Symmetry Tax Engine vs. Justworks

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. The Symmetry Tax Engine® accounts for federal, state, and local payroll taxes — both withholding and latent employer taxes — for over 7,400 taxing jurisdictions and U.S. territories. Employer taxes and multi-state processing are accounted for as well. STE covers all 50 states, U.S. territories including Puerto Rico, and Canada.

Justworks is an all-in-one HR platform for small and growing businesses, combining payroll, access to corporate-level benefits, HR compliance support, time tracking, and HR consulting in one system. Businesses can start with standalone Payroll (from $8/employee/month) and move into the full PEO (from $79/employee/month) as they grow, or add Employer of Record services to hire internationally without setting up a local entity.