This textbook provides a comprehensive introduction to U.S. federal income tax principles for businesses and individuals. It covers essential topics such as gross income, business deductions, losses and loss limitations, property transactions, and the taxation of various business entities including corporations, partnerships, and S corporations. The text also addresses multijurisdictional business tax credits and the tax implications for individuals acting as employees.

This text is designed as an introductory guide to tax working, covering a broad spectrum of tax-related topics. The scope map indicates a structured approach to understanding business and individual tax liabilities. The content suggests a focus on practical application and comparative analysis of different tax forms and entities.