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Business taxpayers located outside the U.S. May also contact the IRS by mail at: Internal Revenue Service International Accounts Ogden, UT. Residents of Puerto Rico and the U.S. Virgin Islands may contact the IRS toll free at 800-829-1040. (Hours of Operation are 7:00 a.m.

Are you a business or corporate tax customer?

  • #IRS has an ongoing effort during the pandemic reminding people who don’t have a permanent address that they may still qualify for Economic Impact Payments and other tax benefits.
  • Contact Information/Office Locations. The Department of Revenue’s Central Office is located in Jefferson City, but there are offices all over Missouri to assist you with your motor vehicle titling and registration or driver license transactions.

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International Services

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 International Call Center is operational Monday through Friday, from 6:00 a.m. to 11:00 p.m. (Eastern Time):
Tel: 267-941-1000 (not toll-free)
Fax: 267-466-1055 (for international tax account issues only)

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 at 512-416-7750 (not toll-free). Assistors are available Monday through Friday, from 7:00 a.m. to 6:00 p.m. (Central time).

Taxpayer service, formerly offered at the foreign posts of duty, is no longer available. Please send your tax forms and correspondence to the applicable address indicated below.

Individual taxpayers located outside the U.S. may also contact the IRS by mail at:

Call Internal Revenue Service

Internal Revenue Service
International Accounts
Philadelphia, PA 19255-0725

Business taxpayers located outside the U.S. may also contact the IRS by mail at:

Internal Revenue Service
International Accounts
Ogden, UT 84201-0038

Residents of Puerto Rico and the U.S. Virgin Islands may contact the IRS toll free at 800-829-1040. (Hours of Operation are 7:00 a.m. to 10:00 p.m. Monday - Friday). For face-to-face assistance information in Puerto Rico refer to Contact My Local Office in Puerto Rico.

Other items of potential interest:

International Taxpayer Advocate:
To request Taxpayer Advocate assistance, call the Taxpayer Advocate Service toll-free numbers below or refer to Contact a Local Taxpayer Advocate (LTA) in Caribbean U.S. Territories (Puerto Rico & US Virgin Islands) and International or Contact a Local Taxpayer Advocate (LTA) in Hawaii & Pacific US Territories (Guam, American Samoa and the Northern Mariana Islands).

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787-522-8601 - English
787-522-8600 - Spanish
855-818-5697 - Fax

International Tax Topic Index

For taxpayers with international filing requirements

Internal revenue service refunds

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