The IRS has three main ways to contact them: by phone, by mail, or through their website

The fastest route depends on what you need. If you have a simple question about a notice or your account, the IRS phone line is usually quickest — though wait times can run 30 minutes to over an hour during tax season. If you need to send documents or want a written record, mail is slower but creates a paper trail. The IRS website and its online tools handle many tasks without talking to anyone at all.

The IRS phone number is 1-800-829-1040 for individual tax questions. This line is open Monday through Friday, 7 a.m. to 7 p.m. your local time. The IRS also runs specialty lines for businesses, tax professionals, and people with hearing or speech disabilities. Which number you call matters — calling the wrong line wastes time in a queue.

Key Takeaways

  • The main IRS phone line is 1-800-829-1040 for individuals, open Monday through Friday during business hours, with wait times often exceeding one hour during tax season.
  • The IRS website at irs.gov lets you check your refund status, download transcripts, and view notices without calling, which is faster for routine tasks.
  • Mailing documents to the IRS requires using the correct address for your state, which is listed on any notice the IRS sent you or on irs.gov.
  • The IRS Taxpayer Advocate Service is a free option if you have tried contacting the IRS and hit a dead end or face a hardship.

Calling the IRS by phone number

The main line 1-800-829-1040 handles questions about your tax return, refunds, notices, and account balance. Have your Social Security number and tax return handy when you call. The wait time varies wildly — it can be 10 minutes in September or two hours in April. The IRS publishes wait times on its website before you call, so you can decide whether to hold or try again later.

Specialty lines exist for specific situations. If you are a business owner, call 1-800-829-4933. If you are a tax professional or representative, call 1-800-829-7875. If you are deaf or hard of hearing, call 1-800-829-4059 (TTY/TDD). Calling the wrong line means waiting in queue only to be transferred, which adds 15 to 30 minutes to your call.

The IRS does not accept incoming calls outside business hours. If you call after 7 p.m. or on weekends, you will get a message telling you to call back during business hours. There is no callback option — you have to call again yourself.

Using the IRS website to handle tasks online

The IRS website at irs.gov handles many common tasks without a phone call. You can check your refund status using "Where's My Refund?", download tax transcripts, view notices the IRS sent you, and set up a payment plan. These tools are available 24 hours a day, and you get an answer immediately instead of waiting on hold.

To use most IRS online tools, you need to create an account or sign in with an existing one. The IRS accepts logins through ID.me, a third-party identity verification service. You will need your Social Security number, date of birth, and a valid email address. The verification process takes a few minutes and happens only once.

If you have a notice from the IRS, the notice itself usually contains a link to respond online. Many notices now let you reply directly through the IRS website rather than mailing a response back. This is faster and creates a record that the IRS received your reply on a specific date.

Mailing documents to the IRS

If you need to send documents — a check, supporting papers, or a written response to a notice — you must mail them to the correct IRS address for your state. The address is printed on any notice the IRS sent you. If you do not have a notice, go to irs.gov and search "IRS mailing address" to find the address for your state.

Mail takes 1 to 3 weeks to reach the IRS, and processing takes additional time. If you are responding to a notice with a deadline, mail your response at least two weeks before the deadline to leave a buffer. The IRS date-stamps mail when it arrives, so mailing early protects you if there is a delay.

For time-sensitive documents, consider using certified mail with return receipt. This costs a few dollars extra but gives you proof the IRS received your envelope on a specific date. Keep the receipt — if the IRS later claims they never got your documents, the receipt is your evidence.

Using the Taxpayer Advocate Service when you are stuck

The Taxpayer Advocate Service is a free IRS office that helps when you have tried to reach the IRS and hit a wall, or when you face a hardship like a medical emergency or financial crisis. You do not need a lawyer or tax professional to use it. The Advocate Service can contact the IRS on your behalf and push your case forward.

You can reach the Taxpayer Advocate Service by calling 1-877-777-4778 or by mailing Form 911 (Application for Taxpayer Advocate Service) to the IRS address for your state. The phone line is open Monday through Friday, 7 a.m. to 7 p.m. your local time. You will need to explain what you have already tried and why you need help.

The Advocate Service is most useful when the regular IRS line cannot solve your problem, or when the IRS has made an error and is not correcting it. They cannot change tax law or make the IRS forgive a debt you legitimately owe, but they can cut through delays and get someone to actually look at your case.

What to expect when you reach the IRS

When you call, have your Social Security number, the tax year in question, and any notice the IRS sent you ready to share. The representative will ask you to verify your identity — usually your Social Security number and date of birth. They may also ask the last four digits of your spouse's Social Security number if you filed jointly.

The IRS representative can answer questions about your account, explain a notice, help you set up a payment plan, or direct you to forms and publications. They cannot change your tax return after you file it — that requires submitting an amended return on Form 1040-X. They also cannot override tax law or forgive a tax debt you owe, though they can discuss payment options.

If the representative cannot solve your problem on the first call, ask for a case number. Write it down. This number lets you reference your call if you need to call back or escalate the issue. Without a case number, a second call starts from scratch.

Contacting the IRS about a specific notice

If the IRS sent you a notice, that notice contains instructions for responding. Most notices include a phone number, a mailing address, and sometimes an online response option. Follow the instructions on the notice itself rather than calling the main line — the specialty number on your notice will route you to someone who handles that type of case.

The notice also includes a deadline for responding. If you miss the deadline, the IRS may assess additional tax or penalties. If you cannot meet the deadline, call the number on the notice and ask for an extension. The IRS often grants extensions if you ask before the deadline passes.

Keep the notice and any response you send. If you mail a response, keep a copy for your records. If you respond online, print or save a confirmation page. These documents prove you responded and when you responded if a dispute arises later.

Frequently Asked Questions

How long does it take to reach someone at the IRS?

Wait times vary by season and time of day. During tax season (January through April), expect 45 minutes to over two hours. Outside tax season, waits are often 15 to 30 minutes. The IRS publishes current wait times on irs.gov before you call, so you can check before dialing.

Can I schedule an appointment with the IRS instead of calling?

Yes. The IRS has walk-in Taxpayer Assistance Centers in many cities where you can meet with someone in person. Go to irs.gov, search "Taxpayer Assistance Center," and enter your zip code to find the nearest office and hours. You can also call ahead to schedule an appointment at some locations.

What if I cannot reach the IRS and my deadline is passing?

Call the Taxpayer Advocate Service at 1-877-777-4778. Explain that you have tried to reach the IRS and cannot get through, and that a deadline is approaching. The Advocate Service can contact the IRS on your behalf and request an extension of your deadline.

Does the IRS have email support?

The IRS does not accept general email questions. However, if you have a notice from the IRS, that notice may include an email address for that specific case. Some IRS offices also accept secure messages through the online account portal after you log in with ID.me.

What if I need to send something to the IRS but do not know the address?

Check any notice the IRS sent you — the address is printed on it. If you do not have a notice, go to irs.gov and search "IRS mailing address by state." The website lists the correct address for your state. Using the wrong address delays processing.