Mail your return to the IRS service center for your state

The IRS does not have one central address. Instead, you mail your paper return to a regional service center based on where you live. The address you use depends on your state and whether you are enclosing a payment or a refund request. Using the wrong address delays processing by weeks or months.

The IRS publishes the correct mailing address for your state in the instructions that come with your tax form — usually the 1040 instruction booklet. You can also find it on the IRS website by searching for "where to file" along with your state name. The address changes occasionally, so check the current year's instructions rather than using an old envelope.

Key Takeaways

  • Each state has its own IRS service center address, and using the wrong one delays your return by several weeks.
  • The correct address appears in your tax form's instruction booklet and on the IRS website — do not use an address from a previous year.
  • If you are enclosing a payment, some states have a different address than if you are not enclosing money.
  • Mail your return early enough that it arrives by the filing deadline, since postmark date counts but arrival date does not.
  • The IRS recommends sending your return by certified mail so you have proof of when it was mailed.

How to find your state's mailing address

Open the instruction booklet for the form you are filing — usually Form 1040 for individual returns. Near the back, there is a section titled "Where to File" or "Mailing Addresses." This section lists addresses by state and sometimes by region within a state.

The instructions also note whether the address changes based on what you are sending. For example, if you are mailing a check with your return, the address might be different than if you are not enclosing payment. Read the instructions carefully to make sure you have the right address for your situation.

If you do not have the instruction booklet, you can find the addresses on the IRS website at irs.gov. Search for "where to file" and your state name. The IRS also publishes a full list of all service center addresses on their filing instructions page.

Mailing with or without a payment

Some IRS service centers use one address for returns with payment and a different address for returns without payment. This separation helps the IRS route checks and money orders to the right processing center.

Check your tax form's instructions to see whether your state has separate addresses. If it does, use the address marked for returns with payment if you are enclosing a check or money order. Use the address marked for returns without payment if you owe nothing or are expecting a refund.

Using the wrong address does not cause the IRS to reject your return, but it will be rerouted, which adds two to four weeks to processing time.

Timing your mailing to meet the deadline

The IRS counts the postmark date on your envelope, not the date the return arrives at the service center. This means you can mail your return a few days before the deadline and still be on time, as long as the post office postmarks it by midnight on the filing deadline.

However, you should mail your return at least one week before the deadline to account for mail delays. The Postal Service does not may provide delivery dates for standard mail, and returns that arrive late are subject to penalties even if they were mailed on time.

If you are mailing close to the deadline, consider using certified mail or Priority Mail Express. These services provide tracking and proof of mailing, which protects you if the return is lost in transit.

Using certified mail for proof of mailing

The IRS recommends sending your return by certified mail with return receipt requested. This service costs a few dollars but gives you a receipt showing the date and time the post office accepted your envelope. If the IRS later claims they never received your return, you have proof of when you mailed it.

Certified mail is not required, but it is useful protection if you are mailing close to the deadline or if your return contains sensitive information. You can purchase certified mail service at any post office when you mail your return.

Keep your certified mail receipt until you receive confirmation that the IRS processed your return. The IRS typically sends this confirmation by mail within four to six weeks of receiving your return.

What to include in your envelope

Include your completed tax form, all required schedules, and any supporting documents the form asks for. Do not staple or tape pages together — the IRS prefers that pages be loose or held together with a paper clip.

If you are enclosing a payment, write a check or money order payable to "United States Treasury." Do not send cash. Write your Social Security number, the tax year, and the form number on the check so the IRS can match it to your return.

Do not send original documents such as W-2s or 1099s unless the form specifically asks for them. The IRS keeps these documents for its records and does not return them. Keep copies for your own records.

What happens after you mail your return

The IRS typically receives paper returns within one to two weeks of mailing. Processing takes an additional four to eight weeks, depending on the complexity of your return and the current volume at the service center.

If you are owed a refund, the IRS will mail a check to the address on your return. Refunds by mail usually arrive four to six weeks after the IRS processes your return. If you provided a bank account number for direct deposit, the refund will be deposited instead, which is faster.

If you owe taxes, the IRS will send you a bill. Pay the bill by the date shown to avoid penalties and interest charges.

Frequently Asked Questions

Can I mail my return to any IRS office?

No. You must use the service center address for your state. Mailing to the wrong address causes delays of several weeks. The correct address is in your tax form's instruction booklet or on the IRS website.

What if I mail my return but the IRS says they never received it?

If you mailed by certified mail, show the IRS your receipt. The postmark date on the receipt proves you mailed on time. If you mailed by regular mail and cannot prove the date, the IRS may assess penalties. This is why certified mail is recommended for returns mailed close to the deadline.

Is it faster to mail my return or file online?

Filing online is much faster. Paper returns take four to eight weeks to process, while e-filed returns are processed within two to three weeks. If you are owed a refund, e-filing with direct deposit gets your money to your bank account in about two weeks.

Do I have to mail my return, or can I use a tax preparation service?

You do not have to mail it yourself. Tax preparation services and tax software can file your return electronically on your behalf. This is faster and more secure than mailing a paper return. You can also file online for free through the IRS Free File program if your income is below a certain threshold.

What if my state's address is different from the federal address?

You are mailing your federal return to the IRS service center, not to your state. Your state tax return, if required, goes to a separate state address. Check your state tax form's instructions for the correct state mailing address.