If you need to reach the IRS for help with refund delays, payment problems, or international account issues, several dedicated phone lines and mail options are available for both individuals and businesses.
Contact the International Taxpayer Service Call Center
Taxpayers with international or complex account questions — such as overpayment status, balances owed, or IRS correspondence — should contact the International Taxpayer Service Call Center.
Operating Hours: Monday to Friday, 6 a.m. – 11 p.m. (Eastern Time, U.S. and Canada)
Phone: 267-941-1000 (not toll-free)
Fax: 681-247-3101 (for international tax account issues only)
Please note: Some inquiries may be too complex for telephone assistors to resolve. For those, visit the IRS page titled “Find Information on Complex Tax Topics.”
Read More On Tax Rebates & Refunds
Contact for e-File or Software Issues
If you are a tax professional or software provider with an e-file related question that is not account-specific, contact the e-help office in Austin, Texas.
Phone: 512-416-7750 (not toll-free)
Hours: Monday to Friday, 7 a.m. – 6 p.m. (Central Time)
Mailing Addresses for Taxpayers Outside the U.S.
Taxpayer service is no longer available at foreign posts of duty. All correspondence and forms must be mailed to the appropriate IRS address.
For individual taxpayers:
Internal Revenue Service
International Accounts
Philadelphia, PA 19255-0725
For business taxpayers:
Internal Revenue Service
International Accounts
Ogden, UT 84201-0038
Contact Numbers for U.S. Territories
Residents of Puerto Rico and the U.S. Virgin Islands can contact the IRS toll-free at 800-829-1040, available Monday to Friday from 7 a.m. to 10 p.m. (local time).
For in-person assistance in Puerto Rico, visit the IRS page “Contact Your Local IRS Office.”
Taxpayer Advocate Service for U.S. Residents Abroad
Taxpayers living overseas can also reach the Taxpayer Advocate Service (TAS) for help resolving account or refund issues.
Your call will be automatically routed to Hawaii or Puerto Rico, depending on your location. Calls made in Spanish will be routed to the Puerto Rico office.
Mailing Address:
Taxpayer Advocate Service
48 Carr 165, Suite 2000
Guaynabo, PR 00968-8000
Phone: +1 515-564-6827 (not toll-free)
Fax: 304-707-9793
Email: tas.international@irs.gov
How to Check if Your Federal Tax Refund Check Was Cashed
If you need to confirm whether your federal refund check has been cashed, you can start a refund trace using any of the following options:
- Use the “Where’s My Refund?” online tool.
- Call 800-829-1954 (toll-free) to access the automated refund system.
- To speak directly with a representative, call 800-829-1040 (see below for hours).
Important:
- If you filed jointly (married filing jointly), you must speak with a representative — automated systems cannot process joint refund traces.
- You may also complete and mail Form 3911 (Taxpayer Statement Regarding Refund) to initiate a trace.
- If you need a photocopy of your refund check due to a payment dispute, contact the IRS by phone to request assistance.
By law, the IRS cannot share refund information about another person unless you have proper authorization. To access someone else’s refund information, you must submit Form 2848 (Power of Attorney and Declaration of Representative) or Form 8821 (Tax Information Authorization).
General IRS Contact Numbers
For general refund or payment assistance, you can reach the IRS by phone or in person.
For individual tax returns:
- Phone: 1-800-829-1040
- Hours: 7 a.m. – 7 p.m. (Monday to Friday, local time)
- Best for: Simple or general refund and payment inquiries
For business tax returns:
- Phone: 1-800-829-4933
- Hours: 7 a.m. – 7 p.m. (Monday to Friday, local time)
For in-person help:
Find your nearest Taxpayer Assistance Center and book an appointment at IRS.gov/localcontacts.
Please note: The IRS does not respond to tax-related questions by email.