The IRS gives you four main ways to pay, and which one you use depends on whether you owe at filing time or are making a quarterly payment

You can pay the IRS by electronic transfer from your bank account, by credit or debit card, by mail with a check or money order, or through the IRS Direct Pay system on their website. The fastest and safest method is electronic — the IRS processes it within one business day and you get a confirmation number when ready. If you owe when you file your return, you can authorize payment right through your tax software or Form 1040. If you make quarterly estimated tax payments, you use the IRS Direct Pay system or the Electronic Federal Tax Payment System (EFTPS).

The address you mail a payment to depends on where you live and what form you are filing with. The IRS publishes a different mailing address for each state in the instructions that come with Form 1040. Using the wrong address delays processing and can trigger notices about late payment. Electronic payment avoids this problem entirely — there is no address to get wrong.

Key Takeaways

  • Electronic payment through IRS Direct Pay or EFTPS is processed within one business day and gives you a confirmation number you can save as proof.
  • If you owe tax when you file, you can pay through your tax software or by authorizing payment on Form 1040 itself.
  • Mailed checks or money orders must go to a state-specific address listed in the Form 1040 instructions, not to the main IRS office.
  • Credit and debit card payments are allowed but charged a processing fee by a third-party processor, typically 1.87 to 2.35 percent of the amount.
  • Quarterly estimated tax payments use IRS Direct Pay or EFTPS, not the same process as filing-time payments.

Paying when you file your tax return

When you file Form 1040, you have three options to pay any tax you owe. The simplest is to authorize an electronic withdrawal from your checking or savings account — you provide your routing number and account number, and the IRS pulls the money on the date you choose. This can happen the same day you file or up to a month later. You receive a confirmation number when ready.

If you use tax software to file electronically, the payment option appears on screen before you submit. If you file by mail, you include a check or money order with your return and write your Social Security number, the tax year, and "1040" on the front. The address to mail it to is in the Form 1040 instructions and changes by state — do not mail it to the main IRS office in Washington.

Credit and debit card payments are also allowed when you file. You pay a processing fee to a third-party company (not the IRS) that ranges from roughly 1.87 to 2.35 percent of your payment. The IRS website lists the approved payment processors. This method is useful if you want to earn credit card rewards, but the fee makes it more expensive than electronic bank transfer.

Paying by mail with a check or money order

If you mail a payment, use a check or money order only — the IRS does not accept cash by mail. Write your name, address, Social Security number, daytime phone number, and tax year on the front of the check. Write "1040" and the tax year in the memo line. Do not staple the check to your return; paper-clip it or tape it to the top of the first page.

The mailing address depends on your state and is printed in the instructions that come with Form 1040. The IRS publishes a separate address for each state because payments are processed at regional centers. Mailing to the wrong address adds two to three weeks to processing time and can trigger a notice that your payment was not received. If you are unsure of your state's address, you can find it on the IRS website under "Where to File" or call the IRS at 800-829-1040.

Mail your payment so it arrives by the tax important date — April 15 for most filers, or the next business day if April 15 falls on a weekend or holiday. The postmark date is what counts, not the date the IRS receives it. If you mail it after the important date, you owe interest and possibly a late-payment penalty, even if the check arrives within a few days.

Using IRS Direct Pay for electronic payments

IRS Direct Pay is a free system on the IRS website where you can pay from your bank account without entering your information into tax software. You go to irs.gov, find the Direct Pay link, and enter your Social Security number, filing status, and the amount you owe. You then provide your bank routing number and account number. The IRS does not store this information — it is used only for that single transaction.

You can schedule the payment to happen when ready or up to 120 days in the future. This is useful if you want to pay after you receive a paycheck or bonus. The system gives you a confirmation number on screen that you should save or print. The payment clears within one business day, and you can check the status by logging back into Direct Pay with your Social Security number and the confirmation number.

