
The Internal Revenue Service is an important US Government agency for collection of revenue. This agency works under the Department of the Treasury. This department is headed by the Internal Revenue Commissioner. The post is filled by the order of the President of the US with a term of 5 years.
IRS offer various customer service numbers for the US citizens. So, let’s explore different ways to contact IRS (The Internal Revenue Service), including phone number, email address, and more.

IRS Headquarters Contact Details
IRS headquarters is located in Washington DC, full contact address is: 1111 Constitution Avenue, Northwest, Corner of 12th Street, Washington DC, United States.
IRS International Taxpayer Service Call Center
IRS operates different International services for persons or business accounts related questions. If you are looking for their contact numbers, please check below:
- Telephone: 267-941-1000 (not toll-free)
- Fax: 267-466-1055 (for international tax account issues only)
Please dial 512-416-7750 (e-help office in Austin) if you are facing an issue related to e-file. Only applicable to tax professional or software provider callers.
IRS Mailing Address for People Outside US
If you are an individual taxpayer located outside the US and want to contact IRS, please use following mailing address (postal address):
Internal Revenue Service
International Accounts
Philadelphia, PA 19255-0725
If you are a business taxpayer located outside the United States, please contact the IRS through the mail:
Internal Revenue Service
International Accounts
Ogden, UT 84201-0038
IRS Toll Free Number for Puerto Rico and the US Virgin Islands
If you are living in the states of US Virgin Islands and Puerto Rico, your IRS toll free is, 800-829-1040. This line is available from 7am to 10pm, Monday to Friday).
International Taxpayer Advocate Assistance
If you are looking for assistance from legal advocate regarding IRS service, please dial the below IRS toll-free numbers which are of Taxpayer Advocate Service:
- 787-522-8600 – Spanish
- 787-522-8601 – English
- 855-818-5697 – Fax.
Important IRS Phone Numbers
IRS average waiting time for phone between January to April (filing season) is 15 minutes (telephone service). A few telephone lines may have longer waiting period. Based on data, Monday and Tuesday both days may have higher waiting time than usual.
From May to December (post-filing season), an average waiting is 27-minute. A few lines may have longer waiting period. Monday and Tuesday both days may have higher waiting period.
- For Individuals: 800-829-1040 (Available from 7am to 7pm, local time)
- For Callers who are hearing impaired: TTY/TDD 800-829-4059
- For Excise taxes: 866-699-4096 (Available from 8am to 6pm, Eastern time)
- For Estate and gift taxes (Form 706/709): 866-699-4083 (Available from 8am to 3.30pm, Eastern Time)
- For Business: 800-829-4933 (Available from 7am to 7pm, local time)
- For Non-profit taxes: 877-829-5500 (Available from 8am to 5pm, local time)
In-person (Face to Face) Meeting for Help
If you are looking for face to face (in-person, personal meeting) with IRS, please schedule your appointment well in advance. To schedule an appointment, please call 844-545-5640 for appointment.
E-Desk Helpline Number
If you are looking for more information about Partnerships (Forms 1065, 1065-B), please contact e-help Desk by calling at 1-866-255-0654.
If you are a corporate taxpayers and looking for more information, please dial e-help Desk at 1-866-255-0654.
If you are a taxpayer and have tax law questions (when you have taxpayers account), please call 1-800-829-4933.
If you are a tax practitioner and have tax law questions (when you have tax practitioners account), please call 1-800-829-8374.
If you are looking for help related to e-filing (applicable to only software developers and vendors), please dial e-help Desk at 1-866-255-0654.
Federal State Local Employment Tax (FSLET) Customer Services
If you are looking for help and guide and this is related to government entities, such as request for private letter ruling, account-related questions, or request for a government information letter, please dial (877) 829-5500 (Toll-free number).
Technical Services Operation (TSO)
This service is available to employers, payers, and transmitters. This helpline is available to solve your questions and queries related to the technical matter for e-filing through the FIRE system. Please reach out at the following phone numbers / toll free.
- 304-579-4827 Telecommunications Device for the Deaf (TDD)
- 866-455-7438 Toll-free
- 304-263-8700 International.
Form W-2 or a Form 1099 Helpline Number (Toll-free) for Individuals
If you are an individual and looking for help related to Form W-2 or a Form 1099, please dial this toll-free number 1-800-829-1040.
IRS Toll Free Helpline Number for Government Entities
If you are a Government entity and have questions related to your account, you can contact at the Customer Account Services toll-free numbers given above. If your questions are related to Federal tax, please call at 1-800-829-1040. This is a toll-free number.
Related Article: Best Ways to Contact the President of the United States
IRS.gov Website Helpline Number
If you are struggling in finding accurate information on the official website of the Internal Revenue Service, please dial 1-800-TAX-FORM (1-800-829-3676). This helpline is useful for solving your questions related to downloading forms, and publications.
IRS.gov Help Desk for US, Canada, and International Callers
If you are looking for help regarding IRS.gov website or other query, please dial this number 800-876-1715 (when dialling from US or Canada), OR 915-342-5654 (for International callers). This line is available from 8am to 8pm, Eastern Time, Monday to Friday.
IRS TeleTax Number (Recorded Messages for 100+ Tax Topics)
If you are looking for helpline from IRS.gov and have topics such as “Education Credits”, “Who must file?”, “Earned Income Tax Credit”, “Highlights of Tax Changes”, “Individual Retirement Accounts”, and such other questions, please dial 1-800-829-4477.
IRS Email Contacts
If you are looking for important email address of the Internal Revenue Services, please find it below:
- Report Phishing Emails to: phishing@irs.gov
Article first published on March 26, 2020.