The IRS uses the address from your most recently filed and processed federal tax return as the address it has on file for you. That becomes your “last known address,” and it controls where every piece of official mail goes: balance-due notices, audit letters, Collection Due Process notices, and paper refund checks.1Taxpayer Advocate Service. 90-Day Notice of Deficiency If you’ve moved since you last filed and haven’t told the IRS directly, there’s a good chance important mail is going somewhere you can’t see it.
How to Check the Address the IRS Has for You
The fastest way to look is through your IRS Online Account at irs.gov. After you verify your identity, you can view your tax records and account details. The Online Account doesn’t currently let you change your address, but it will show you what’s there.2Internal Revenue Service. Address Changes
For a more definitive confirmation, request a tax transcript by mail. Call the automated transcript line at 800-908-9946 or use the “Get Transcript by Mail” tool on the IRS website. The transcript will only be mailed to the address the IRS currently has for you, so receiving it at your current home is itself proof the records match.3Internal Revenue Service. Get Your Tax Records and Transcripts It usually arrives within five to ten calendar days. For security, the transcript partially masks your street address and shows only the first six characters.4Internal Revenue Service. About Tax Transcripts
Any recent IRS letter or prior-year refund check also shows the address the agency used. If it’s an old one, that’s a strong signal the file needs updating.
Why USPS Mail Forwarding Isn’t Enough
Filing a change of address with the U.S. Postal Service does not reliably update your IRS records. The IRS may pick up your new address from the USPS National Change of Address database, but the agency’s own guidance warns that not all post offices forward government mail and that you should still notify the IRS directly.2Internal Revenue Service. Address Changes USPS forwarding also expires after about 12 months. Anything the IRS sends after that simply bounces back undelivered, and your address of record still points to the old place.
Ways to Update Your Address With the IRS
Pick one of these channels and actually complete it. Intending to update is not the same as updating.
File Form 8822
Form 8822, Change of Address, is the dedicated form for individuals. You’ll supply your old and new addresses, your name, and your Social Security number or ITIN. If you filed jointly and are still living with your spouse, both of you must sign.5Internal Revenue Service. About Form 8822, Change of Address Businesses use Form 8822-B instead. Where you mail the form depends on the state of your old address; the instructions have the routing table.6Internal Revenue Service. Form 8822, Change of Address Processing takes four to six weeks from the date the IRS receives the form.
Put the New Address on Your Next Return
If you’re about to file, just enter the new address on your Form 1040. The IRS updates its records automatically when the return processes.2Internal Revenue Service. Address Changes This only works if your next return is coming soon. If it’s months away and you’re expecting mail from the IRS, don’t wait.
Send a Signed Written Statement
Instead of Form 8822, you can mail a signed letter with your full name, Social Security number or ITIN, old address, and new address. Send it to the IRS service center where you filed your most recent return.2Internal Revenue Service. Address Changes
Call the IRS
You can request an address change by phone at 800-829-1040, available 7 a.m. to 7 p.m. local time.7Internal Revenue Service. Let Us Help You The agent will verify your identity using your name, old and new addresses, and your SSN, ITIN, or EIN, and may ask you to confirm details from a prior-year return. This is the fastest option when the change needs to take effect immediately, such as during an audit or collection matter.8Internal Revenue Service. Address Changes
Tell the Office Handling Your Case
If you have an open matter at the IRS, whether an audit, a collection action, or an appeal, give the new address directly to the employee or office working the case. That updates your file inside that department while the case is active.
Joint Filers, Military, and Foreign Addresses
Joint Filers Who Now Live Apart
If you filed a joint return and you and your spouse no longer share an address, each of you needs to notify the IRS separately with your own new address.2Internal Revenue Service. Address Changes The IRS may need to send notices to each spouse individually during collection or examination, and one spouse updating alone doesn’t move the other’s record.
