Crypto Tax USA 2026: complete IRS Form 8949 and 1040 guide

US crypto investors pay short-term capital gains at ordinary income rates up to 37% and long-term rates of 0%, 15% or 20% on disposals of digital assets held more than one year. Staking and mining rewards are ordinary income at receipt. The 2025 return is due April 15, 2026, with an automatic extension available to October 15, 2026. This guide walks through every line of Form 1040, Form 8949 and Schedule D.

Is crypto taxed in the US in 2026?

The framework has been in place since IRS Notice 2014-21, which classified virtual currency as property. Subsequent guidance, including Revenue Ruling 2019-24 (hard forks), Revenue Ruling 2023-14 (staking) and the 2024 broker reporting regulations, has built out the rules without changing the core principle. Whether you trade on Coinbase, hold a Trezor, or earn yield through DeFi, the same statute applies.

For the cross-border view, see our companion piece on how to report crypto on taxes, which covers the same logic at a higher level.

Two ideas anchor everything that follows. First, every disposal of a digital asset is a taxable event measured in dollars at fair market value. Second, every receipt of a new token (other than from a purchase you already paid for) is potentially ordinary income. Once you internalize these two principles, the rest is mechanics: applying the right cost basis method, filling out Form 8949, and answering the digital asset question truthfully.

State tax adds a second layer. A handful of states (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington and Wyoming) have no broad-based income tax, while California taxes all gains as ordinary income. Most states key off federal AGI, so federal positions flow through. This guide focuses on federal tax; check your state department of revenue for any state-specific quirks.

When do you owe crypto tax?

Two parallel tax systems apply. Capital gains tax kicks in when you dispose of a digital asset. Ordinary income tax kicks in when you receive new tokens that you did not pay for.

The capital gains events are:

1. Selling crypto for fiat. Selling BTC for USD is a disposal at the USD received.
2. Swapping one crypto for another. Trading 1 BTC for 15 ETH is a disposal of the BTC at its USD market value at the moment of the trade. The same value becomes the basis of the new ETH.
3. Spending crypto on goods or services. Buying a laptop with Bitcoin is a disposal at the USD price of the laptop.
4. Gifting above the annual exclusion. Gifts up to $19,000 per recipient in 2025 are exempt. Above that, you may have a gift tax filing obligation, although the recipient takes a carryover basis.

The ordinary income events are:

• Mining rewards (income at fair market value when received, plus self-employment tax if conducted as a trade or business)
• Staking rewards (income at fair market value when you gain dominion and control)
• Airdrops (income at fair market value when received and constructively received)
• Hard fork coins (income at fair market value when you can transact)
• Salary or freelance fees paid in crypto
• Interest paid on crypto deposits or lending

Cost basis: FIFO and Specific ID

The IRS allows two cost basis methods for digital assets in 2026: First In First Out (FIFO), which is the default, and Specific Identification, which requires you to identify the exact units sold at the time of sale and keep records that prove it.

Specific ID typically reduces tax in a rising market because you can choose to dispose of the highest-cost lots first (HIFO is a Specific ID strategy). The catch is documentation. The IRS expects, for each disposal, the date and time acquired, the basis, the date and time sold, the proceeds, and a way to tie the disposed unit to the specific original acquisition. Crypto tax software handles this automatically; spreadsheets struggle.

Beginning January 1, 2025, the IRS requires per-wallet (or per-account) cost basis tracking under Revenue Procedure 2024-28. You can no longer pool an asset across all venues. Each wallet or exchange has its own cost basis pool, which makes Specific ID slightly more rigid but does not change the underlying methods.

Worked example. You bought 1 BTC for $30,000 in March 2024 and another 1 BTC for $50,000 in November 2024 in the same exchange account. In June 2025 you sell 0.5 BTC for $40,000. Under FIFO you dispose of the older lot first: cost basis 0.5 × $30,000 = $15,000, gain $25,000, holding period more than one year (long-term). Under Specific ID you can instead identify the November lot: cost basis 0.5 × $50,000 = $25,000, gain $15,000, but holding period less than one year (short-term, taxed at ordinary rates). The right choice depends on your marginal rate.

