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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsFor U.S. federal income tax purposes, the IRS treats digital assets as property. Selling crypto for dollars, swapping it for another asset, or spending it on goods or services can therefore create a taxable gain or loss. The calculation compares your adjusted basis with the value you received, after applicable transaction costs.
Good records let you establish that calculation, identify which units you disposed of, and distinguish taxable transactions from transfers between your own accounts. Form 1099-DA reporting does not replace your responsibility to report taxable activity or determine your basis.
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What counts as a taxable crypto disposition?
The IRS applies general property-tax principles to digital assets. When you dispose of an asset held as a capital asset, compare its adjusted basis with the amount realized. If the amount realized is higher, you generally have a capital gain; if it is lower, you generally have a capital loss. The IRS states this property treatment in FAQ A48. The result depends on the transaction and your facts, not simply on whether a broker reports it.
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| Event | Typical federal tax treatment | What value or record matters |
|---|---|---|
| Sell crypto for U.S. dollars | A disposition that may create capital gain or loss if the asset is a capital asset. | Dollar proceeds, adjusted basis, and qualifying costs of the sale. |
| Exchange crypto for another digital asset or other property | Can be a taxable disposition. A crypto-to-crypto swap is not automatically tax-free. | Fair market value of what you receive, basis in the asset you give up, and allocable disposition costs. |
| Use crypto to buy goods or services | Can be a disposition even though you did not convert the asset to dollars. | Value of the goods or services received, basis in the crypto spent, and qualifying costs. |
| Move crypto between accounts or wallets you own | Generally not a taxable disposition by itself. | Evidence that both accounts belong to you, plus records of any fee or asset withheld to pay for the transfer service. |
| Receive crypto for services | Generally ordinary income at fair market value when received; the included value generally becomes basis. | Receipt date and time, quantity, U.S.-dollar value, and records of the service or payment. |
| Receive new assets after a hard fork | Ordinary income may arise when you have dominion and control of the new assets. A fork without receipt or control does not, by itself, create that income under the IRS FAQ. | Whether and when you could control the new assets and their fair market value at receipt. |
This table describes general federal treatment, not a ruling on every arrangement. Staking, lending, airdrops, liquidity pools, and other DeFi activity can have transaction-specific facts. A broker-reporting exception for an activity category does not establish that the taxpayer has no income or gain.
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How to calculate gain or loss
Start with adjusted basis
Basis is generally your cost in the asset, stated in U.S. dollars and adjusted as applicable. For a cash purchase, IRS FAQ Q56 says basis includes the cash paid for the digital assets and cash transaction-service costs paid to effect the purchase. Preserve the evidence showing how the basis was calculated and which units or lot it belongs to.
Determine amount realized
For a sale, amount realized generally includes cash received and the fair market value of any property or services received, less transaction costs allocable to that disposition. The IRS identifies transaction or gas fees, transfer taxes, and commissions as possible qualifying costs. The key is whether the cost relates to the purchase or disposition, rather than merely moving assets between your own wallets.
For an exchange, use the fair market value of the property received, together with any relevant service value, and account for allocable disposition costs. For crypto used to pay for a service, the value of the service received is relevant. Keep a contemporaneous record of the dollar value and how you determined it; a transaction hash alone may not establish that value.
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Compare the figures in U.S. dollars
The basic calculation is: gain or loss = amount realized − adjusted basis. Convert and record transaction values in U.S. dollars for the relevant dates. Keep fees distinct from gross proceeds so you can show both the transaction amount and the calculation used to arrive at the net amount realized. The exact treatment of a particular fee depends on its connection to the transaction.
Example: You acquired a capital-asset lot for $1,000, including qualifying purchase costs. You later sell that lot for $1,400 and pay $20 in qualifying disposition costs. The amount realized is $1,380, so the gain is $380 before considering any other basis adjustments or facts. The example illustrates the arithmetic; it is not a tax-rate estimate.
Holding period and identifying the units sold
For a capital asset, a holding period of one year or less produces a short-term gain or loss; a period of more than one year produces a long-term gain or loss. IRS guidance says the period starts the day after acquisition and ends on the date of sale or exchange. Record the acquisition and disposition dates rather than relying on an approximate month or year. The applicable tax result is not determined by holding period alone, and no single rate applies to every investor.
If you own multiple units of the same asset and dispose of only some, your records need to connect the disposed units to their acquisition dates and basis. IRS FAQ requirements for specific identification differ depending on whether the assets are in an unhosted wallet or held through a broker. For transactions after 2025, identification through a custodial broker must use identifiers designated by that broker, and taxpayers must retain adequate substantiation. Where applicable specific-identification requirements are not met, the IRS describes a default based on earliest acquisition.
Do not assume one lot-selection method applies universally to every wallet, broker, or tax year. Keep timely lot-level records and check the current IRS FAQ and the custodian’s procedures for the year of the transaction. A broker statement may report a transaction without establishing the basis you need for your return.
Records to keep for each transaction
The IRS requires records sufficient to establish positions taken on federal income tax returns; FAQ A95 states this requirement. The IRS does not prescribe a universal ledger format. The following checklist translates its recordkeeping and calculation guidance into information an investor can use to substantiate transactions:
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- Asset and quantity: the digital-asset name or type and the number of units acquired, received, transferred, or disposed of.
