StateW4.com - Employee Exemption Certificates Index Page

Symmetry Tax Engine

PaycheckCity calculators rely on the Symmetry Tax Engine® for accurate withholding tax computations. For software developers, the Symmetry Tax Engine® is a logical component of your payroll application. Millions of Paychecks are calculated every payday with the Symmetry Tax Engine.

The Symmetry Tax Engine frees you from the burden of withholding taxes with…

Federal, FICA (Social Security and Medicare)
State withholdings and multistate functionality
Local Taxes (City, County, School Districts, etc)
FUTA and SUTA
True geocoding functionality
Timely updates
Wrappers for C, .NET, ASP and JAVA environments

To learn more about the Symmetry Tax Engine, click here.

Questions? Contact StateW4.com for more information about our payroll withholding calculators, and other payroll tools including the Symmetry Tax Engine and private label paycheck calculators.