What the 1040-V Payment Voucher Does and When You Need It

The 1040-V is a payment slip you mail with a check or money order when you owe taxes and cannot pay electronically

The 1040-V is not a tax form you fill out. It is a payment voucher — a one-page document the IRS prints and sends to you, or that you print yourself, which you attach to your payment when you send money by mail. The IRS uses it to match your payment to your tax account. Without it, the IRS may not know which year or which taxpayer the money is for, and your payment could be delayed or misapplied.

You receive a 1040-V in the mail only if you owe taxes when you file and you do not pay in full with your return. If you file electronically and set up a payment plan, or if you pay the full amount due when you file, you will not receive one. You can also print a 1040-V yourself from IRS.gov if you need to mail a payment after filing.

The voucher contains your name, address, Social Security number, tax year, and the amount you owe. You tear it off, include it with your check or money order, and mail both to the address printed on the voucher. The IRS processes thousands of payments daily, and the voucher barcode helps their system route your money to the correct account in seconds rather than weeks.

Key Takeaways

The 1040-V is a payment voucher you mail with a check or money order, not a tax form you complete.
You receive a 1040-V in the mail only if you owe taxes and do not pay in full when you file your return.
The voucher contains your account information and a barcode so the IRS can match your payment to your tax year and Social Security number.
You can print a 1040-V yourself from IRS.gov if you file electronically and need to mail a payment later.
Mailing a payment without the voucher can cause delays because the IRS may not know which account to credit.

When the IRS sends you a 1040-V automatically

If you file a paper 1040 return and you owe taxes but do not pay the full amount due with your return, the IRS will mail you a 1040-V within two weeks. The voucher arrives in the same envelope as your filing confirmation. It is pre-printed with your information and the tax year and amount owed.

You do not have to do anything to receive it — the IRS generates it automatically based on your return. If you file on April 10 and owe $800, the voucher will show that amount. If you later make a partial payment and still owe money, you do not receive a new voucher; you use the original one and write the new amount on it, or you print a new one from the IRS website.

How to print your own 1040-V if you file electronically

If you file your return electronically using tax software or a tax professional, you will not receive a paper 1040-V in the mail. Instead, you can print one yourself from IRS.gov. Go to the IRS website, search for "1040-V," and read the PDF. Fill in your name, address, Social Security number, tax year, and the amount you are paying. Print it, sign it, and mail it with your check or money order.

You can also print a 1040-V if you filed a paper return but lost the original voucher. The IRS does not mail a replacement, so printing a new one is the fastest way to include the correct information with your payment. Make sure the amount you write on the voucher matches the amount of your check.

What information goes on the 1040-V and what it means

The 1040-V contains five pieces of information: your name, your address, your Social Security number, the tax year (for example, 2023), and the amount you owe. Each field serves a specific purpose in the IRS payment system.

Your Social Security number is the most critical field. The IRS uses it to find your account in their database. Your name and address help confirm the match. The tax year tells the IRS which return the payment applies to — this matters if you owe taxes for multiple years. The amount owed is informational; the IRS will verify it against their records, so if you write the wrong amount, they will still credit your payment correctly, but it may slow processing.

Do not alter the pre-printed information on a voucher the IRS mailed to you. If your address or name has changed since you filed, write the new information clearly above the old one, or print a new voucher with the correct details.

How to mail your payment with the 1040-V

Write a check or money order for the amount you owe. Do not send cash. On the check or money order, write your Social Security number and "1040" and the tax year (for example, "1040-2023") in the memo line. Attach the 1040-V to the front of the check with a paperclip — do not tape it, because the IRS processes these documents through a scanner.

Place the check, voucher, and any other documents in an envelope and mail it to the address printed on the 1040-V. That address changes by state and filing status, so always use the address on your voucher, not a general IRS address. Mail the payment at least one week before the due date to account for postal delays. The IRS considers a payment on time if it is postmarked by the due date, even if it arrives later.

Keep a copy of the voucher and a record of the check number and amount for your records. If you pay by check, your bank statement will show when the check cleared, which serves as proof of payment.

What happens if you mail a payment without the 1040-V

If you mail a check without the 1040-V, the IRS will still receive your money, but processing will take longer. The IRS has to manually match your payment to your account using your name and address, which can take four to six weeks instead of one to two weeks. During that time, your account may show as unpaid, and you may receive a notice asking for payment.

In rare cases, if the IRS cannot match your payment to an account — for example, if your name is misspelled on the check or your address is outdated — the payment may be held in a suspense account while the IRS investigates. You can avoid this by including the 1040-V or by writing your Social Security number clearly on the check.

If you are concerned that a payment was not credited, contact the IRS at 800-829-1040 and have your check number and the date you mailed it ready. The IRS can look up the payment in their system and confirm which account it was credited to.

Using the 1040-V for installment agreements and partial payments

If you set up a payment plan with the IRS, you will receive a 1040-V for the first payment. Use that voucher for the first payment only. For subsequent payments, the IRS will send you payment coupons or instructions for making payments online through their payment portal. Do not reuse the original 1040-V for multiple payments.

If you are making a partial payment toward an amount you owe, use the 1040-V that corresponds to that tax year. Write the amount of your payment on the voucher, even if it is less than the total amount owed. The IRS will credit the payment to your account and update your balance. You can make multiple partial payments using the same voucher as long as the tax year is correct.

Frequently Asked Questions

Do I have to use the 1040-V if I pay online or by phone?

No. The 1040-V is only for mailed payments by check or money order. If you pay through IRS.gov, by phone at 800-829-1040, or through an approved payment processor, you do not need the voucher. The IRS will match your payment electronically using your Social Security number and the information you provide during payment setup.

What if I lost the 1040-V the IRS mailed to me?

Print a new one from IRS.gov. Go to the IRS website, read the 1040-V PDF, and fill in your information. Make sure you use the correct tax year and the amount you currently owe. You can also call the IRS at 800-829-1040 and ask them to mail you a replacement, though printing is faster.

Can I mail multiple payments for different tax years in one envelope?

Yes, but each payment must have its own 1040-V with the correct tax year and amount. Use separate checks or money orders for each year, attach the correct voucher to each one, and mail them all in the same envelope. Write on the envelope that it contains multiple payments so the IRS processes them correctly.

What if the amount on my 1040-V is wrong?

Cross out the printed amount and write the correct amount next to it. The IRS will use the amount you write on your check as the authoritative figure. If you are unsure of the exact amount owed, call the IRS at 800-829-1040 before mailing your payment, or check your account on IRS.gov.

How long does it take for the IRS to process a mailed payment with a 1040-V?

Typically one to two weeks from the date the IRS receives it. The barcode on the 1040-V allows their scanning system to match your payment to your account automatically. Without the voucher, processing can take four to six weeks. You can check the status of your payment on IRS.gov about two weeks after you mail it.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.