


The leading gross-to-net calculation software for payroll. The Symmetry Tax Engine® (STE) is a powerful gross-to-net calculation engine to build or enhance a payroll platform, embed payroll into an existing application, and increase compliance and accuracy. Available for both U.S. Canada.

The leader in accurate & precise local tax withholding rates. Build powerful local payroll that combines location data with the Symmetry Tax Engine® to deliver precise tax withholding information based on latitude and longitude coordinates. With access to thousands of geospatial tax boundary shapefiles, Symmetry Payroll Point® boosts tax and wage rate accuracy at every level — federal, state, and local.

Guided tools to complete Federal, State, and Local Withholding forms online.

Local minimum wage rate locator and lookup for multi-location payroll tax. The Minimum Wage Finder by Symmetry tracks the minimum wage rates across the country by state, city, work or residential address, job type, job function, effective date, and more. Easily embed or integrate employee minimum wage rates into the payroll process.

Easily embed or integrate custom paycheck calculators for any payroll scenario. Calculators by Symmetry are custom paycheck calculators for any gross-to-net calculation need. Easily integrate “what-if scenarios” and payroll tax modeling into your payroll product, employer portal or public website, via an API or embeddable widgets. The payroll tax modeling calculators, powered by the Symmetry Tax Engine®, include federal, state, and local taxes, and benefits and other deductions.

Symmetry I-9 powered by WorkBright boosts compliance, eliminates manual errors using automation, and makes onboarding a smoother experience for both employers and their new hires. Offers all Section 2 verification methods (including remote) and full E-Verify integration. Symmetry I-9 delivers measurable results that directly impact your bottom line and employer satisfaction.


Symmetry is the leading payroll tax compliance infrastructure for payroll providers, tech platforms and large employers. Our accurate payroll tax APIs and onboarding compliance software automate the payroll process, so you can focus on building remarkable employer and employee payroll experiences. Symmetry powers leading people tech platforms, including Gusto, UKG, ADP, and Paychex. Symmetry accurately calculates 64 million+ employees’ paychecks and 33 million+ tax withholding forms annually across the United States and Canada.