costs. |
| Move crypto between wallets or accounts you own | Generally not a taxable disposition by itself. Digital assets used or withheld to pay transaction services are a separate consideration. | Records linking both wallets or accounts to you, transfer details, and any fee. |
| Receive crypto for services | May be ordinary income at fair market value when received; that value generally becomes basis in the assets received. | Receipt date and time, quantity, U.S.-dollar value, and the related service or payment records. |
| Receive new assets after a hard fork | May create ordinary income when you have dominion and control over the new assets. A fork without receipt and control does not, by itself, create that income under the cited IRS guidance. | Fork and receipt details, control or access evidence, quantity, and fair market value at receipt. |
This table describes general federal treatment, not every fact pattern. Staking, lending, liquidity pools, airdrops, and other DeFi activity can involve details not resolved by these general rules. Do not infer that an event is tax-free merely because a broker does not report it.
How to calculate a capital gain or loss
For a disposition of a capital asset, subtract adjusted basis from amount realized. A positive result is a gain; a negative result is a loss. In general, amount realized is the cash and fair market value of property or services received, reduced by qualifying transaction costs allocable to the disposition. Make the calculation in U.S. dollars.
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For a cash purchase, basis generally includes the cash paid for the digital assets plus cash transaction-service costs paid to effect the purchase. Basis may require adjustments where applicable, so retain the records that show how you arrived at it rather than relying only on a portfolio balance.
A simple sale example
Suppose an investor bought a digital asset for $2,000 and paid a $20 cash transaction fee to make the purchase. If the investor later sells it for $3,000 and pays $30 in qualifying costs allocable to the sale, the illustrative basis is $2,020 and the amount realized is $2,970. The resulting gain is $950: $2,970 minus $2,020. This example assumes the stated fees qualify and that there are no other basis adjustments.
Crypto-to-crypto exchanges and spending
A swap is not automatically tax-free because no dollars changed hands. If you exchange one digital asset for other property, including a different digital asset, the transaction can be a disposition. The fair market value of what you receive generally contributes to amount realized, with applicable disposition costs taken into account. Similarly, paying for a service with crypto can produce a gain or loss measured against the value of the service received, reduced by qualifying costs. Record the U.S.-dollar values and the time of each side of the transaction so the calculation can be substantiated.
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Separate purchase costs from transfer costs
Costs to effect a purchase or disposition may be relevant to basis or amount realized. A fee paid solely to move assets between your own wallets is different: IRS guidance distinguishes it from a transaction cost of buying, selling, or disposing of an asset. Record the fee and what it paid for; do not automatically add every network fee to basis or subtract every fee from proceeds.
Why the holding period matters
For a capital asset, a gain or loss is short-term if you held the asset for one year or less, and long-term if you held it for more than one year. IRS guidance says the holding period begins the day after acquisition and ends on the date of sale or exchange. The relevant dates should be traceable to the specific units or lot disposed of, not just to the date you first opened an account or bought that asset type.
This classification affects how a capital transaction is reported, but this article does not assign a tax rate: the applicable result depends on current law and the taxpayer’s circumstances. Keep acquisition and disposition timestamps, especially when transactions occur near the one-year boundary.
Track the units or lots you dispose of
If you own multiple units of the same asset acquired at different times or prices, you need records connecting a disposition to the relevant units and basis. The IRS’s specific-identification requirements differ between assets held in an unhosted wallet and assets held in a broker-custodied account. For transactions after 2025, identification through a custodial broker must use identifiers designated by that broker, and the taxpayer must retain adequate substantiation. Consult the current IRS FAQ and the broker’s procedures for the transaction year.
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Records to keep for each transaction
The IRS requires records sufficient to establish the positions taken on a federal income tax return. Its guidance identifies transaction details such as asset type, date and time, number of units, fair market value in U.S. dollars, and basis. A practical file should let you trace an asset from acquisition or receipt through any transfer to its eventual disposition.
- Asset and quantity: name or type of digital asset and the number of units acquired, received, transferred, or disposed of.
