Backup withholding: the 24% rule
Last verified 2026-11-02 · Sources: IRS Topic no. 307 · Report an error
Backup withholding is a flat 24% that a payer must take from reportable payments when the payee's taxpayer identification number is missing or the IRS has notified the payer. It is not income tax withholding and it is not a penalty on the payee.
What comes out of a payment
Enter a reportable payment to see the 24% and what reaches the payee.
When a payer has to withhold 24%
| Situation | What happens |
|---|---|
| The payee does not give a TIN in the required way | 24% is withheld from reportable payments |
| The IRS tells the payer the TIN is incorrect | 24% until a correct TIN is provided |
| The IRS sends a notice to start backup withholding | 24% until the IRS says to stop |
| The payee underreported interest or dividends | 24% on those payments |
Source: IRS Topic no. 307, which states the payer "must withhold at a flat 24% rate" in these cases.
How to stop it
Give the payer a completed Form W-9 with the correct name and TIN. A payer cannot accept a verbal number for backup-withholding purposes in most cases, and cannot simply stop withholding because the payee asks. If the IRS issued the notice, the payer needs a corrected TIN or an IRS letter before it can stop.
Backup withholding is not the same as regular withholding
| Backup withholding | Regular withholding | |
|---|---|---|
| Rate | Flat 24% | From the W-4 and the percentage-method tables |
| Applies to | Reportable payments such as 1099 income | Wages |
| Chosen by | Not chosen: it is triggered by a missing or bad TIN | The employee, on Form W-4 |
| Stops when | The TIN problem is fixed | The employee files a new W-4 |
Frequently asked questions
- Is backup withholding 24% or 28%?
- It is 24%. The 28% figure is sometimes quoted for other information-reporting penalties and is not the backup-withholding rate.
- Is backup withholding refundable?
- Yes. The amount withheld is reported on the 1099 and credited against the payee's tax on the return, so over-withholding comes back as a refund.
- Does backup withholding apply to wages?
- No. Wages are covered by Form W-4 withholding. Backup withholding applies to reportable payments such as interest, dividends, rents, royalties and payments to contractors.
- Can a payer choose not to backup withhold?
- No. Once a condition in the rules applies, the payer is required to withhold; choosing not to exposes the payer to liability for the amount that should have been withheld.
Related
IRS Topic no. 307, Backup withholding
IRS Form W-9
All figures verified on 2026-10-30.