Form 941-V: Payment Voucher Rules, Mailing, and Penalties

Form 941-V is the payment voucher a small employer attaches to a paper Form 941 when sending a quarterly balance due by check or money order. Its only purpose is to help the IRS match your paper payment to the right account and the right quarter. You can use it only if you qualify for the small-balance exception to electronic payment; otherwise the IRS requires you to pay electronically and will penalize you for mailing a check.

Who Can Actually Use the Voucher

Paper payment with Form 941-V is an exception, not the default. Most employment tax deposits must be made electronically.¹ You qualify to pay by check with the voucher only if all three of these are true:

Your total taxes after adjustments and nonrefundable credits on Line 12 of Form 941 are under $2,500 for either the current quarter or the preceding quarter.
You did not incur a $100,000 next-day deposit obligation at any point during the current quarter.
You are paying in full with a return filed on or before the deadline.

If your balance due is $2,500 or more and you don’t meet an exception, you must pay electronically.²

One additional group can use the voucher: monthly schedule depositors making a payment under the accuracy of deposits rule. In that situation, the payment can be $2,500 or more.²

Even if you qualify, the IRS is pushing employers off paper. The 2026 Form 941 instructions cite Executive Order 14247 and tell employers to pay their Form 941 balance due electronically.³ Treat the voucher as a shrinking option.

Filling Out the Voucher

The voucher takes about two minutes. It asks for four things, all copied directly from your finished Form 941:

Your Employer Identification Number, entered exactly as it appears on Form 941. A transposed digit can cause the IRS to apply your payment to the wrong account or reject it, and you’ll owe late-payment penalties while it gets sorted out.
The payment amount from Line 14 of Form 941, in dollars and cents. This is your balance due after all adjustments and credits.²
The tax period: fill in the circle for Q1, Q2, Q3, or Q4.
Your business name and address, matching Form 941.

There’s no signature line and no calculation. The two mistakes worth catching before you seal the envelope are a mismatched EIN and a payment amount that doesn’t match Line 14.

Mailing the Payment

Make your check or money order payable to “United States Treasury.” On the face of the check, write your EIN, “Form 941,” and the tax period (for example, “1st Quarter 2026”). That’s your backup if the voucher gets separated from the check during processing.³

Detach Form 941-V from the bottom of your Form 941. Place the voucher and your check loosely in the envelope with the signed return. Do not staple the voucher or payment to the return or to each other.²

When you’re including a payment, send everything to:

Internal Revenue Service
P.O. Box 932100
Louisville, KY 40293-2100⁴

If you pay electronically, you mail the return (without the voucher) to a different “without a payment” address listed in the Form 941 instructions. Sending a payment return to the wrong processing center will delay everything.

Deadlines and Proving You Mailed on Time

Form 941 is due four times a year, and a paper payment must arrive with the return by the same deadline:

First quarter (January–March): April 30
Second quarter (April–June): July 31
Third quarter (July–September): October 31
Fourth quarter (October–December): January 31 of the following year

If a due date falls on a Saturday, Sunday, or legal holiday, the deadline moves to the next business day.⁵

A postmark on or before the deadline counts as timely filing under federal tax law, even if the IRS receives the envelope days later.⁶ A regular first-class stamp gives you no receipt, so if the IRS later says your return arrived late, you have nothing to show. USPS Certified Mail with a return receipt gives you a postmarked record the IRS accepts.

Private carriers also work, but only specific services qualify. The approved list includes select DHL Express, FedEx, and UPS options; basic ground services do not qualify. FedEx Standard Overnight counts; FedEx Ground does not.⁷ With a non-approved method, the delivery date rather than the ship date is what counts.

What It Costs If You Should Have Paid Electronically

Using Form 941-V to pay an amount that should have been deposited electronically is one of the most expensive small-employer mistakes. The IRS treats it as a failure to deposit, and the penalty escalates with how late the deposit is:⁸

1–5 days late: 2% of the undeposited amount
6–15 days late: 5%
More than 15 days late: 10%
Not deposited within 10 days of the first delinquency notice: 15%

On top of the deposit penalty, the IRS charges a separate late-payment penalty of 0.5% per month on any unpaid balance, capped at 25%. Interest accrues daily on the unpaid amount.⁹

Paying Electronically Instead

Even if you’re eligible for the voucher, electronic payment is faster and creates an automatic record. The IRS accepts three methods for Form 941 balances:

EFTPS, the Electronic Federal Tax Payment System. Enrollment takes up to five business days, so don’t sign up on the due date.¹⁰
IRS Direct Pay for businesses, available daily from 12:00 a.m. to 11:45 p.m. ET, with a $10 million per-payment ceiling and no enrollment required.¹¹
The IRS business tax account portal, where you can view balances and pay directly.

When you pay electronically, you do not file Form 941-V, and you mail your return to the “without a payment” address instead of Louisville.²

If Your Check Never Clears

Paper checks go missing more often than employers expect. If two weeks pass and your bank shows the check hasn’t cleared, call the IRS at 800-829-1040 to confirm whether the payment was credited to your account.¹²

If the IRS has no record of receiving it and the check hasn’t cleared your bank, you can place a stop-payment on the original check and send a new payment. The IRS will not charge a dishonored-check penalty in this situation. If your bank charges a stop-payment fee, you can file Form 8546 to ask the IRS to reimburse that bank charge.¹²

1
Internal Revenue Service. Depositing and Reporting Employment Taxes
2
Internal Revenue Service. Form 941 – Employer’s Quarterly Federal Tax Return
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Internal Revenue Service. Instructions for Form 941
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Internal Revenue Service. Where to File Your Taxes for Form 941
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Internal Revenue Service. Employment Tax Due Dates
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eCFR. 26 CFR 301.7502-1 – Timely Mailing of Documents and Payments Treated as Timely Filing and Paying
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Internal Revenue Service. Private Delivery Services (PDS)
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Office of the Law Revision Counsel. 26 U.S. Code 6656 – Failure to Make Deposit of Taxes
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Internal Revenue Service. Quarterly Interest Rates
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Internal Revenue Service. EFTPS – The Electronic Federal Tax Payment System
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Internal Revenue Service. Pay Business Taxes From Your Bank Account
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Internal Revenue Service. General Procedural Questions 2