Send your federal tax payment to the IRS, not your state or local tax office

Federal income tax payments go to the Internal Revenue Service (IRS), the federal agency that collects them. The address or payment method depends on whether you are paying by mail, online, or through your employer. The IRS does not accept payments sent to state tax offices, county offices, or the address on your tax form — those will be delayed or returned.

Most people do not mail a check at all. The IRS processes about 90% of payments through electronic methods: direct debit from your bank account, credit or debit card, or payroll withholding. Mailing a check is slower, takes longer to process, and requires you to calculate the exact amount and include your tax identification number.

Key Takeaways

  • The IRS has a dedicated lockbox address for mailed checks, which varies by state and filing status — using the wrong address delays your payment.
  • Electronic payments through IRS Direct Pay, the Electronic Federal Tax Payment System (EFTPS), or a payment processor are processed the same day and require no mailing address.
  • If you pay through your employer's payroll system, no separate payment is needed — your employer sends withholding directly to the IRS.
  • Payments made by the tax important date (usually April 15) must be postmarked by that date if mailed, or submitted electronically by 11:59 p.m. Eastern Time.
  • The IRS will not contact you by phone, email, or text to request payment — scammers use these methods, so verify any payment request through IRS.gov.

Mailing a check to the correct IRS lockbox address

If you mail a check, it must go to a specific IRS lockbox address that depends on your state and filing status. The IRS maintains separate addresses for individual income tax, business tax, and payroll tax payments. Sending your check to the address printed on your tax form, your local IRS office, or your state tax office will cause delays of weeks or months.

Find your correct mailing address on the IRS website at IRS.gov under "Where to File" or on the instructions page for your tax form. The address will list a lockbox number and city. For example, some individual returns go to a lockbox in Kansas City, while others go to one in Memphis. Write your Social Security number or Employer Identification Number on the check itself, not just on the envelope.

Mail your check at least one week before the tax important date to account for postal delays. The IRS considers a payment on time if it is postmarked by the important date, even if it arrives later. Keep a copy of the check or take a photo of the front and back before mailing, in case you need proof of payment.

Paying electronically through IRS Direct Pay

IRS Direct Pay is the fastest method if you have a bank account. You log into IRS.gov, enter your bank account and routing number, and schedule a payment for any date up to 120 days in the future. The IRS charges no fee, and the payment is processed the same day you submit it. You receive a confirmation number when ready.

Direct Pay works for federal income tax, estimated tax payments, and business taxes. You do not need to create an account — you can pay as a guest using your Social Security number or Employer Identification Number and date of birth. The payment is deducted from your bank account on the date you choose, so you can schedule it for the important date itself if you wish.

If you are unsure of the exact amount you owe, you can pay a partial amount now and another payment later. The IRS will send you a bill if you underpay, and you can then pay the remaining balance through Direct Pay as well.

Paying through EFTPS or a payment processor

The Electronic Federal Tax Payment System (EFTPS) is another free option run by the U.S. Department of the Treasury. You enroll online at EFTPS.gov, link your bank account, and schedule payments. EFTPS is often used by businesses and people who make frequent estimated tax payments, because you can set up recurring payments.

If you prefer not to enter your bank details online, you can pay by credit card or debit card through an IRS-approved payment processor. The IRS lists these processors on IRS.gov — common ones include PayPal, Stripe, and Square. Payment processors charge a convenience fee (usually 1.87% to 2.49% of the payment amount), which the IRS does not charge.

All electronic payments must be submitted by 11:59 p.m. Eastern Time on the tax important date to be considered on time. If you schedule a payment for the important date date, confirm that your payment processor's important date matches the IRS important date — some processors have an earlier cutoff time.

Payments withheld from your paycheck

If you receive a W-2 from an employer, federal income tax is likely already being withheld from your paycheck. Your employer sends this withholding directly to the IRS on a schedule set by law — usually monthly or semi-weekly, depending on the size of the payroll. You do not send this payment yourself.

When you file your tax return, the IRS compares the total tax you owe to the total amount your employer withheld. If your employer withheld too much, you receive a refund. If your employer withheld too little, you owe the difference. You can adjust your withholding by submitting a new Form W-4 to your employer at any time during the year.

Self-employed people and those with income not subject to withholding must make estimated tax payments four times per year. These payments go to the same IRS addresses or electronic systems as regular tax payments.

What to do if you cannot pay by the important date

If you cannot pay the full amount by the tax important date, file your return on time anyway. The IRS charges interest and penalties on unpaid tax, but the penalty for filing late is much larger than the penalty for paying late. Filing on time and paying late costs less than filing late, even if you pay the full amount at filing.

You can set up a payment plan with the IRS if you owe more than you can pay when ready. Short-term plans (120 days or less) are free. Long-term plans charge a setup fee and monthly interest. You can request a payment plan by phone at 1-800-829-1040, through IRS.gov, or by mail with Form 9465.

Recognizing IRS payment scams

The IRS will not call, text, or email you to demand payment. Scammers impersonate the IRS and threaten arrest, license suspension, or deportation to pressure people into paying when ready. If someone contacts you claiming to be from the IRS and demanding payment, hang up or delete the message.

The real IRS contacts people by mail first, not by phone. If you receive a letter from the IRS about unpaid tax, the letter will include a mailing address and phone number. You can verify the letter is real by calling the number on the letter itself or by visiting IRS.gov and searching for the letter number.

Never give your bank account, credit card, or Social Security number to someone who calls or texts you claiming to be from the IRS. The IRS already has this information on file.

Frequently Asked Questions

Can I pay my federal tax through my state tax office?

No. State tax offices process state income tax only, not federal tax. Sending a federal payment to your state office will delay it by weeks or months. Federal payments must go to the IRS lockbox address for your state, or through an IRS electronic payment method.

What if I mail my check to the wrong address?

The check will be returned or forwarded to the correct lockbox, which delays processing by several weeks. The IRS will still accept the payment if it arrives before the important date, but you will not receive confirmation for a long time. Use electronic payment to avoid this risk.

Do I need to include a payment voucher with my check?

No voucher is required, but you must write your Social Security number or Employer Identification Number on the check itself. If you want to include additional information, you can use Form 1040-ES (for estimated payments) or a plain piece of paper with your name, address, phone number, and tax year.

Can I pay my federal taxes with a credit card through IRS.gov?

You can pay by credit card, but only through an IRS-approved payment processor listed on IRS.gov, not directly through the IRS website. The processor charges a convenience fee. IRS Direct Pay (free) and EFTPS (free) both work with bank accounts and have no fees.

What happens if I overpay my federal taxes?

If you pay more than you owe, the IRS will either refund the overpayment to your bank account or explore it to next year's tax bill. You can choose which option when you file your return. Refunds typically arrive within 21 days if you file electronically and choose direct deposit.