Business Guides

Practical guides to help you understand U.S. small business taxation, federal estimated payments, and small-business compliance. Drawing on U.S. Internal Revenue Service Statistics of Income (SOI) data covering more than 33,000,000 active small businesses in tax year 2023, plus state Department of Revenue 2026 rate bulletins across all 50 U.S. states. According to the U.S. Small Business Administration Office of Advocacy, small businesses account for 43.5% of U.S. GDP; see our methodology for refresh cadence and data sources.

Methodology

Our guides are based on publicly available data from authoritative government sources. All statistics, ratings, and figures cited in these guides are drawn directly from official datasets and publications, with sources clearly referenced throughout.

We aim to present complex government data in plain language that is accessible to general audiences. When methodologies differ between data sources or change over time, we note these variations inline. Our editorial process includes regular reviews to ensure accuracy and timeliness of the information presented.