Direct Pay works for filing-time payments, quarterly estimated tax payments, and payments on notices the IRS sends you. You do not need to create an account or read software. The only requirement is that you have a U.S. bank account and know your routing and account numbers.

Using EFTPS for recurring or quarterly payments

The Electronic Federal Tax Payment System (EFTPS) is designed for people who make regular payments — self-employed people paying quarterly estimated tax, employers paying payroll tax, or anyone else with a pattern of payments. You enroll once by phone or online, create a PIN, and then you can schedule payments through the EFTPS website or by phone.

EFTPS requires you to enroll at least one business day before your first payment. You call 1-800-555-3453 or go to eftps.gov to set up an account. Once enrolled, you can schedule payments up to 120 days in advance. The system is free and gives you a confirmation number for each payment. If you miss a quarterly important date, you can still pay through EFTPS, but you will owe interest and possibly a penalty.

EFTPS is separate from Direct Pay — they are two different systems. Direct Pay is faster to set up (no enrollment) but EFTPS is better if you make payments regularly because you do not re-enter your bank information each time. Many self-employed people use EFTPS for quarterly estimated tax payments and Direct Pay for filing-time payments.

Paying by credit or debit card

The IRS allows credit and debit card payments through approved third-party processors. These companies charge a fee — typically between 1.87 and 2.35 percent of the amount you pay — that you pay to them, not to the IRS. The IRS website lists the current approved processors and their fee rates.

You pay by card through the processor's website, not directly to the IRS. The processor handles the transaction and sends the money to the IRS. You receive a confirmation number from the processor. The payment is treated as received on the date you authorize it, even if it takes a day or two to clear.

Card payments make sense if you are earning rewards points or cash back that exceed the fee, or if you do not have a bank account. For most people, electronic bank transfer through Direct Pay or EFTPS is cheaper because there is no fee.

What happens after you pay

Once the IRS receives your payment, it is applied to your account within one to three business days. If you paid electronically, you have a confirmation number that proves the payment was made. Keep this number with your tax records. If you mailed a check, keep a copy of the front and back of the cancelled check once your bank returns it.

If you overpaid your tax — meaning you paid more than you owed — the IRS will either send you a refund or explore the overpayment to next year's tax, depending on what you requested on your return. Refunds by mail take four to six weeks; refunds by direct deposit take two to three weeks.

If you underpaid or did not pay in full, the IRS will send you a notice with the amount still owed, plus interest calculated from the original important date. If the amount is small, you can pay it through Direct Pay or EFTPS. If you cannot pay in full, you can set up a payment plan by calling 800-829-1040 or through the IRS website.

Frequently Asked Questions

Can I pay the IRS by credit card without a fee?

No. All credit and debit card payments to the IRS go through third-party processors who charge a fee of roughly 1.87 to 2.35 percent. The IRS does not charge the fee — the processor does. Electronic bank transfer through Direct Pay or EFTPS is free.

What if I mail my payment to the wrong address?

It will be delayed by two to three weeks while it is rerouted to the correct processing center. You may receive a notice saying the IRS did not receive your payment on time, even though it eventually arrives. If this happens, call 800-829-1040 with your confirmation number or cancelled check to show when you mailed it.

Can I pay the IRS in cash?

Not by mail. You cannot send cash through the mail to the IRS. You can pay in cash at certain retail locations like grocery stores or pharmacies that offer bill-pay services, but this is not a direct IRS payment method — you are paying a third party who forwards it. Electronic transfer or check is simpler.

How do I know if my payment was received?

If you paid electronically, you have a confirmation number from Direct Pay or EFTPS. If you mailed a check, the postmark date is your proof. You can also check your account on the IRS website using your Social Security number and PIN. Payments typically show as received within one to three business days.

What if I cannot pay the full amount I owe?

Pay what you can by the important date to reduce interest and penalties. Then call 800-829-1040 to set up a payment plan for the rest. The IRS offers short-term plans (120 days or less) at no cost and long-term plans with a setup fee. You can also set up a plan online through the IRS website.