Where to Send Your IRS Payment and How It Gets Processed
The IRS accepts payments through multiple routes, and where you send it depends on how you want to pay
You do not mail a check to a single IRS address. Instead, the IRS directs payments to different lockbox addresses based on your state and the type of tax you owe. If you owe federal income tax, self-employment tax, or estimated quarterly tax, the mailing address changes by state. The IRS also accepts payments online, by phone, and through your bank's bill pay system — and these routes are often faster and more reliable than mail.
The key is matching your payment method to your situation. If you are mailing a check, you need the correct lockbox for your state. If you want confirmation that the IRS received your payment, electronic methods give you that immediately. If you owe a large amount or have a payment plan, some routes work better than others.
Key Takeaways
- The IRS lockbox address for mailed checks varies by state, and using the wrong address delays processing by weeks.
- Online payment through IRS.gov, by phone, or through your bank's bill pay system all reach the IRS the same day and give you a confirmation number.
- Credit card and debit card payments incur a processing fee (usually 1.87 to 2 percent) that the IRS does not charge for ACH or check payments.
- If you have a payment plan or owe back taxes, paying online or by phone lets you link the payment to your specific tax year and account.
- Mailed payments take 4 to 6 weeks to post to your account, while electronic payments post within one business day.
Finding the correct mailing address for your state
The IRS publishes a state-by-state list of lockbox addresses on its website under "Where to File" for each tax form. The address depends on whether you are filing Form 1040 (individual income tax), Form 1120 (corporate tax), Form 1065 (partnership tax), or another form. If you received a bill or notice from the IRS, the correct mailing address is printed on that document — use that address, not a general one you find online.
Each lockbox is a processing center run by a bank contractor. Mail sent to the wrong lockbox gets forwarded, which adds 2 to 3 weeks to processing time. The IRS does not consider a payment "received" until it arrives at the correct lockbox, so late fees and penalties can accrue if your check arrives after the deadline, even if you mailed it on time.
Write your Social Security number, tax year, and form type on the check itself. Do not staple the check to your return or payment voucher — paper clips only, or send them loose in the same envelope.
Paying online through IRS.gov or a third-party processor
The IRS offers free online payment through its website at IRS.gov under "Payments." You can pay with a bank account (ACH transfer) at no cost, or with a debit or credit card through an approved payment processor. The processor charges a fee — typically 1.87 percent for ACH and 1.87 to 2 percent for card payments — but the IRS itself does not charge anything.
To pay online, you need your Social Security number or employer identification number, the tax year you are paying for, and the amount. The system generates a confirmation number immediately. Your payment posts to your IRS account within one business day. If you are on a payment plan or have multiple years of tax owed, you can direct each payment to a specific tax year during checkout.
The approved payment processors are ACI Payments, Paymentus, and Official Payments. All three are listed on IRS.gov, and all charge similar fees. The IRS does not recommend one over another. Your bank may also offer IRS payment as part of its bill pay service — ask your bank whether it charges a fee on top of the processor fee.
Paying by phone or through your bank's bill pay system
You can call the IRS at 1-800-829-1040 (individual) or 1-800-829-4933 (business) to pay by phone with a debit or credit card. The IRS charges no fee for phone payments, but the card processor does (the same 1.87 to 2 percent as online). You receive a confirmation number by phone and by email if you provide one.
Your bank's bill pay system can also send a check to the IRS on your behalf. Log into your bank account, select "Pay Bills," and enter the correct lockbox address for your state. The bank prints and mails the check, which takes 3 to 5 business days to arrive. This method is free and gives you a record in your bank statement, but it is slower than electronic payment and you do not get a confirmation number from the IRS itself.
Some banks also offer ACH payment directly to the IRS through their bill pay system. Ask your bank whether this option is available. If it is, the payment reaches the IRS the same day and costs nothing.
What happens after you send your payment
Mailed checks take 4 to 6 weeks to post to your IRS account. During that time, the payment is in transit and has not yet been recorded. If you owe penalties or interest, they continue to accrue until the payment posts. Electronic payments (online, by phone, or ACH through your bank) post within one business day.
Once posted, the IRS applies your payment to the tax year and account you specified. If you did not specify a year, the IRS applies it to the oldest tax year you owe. If you are on a payment plan, your payment counts toward that plan and your next due date adjusts accordingly. You can check the status of your payment on IRS.gov under "Where's My Refund?" or by calling the IRS.
If your payment does not post within the expected timeframe, contact the IRS with your confirmation number (if you have one) or your check number and mailing date. The IRS can trace the payment and tell you whether it arrived at the lockbox.
Fees and costs for different payment methods
| Payment Method | IRS Fee | Processor Fee | Processing Time |
|---|---|---|---|
| Mailed check | None | None | 4 to 6 weeks |
| Online ACH (bank account) | None | 1.87% | 1 business day |
| Online debit or credit card | None | 1.87 to 2% | 1 business day |
| Phone payment (card only) | None | 1.87 to 2% | 1 business day |
| Bank bill pay (check) | None | None | 3 to 5 business days (bank), then 4 to 6 weeks (IRS) |
| Bank bill pay (ACH) | None | None | 1 business day |
Paying when you have a payment plan or back taxes
If you have an IRS payment plan (also called an installment agreement), you can still pay online, by phone, or by mail. Your payment counts toward the plan balance. Online and phone payments let you specify which tax year the payment applies to, which is useful if you owe multiple years. Mailed payments are applied to the oldest tax year first unless you write instructions on the check.
If you owe back taxes from multiple years, electronic payment gives you the most control. You can direct $500 to 2022 taxes and $300 to 2023 taxes in separate transactions. With a mailed check, you have to write detailed instructions on the check itself, and there is a risk the IRS will misapply it. If that happens, you have to contact the IRS to correct it, which takes weeks.
If you are in a payment plan and miss a payment, do not wait for a notice. Pay as soon as you can through any method. The sooner the payment posts, the sooner your plan stays in good standing.
Frequently Asked Questions
What if I mail my check to the wrong address?
The check will be forwarded to the correct lockbox, but processing takes an extra 2 to 3 weeks. The IRS does not consider the payment received until it arrives at the correct lockbox, so if the deadline passes before it gets there, you may owe late fees. Always use the address printed on your IRS notice or the state-specific address on IRS.gov.
Can I pay the IRS through PayPal or Venmo?
No. The IRS only accepts payments through its official website, approved payment processors (ACI Payments, Paymentus, Official Payments), phone, mailed check, or your bank's bill pay system. Any other method claiming to send money to the IRS is a scam.
Do I need to include my tax return with my payment?
No. Mail only the payment (check or money order) and a payment voucher if you have one. If you are paying a bill or notice from the IRS, include that notice. Do not send your full tax return with a payment — it will get separated and delayed.
How do I know if the IRS received my mailed check?
Wait 4 to 6 weeks for it to post, then check your account on IRS.gov or call 1-800-829-1040. If you want immediate confirmation, use online payment or phone payment instead — both give you a confirmation number right away.
Can I pay my IRS bill with a credit card to earn rewards points?
Yes, but the processor fee (1.87 to 2 percent) usually costs more than the rewards are worth. On a $5,000 payment, the fee is $94 to $100. Most credit card rewards are 1 to 2 percent back, so you would earn $50 to $100 in rewards but pay $94 to $100 in fees — a net loss or break-even at best.