About · Accountability
Transparent hiring-cost research, built to be checked
HiringMath is an independently operated calculator and research project based in Germany. It helps U.S. employers understand the cost difference between employees and contractors without selling payroll software, collecting leads, or receiving a commission on a hiring decision.
Who creates the content
Guides and reference pages are published by HiringMath Research. Tax figures are reviewed against the primary sources listed in our methodology. HiringMath is a planning tool, not a CPA firm or law firm, and it does not present estimates as filing or classification advice.
How the research is produced
Primary sources first
Federal tax constants come from current IRS guidance. State unemployment rates and wage bases start with U.S. Department of Labor tables and are supplemented by state-agency publications when needed.
One tested calculation engine
The calculators, examples, tables, and state pages use the same typed dataset and unit-tested formulas. We do not maintain separate marketing numbers that can drift from the calculator.
Assumptions stay editable
Benefits, workers’ compensation, overhead, assigned SUI rates, and contractor pricing vary by employer. Planning defaults are labeled and can be replaced with the reader’s actual figures.
Corrections are published
Material source or formula changes update the affected page and its review date. Readers can report a suspected error by email for source-level review.
State pages are data-driven so that every state uses the same formulas and presentation. Automation changes the state-specific facts and calculations; it does not invent tax rates or replace the source review. Each page exposes its assumptions and links back to the methodology.
Independence and limitations
HiringMath does not rank payroll vendors, accept payment to change a result, or favor W-2 over 1099. A real employer’s assigned SUI rate, workers’ compensation class, local taxes, benefit design, and legal facts can differ from our planning defaults. Confirm filing and worker-classification decisions with a licensed CPA or employment attorney.
Questions and corrections
If a figure appears inconsistent with an IRS, Department of Labor, or state-agency publication, email privacy@hiringmath.com with the page, source link, and effective date. See the complete methodology and source list.