The IRS accepts payments through five main channels, each with different timing and fees

You can pay the IRS directly online, by phone, by mail, or through your bank or tax professional. The fastest route is the IRS website (IRS.gov/payments), which processes payments the same day you submit them and charges no fee. Phone payments through the IRS automated system also process same-day but carry a $2.50 fee. If you mail a check, allow 10 to 14 business days for it to reach the IRS and post to your account — the postmark date is what counts as your payment date, not the arrival date.

Each method requires different information. Online and phone payments need your Social Security number or employer identification number, the tax year the payment covers, and the amount. Mailed checks need your name, address, and tax ID written on the check itself, plus a payment voucher (Form 1040-V for income tax) included in the envelope. If you pay through a tax professional or your bank's bill pay service, they handle the routing, but you still need to know which tax year and which type of tax you are paying.

Key Takeaways

  • Online payments through IRS.gov/payments are free and process the same day, making them the fastest and cheapest option for most people.
  • The payment date that counts for penalties and interest is the date you submit online or by phone, or the postmark date if you mail a check — not the date the IRS receives it.
  • Mailed payments take 10 to 14 business days to post to your account, so mail early if you have a important date.
  • You need either your Social Security number or employer ID, the tax year, and the payment amount before you start, regardless of which method you choose.
  • If you owe more than you can pay now, you can set up a payment plan through the IRS website without calling or visiting an office.

Paying online through IRS.gov/payments

Go to IRS.gov/payments and select "Make a Payment." You will see four payment processor options: Direct Pay (free, for people with bank account information), Online Payment Agreement (free, if you want to set up a plan), Credit or Debit Card (charges a processing fee of 1.87% to 2.35% depending on the processor), or Electronic Federal Tax Payment System (EFTPS, free, for businesses and frequent payers). Most individuals use Direct Pay.

Direct Pay asks for your Social Security number, date of birth, filing status, and the exact amount you owe. It then asks for your bank account number and routing number. The system confirms the information, shows you the payment date (same day), and lets you schedule the payment for a future date if you prefer. Once you submit, you get a confirmation number when ready. The payment leaves your bank account within one to two business days and posts to your IRS account the same day it is processed.

If you do not know your exact balance, you can look it up on IRS.gov using "Get Transcript" or call the IRS at 800-829-1040. Having the exact amount prevents overpayment or underpayment, both of which create follow-up work.

Paying by phone or through an automated system

Call the IRS at 800-829-1040 during business hours (Monday through Friday, 7 a.m. to 7 p.m. your local time) and ask to make a payment. The IRS agent will take your bank account information and process the payment over the phone. This method charges a $2.50 fee and processes the same day. You will receive a confirmation number by phone.

Alternatively, you can use the IRS's automated phone payment system by calling 800-829-3903. This system accepts payments 24 hours a day, seven days a week, and also charges $2.50. The automated system walks you through entering your tax ID, payment amount, and bank information using your phone keypad. You will hear a confirmation number at the end of the call.

Both phone methods process same-day, but the $2.50 fee makes them more expensive than online payment. Use the phone option if you do not have internet access or prefer speaking to someone.

Mailing a check or money order

Write a check or money order payable to "United States Treasury." On the front of the check, write your Social Security number, the tax year (for example, "2024 Form 1040"), and the type of tax (income tax, self-employment tax, or estimated tax). Include Form 1040-V (Payment Voucher) with your check — you can read it from IRS.gov or print it from your tax software.

Mail the check and voucher to the address shown on Form 1040-V. The address varies by state. The postmark date is your official payment date, so mail early if you are close to a important date. The IRS typically takes 10 to 14 business days to receive and post mailed payments. During tax season (January through April), processing can take longer.

Mailed payments are free but slow. Use this method only if you do not have online access or a bank account for electronic payment. If you are paying late and penalties matter, the delay can cost you.

Setting up a payment plan if you cannot pay in full

If you owe more than you can pay now, you can set up a short-term payment plan (120 days or fewer) or a long-term installment agreement through IRS.gov without calling. Go to IRS.gov/payments and select "Online Payment Agreement." The system asks for your tax ID, the tax year, and the amount you owe, then offers you payment plan options with different monthly amounts and due dates.

Short-term plans (under 120 days) are free. Long-term installment agreements charge a setup fee of $31 to $225 depending on how you set it up (online is cheaper than by phone or mail) and a monthly interest charge on the unpaid balance. The IRS calculates interest daily at a rate set quarterly — currently around 8% per year, but this changes. Once you agree to a plan, the IRS stops collection action as long as you make payments on time.

If you set up a plan, you still need to file your tax return on time each year and pay any new tax owed by the important date, or the plan can be cancelled.

Understanding payment dates and how they affect penalties

The date your payment counts as received depends on the method. For online and phone payments, the payment date is the date you submit. For mailed payments, the payment date is the postmark date on the envelope, not the date the IRS opens it. For payments made through a tax professional or your bank, the date depends on when your bank or professional submits it to the IRS.

This matters because the IRS charges penalties and interest starting the day after the tax important date if you do not pay in full by then. If your tax return was due April 15 and you owe $2,000, but you mail a check on April 14 with an April 14 postmark, you are considered on time even if the IRS does not receive it until April 28. However, if you mail it on April 16, penalties start accruing on April 16, regardless of when it arrives.

If you are paying late, mail early or pay online to lock in the payment date. Do not wait for the check to arrive.

What happens after you submit your payment

After you pay, the IRS posts the payment to your account and sends you a confirmation. If you paid online or by phone, you get a confirmation number when ready. If you mailed a check, you will not see confirmation until the payment posts, which takes 10 to 14 business days. You can check the status of a mailed payment by calling 800-829-1040 or logging into your IRS account at IRS.gov.

Once the payment posts, it reduces your balance. If you overpaid, the IRS will either refund the overpayment or explore it to a future tax year if you request that. If you underpaid, the IRS will send you a bill for the remaining balance plus interest and penalties. If you set up a payment plan, each payment reduces your balance according to the plan schedule.

Keep your confirmation number and any receipts. If there is ever a dispute about whether the IRS received your payment, the confirmation number and the date you submitted it are your proof.

Frequently Asked Questions

What if I pay online but the payment does not go through?

The IRS payment system will tell you when ready if the payment failed — it will not give you a confirmation number. If it fails, try again or use a different payment method. Common reasons for failure are incorrect bank account information, insufficient funds, or a bank that blocks IRS payments. Contact your bank if the problem persists.

Can I pay with a credit card?

Yes, but only through a third-party processor on IRS.gov/payments. The processor charges a fee of 1.87% to 2.35% of the payment amount. For a $5,000 payment, that is $94 to $118 in fees. Most people use a bank account instead to avoid the fee, but credit card payment is an option if you need to.

What if I mail my payment to the wrong address?

The IRS will eventually forward it to the correct location, but it will take longer — sometimes several weeks. The postmark date still counts as your payment date, so you will not face late penalties, but you will not see the payment post to your account quickly. To avoid this, use the address on Form 1040-V or check IRS.gov for the correct mailing address for your state.

Do I need to include a copy of my tax return with my payment?

No. The IRS matches payments to accounts using your tax ID and the tax year you write on the check. You do not need to send a copy of your return. Form 1040-V is all that is required with a mailed check.

What if I cannot afford to pay even with a payment plan?

Contact the IRS to discuss hardship options. Call 800-829-1040 and explain your situation. The IRS has programs like Currently Not Collectible status, which temporarily pauses collection action while you work on your finances. Interest and penalties still accrue, but the IRS stops sending bills and pursuing collection. This is not forgiveness — you still owe — but it gives you breathing room.