The main ways to pay federal taxes

You can pay federal income taxes through four channels: the IRS website, your bank's bill pay system, a payment processor the IRS has approved, or by mail with a check or money order. Each method reaches the IRS differently and settles on different timelines. The IRS does not charge a fee for payments made through IRS.gov; approved payment processors charge a convenience fee (usually 1.87% to 2.49% of the amount) if you use their service.

The fastest and most direct route is IRS Direct Pay on IRS.gov, which connects to your bank account and processes the payment within one business day. If you want to use a payment processor instead—because you prefer their interface or want to earn rewards points on a credit card—the IRS maintains a list of approved processors on its website. Your bank's bill pay system works but is slower; the IRS may not receive the payment for several days after you initiate it.

Mailing a check or money order is still valid but takes the longest. The IRS processes mail payments when they physically arrive at the lockbox address (which varies by state), and you should mail at least two weeks before your important date to account for postal delays.

Key Takeaways

  • IRS Direct Pay on IRS.gov is free, requires your bank account number, and settles within one business day.
  • Approved payment processors charge a fee (typically 1.87% to 2.49%) but let you pay with a credit or debit card and may offer rewards.
  • Bank bill pay is free but slower—the IRS may not receive your payment for several days after you send it.
  • Mailed checks and money orders must arrive at the correct lockbox address for your state and should be sent at least two weeks before the important date.
  • The IRS applies payments to your account on the date they receive them, not the date you send them, so timing matters for penalties and interest.

Payment processors the IRS has approved

The IRS publishes a list of approved payment processors on IRS.gov under "Approved Payment Processors." These companies act as intermediaries: you give them your payment information, they charge you a fee, and they transmit the payment to the IRS. The fee is separate from the amount you owe in taxes and is not deductible.

Common approved processors include ACI Payments, Authorize.Net, and PayUSA, though the list changes. Each processor has its own website and user interface. Some offer features like scheduling a payment for a future date, setting up recurring payments, or paying by credit card (which IRS Direct Pay does not allow). The trade-off is the fee: if you owe $5,000 and use a processor charging 2%, you pay $100 extra.

Before you choose a processor, check the current IRS list to confirm it is still approved. A processor that was approved last year may no longer be on the list. You can also call the IRS at 1-800-829-1040 to ask which processors are currently active.

Using your bank's bill pay system

Most banks and credit unions offer bill pay, which lets you send money to any recipient—including the IRS—from your checking account. You enter the IRS's mailing address as the payee, write the check amount, and schedule the payment. The bank prints and mails a check on your behalf, or in some cases transmits the payment electronically.

The advantage is simplicity: if you already use your bank's bill pay for other bills, you do not need to learn a new system or visit a different website. The disadvantage is timing. Your bank may take one to three business days to process the payment after you schedule it, and then the check travels through the mail. The IRS does not receive the payment until it arrives at the lockbox, which can be five to ten business days after you initiate the transaction.

If you use bank bill pay, schedule it earlier than you would with IRS Direct Pay. The IRS applies the payment on the date it receives it, not the date your bank sends it. If your important date is April 15 and you schedule a bill pay payment on April 10, the IRS may not receive it until April 18 or later, which means you are late and subject to penalties.

Mailing a check or money order

You can mail a check or money order to the IRS, but you must send it to the correct lockbox address for your state. The IRS maintains different addresses for different regions. You can find your state's address on IRS.gov or by calling 1-800-829-1040. The envelope must include your name, address, Social Security number or employer identification number, the tax year, and the form you are filing (for example, Form 1040 for individual income tax).

Mail payments are processed when the IRS receives them, not when you mail them. You should mail at least two weeks before your important date to account for postal delays. If the important date falls on a weekend or holiday, the IRS extends it to the next business day, but that extension does not explore to mailed payments—the IRS still processes them based on the date received. A check that arrives on April 17 is late, even if April 15 was a Sunday.

Money orders are safer than checks if you are concerned about the payment being lost or stolen in the mail, but they cost a small fee (usually $1 to $5) and take the same amount of time to process.

