Internal Revenue Service (U.S. Taxes)
Tax Information for US Citizens and Resident Aliens Abroad:
Tax Guide for Preparing Returns:
For more resources on tax requirements, visit the IRS page of the US Embassy’s site:
The IRS office at the U.S. Embassy London closed in 2015 and no longer offers taxpayer assistance (mail, walk-ins or telephone). However, you may call the International Taxpayer Services call center in Philadelphia.
International Taxpayer Services
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