- Dates and times: acquisition or receipt and disposition timestamps, using a consistent time zone where your records permit.
- Accounts and transaction references: wallet, account, or broker involved, plus transaction identifiers and confirmations.
- Dollar values: fair market value in U.S. dollars at acquisition or receipt and at disposition, as relevant.
- Basis and its support: purchase amount, purchase-related costs, applicable adjustments, and how the basis was determined.
- Proceeds or value received: cash proceeds, fair market value of other property, or value of services received.
- Fees: amount, currency, and purpose of each cost, including whether it relates to a purchase, disposition, or own-wallet transfer.
- Source records: exchange statements, wallet exports, receipts, confirmations, and contemporaneous evidence supporting unit identification.
- Own-wallet transfers: evidence that the sending and receiving wallets or accounts belong to the same taxpayer, along with transfer and fee details.
- Tax forms and corrections: Forms 1099-DA and correspondence with a broker about missing or corrected information.
This is a practical checklist, not an IRS-prescribed universal file format. A broker statement can be useful evidence but may not establish your basis, particularly if the asset was acquired elsewhere or transferred into the account. Preserve source records that connect the reported proceeds to your own acquisition and transfer history.
How Form 1099-DA fits into your tax reporting
The Form 1099-DA rollout is phased. IRS guidance says brokers report gross proceeds for covered transactions effected on or after January 1, 2025, and basis for certain transactions effected on or after January 1, 2026. The IRS Tax Tip dated January 28, 2026 says most 2025 Forms 1099-DA will not include basis, so taxpayers will need to calculate it. Forms generally apply to U.S. brokers for 2025; foreign-broker activity may not produce one.
A 1099-DA is a broker information report, not a substitute for your own records or a complete determination of taxable income. Reconcile its proceeds and other details against your transaction history, investigate errors or missing information, and calculate basis before filing. A taxable transaction still needs to be reported even if no form arrives.
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Where capital transactions and income are reported
Individuals generally report capital sales and other capital transactions on Form 8949 and summarize capital gains and deductible capital losses on Schedule D. The IRS describes a case in which a broker’s Form 1099-DA provides both gross proceeds and basis; the applicable reporting treatment can differ in that situation, so follow the current form instructions for the filing year.
Digital assets received as ordinary income may be reported on Form 1040 or Schedule 1 when applicable. The correct form can depend on the facts and taxpayer status. Keep capital dispositions separate from income events in your records so each can be reported under the appropriate rules.
A practical workflow before filing
- Gather source data. Export statements and transaction histories from each exchange, broker, and wallet. Save receipts, confirmations, and relevant 1099-DA forms.
- Reconcile transfers. Match outgoing and incoming transactions between accounts you own. Preserve evidence of ownership and identify any fee or asset used to pay for transaction services.
- Classify each event. Mark sales, swaps, spending, receipts for services, and other income-related events separately. Do not treat a broker’s reporting categories as a definitive tax classification.
- Determine basis and lot identification. Link each disposed unit to its acquisition or receipt record, apply the applicable identification procedure, and retain the required substantiation.
- Calculate in U.S. dollars. Determine basis, gross value received, and qualifying costs for each disposition. Keep the calculation and the source records together.
- Check holding periods and reporting forms. Determine short- or long-term status from the relevant dates, then use the current IRS forms and instructions for the filing year.
- Reconcile broker forms. Compare reported proceeds and any basis with your own records, address discrepancies, and report taxable activity even where a form is absent.
Where the general rules stop
These explanations concern U.S. federal income tax for individual investors. They do not establish state or non-U.S. treatment, and they do not resolve every staking, lending, liquidity-pool, airdrop, or DeFi fact pattern. IRS digital-asset guidance and tax forms can change; use the instructions and guidance applicable to the transaction and filing year. For complex activity, incomplete basis histories, or mixed capital and ordinary-income events, a tax professional familiar with digital-asset records may help evaluate the specific facts.
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