International Taxpayer Questions

Federal Benefits and Obligations

If you are a taxpayer with specific individual or business account questions you should contact the International Taxpayer Service Call Center by phone or fax. The IRS office and call center in Philadelphia is the principal office responsible for providing international tax assistance, such as questions related to tax law, foreign tax issues, and notices and bills.

Hours: Monday – Friday, 6am – 11pm (U.S.) Eastern Standard Time
Phone: +1 (267) 941-1000 (not toll-free)
Fax:     +1 (267) 941-1055

Mail:
Internal Revenue Service
International Accounts
Philadelphia, PA  19255-0725
USA

Business taxpayers located outside the United States also may contact the IRS by mail:

Internal Revenue Service
International Accounts
Ogden, UT  84201-0038

If you are a tax professional or software provider calling about an e-file issue and it is not account-related, please contact the e-help office in Austin, Texas, at 512-416-7750 (not toll-free).  Assistance is available Monday through Friday, from 7:00 a.m. to 6:00 p.m. (U.S.) Central Standard Time.

To request Taxpayer Advocate assistance, call the Taxpayer Advocate Service toll-free number: 1-877-777-4778.