The U.S. Embassy would like to remind U.S. citizens that they are required to file their federal income taxes with the Internal Revenue Service (IRS) by April 18, 2022. If you are a U.S. citizen or resident alien living or traveling outside the United States, you generally are required to file income tax returns, estate tax returns, and gift tax returns, and pay estimated tax in the same way as those residing in the United States. Your worldwide income is subject to U.S. income tax, regardless of where you reside.
There is no Internal Revenue Service (IRS) office at the U.S. Embassy and Consulate in Vietnam. The ACS staff is unable to answer inquiries about the preparation and filing of U.S. taxes.
International Taxpayer Services
If you are a taxpayer who lives outside the United States and have specific individual or business account questions, you may contact the International Taxpayer Service Call Center by phone or fax.
The call center is operational Monday through Friday, from 6:00 AM to 11:00 PM, Eastern Time:
- Tel: 001-267-941-1000 (not toll free) ; select the option for international callers
- Fax: 001-267-941-1055 (a response should be received within 10 to 12 working days)
Individual taxpayers located outside the U.S. may also contact the IRS by mail at:
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
The State Department reminds all U.S. Citizens and Legal Permanent Resident Aliens that you are responsible for filing U.S. federal income tax returns while living overseas.
Publications & Forms
Click these links from the IRS for comprehensive guidance and downloadable forms for International Tax Payers:
- International Tax Payers
- Taxpayers Living Abroad
- Videos for Overseas Taxpayers
- Guide for U.S. Citizens and Resident Aliens Abroad (PDF 2.5MB)
- Forms and Publications
More useful links:
- Joint Foreign Account Tax Compliance Act (FATCA) FAQ
- Frequently asked questions about International Individual Tax Matters
- Individual Taxpayer Identification Number (ITIN)
- Contact My Local Office Internationally
- Foreign Account Tax Compliance Act
- Report Foreign Bank Accounts (FBAR)
Need someone to prepare your tax return?
The IRS maintains a directory of Federal Tax Return Preparers with Credentials and Select Qualifications located worldwide.
