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Get the Right Taxes, the First Time®

Identify complex tax scenarios, manage W‑4 Forms, track minimum wage rates, or build a payroll platform, with our payroll APIs and tax withholding software.

Powerful alone. Better together.

Talk data to me.

  • 64 million
    employees’ paychecks calculated each year

  • 19 million
    withholding forms processed in 2020 alone

  • 3.32 milliseconds
    average tax engine speed per calculation

Success comes in all sizes. From high growth businesses to established enterprises, you’re in good company.
Read customer stories
  • “The staff at Symmetry Software is professional, thorough, and sincere. Good people that want to do the best for their customer.”
  • The product is very easy to use. The quality is unparalleled and has very little maintenance to maintain.”
  • “Intelliworx has had a great working relationship with the entire Symmetry Software team. They worked hard to get the product to where we needed it to be for the government market.”

Speak to an expert to see how embedding the correct payroll APIs and tax withholding software can significantly impact your business.