PaycheckCity calculators are accurate and always up-to-date. This is because The Symmetry Tax Engine® drives every computation that occurs on a PaycheckCity.com calculation. If you are building a software application, you can license the same tax engine that drives PaycheckCity.com.

For over 25 years, Symmetry has provided the tax calculation engine for millions of paychecks calculated every payday. For software developers, the Symmetry Tax Engine® is a logical component of your payroll application. Virtually every community in America has employees whose paycheck withholding calculations are computed by a Symmetry Tax Engine.

The Symmetry Tax Engine® calculates payroll withholding taxes for: Federal, FICA (Social Security and Medicare), state withholdings for all 50 states, Puerto Rico and US Territories, and various other payroll related withholdings. Symmetry Software supports customers with timely and accurate updates and supporting documentation.

Wrappers for C, .NET, ASP and JAVA environments are included in The Symmetry Tax Engine®. All calculations are check date based, applying the date appropriate rates and tables. Whenever there is an update to the STE, you are notified by email and you download the changes directly from the Symmetry website. License terms allow you to re-distribute the STE with your application; talk with your Symmetry representative for details. A Canadian version of the Symmetry Tax Engine is also available.

To learn more about the Symmetry Tax Engine® click here to go the Symmetry Software corporate website .