Backup withholding on a crypto sale is an identification problem, not a verdict on your taxes.

The useful answer starts with the sale year and the broker's certification record, then follows any withheld amount to its tax credit.

Check the sale year before the withholding rate

The calendar year of the sale decides more than the rate does. For a digital asset sale effected by a broker in calendar year 2025 or calendar year 2026, the backup withholding obligations under IRC sections 3406 and 3403 are suspended. That suspension is blanket for reportable broker-effected sales, and it reaches reportable cash sales along with reportable digital-asset exchanges.

Worth correcting early: 2026 relief does not depend on a TIN match. We checked Notice 2024-56 against Notice 2025-33 side by side, and the IRS TIN Matching condition sits in the 2027 rules, not in the 2026 suspension.

Read the expiration language of the two notices together and the general mechanism is set to reach ordinary reportable sales in 2027, with the stated exceptions doing real work rather than decorating the rule.

A separate set of sale categories keeps its relief until the IRS issues further guidance.

Sale year or category Broker withholding treatment Account or transaction condition Governing notice
Calendar year 2025 Sections 3406 and 3403 obligations suspended Reportable broker-effected digital asset sale, including reportable cash sales and digital-asset exchanges Notice 2024-56, as modified by Notice 2025-33
Calendar year 2026 Suspended on the same blanket terms Same reportable broker-effected sales; no TIN-match condition attaches to this year Notice 2025-33
Ordinary reportable 2027 sale General mechanism applies, with conditional relief for a preexisting customer Account opened before January 1, 2026 plus a name/TIN match obtained through IRS TIN Matching before the sale, or the separate preexisting foreign-person conditions Notice 2025-33
2027 reportable digital-asset-for-digital-asset sale Amount relief only Immediate liquidation of 24% of the received assets limits the amount payable if that value falls; withholding itself is not switched off Notice 2025-33
Sale whose reportable proceeds are a specified NFT Relief continues until further IRS guidance The reportable proceeds are a specified NFT Notice 2024-56
Qualifying real-property sale Relief continues until further IRS guidance Digital-asset-for-real-property sale effected by a real estate reporting person Notice 2024-56
PDAP sale Relief continues until further IRS guidance PDAP sale effected by a PDAP Notice 2024-56

Table reflects Notice 2024-56 as modified by Notice 2025-33. Later IRS guidance can move these boundaries.

Which account conditions matter in 2027?

An account opened before January 1, 2026 makes you a preexisting customer. It does not, on its own, make a 2027 sale exempt. For a 2027 sale the broker may rely on an uncertified TIN only after it submits your name and TIN through IRS TIN Matching before the sale and receives a match.

No pre-sale match, no reliance.

The foreign-person route runs on its own conditions, and all of them have to hold: the account was established before January 1, 2026, the broker never previously classified you as a U.S. person, and the broker's files carry a non-U.S. residence address.

Where that middle condition fails, the address does not carry the relief by itself. Where the conditions do hold, the broker gets 2027 relief from Form 1099-DA filing and furnishing penalties and from backup withholding.

Token-for-token trades get a narrower kind of help. For a reportable digital-asset-for-digital-asset sale in 2027, immediate liquidation of 24% of the received assets limits the amount payable if that value falls. It caps an amount.

It does not make the sale exempt.

Account red flags: five things to check before you assume relief

  • An older account with no pre-sale TIN match. Check the broker's certification correspondence for any statement that a name/TIN match was obtained before your sale date. Account age alone is only the first condition.
  • A newer account being treated as preexisting. Check the account opening date against January 1, 2026. An account opened in 2026 or later is not a preexisting customer account.
  • A non-U.S. address behind a prior U.S.-person classification. Check how the broker has classified the account in its own files. The address condition and the never-classified-as-U.S.-person condition are separate tests.
  • A 2027 token exchange described as wholly exempt. Check which rule is being cited. Immediate liquidation of 24% of received assets is amount relief on a reportable sale, not a withholding exemption.
  • A reduced payout written off as gone. Check whether an information statement shows federal income tax withheld for that year. That figure has a destination on your return.

What the 24% rate means for a reduced payout

Backup withholding takes 24% of the reportable payment when the rule applies (current figure at the IRS). IRC section 3406(a) sets that percentage.

Your capital-gains rate has nothing to do with it, and no trading fee schedule is involved: this is withholding at source tied to identification conditions on the account, where the broker remits the money instead of paying you in full.

What turns it on, across 2025 through 2027 and subject to the transitional relief above: a required certified TIN the broker does not have, or an IRS notice that the name/TIN combination on the account is incorrect.

Run the arithmetic once so the size of it is concrete. On a $4,000 reportable payment, 24% is $960 withheld and $3,040 paid out. Hold that as a hypothetical.

