Send estimated tax payments to the IRS, not your state tax agency

Estimated tax payments go to the Internal Revenue Service (IRS), the federal tax authority. You do not send them to your state tax department, even if you owe state estimated taxes as well. The IRS has three ways to receive your payment: by mail, by electronic transfer, or through their online payment portal. Which method you use depends on how quickly you need to pay and whether you want a paper record.

If you also owe estimated taxes to your state, you will send those separately to your state's tax agency using that state's own payment system. State payments follow different schedules and use different addresses or portals than federal payments.

Key Takeaways

  • Federal estimated tax payments go to the IRS, and state estimated taxes go to your state tax department—they are separate transactions.
  • The IRS accepts payments by mail to a lockbox address, by electronic transfer through their website, or through third-party payment processors.
  • The correct mailing address depends on which state you live in, because the IRS uses different lockbox addresses by region.
  • Electronic payment through IRS Direct Pay or the Electronic Federal Tax Payment System (EFTPS) is faster and gives you immediate confirmation.
  • If you pay by mail, send your payment at least one week before the due date to ensure it arrives on time.

Mailing your payment to the IRS lockbox

If you pay by mail, you send your check or money order to an IRS lockbox—a secure processing center, not a regular post office. The address depends on which state you live in. The IRS publishes the correct lockbox address for your state on Form 1040-ES, the form that comes with estimated tax payment vouchers.

You must include a payment voucher with your check. If you are using Form 1040-ES, tear off the voucher that matches the quarter you are paying for and write your Social Security number or Employer Identification Number (EIN) on it. Mail the voucher and your check together. Without the voucher, the IRS may not know which tax year or quarter your payment is for.

Mail your payment at least seven to ten days before the due date. The IRS processes mail payments by the postmark date, but delays in mail delivery can cause your payment to arrive late. If your payment arrives after the due date, you may owe penalties and interest, even if you mailed it on time.

Paying electronically through IRS Direct Pay

IRS Direct Pay is the fastest way to send an estimated tax payment. You go to the IRS website, enter your payment information, and the money transfers directly from your bank account to the IRS. The system confirms your payment immediately and gives you a confirmation number you can save as proof.

To use Direct Pay, you need your Social Security number or EIN, your bank account and routing number, and the amount you want to pay. You can schedule a payment up to 120 days in advance, which is useful if you want to set up all four quarterly payments at once. There is no fee to use Direct Pay.

Direct Pay processes payments the same day if you submit before 8 p.m. Eastern time on a business day. If you submit after 8 p.m. or on a weekend or holiday, the payment processes the next business day. You can check the status of your payment on the IRS website using your confirmation number.

Using the Electronic Federal Tax Payment System (EFTPS)

The Electronic Federal Tax Payment System (EFTPS) is another electronic option run by the U.S. Department of the Treasury. It works similarly to Direct Pay but requires you to enroll first, which takes one to two weeks. Once enrolled, you can make payments through the EFTPS website or by phone.

EFTPS is often used by businesses and self-employed people who make multiple tax payments throughout the year. You can set up recurring payments so that the same amount transfers on the same date each quarter. Like Direct Pay, EFTPS has no fee and processes payments the same day if submitted before the deadline.

If you have already enrolled in EFTPS for other tax payments, you can use the same account for estimated taxes. If you are new to EFTPS, you can enroll on the Treasury website, but plan ahead because the enrollment process takes time.

Paying through a third-party payment processor

The IRS also allows you to pay through approved third-party payment processors. These are private companies that handle the transaction between you and the IRS. Common processors include PayPal, Stripe, and various tax software companies. When you use a processor, the money still goes to the IRS, but the processor may charge a convenience fee—usually between 1 and 2 percent of your payment.

Third-party processors are useful if you want to pay by credit card or debit card, since Direct Pay and EFTPS only accept bank transfers. However, the convenience fee means you pay more than you would through Direct Pay or EFTPS. You receive a confirmation number from the processor, which you should keep as proof of payment.

Before using a processor, check that it is on the IRS's official list of approved payment providers. Scams exist that pose as IRS payment sites but are actually designed to steal your financial information. The real IRS payment options are listed on IRS.gov under "Pay Your Tax Bill."

State estimated tax payments go to a different address

If you owe state estimated taxes, you send those to your state's tax agency, not to the IRS. Each state has its own payment system, due dates, and mailing addresses. Some states use online portals similar to the IRS; others accept only mail or phone payments.

To find your state's payment method, search for "[your state] estimated tax payment" on your state's tax department website. Most state tax agencies publish a list of payment options and the correct mailing address if you choose to pay by mail. Some states allow you to pay through their online portal, and some allow payment through third-party processors.

State estimated tax due dates do not always match federal due dates. Some states follow the same quarterly schedule as the IRS (April 15, June 15, September 15, and January 15), while others use different dates. Check your state's tax calendar to avoid missing a deadline.

What to do if you are unsure about the correct address

If you cannot find the correct lockbox address or are unsure which payment method to use, call the IRS at 1-800-829-1040. The IRS can confirm the address for your state and answer questions about payment methods. Have your Social Security number or EIN ready when you call.

You can also download Form 1040-ES directly from IRS.gov. The form includes the lockbox addresses for all states and instructions for each payment method. If you are using tax software to file your return, the software often has a built-in payment option that routes your payment to the correct address automatically.

If you have already sent a payment and are not sure whether it was received, you can check the status on IRS.gov using your confirmation number or by calling the IRS. Do not send a second payment until you have confirmed that the first one did not arrive.

Frequently Asked Questions

Can I pay my estimated taxes by credit card?

Yes, but only through a third-party payment processor, and the processor will charge a fee of 1 to 2 percent. Direct Pay and EFTPS accept only bank transfers. If you want to avoid the fee, use Direct Pay or EFTPS instead.

What happens if I mail my payment late?

If your payment arrives after the due date, you will owe penalties and interest on the unpaid amount, even if you mailed it on time. The IRS goes by the postmark date, so mail your payment at least one week early. If you miss a deadline, pay as soon as possible to minimize the penalty.

Do I need to include a voucher if I pay electronically?

No. Electronic payments through Direct Pay, EFTPS, or approved processors do not require a voucher. The IRS receives your payment information electronically and matches it to your account automatically. Keep your confirmation number as proof.

Can I change my payment method after I have already sent a payment?

Yes. You can use a different method for each quarterly payment. If you mailed your first payment, you can use Direct Pay for the second. Just make sure you do not double-pay by accident—confirm that your first payment was received before sending a second one.

What if I overpay my estimated taxes?

If you pay more than you owe, the IRS will either refund the overpayment or credit it toward your next tax bill. You can choose which option you prefer when you file your annual return. Keep your payment confirmation in case you need to prove the amount you paid.