Internal Revenue Service (IRS) Customer Service Phone Number & Contact Information
Looking for the best way to contact Internal Revenue Service (IRS) and reach a live agent? Find the official primary customer service phone number and direct contact details. Get fast help with account inquiries, billing, technical support, and general assistance from a live representative.
Editorial note: DialIndex curates publicly listed customer service contact details and links back to official company websites when available. Always verify time-sensitive details on the official source before calling.
Last verified: 16 Mar 2026
How to Contact Internal Revenue Service (IRS)
The Internal Revenue Service (IRS) is the United States government agency responsible for the collection of taxes and the enforcement of tax laws. Part of the Department of the Treasury, the IRS handles personal and corporate income taxes, excise taxes, and gift/estate taxes. In 2026, the agency is increasingly focused on digitizing tax filing through its 'Direct File' program and utilizing modern data analytics to improve compliance and speed up refund processing.
The main listed Internal Revenue Service (IRS) customer service number on this page is +1 267 941 1000. DialIndex also organizes additional support contact details by department so users can choose the most relevant phone line before they call.
This page currently lists 11 support phone numbers across 8 departments and links back to irs.gov when an official website is available. Always verify urgent or time-sensitive contact details on the official source.
Internal Revenue Service (IRS) Customer Service Phone Numbers
Internal Revenue Service (IRS) has 11 customer service phone numbers across 8 departments for billing, technical support, account help, and general assistance.
| Phone Line | Phone |
|---|---|
| Accessibility | |
Hearing Impaired TTY/TDD | |
| Automated Services | |
TeleTax (Refund Status & Info) | |
| Identity Protection | |
Identity Theft & IP PIN | |
| International Support | |
Overseas Taxpayers | |
| Local Office Appointments | |
Schedule an Appointment | |
| Specialized Tax Support | |
Estate and Gift Taxes | |
Excise Taxes | |
Exempt Organizations & Gov Entities | |
| Taxpayer Advocate Service | |
Taxpayer Advocate Helpline | |
| Taxpayer Assistance | |
Business Support | Mon-Fri 7am-7pm local time |
Individual Support | Mon-Fri 7am-7pm local time |
Internal Revenue Service (IRS) Customer Service FAQ
You can call the IRS toll-free at +1 800 829 1040 for individual tax questions or +1 800 829 4933 for business inquiries. Representatives are available Monday through Friday, 7 a.m. to 7 p.m. local time.