For a broker-effected sale in calendar year 2026 the suspension applies, so the $960 line does not exist.

Correct the certification with your broker

The corrected certification goes to your broker, not to the IRS (IRS backup withholding guidance).

That is the misfile readers raise most often on this topic: a Form W-9 mailed to a service center where nobody is waiting for it, while the exchange that shortened the payout still has an uncertified account on its books.

Start from the broker's own message. It names the issue, and the response details in that correspondence control what you send. There is no universal exchange screen sequence here, and a screenshot from a different platform is not a map of yours.

Match every identifying line on the request against what you are about to certify. A middle initial that shows on one document and not the other is enough to keep a name/TIN combination from matching. Then complete and certify the corrected W-9 in the form the broker asked for, and return it through the channel the broker requested.

One expectation to reset before you wait on anything: curing a TIN does not by itself produce a corrected information return. A payer does not file a corrected 1099 solely to update a TIN unless the reported dollar amount also changes.

The last step is a bookkeeping habit rather than a rule in the notices, and we keep it as editorial practice. Save the version you submitted along with the record that you submitted it, dated. When an account statement and a form disagree next season, that pair is what settles the question.

Certification checklist

  1. Identify the broker's stated TIN or certification issue, and the calendar year of the sale it affects.
  2. Compare each identifying detail against the certification the broker requested: legal name as it reads on the TIN record, the TIN itself, the address the broker holds.
  3. Complete and certify the corrected Form W-9 in the form requested.
  4. Return it through the broker's requested channel, not to the IRS.
  5. Retain the submitted version and the submission record, with its date.

Claim withheld tax on the relevant return

A reduced payout is not a lost payout. Backup withholding shown on a Form 1099-series statement is federal income tax withheld, and it is credited on your own return for the year you received the income (IRS Tax Topic 307). Same slot as wage withholding, different origin.

The ordinary version looks like this.

The payout arrives short, the broker later furnishes a statement showing an amount of federal income tax withheld, and that amount goes onto the return for that year, where it reduces tax owed or increases a refund.

What it will not do is come back as a separate repayment from the broker, on any particular date or in any particular amount.

Keep two documents together for that year: the information statement showing the withheld tax, and the account payout record showing what actually landed. When those two do not reconcile, that is a question for the broker before the return goes in.

Stopping the withholding and crediting what was already taken are separate jobs. The corrected certification fixes the next sale. The credit handles the one that already happened.

Relief does not cancel your tax or reporting duties

Relief in these notices runs to brokers, on their withholding obligations and liability. It is not an exemption from your income tax on the sale, and it is not an exemption from Form 1099-DA reporting. A 2026 sale that arrives with the full proceeds is still a disposal with a gain or a loss.

The governing pieces, in one place: IRC sections 3406 and 3403 together with Treasury's section 6045 digital asset broker-reporting regulations set the withholding duty on reportable broker sales, and Notice 2024-56 as modified by Notice 2025-33 supplies the transitional exceptions and the 2027 conditions.

Notice 2025-33 is effective for digital asset sales on or after January 1, 2025.

The scope point that trips people up: a transaction outside section 6045 broker reporting is outside this relief altogether. It is not a sale on which you claim relief. The relief has nothing to say about it, because there is no broker reporting duty in the frame to relieve.

Activity your broker does not report under section 6045 stands on its own reporting footing.

For box-level form questions and the rest of the reporting mechanics, explore the Form 1099-DA guide index and work from the guide that owns your question.

Choose the next step for the document you have

Four documents, four destinations, and they are not rungs on a ladder. Most accounts stop at the first one.

  • The broker names a TIN or certification issue: work the checklist above and send the corrected certification back to the broker.
  • A statement shows federal income tax withheld: file it with the records for that tax year, alongside the payout record.
  • A CP2000 arrived: that notice has its own response procedure and its own deadline, so see what to do if you also receive a CP2000 first. A live notice outranks preventive reading.
  • No notice, just an uneasy feeling about the account: check your records before an IRS mismatch notice.

Gather your sale date, account-opening record, broker certification request, and withholding statement. Use the checklist to identify the document and next step that fit your situation.

Sources

  • IRS Notice 2024-56, digital asset broker backup-withholding transition relief and the specified transaction categories (specified NFT proceeds, qualifying real-property sales, PDAP sales); issued June 28, 2024. Read with its modifying notice.
  • IRS Notice 2025-33, extension of relief through calendar year 2026, the 2027 preexisting-customer conditions, and the immediate-liquidation amount relief; issued June 12, 2025.
  • IRS Backup withholding, the 24% rate and the identification and certification mechanism, including the Form W-9 route to the payer.
  • IRS Tax Topic 307, backup withholding credited as federal income tax withheld on the taxpayer's return.