For federal taxes, make the check payable to United States Treasury. That is who you write the tax check to whether you are paying a balance due on your Form 1040, sending in a quarterly estimated payment, or paying an amount shown on an IRS notice. Federal regulations require this exact payee name on any check or money order sent for federal tax.1eCFR. 26 CFR 301.6311-1 Payment by Check or Money Order
Why Not “IRS” or “Internal Revenue Service”
The IRS processes tax payments, but the Treasury is the legal recipient of federal revenue. A check made out to “IRS” or “Internal Revenue Service” is not correct. If one arrives that way, IRS staff will stamp “United States Treasury” onto the payee line by hand before depositing it, which pulls the check out of the normal automated flow and can slow the credit to your account.2Internal Revenue Service. IRM 3.8.45 Manual Deposit Process Write out the full payee name. Do not abbreviate to “US Treasury” or “USA.”
What Else to Write on the Check
The payee name alone will not get your payment posted to the right account. The IRS asks you to write the following directly on the check:3Internal Revenue Service. Pay by Check or Money Order
- Your name and address as they appear on the return.
- A daytime phone number.
- Your taxpayer identification number — Social Security number, ITIN, or EIN. On a joint return where you and your spouse were assessed separately, add “MFT 31 separate assessment” on the memo line.
- The tax year the payment covers.
- The form number or IRS notice number, such as “1040,” “1040-ES,” or the notice reference.
Check that the numeric amount in the box matches the amount you spell out on the line below it. A mismatch can send the check back or post it for the wrong figure.
Include the Right Voucher and Skip the Staples
If you owe a balance on your annual return, send Form 1040-V with the check. The voucher carries your name, address, SSN, and the payment amount, and it helps the IRS match your payment to your return.4Internal Revenue Service. 2025 Form 1040-V Put the check, voucher, and return loose in the envelope. No staples, no paper clips. The processing centers run mail through automated scanners, and fasteners jam the equipment.3Internal Revenue Service. Pay by Check or Money Order
For quarterly estimated payments, the payee is the same. Write “2026 Form 1040-ES” and your SSN on the check, and mail it with the correct quarterly voucher from the Form 1040-ES package.5Internal Revenue Service. 2026 Form 1040-ES The mailing address for estimated payments is not always the same as for your annual return, so read the voucher instructions before you seal the envelope.
Where to Mail It
The IRS uses different addresses depending on the state you live in and whether you are sending payment with a return. The current address for your situation is printed on the back of Form 1040-V and posted on the IRS website.6Internal Revenue Service. Where to File Addresses for Taxpayers and Tax Professionals Filing Form 1040 Mailing to the wrong P.O. box can push processing back by weeks.
If you use a courier instead of USPS, only certain IRS-designated services from DHL Express, FedEx, and UPS qualify under the timely-mailing rule. Standard ground shipping does not qualify.7Internal Revenue Service. Private Delivery Services (PDS) Couriers also cannot deliver to a P.O. box, so you have to use one of the IRS street addresses for private delivery rather than the address on the voucher.8Internal Revenue Service. Submission Processing Center Street Addresses for Private Delivery Service (PDS)
Proving You Paid on Time
Under federal law, the U.S. postmark on your envelope counts as the payment date, even if the check arrives at the IRS several days later.9Office of the Law Revision Counsel. 26 USC 7502 – Timely Mailing Treated as Timely Filing and Paying The envelope has to be properly addressed, carry enough postage, and be postmarked on or before the deadline. A postmark one day late loses the protection.
Certified mail with a return receipt creates a paper trail showing when you sent the payment and when the IRS received it.10Taxpayer Advocate Service. Taxpayer Mails Return Registered mail is treated as legal proof of delivery under the statute.9Office of the Law Revision Counsel. 26 USC 7502 – Timely Mailing Treated as Timely Filing and Paying If you use a designated courier, keep the courier’s dated mailing receipt.
Give it at least two weeks after mailing before you worry. If the check still has not cleared your bank, call the IRS at 800-829-1040 to confirm whether the payment posted.11Internal Revenue Service. General Procedural Questions
If the Check Bounces
A check that comes back for insufficient funds triggers a separate federal penalty on top of the tax you still owe. For checks of $1,250 or more, the penalty is 2 percent of the check amount. For checks under $1,250, the penalty is $25 or the amount of the check, whichever is less.12Office of the Law Revision Counsel. 26 USC 6657 – Bad Checks This is in addition to any late-payment penalty and interest.
The IRS can waive the bad-check penalty if you show reasonable cause to believe the check would clear. After you receive Letter 608C, respond in writing with your explanation. If you placed a stop-payment order rather than having the check bounce, include a copy of the stop-payment request; the penalty should not apply in that situation.13Internal Revenue Service. Topic No. 206, Dishonored Payments
State and Local Tax Checks Go Somewhere Else
“United States Treasury” is only for federal taxes. State income tax checks are made out to a payee named by the state — often the state treasurer or the state department of revenue. The exact name is on the state’s payment voucher or tax authority website. State returns may also want a state-specific account or ID number written on the check in addition to your SSN.
Local property taxes follow the same principle with a different payee — usually a county treasurer or city tax collector named on the bill or coupon you received. If the bill does not clearly say who to write the check to, call the office listed on it before mailing anything.
An Electronic Payment Skips the Payee Question
You do not have to mail a check at all. IRS Direct Pay is free, draws from a bank account, and gives you an instant confirmation number. You can schedule a payment up to 365 days in advance.14Internal Revenue Service. Direct Pay With Bank Account EFTPS is another free option, though individuals can no longer open new EFTPS accounts and are directed to Direct Pay or their IRS Online Account; existing users and businesses can still use it.15Internal Revenue Service. EFTPS: The Electronic Federal Tax Payment System Debit or credit card payments run through third-party processors, which charge their own fee. Electronic payments confirm on the spot, which is worth considering if you are close to a deadline or have had a check go astray in the past.