What Your IRS Appointment Number Means and How to Use It

Your IRS appointment number is a confirmation code the IRS gives you when you book an in-person or phone appointment at a local IRS office

When you schedule an appointment through the IRS website, by phone, or in person, you receive an appointment number — a unique identifier that confirms your slot. This number is not the same as your Social Security number, tax ID, or case number. You need it to reschedule, cancel, or verify that your appointment is still on the calendar.

The IRS sends your appointment number in a confirmation email or letter, depending on how you booked. If you scheduled online through IRS.gov, check your email inbox and spam folder for the confirmation. If you called or walked in, you should have received a printed confirmation slip with the number on it.

Key Takeaways

• Your appointment number appears on your IRS confirmation email or printed slip and proves you have a scheduled time slot.
• You must bring your appointment number, a valid photo ID, and any documents related to your tax issue when you arrive at the IRS office.
• If you need to reschedule or cancel, use your appointment number when you contact the IRS — it speeds up the process and prevents confusion.
• The IRS may contact you before your appointment using the phone number or email you provided during booking, so keep that contact information current.

Where to find your appointment number

If you booked online through IRS.gov, your confirmation email contains the appointment number in the subject line or body. The email comes from an IRS address and includes your appointment date, time, and location. Save this email or print it — you will need it the day of your appointment.

If you called the IRS at 1-800-829-1040 to schedule, the representative should have given you the number verbally and sent a confirmation letter by mail within a few days. If you did not receive a letter within two weeks, call back with your Social Security number and the approximate date you booked to request a new confirmation.

If you walked into a local IRS office to schedule, you received a printed slip on the spot. That slip has your appointment number, date, and time. Keep it in a safe place — you cannot reschedule without it.

What to bring to your appointment

Bring your appointment number along with a valid photo ID — a driver's license, passport, or state ID card. The IRS agent will check both before you sit down. Without your appointment number, the agent has to look you up by name and Social Security number, which takes longer and can cause delays if there are name changes or multiple accounts in the system.

Also bring any documents related to why you are there: tax returns, notices from the IRS, bank statements, receipts, or correspondence about your account. The IRS office staff cannot pull up your full file on the spot, so having the papers with you lets the agent help you faster. If you are unsure what to bring, call 1-800-829-1040 before your appointment and describe your issue — the representative can tell you exactly what documents matter.

How to reschedule or cancel using your appointment number

If you need to change your appointment, go to IRS.gov and log into your account, or call 1-800-829-1040. Have your appointment number ready. The IRS system can pull up your slot when ready when you provide the number, so you can reschedule to a different date or time without starting from scratch.

If you cancel without rescheduling, the IRS may send you a notice asking why you did not show up. Cancelling in advance prevents that and frees the time slot for someone else. If you miss an appointment without cancelling, the IRS may close your case or require you to restart the process.

What happens if you lose your appointment number

If you cannot find your confirmation email or printed slip, call 1-800-829-1040 with your Social Security number and the name of the IRS office where you are scheduled. The representative can look up your appointment and give you the number over the phone. They can also confirm the date and time so you do not show up on the wrong day.

If you booked online and lost the email, check your email account's trash or spam folder first — confirmation emails sometimes get filtered. If it is not there, log back into IRS.gov with the same account you used to book. Your appointment history should show under your profile, along with the number.

Common mistakes to avoid

Do not confuse your appointment number with your case number or notice number. The IRS sends different numbers for different purposes. Your appointment number is only for that specific in-person or phone appointment. If an IRS letter mentions a case number, that is separate and goes on correspondence about your account.

Do not assume your appointment is confirmed just because you booked it weeks ago. The IRS sometimes cancels appointments if offices close for staffing or weather. Check your email or call 1-800-829-1040 a few days before your appointment to confirm it is still on. If the office cancelled, the IRS will offer you a new time slot.

Do not show up without your appointment number. The IRS office staff can still help you, but it takes longer because they have to search your account manually. Bringing the number is the fastest way to get seen on time.

Frequently Asked Questions

Can I use my appointment number to check the status of my tax return?

No. Your appointment number is only for that specific appointment. To check your return status, use the IRS Where's My Refund tool on IRS.gov or call 1-800-829-1040. You will need your Social Security number, filing status, and the refund amount.

What if the IRS calls me before my appointment?

The IRS may call to confirm you are still coming or to ask you to bring additional documents. Answer the call if you can, or call back using the number on the message. Have your appointment number handy so the representative can pull up your file quickly.

Is my appointment number the same as my taxpayer identification number?

No. Your appointment number is temporary and only for that one appointment. Your taxpayer identification number is your Social Security number or Employer Identification Number, which stays the same for all IRS business. Never share your appointment number with anyone except IRS staff.

Can I reschedule my appointment online?

Yes, if you booked online through IRS.gov, you can log back in and reschedule through your account. You can also call 1-800-829-1040 with your appointment number. Phone rescheduling works whether you booked online or by phone originally.

What if I show up late to my appointment?

Call the IRS office directly as soon as you know you will be late. The office may still see you if they have time, or they may reschedule you. Showing up more than 15 minutes late often results in a cancellation, so calling ahead gives you the best chance of being seen that day.