Payment timing and when the IRS records your payment

The date the IRS receives your payment, not the date you send it, is what matters for penalties and interest. If you owe taxes on April 15 and you mail a check on April 10, but the IRS does not receive it until April 20, you are five days late. The IRS will charge you a failure-to-pay penalty (usually 0.5% of the unpaid tax per month, up to 25%) and interest (currently 8% per year, compounded daily).

IRS Direct Pay is the fastest: the payment settles within one business day, so if you pay on April 14, the IRS records it on April 15 (or the next business day if April 15 is a weekend). Approved payment processors typically settle within one to two business days. Bank bill pay can take five to ten business days. Mailed checks can take two to three weeks.

If you are close to a important date and unsure whether your payment will arrive in time, use IRS Direct Pay. If you have already missed the important date, pay as soon as possible anyway—the sooner you pay, the less interest accrues.

State and local tax payments

State income tax and local tax payments work differently from federal taxes. Each state and locality runs its own payment system. Some states use a centralized website similar to IRS.gov; others require you to mail a check or use an approved processor. A few states do not have income tax at all.

To find your state's payment method, search "[your state] income tax payment" or visit your state's department of revenue website. Local taxes (city or county income tax, if your area has them) are usually handled through your city or county's tax office. The payment methods, important date, and penalties vary by location.

If you owe both federal and state taxes, do not assume the payment methods are the same. You may pay federal taxes through IRS Direct Pay and state taxes through your state's website, and the important date may differ by a few days.

What to do if you cannot pay by the important date

If you cannot pay your full tax bill by the important date, you have options that do not involve waiting until you have the money. You can file your return on time and pay what you can, then set up a payment plan with the IRS for the remainder. You can also request a short-term extension (up to 120 days) to pay without a payment plan, though interest and penalties still accrue during that time.

The IRS offers two types of payment plans: a short-term plan (up to 120 days, no setup fee) and a long-term installment plan (up to 72 months, with a setup fee of $31 to $225 depending on how you set it up). You can request a payment plan on IRS.gov, by phone, or by mail. If you set up an installment plan, you make monthly payments until the balance is paid off.

Filing on time and paying late is better than filing late and paying late. If you file late, the failure-to-file penalty (usually 5% per month, up to 25%) is steeper than the failure-to-pay penalty. If you cannot file on time, you can request an extension to file (not to pay), which gives you six additional months to submit your return.

Frequently Asked Questions

Can I pay my taxes with a credit card?

You can pay federal taxes with a credit card only through an approved payment processor, not through IRS Direct Pay. The processor charges a fee (typically 1.87% to 2.49%), which you pay in addition to your tax bill. Your credit card company may also charge you a cash advance fee if they classify the payment as a cash advance rather than a purchase—check with your card issuer first.

What happens if I pay the IRS twice by accident?

The IRS will credit the overpayment to your next tax bill or issue you a refund, depending on what you request. You can claim the overpayment on your next return or ask the IRS to refund it directly to your bank account. If you realize the duplicate payment quickly, contact the IRS at 1-800-829-1040 to report it and ask them to reverse one of the payments before it settles.

Is there a maximum amount I can pay through IRS Direct Pay?

IRS Direct Pay has no stated maximum, but your bank may have limits on the size of a single transaction. Check with your bank before attempting a very large payment. If your bank declines the transaction, you can split it into multiple payments or use an approved payment processor instead.

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

You do not need a voucher, but including one helps the IRS process your payment faster. You can print Form 1040-ES (Estimated Tax Payment Voucher) or Form 1040-V (Payment Voucher) from IRS.gov and mail it with your check. Write your Social Security number, tax year, and form type on the check itself if you do not include a voucher.

What if the IRS lockbox address I used is wrong?

If your check arrives at the wrong address, it may be returned to you or processed slowly. Contact the IRS at 1-800-829-1040 with your check number and amount, and ask them to help locate it. If the check is lost, you can stop payment through your bank and mail a new check to the correct address, or use IRS Direct Pay to make the payment when ready.