The IRS does not have a single closing time — it depends on which office you are trying to reach and what you need

The Internal Revenue Service operates multiple offices across the country, and each one keeps different hours. If you are trying to reach a local IRS office in person, most are open Monday through Friday from 9 a.m. to 4 p.m., though some locations open at 8:30 a.m. or close at 5 p.m. The best way to find your specific office's hours is to search for it on IRS.gov using their office locator tool, or call the main IRS line at 1-800-829-1040 to confirm before you go.

The IRS telephone lines close at different times depending on the type of call. The main customer service line (1-800-829-1040) is typically available Monday through Friday, 7 a.m. to 7 p.m. Eastern time. The automated phone system stays open longer than the live representative lines, so you may be able to use the automated system outside those hours to check a refund status or make a payment, but you will not reach a person.

Key Takeaways

  • Most IRS offices are open 9 a.m. to 4 p.m. Monday through Friday, but hours vary by location — check the office locator on IRS.gov or call 1-800-829-1040 to confirm.
  • The main customer service phone line operates 7 a.m. to 7 p.m. Eastern time on weekdays, but the automated system runs longer.
  • The IRS does not staff offices on weekends or federal holidays, and holiday schedules sometimes shift office closures.
  • If you need to file or pay outside business hours, you can use IRS.gov, the IRS2Go mobile app, or mail documents to the address on your notice.

How to find your local IRS office hours

The IRS office locator on IRS.gov lets you search by zip code or city to see which office serves your area and what hours it keeps. Go to IRS.gov, select "Contact Us," then choose "Find a Local Office." Enter your location and the tool will show you the address, phone number, and hours for that office. Some offices are appointment-only, so the locator will tell you whether you can walk in or need to schedule ahead.

If you cannot find the information online or the hours listed seem outdated, call 1-800-829-1040 and a representative can tell you the current hours and whether the office is open on the day you plan to visit. This is especially important around federal holidays, because the IRS sometimes closes offices on days that are not standard holidays, or shifts holiday closures to different dates.

What to do if you need to reach the IRS after hours

The IRS automated phone system is available 24 hours a day, seven days a week. You can use it to check the status of a refund, make a payment, or get information about your account. Call 1-800-829-1040 and follow the prompts to use the automated system. You will not speak to a person, but you can complete many routine tasks without waiting for business hours.

If you need to speak with a representative outside of 7 a.m. to 7 p.m. Eastern time on weekdays, you will have to call back during those hours. The IRS does not offer after-hours live support by phone. However, you can file documents, make payments, or send messages through IRS.gov at any time, and a representative will respond during business hours.

Using IRS.gov and the IRS2Go app outside office hours

You can file tax documents, make payments, and check your account status on IRS.gov 24 hours a day. The website is available every day of the year, including weekends and holidays. You can also download the IRS2Go mobile app to check your refund status, make a payment, or view your tax records from your phone at any time.

If you have a question that requires a written response, you can send a message through your IRS.gov account or mail a letter to the IRS address shown on any notice you received. The IRS will respond during business hours, though response times vary depending on how busy the office is and the complexity of your question.

IRS closures on federal holidays and special dates

The IRS closes all offices on federal holidays, including New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, and Christmas. The phone lines also close on these days. The IRS website and automated phone system remain available on holidays, so you can still file or make a payment if you need to.

In some years, the IRS announces additional closures or shifts holiday schedules. For example, if a holiday falls on a Saturday, the IRS may close on Friday instead. Check the IRS.gov holiday schedule or call 1-800-829-1040 before you plan a visit to an office around a holiday.

Mailing documents to the IRS when offices are closed

If you need to send documents to the IRS and cannot reach an office, you can mail them to the address listed on any notice or bill you received from the IRS. The address varies depending on which IRS office handles your case, so always use the address on your notice rather than a general IRS address. Mail takes time to process, so send documents as early as possible if you have a deadline.

Keep copies of everything you mail and consider using certified mail with return receipt so you have proof the IRS received it. The IRS processes mail during business hours, so documents that arrive on weekends or holidays will be processed the next business day.

Frequently Asked Questions

Can I reach the IRS on Saturday or Sunday?

No, the IRS does not staff offices or answer phones on weekends. The automated phone system and IRS.gov remain available, so you can check your refund status or make a payment, but you cannot speak to a representative. Call back on Monday through Friday during business hours if you need to talk to someone.

What if I need to file my taxes after the office closes?

You can file electronically on IRS.gov or through tax software at any time, 24 hours a day. If you are mailing a paper return, the postmark date matters, not when the IRS receives it, so mail it before the deadline. The IRS will process it when the office opens.

Do all IRS offices keep the same hours?

No. Most offices are open 9 a.m. to 4 p.m. Monday through Friday, but some open earlier or close later. Some offices are appointment-only. Use the office locator on IRS.gov to find the exact hours for the office nearest you.

Can I pay my taxes after the IRS office closes?

Yes. You can make a payment on IRS.gov, through the IRS2Go app, or by phone using the automated system at any time, 24 hours a day. You can also mail a check or money order to the address on your bill, though mail takes time to process.