Does Coinbase Report to the IRS? More Than You Think

If you've been assuming your Coinbase activity flies under the radar, that assumption is now officially expired. We know the IRS can track crypto, but as a Coinbase user, just exactly what does the IRS have on you?

Does Coinbase Report to the IRS?

• Yes. Coinbase reports to the IRS via Form 1099-DA for crypto sales, Form 1099-MISC for staking and referral income over $600, and Form 1099-B for Coinbase Derivatives Exchange activity
• For tax year 2025, Coinbase reports gross proceeds only. Cost basis reporting begins with 2026 transactions
• If you transferred crypto into Coinbase from another wallet or exchange, your 1099-DA may show no cost basis. The IRS sees the same incomplete form
• A mismatch between your Coinbase 1099-DA and your filed return increases the risk of a CP2000 notice
• You are legally responsible for reporting accurate gains and losses regardless of what your 1099-DA shows

What Tax Forms Does Coinbase Send to the IRS?

Depending on your activity, Coinbase may issue up to three forms to both you and the IRS. Let's work down the list from most common to most obscure.

Coinbase Form 1099-DA

‍Form 1099-DA is the form most if not all Coinbase users will receive. Introduced for the 2025 tax year, this form covers broker-tracked digital asset disposals including sales and exchanges of crypto on the platform. Reporting scope can vary based on asset type, transaction classification, and what Coinbase can actually see. For 2025, Coinbase reports gross proceeds only, which is the total value received from disposals before accounting for cost basis or fees. Starting with the 2026 tax year, cost basis reporting is added, bringing crypto broker reporting closer to how traditional securities have been reported, though the rules are not identical.

Coinbase Form 1099-MISC

Form 1099-MISC applies if you earned $600 or more in Coinbase-paid income during the year, including staking rewards, referral bonuses, and similar payments.

Coinbase Form 1099-B

Form 1099-B applies only if you traded through Coinbase's Derivatives Exchange. Most retail users never interact with this venue and will not receive this form.

What Customer Data Does Coinbase Share with theIRS?

Coinbase does not automatically send the IRS your full raw transaction history as part of routine reporting. However, the IRS can and does obtain additional data through legal process, including John Doe summonses, which have been used against major exchanges before. This is not routine, but it is real, and it has happened.

Beyond legal process, Form 1099-DA now creates a direct data pipeline between Coinbase and the IRS. Significant discrepancies between what Coinbase reports and what you file can increase your risk of receiving an IRS notice, including a CP2000. Not every mismatch triggers one, but the IRS does match reported figures against filed returns, and unexplained gaps draw scrutiny.

Does Coinbase Report Cost Basis to the IRS on Form 1099-DA?

This is the question every Coinbase trader should be asking in 2026. The short answer: yes, Coinbase reports cost basis on Form 1099-DA. But only when they have the information. And that qualification matters more than most people realise.

Coinbase can only report cost basis for assets bought and held on their platform. The moment you move assets off-exchange, receive tokens through DeFi, or transfer in from another wallet, that cost basis data disappears from their records. They report what they have. The IRS receives what Coinbase sends. What falls in between is your problem, not theirs. That gap is where most Coinbase traders get into trouble.

Why Are My 1099 Forms From Coinbase Inaccurate?

This is the question I hear most often right now, and the answer comes down to one thing: data visibility.

Coinbase can only report what it knows. If you bought Ethereum on Kraken in 2019, moved it to a cold wallet, then transferred it to Coinbase and sold it in 2025, Coinbase has no record of your original purchase. In that scenario, your 1099-DA is likely to show cost basis as "not reported" rather than a confirmed figure. The burden of establishing your actual cost basis then falls entirely on you.

For traders who have moved assets across wallets and exchanges over the years, that is not a minor inconvenience. It is a material tax risk. And it is happening right now to traders across the country.

What Should I Do If My Coinbase 1099-DA Looks Wrong?

First, download your 1099-DA from Coinbase Taxes as soon as it is available. For the 2025 tax year, Coinbase is required to provide it no later than March 17, 2026.

Second, do not rely on it as your only record. Reconcile it against your actual transaction history across every wallet and exchange you have used. If cost basis shows as not reported, and for many active traders it will, you need your own documentation to establish it correctly.

Third, get your cost basis methodology locked down. The IRS requires consistent application of your chosen accounting method, whether that is FIFO, HIFO, or specific identification. While it is possible to change methods under certain conditions, doing so requires care and documentation. Once you have set your historical method within Coinbase's platform, their system does not allow changes, so confirm carefully before locking it in.

Coinbase Tax Forms in 2026: What to Expect

If you traded on Coinbase in 2025, here is what arrives in your inbox before tax season:

Form 1099-DA is the primary reporting document for digital asset transactions. Coinbase is required to report your disposals, proceeds, and where available, cost basis directly to the IRS. This is not optional and it is not new but the scope of what gets reported expanded significantly in 2026.

Consolidated 1099 may also be issued covering interest, staking rewards, and other income events depending on your account activity.

The critical thing to understand: the form Coinbase sends you and the form they send the IRS are the same. There is no version where the IRS sees less than you do.

Coinbase's Own Executives Say IRS 1099-DA Is Causing Confusion

Form 1099-DA isn't just frustrated traders talking. Coinbase's own leadership said it publicly in March 2026.

Lawrence Zlatkin, Coinbase's VP of Tax, questioned why someone trading $50 should receive a form requiring them to calculate and report gains or losses. His view: that level of reporting "does a disservice to people" and is not what the tax system was designed for.

Ian Unger, Coinbase's tax reporting information director, was equally direct. When investors move shares between traditional brokers, transfer statements and cost basis data follow the asset automatically. Crypto doesn't have that infrastructure yet. His words: "Until we get there, there'll be a lot of confusion."

The 2025 reporting framework is explicitly transitional. Proceeds-only for year one, with cost basis phasing in from 2026. Coinbase acknowledging these limitations doesn't reduce your exposure. The IRS receives the same incomplete form you do. If your return differs from what Coinbase reported, you need your own records to substantiate the difference.

What Coinbase Does NOT Report to the IRS

Back to the Form 1099-DA problem, Coinbase reports to the IRS what happens on Coinbase only. Everything else is invisible to them, which means it lands on you to account for it accurately:

• Assets transferred in from external wallets or other exchanges, where original cost basis is unknown
• DeFi activity: liquidity pools, yield farming, staking on external protocols
• Transactions on other centralised exchanges not connected to your Coinbase account
• NFT activity outside the Coinbase NFT platform
• Cross-chain bridge transactions
• Airdrops and governance token distributions received in external wallets

The IRS does not only look at what Coinbase reports. They cross-reference on-chain data, third-party reporting, and blockchain analytics. What Coinbase misses, the IRS may still find.

How CountDeFi Fixes Coinbase Tax Reporting Problems

At CountDeFi, we're already seeing the fallout from 1099-DA mismatches. Traders come to us with forms showing incomplete proceeds, unreported basis, and no clear picture of what they actually owe. The fear of course is that a weird 1099-DA from Coinbase will trigger a full-blown IRS crypto tax audit.

The CountDeFi team of accountants and data scientists are experts in Coinbase tax reporting. We forensically trace transaction history across wallets, exchanges, and chains to build an accurate, defensible tax position. Because data clarity equals crypto tax accuracy.

If your Coinbase 1099-DA does not look right, do not file around it. Fix it. Contact CountDeFi today for accurate Coinbase tax calculations.