Military Addresses
If you use an APO, FPO, or DPO address, enter that designation in the city field on your return or Form 8822, use the correct military state abbreviation (AA, AE, or AP), and leave the foreign country fields blank.9Internal Revenue Service. Free File Fillable Forms: Military and International Filers APO, FPO, and DPO addresses are treated as domestic, so the 90-day Tax Court petition deadline applies, not the 150-day period for foreign addresses.
Foreign Addresses
Form 8822 has dedicated fields for a foreign country name, province, and postal code. Spell the country out without abbreviating, and follow local customs for the postal code.6Internal Revenue Service. Form 8822, Change of Address Form 8822 submissions from foreign addresses, APO/FPO addresses, or filers of Form 2555 all go to the Austin, TX service center.
Keep Proof That You Submitted the Change
If the IRS later says it mailed a notice to your last known address and you say you moved, the burden is on you to prove you told them. A Form 8822 or letter dropped in a regular envelope gives you no proof of delivery. Send it by certified mail with a return receipt, which gives you a postmark date and a signed confirmation of delivery.10Taxpayer Advocate Service. Taxpayer Mails Return An IRS-designated private delivery service works too. Keep the receipt indefinitely; the disputes where this matters often don’t surface for years.
What Goes Wrong When the IRS Has the Wrong Address
A stale address isn’t just an inconvenience. It can cost you legal rights you can’t get back.
The 90-Day Notice of Deficiency
When the IRS determines you owe additional tax, it must send a formal notice of deficiency, often called a “90-day letter,” by certified mail to your last known address.11Office of the Law Revision Counsel. 26 U.S. Code 6212 – Notice of Deficiency That notice is your right to challenge the calculation in Tax Court without paying first. You have 90 days from the mailing date to file a petition, or 150 days if the notice is sent to an address outside the United States.12Office of the Law Revision Counsel. 26 U.S. Code 6213 – Restrictions Applicable to Deficiencies; Petition to Tax Court
The clock starts when the IRS mails the notice, not when you read it. If it goes to an old address, the 90 days pass while you know nothing about it. After that, the tax is assessed, and your only path is to pay the full amount and sue for a refund in federal court.13Internal Revenue Service. 4.8.9 Statutory Notices of Deficiency
Collection Notices and Levies
Before the IRS can seize wages or bank accounts, it must send a Collection Due Process notice offering you a hearing. That notice also goes to your last known address. If it lands at an outdated one and you never see it, the IRS may still proceed with the levy.14Internal Revenue Service. Collection Appeal Rights A CDP notice sent to the wrong address is technically invalid and the IRS is supposed to reissue it, but sorting that out after your account has been frozen can take months.
Penalties, Interest, and Undelivered Refund Checks
Notices you never see keep accruing penalties and interest in the background. A balance you would have paid at $800 can grow into a several-thousand-dollar problem by the time you find out about it.
Paper refund checks are their own headache. If a check goes to an old address and the post office returns it, the check is canceled and the money goes back to your account as a credit. You can ask for a reissue after providing the correct address, and expect the replacement check within about four weeks. Refund checks expire 12 months after the issue date. If you inquire within seven years, the IRS can still reissue after additional processing; beyond seven years, the refund can’t be reissued at all.15Internal Revenue Service. 21.4.3 Returned Refunds/Releases Signing up for direct deposit on future returns removes this problem entirely.
If the Address on File Isn’t One You Recognize
If you check your records and see an address you’ve never used, someone may have filed a fraudulent return under your Social Security number and pointed the refund somewhere else. Call the IRS identity theft line at 800-908-4490 and file Form 14039, Identity Theft Affidavit, to flag your account.16Internal Revenue Service. Reporting Identity Theft
As a preventive step, enroll in the IRS Identity Protection PIN program through your Online Account. The IP PIN is a six-digit number that changes each year and must appear on any federal return filed under your Social Security number. Without it, a fraudulent return will be rejected before it can change your address of record.17Internal Revenue Service. Frequently Asked Questions About the Identity Protection Personal Identification Number (IP PIN)