The payment address depends on which tax you're sending and how you're sending it

The IRS does not have one mailing address for all federal tax payments. Where you send your check, wire, or electronic payment depends on whether you're paying income tax, payroll tax, excise tax, or something else — and whether you're an individual, a business, or an employer. The IRS publishes different addresses for different payment types, and using the wrong one delays processing and can trigger notices about late payment even though you sent it on time.

If you're paying by mail, the address goes on the envelope, not on the check itself. The IRS sorts payments by type before they reach the processing center, so the address routes your payment to the right department. Electronic payments (ACH transfers, wire transfers, credit card payments through an authorized processor) do not use a mailing address at all — they route through the banking system to a lockbox account number instead.

Key Takeaways

  • Individual income tax payments by mail go to a regional lockbox address that depends on your state; the IRS website lists all of them by state and payment type.
  • Payroll tax deposits (941, 940, 943) must go through the Electronic Federal Tax Payment System (EFTPS) or an IRS-authorized payment processor; mailing a payroll tax check is not accepted.
  • Estimated tax payments use the same mailing addresses as regular income tax returns but must arrive by the quarterly important date to avoid penalties.
  • Electronic payments route through account numbers and routing information, not mailing addresses, and clear faster than checks.
  • Sending a payment to the wrong address delays processing and can result in a late-payment notice even if you mailed it on time.

Individual income tax payments by mail

The IRS maintains a list of lockbox addresses for individual income tax payments, organized by state. Each state has one or more addresses depending on the region. You find the correct address on the IRS website under "Where to File" or by searching "IRS tax payment address" plus your state name. The address appears on the payment voucher you send with your check.

If you're mailing a check with Form 1040 or a payment voucher, write your Social Security number on the check itself. The envelope address routes the payment to a lockbox — a bank facility that processes payments on behalf of the IRS. The lockbox scans the check, records the payment against your account, and deposits it into the IRS's bank account. Processing typically takes 5 to 7 business days from the date the lockbox receives it, not from the date you mailed it.

The postmark date is what matters for timeliness, not the date the IRS receives the payment. If the postmark shows the payment was mailed by the tax important date (usually April 15 for income tax), the IRS treats it as on time even if the lockbox does not process it until weeks later. Keep the receipt from the post office as proof of the postmark date.

Payroll tax deposits for employers

Payroll taxes — Social Security, Medicare, federal income tax withheld from employee paychecks — cannot be paid by mailing a check to an IRS address. The IRS requires all payroll tax deposits to go through the Electronic Federal Tax Payment System (EFTPS) or through an IRS-authorized payment processor like a payroll service, bank, or accounting software.

EFTPS is a free system run by the Department of the Treasury. You enroll online at eftps.gov, link your business bank account, and schedule deposits for Form 941 (quarterly), Form 940 (annual unemployment tax), Form 943 (agricultural employees), or Form 944 (small employers). The system generates a confirmation number when the deposit is scheduled, and you can check the status online. Deposits typically clear within one business day.

If you use a payroll processor or accounting software, that service handles the EFTPS deposit on your behalf. You do not need to enroll in EFTPS separately — the processor routes the payment through their own EFTPS account. The processor sends you a confirmation, and you should keep it with your tax records.

Estimated tax payments

Estimated tax payments use the same mailing addresses as regular income tax payments — the state-specific lockbox addresses listed on the IRS website. You can mail a check with Form 1040-ES (the estimated tax voucher), or you can pay electronically through EFTPS, the IRS Direct Pay system, or an authorized payment processor.

Estimated tax payments are due on the 15th of April, June, September, and January (the following year). The postmark date must show the payment was mailed by that date. If you miss a quarterly important date, you may owe an underpayment penalty even if you pay the full amount by April 15 of the following year. The penalty is calculated based on how long the IRS was short the money.

Electronic payments and online systems

The IRS offers three main ways to pay electronically without mailing a check: EFTPS, IRS Direct Pay, and credit or debit card payments through an authorized processor.

EFTPS is free and works for both individual and business payments. You enroll at eftps.gov, link your bank account, and schedule payments. You can schedule a payment up to 120 days in advance. The system confirms the payment when ready and shows the status online. Payments typically clear within one business day.

IRS Direct Pay is also free and is designed for individual income tax payments. You visit irs.gov/payments, enter your tax information, and authorize a bank transfer. You do not need to enroll in advance. The system confirms the payment when ready and sends you a confirmation number. Payments clear within one business day.

Credit and debit card payments go through third-party processors approved by the IRS — companies like PayPal, Stripe, and others. The processor charges a convenience fee (usually 1.87% to 2.35% of the payment amount), which you pay in addition to the tax itself. The fee is not deductible. The processor routes the payment to the IRS and sends you a confirmation number.

Business tax payments other than payroll

Business income tax, self-employment tax, and corporate tax payments can be mailed or paid electronically. If you mail a check, use the lockbox address for your state (the same addresses as individual income tax). If you pay electronically, use EFTPS, IRS Direct Pay, or an authorized processor.

Excise tax, employment tax other than payroll (like backup withholding), and other specialized taxes have their own payment addresses and procedures. The IRS website lists these under "Where to File" organized by form number. If you are unsure which address applies to your payment, search the IRS website for the specific form number or call the IRS at 800-829-1040.

What happens if you send a payment to the wrong address

If you mail a check to an incorrect address, it may be returned to you, forwarded to the correct lockbox, or processed slowly. The delay can result in the IRS sending a notice that your payment is late, even though you mailed it on time. The notice will show the date the lockbox received the payment, not the date you mailed it.

If you receive a late-payment notice after mailing to the wrong address, contact the IRS with proof of the postmark date (the receipt from the post office). The IRS can adjust the penalty if you can show the payment was mailed by the important date. Keep the post office receipt for at least three years.

Electronic payments routed to the wrong account number will be rejected by the banking system, and the processor will notify you when ready. You can then resubmit the payment to the correct account. Electronic payments are less likely to be lost or delayed because the banking system confirms the routing information before the transfer clears.

Frequently Asked Questions

Can I pay my federal taxes at a bank or post office?

No. Banks and post offices do not accept federal tax payments directly. You must mail a check to the IRS lockbox address, use EFTPS, use IRS Direct Pay, or pay through an authorized processor. Some banks offer bill pay services that mail a check on your behalf, but the check still goes to the IRS lockbox address.

What if I do not know my state's lockbox address?

Search the IRS website for "Where to File" and select your state. The page lists all lockbox addresses by tax type and payment method. You can also call the IRS at 800-829-1040 and ask for the address. Write down the address and keep it with your tax records — the address does not change year to year.

Is it faster to pay by mail or electronically?

Electronic payments are faster. EFTPS and IRS Direct Pay clear within one business day and show a confirmation number when ready. Mailed checks take 5 to 7 business days to process after the lockbox receives them, plus 2 to 5 days for mail delivery. If you are paying close to a important date, pay electronically.

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

Yes, if you are mailing a check for estimated tax or a payment not attached to a return. Use Form 1040-ES for estimated tax or the payment voucher provided by the IRS for other payments. Write your Social Security number or EIN on the check itself. The voucher helps the lockbox match the payment to your account.

What if my check gets lost in the mail?

The postmark date is what matters. If the postmark shows you mailed the check by the important date, the IRS treats it as on time. If the check never arrives, the IRS will send a notice asking for payment. Respond with proof of the postmark date (the receipt from the post office). For future payments, use electronic payment to avoid this risk.