PEO, EOR & payroll calculators
Every calculator on this site runs on the same public-source data used across the reference pages. Formulas and source citations are shown alongside every result, inputs are carried in the address bar so a result can be shared as a link, and nothing is gated behind a sign-up.
Calculators
- PEO cost calculatorAdministrative fee, payroll tax, workers' compensation and health contribution, priced per employee and per year.
- EOR total cost calculatorGross salary plus statutory employer contributions, mandatory extra payments and the platform fee, by country.
- Workers' compensation premium calculatorManual premium, experience modification factor, schedule credit or debit and the expense constant, step by step.
- Employer payroll tax calculatorSocial Security, Medicare, FUTA and state unemployment, with wage-base caps applied per employee.
Being built next
- SUI new-employer rate lookup by state
- ACA affordability check
- Workers'-comp rate lookup by NCCI code and state
Reference data behind these tools
- PEO rules by US state — unemployment rates, wage bases and workers'-comp routes.
- EOR reference by country — the statutory employer burden used by the EOR calculator.
- Sourcing methodology — how each rate is verified and when it expires.