- Dates and times: acquisition or receipt date and time, and disposition date and time. Keep the relevant time zone or timestamp format if your export provides it.
- Accounts and identifiers: wallet, exchange, or broker involved; transaction IDs or hashes; confirmations; and account statements.
- Dollar values: fair market value in U.S. dollars when relevant to acquisition, receipt, exchange, sale, or spending.
- Basis and method: cost, adjustments, purchase costs, and the records showing how basis was assigned to the units disposed of.
- Proceeds or value received: gross cash proceeds or the value of property or services received, with the calculation of amount realized.
- Fees: amount, currency, and purpose of each fee. Distinguish a purchase or disposition cost from a fee paid solely to move assets between your own accounts.
- Receipts and income events: records of crypto received for services, hard-fork assets, and other receipts, including the date you obtained control where relevant.
- Transfers: source and destination details that show a transfer was between accounts you own, and any assets withheld or charged for the transfer service.
- Tax forms and corrections: Forms 1099-DA, exchange reports, and correspondence about missing or corrected information.
Retain exchange statements, wallet exports, trade confirmations, and contemporaneous valuation records in a form you can retrieve later. If you use a spreadsheet or ledger, preserve the underlying source data as well: a summary that cannot be traced back to transactions may not substantiate the numbers. A broker form is one piece of evidence, not necessarily a complete record of basis or every wallet activity.
How to build a defensible transaction trail
- Collect records from every venue and wallet. Export broker and exchange histories, download statements and confirmations, and preserve wallet transaction data. Include accounts you no longer actively use if they contain activity relevant to the tax year.
- Reconcile acquisitions, receipts, transfers, and dispositions. Match outgoing transfers to incoming transfers when both accounts are yours. Document ownership of both sides so a self-transfer is not mistaken for a sale, and keep the fee record because a transfer service may involve a separate charge or withheld asset.
- Assign a dollar value and basis to each lot. Record the acquisition or receipt date, unit quantity, U.S.-dollar value, and purchase costs. For assets received as income, preserve the value included in income because it generally informs the later basis.
- Match each disposition to units and costs. Save the broker’s lot identifiers or other contemporaneous specific-identification records, as applicable. Track gross proceeds or value received separately from qualifying disposition costs.
- Compare your records with Form 1099-DA. Investigate omissions, mismatches, and basis fields that are absent or inconsistent. Keep corrections and correspondence together with the source records.
- Keep the calculation and supporting documents. Organize the records so each amount reported can be traced to a transaction, a valuation, a basis assignment, and any fee adjustment. Follow the record-retention rules applicable to your circumstances.
Form 1099-DA: what it reports and what it does not
The Form 1099-DA rollout is phased. According to IRS guidance, 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 published January 28, 2026 says most Forms 1099-DA for 2025 will not include basis. A taxpayer filing for 2025 may therefore need to calculate basis from their own acquisition and lot records.
The form concerns broker reporting; it does not decide whether an event is taxable or relieve you of the duty to report taxable transactions. IRS guidance says individuals generally report capital sales and other capital transactions on Form 8949 and summarize them on Schedule D. The IRS describes a case in which a broker’s Form 1099-DA provides both gross proceeds and basis information. The applicable reporting path depends on the information provided and current form instructions.
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Non-business ordinary income may be reportable on Form 1040 or Schedule 1, depending on the facts and taxpayer status. Crypto received for services, for example, is not simply a capital sale at receipt. Check the current IRS forms and instructions for the tax year rather than assuming every digital-asset event belongs on Form 8949.
Forms generally apply to U.S. brokers for covered 2025 activity; a foreign broker may not issue a Form 1099-DA. Not receiving one does not make an otherwise taxable transaction disappear. Report taxable activity based on your own records and applicable rules.
Common errors and how to avoid them
- Treating only cash-outs as taxable: swaps and spending crypto can be dispositions too. Review every exchange and payment, not just transfers into a bank account.
- Assuming a wallet transfer is a sale: a transfer between accounts you own is generally not itself taxable. Preserve records linking both accounts and account for any separate service fee.
- Using gross proceeds as the gain: proceeds are not profit. Calculate basis and applicable transaction costs for each disposition.
- Relying on a 1099-DA as a complete tax calculation: reporting may omit basis, and broker information may not cover every wallet or venue. Reconcile it against your own records.
- Applying one lot method to all activity: specific-identification rules vary by custody arrangement and year. Use the identifiers and substantiation required for the transaction rather than assuming a universal FIFO rule.
- Calling every receipt a capital gain: crypto received for services and some hard-fork receipts may be ordinary income when received. Track income events separately from later dispositions.
- Assuming a DeFi reporting exception means no tax: broker reporting categories and taxpayer tax treatment are separate questions. Evaluate the actual transaction under current, transaction-specific guidance.
Scope and filing-year check
This explanation concerns U.S. federal income tax for individual investors and reflects IRS guidance checked October 10, 2026, including guidance generally applicable to transactions on or after January 1, 2025. It does not determine state, foreign, entity, or individual tax treatment. Tax forms, instructions, and digital-asset guidance can change, so use the IRS materials and forms for the filing year involved. Investors with many lots, incomplete basis records, or both ordinary-income and capital transactions may need individualized tax assistance.
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