IRS Publications
- IRS Publication 515, Withholding if Tax on Nonresident Aliens and Foreign Entities
- IRS Publication 519, U.S. Tax Guide for Aliens
- IRS Publication 901, U.S. Tax Treaties
- IRS Publication 970, Tax Benefits for Education
- IRS Forms and Publications: All available Forms and Publications
U.S. Government Resources
- Department of State
- Electronic System for Travel Authorization (ESTA)
- Electronic I-94 Retrieval
- Library of Congress
- Social Security Administration (SSA)
- U.S. Citizenship and Immigration Services (USCIS)
- U.S. Code of Federal Regulations
- U.S. Customs and Border Protection (USCBP)
Travel planning and risk awareness
- Airlines, Airports, and Distances between Points
- Country Phone Access Codes
- Country Profiles (Library of Congress)
- Currency Converter
- Language Translator
- Time Converter
- U.S. Department of State Consular Information Sheets
- U.S. Department of State Travel Warnings
- Weather
- World Clock - Time Zones
- World Holidays