Revenue Procedure 2024-28 also offers a one-time safe harbor for taxpayers with pre-2025 unidentified lots. You could allocate aggregate basis to specific wallets either by global allocation or by a specific identification method, with the choice documented in writing before January 1, 2025. If you missed that window, your software provider has likely defaulted you into a per-wallet FIFO position based on best available data, which the IRS will accept if applied consistently.

Holding periods matter. The clock starts the day after acquisition and ends on the day of disposal. Selling exactly 365 days after purchase is still short-term; you need at least one year and one day. The difference between short-term (taxed up to 37%) and long-term (capped at 20%) is often the largest variable in your tax bill, and Specific ID lets you preserve favorable holding periods deliberately.

How to report on Form 1040

Reporting crypto involves three federal forms in most cases. State returns vary, but almost every state with an income tax conforms to the federal classification of digital assets as property.

• Form 1040. Answer the digital asset question at the top. Total income flows in from the supporting schedules.
• Form 8949. Every capital gains disposal is listed individually, grouped into short-term (Part I) and long-term (Part II), and subgrouped by whether basis was reported to the IRS on a 1099 (Box A or D), not reported (Box B or E), or received without a 1099 (Box C or F).
• Schedule D. Aggregates the totals from Form 8949 and computes net short-term and long-term capital gain or loss.
• Schedule 1. Other income, including staking, mining, airdrops, hard forks, and most interest paid in crypto.
• Schedule C. Required if your mining or trading rises to the level of a trade or business. Self-employment tax of 15.3% applies on net profit up to the Social Security wage base.
• Form 8938 and FBAR (FinCEN 114), potentially, if you held crypto on foreign exchanges with substantial balances. Reporting thresholds and rules are evolving, and IRS guidance for 2026 confirms FBAR applies to certain offshore custodial accounts.

The reporting workflow looks like this:

1. Pull a complete transaction history from every exchange, wallet and protocol you used during the calendar year.
2. Reconcile against any Form 1099-DA or 1099-MISC you received. Mismatches trigger IRS notices.
3. Apply FIFO or Specific ID per wallet to compute basis on each disposal.
4. Populate Form 8949 with one line per disposal, separated into short-term and long-term.
5. Roll the totals to Schedule D.
6. Report ordinary income (staking, mining, airdrops) on Schedule 1, line 8.
7. Answer the digital asset question on Form 1040 truthfully.
8. File and pay by April 15, 2026, or file Form 4868 for an extension to October 15.

2026 rates and brackets

Federal capital gains rates for the 2025 tax year (filed in 2026) are summarized below. State tax is on top of these and varies widely. California, for example, taxes all capital gains as ordinary income at rates up to 13.3%.

Short-term gains are taxed at ordinary income rates: 10%, 12%, 22%, 24%, 32%, 35% and 37%. The Net Investment Income Tax of 3.8% can also apply on top, for taxpayers with modified adjusted gross income above $200,000 (single) or $250,000 (married filing jointly).

Key 2026 deadlines:

• April 15, 2026: file Form 1040 and pay any balance due for tax year 2025
• April 15, 2026: file Form 4868 for an automatic 6-month filing extension
• October 15, 2026: extended filing deadline
• Quarterly estimated tax due dates: April 15, June 16, September 15, January 15

DeFi, staking and NFTs

The IRS has issued limited specific guidance on DeFi. Existing principles apply, and most practitioners follow a few default positions until further guidance arrives.

Staking. Revenue Ruling 2023-14 confirmed that proof-of-stake rewards are ordinary income at fair market value when you gain dominion and control. That value becomes your basis. A subsequent disposal triggers capital gain or loss measured against that basis.

