Binance.US Tax Reporting After the Wind-Down: Exporting Data Before It's Gone

Binance.US is the exchange users wish they had exported. After the June 2023 SEC suit and the subsequent operational unraveling — fiat rails suspended, product withdrawals, trading volume collapse — many U.S. users still had active accounts into 2024 and the tail end of 2025. If you were one of those users and you have open 2022, 2023, 2024, or 2025 tax positions from Binance.US activity, this is the article on how to pull your data, reconcile against what the IRS already has, and file clean before the platform disappears for good.

What Binance.US Issued Historically

Binance.US has a specific 1099 history that differs from most U.S. exchanges:

• Form 1099-MISC — issued for staking rewards, referral bonuses, and other reward-type income of $600 or more per year. This was the main form for most retail users.
• Form 1099-K — Binance.US historically did not issue 1099-K to most customers. Gross trade volume was not reported under the old §6050W path the way it was for some competitors.
• Form 1099-B — not issued by Binance.US for most users. This is the core problem. Until 1099-DA, Binance.US left retail users to self-report all trade-by-trade gain and loss.
• Form 1099-DA — required for 2025 transactions under IRC §6045, assuming the platform remains operational long enough to issue them. If Binance.US fully wound down before the January 2026 filing deadline, the obligation runs to the entity that acquires the customer data — or to the trustee in a regulatory or bankruptcy wind-down.

For the 2022 and 2023 years especially, many Binance.US users have untreated short-term trading activity sitting unreported because no 1099-B was ever issued. The IRS still knows about it — a John Doe summons and the 2023 settlement agreements with the SEC produced customer data that the IRS can request.

The API Tax Report Tool

Binance.US historically provided a built-in tax tool and an API that could be connected to crypto tax software. Both paths are at risk as the wind-down progresses. The practical reality right now:

1. The Binance.US web app has a Tax Center. Generates CSVs of trade history, deposit/withdrawal records, and staking rewards. Export the full available history. Do not assume you can come back for more data later.
2. The Binance.US API lets tax tools (Koinly, CoinTracker, TokenTax) sync. Connect now and pull the full history while credentials still work.
3. Manual CSV download is the backup. Always keep the CSVs. API connections break when platforms shut down; CSV files live on your hard drive.

If you no longer have access to your Binance.US account — password lost, 2FA device gone, support unreachable — you can still request records through the platform's designated successor entity or, failing that, reconstruct from the other side of every transaction (your bank records, your self-custody wallet receipts, blockchain explorers).

Post Wind-Down: What Happens to Your Tax Data

When a U.S. crypto exchange shuts down, the customer transaction data typically follows one of three paths:

• Asset purchase of the customer book. Another exchange buys the list and inherits the data. Historically this has happened cleanly in some cases and messily in others.
• Bankruptcy estate. If the wind-down goes through Chapter 11, the estate holds the records and can respond to IRS summonses but is slow to respond to customers.
• Regulatory holding. The SEC, CFTC, DOJ, or state regulators may receive customer records as part of an enforcement resolution. IRS requests to those agencies get answered on agency timelines, not yours.

In all three paths, the IRS will have or can get your data. The only question is timing and whether your return matches. The worst position to be in is an unreported Binance.US year where the IRS later receives the data through interagency cooperation and the AUR system produces a several-year-old deficiency assessment with penalties and interest compounded.

Pre-2024 Activity: The Six-Year Window Matters

Under IRC §6501, the IRS generally has three years to audit a return. That window extends to six years if gross income was understated by more than 25%. For unfiled years, there is no statute of limitations. For fraudulent returns, also no statute.

For Binance.US users who did not report trading activity in 2020–2023, a 25% gross-income understatement is easy to hit — especially in 2021 during the bull market. The practical implication: Binance.US returns from 2020 or 2021 may still be open for IRS audit through 2027 or later. Don't count on the clock unless you filed and reported clearly.

Worked Example: Reconstructing a 2022 Binance.US Year

Client traded heavily on Binance.US in 2022. Never received a 1099-B. Reported only $900 of staking income from a 1099-MISC on his 2022 return. The IRS sent a CP2000 in late 2024 proposing $47,000 of additional tax and $11,800 of penalties plus interest, based on data indicating $340,000 of gross proceeds on the Binance.US platform.

Reconstruction:

1. Client logged into Binance.US (still operational at time) and downloaded full 2022 trade CSV and deposit/withdrawal CSV.
2. Ran the CSVs through Koinly with historical FMV data.
3. Actual 2022 net realized gain: $86,000 of short-term, not the $340,000 the IRS inferred as gain when it had only gross proceeds.
4. Filed amended return 1040-X with Schedule D showing $86,000 of gain. Response to CP2000 accepted the recalculation.

Client paid roughly $21,000 of tax and assessed penalties rather than the $58,800 the IRS first proposed. The $37,000 savings came from two moves: getting the CSV before the platform wound down, and responding to the CP2000 with real numbers rather than ignoring it.

What to Do Right Now if You Have Binance.US Activity

1. Log in today. Change password, ensure 2FA works, update the email on the account.
2. Export every CSV available. Trades, deposits, withdrawals, staking, conversions. Download full account history, not just the current year.
3. Save the CSVs in at least two places. Cloud storage and a local drive.
4. If any year is unreported, start reconstructing. Run the CSVs through Koinly or CoinTracker. Compute realized gain and loss.
5. File or amend. For unfiled years, file. For filed-but-wrong years, amend on Form 1040-X — before the IRS notices.
6. If the numbers are big, engage counsel before filing. Voluntary disclosure considerations apply where the numbers are large and there are badges of fraud.

The 1099-DA Transition Complication

If Binance.US issues a 1099-DA for 2025 activity, it will report gross proceeds. Basis information is phased in for 2026 transactions under §6045A. For 2025 returns, the 1099-DA will show proceeds only — and many users will have to supply basis themselves. See Form 8949 for crypto on Box B/E selection for proceeds-only situations.

If Binance.US shuts down before issuing 1099-DA, the reporting obligation does not disappear — it moves to the successor or trustee. The IRS will still receive data eventually. Plan as if the form is coming.

State Tax Implications

Binance.US operated under state money-transmitter licenses that started being pulled in 2023–2024. If you were in a state where the license was pulled mid-year, your account may have been restricted earlier than the national wind-down. The tax activity still reports to your state of residence regardless of where the exchange was licensed. Make sure your state return captures the full year's activity.

Common Mistakes

• Assuming no 1099-B = no taxable income. Binance.US did not send 1099-B to most users. The income is still taxable.
• Not exporting CSVs before wind-down completes. Post-shutdown data recovery is slow and expensive.
• Ignoring old unreported years. Six-year §6501 window is long, and unfiled years have no statute.
• Filing a CP2000 response without reconstruction. The IRS default position is gross proceeds = gain. Reconstruction almost always reduces the number.

Related Reading

For what happens when the IRS collects customer data at scale, IRS John Doe summons. For other exchange walkthroughs, Crypto.com tax reporting, Robinhood crypto, PayPal crypto. For the form where everything lands, Form 8949 for crypto. For resolving a resulting tax balance, Crypto Offer in Compromise.