As provided by the Internal Revenue service, IRS Publication 15-B, Supplement to Circular E, Employer's Tax Guide, Publication 15, Employer's Tax Guide to Fringe Benefits is a tax information guide on fringe benefits for every employer.
As provided by the Internal Revenue service, IRS Publication 54, Tax Guide for U.S. Citizens and Resident Aliens Abroad is a tax information guide for U.S. citizens and aliens who live and work abroad.