Liquidity provision. Most practitioners treat the deposit of tokens into a liquidity pool as a taxable exchange of the deposited assets for the LP token, with a reverse exchange on withdrawal. The IRS has not formally ruled, and aggressive positions exist, but the conservative approach is taxable.

Lending. Lending crypto on platforms like Aave or Compound usually produces a wrapped token (cToken or aToken) representing your deposit. Whether the deposit is a disposal depends on whether ownership transferred. Interest received is ordinary income.

Airdrops. Per Revenue Ruling 2019-24, airdrops are ordinary income at fair market value when you can transfer, sell or exchange the new tokens.

NFTs. NFTs are digital assets. Disposals are capital gains events. The IRS issued Notice 2023-27 proposing to treat certain NFTs as collectibles, which would subject long-term gains to a 28% maximum rate. The notice has not been finalized, so most NFTs in 2026 still follow the standard 0/15/20% long-term rates, but watch this area.

Mining. Mining rewards are ordinary income at fair market value when received. If your mining is a trade or business, net profit is also subject to self-employment tax, and you can deduct equipment, electricity and other ordinary business expenses.

Reporting losses (no wash sale)

Capital losses on crypto offset capital gains dollar for dollar. If your net result is a loss, you can deduct up to $3,000 against ordinary income each year ($1,500 if married filing separately) and carry the rest forward indefinitely.

The most powerful US-specific advantage in 2026 remains the absence of a wash sale rule for crypto. Section 1091 only applies to securities. You can sell ETH at a loss on December 30, claim the loss for the year, buy the ETH back on December 31, and keep your position. The basis of the repurchased ETH is the new purchase price. Tax-loss harvesting is meaningfully easier in crypto than in stocks for this reason.

Worthless tokens (rugged projects, dead chains) generally produce a capital loss only when there is a closed and completed transaction. Abandoning a token by sending it to a burn address is one way to crystallize the loss; documentation is critical.

Theft and fraud losses (hacks, phishing) are not deductible as casualty losses for individuals between 2018 and 2025 under the Tax Cuts and Jobs Act, except for federally declared disasters. The TCJA provisions are scheduled to sunset for tax years beginning after December 31, 2025, but as of May 2026 Congress has not finalized the extension or reform package, so position carefully.

For a deeper treatment, see our guide on crypto losses and tax.

Common pitfalls

Software that does the math

Manually maintaining FIFO or Specific ID across hundreds of trades is a job for software, not spreadsheets. The major platforms all import from US exchanges, apply the IRS rules, and generate Form 8949 directly.

Koinlycovers the US comprehensively. It supports FIFO, LIFO, HIFO and per-wallet tracking, generates Form 8949 in PDF or CSV, and integrates with TurboTax, TaxAct and H&R Block. Paid plans start around $49.

Coinpanda is a solid alternative with broad DeFi coverage and a free tier up to 25 transactions. Its US tax exports work cleanly with the major filing services.

CoinLedger is a US-first product, formerly known as CryptoTrader.Tax. It has the tightest TurboTax integration, an intuitive workflow designed around Form 8949, and strong support for US-specific edge cases. For US filers it is often the fastest path from raw transactions to a finished return.

Whatever you choose, start the reconciliation early. Pulling missing API data, matching 1099-DA totals and resolving DeFi edge cases takes more time than expected, and the April 15 deadline arrives quickly.

A practical timeline: import all wallets and exchanges in late January as soon as annual data is available, reconcile against any 1099-DA forms received by February 1, finalize basis decisions by mid-March, and file by April 15. Filers expecting a refund have less pressure on the deadline; filers with a balance due should pay an estimate by April 15 even if they extend the filing, because the extension covers the return, not the tax.

For active traders and high earners, consider quarterly estimated tax payments. The IRS expects you to pay tax as you earn, not just in April. Underpayment penalties apply if your withholding plus estimated payments fall below the safe harbor (90% of the current year liability or 100% of the prior year, 110% for AGI over $150,000). Big crypto gains in Q1 or Q2 should be matched with a Q2 or Q3 estimated payment to avoid penalty.