Symmetry Software specializes in payroll and payroll-related software applications for large employers and payroll providers. . Users can private-label their own payroll modeling calculators through Calculators by Symmetry. The Symmetry Tax Engine is embedded in payroll software to calculate Federal, State and Local withholding taxes. Symmetry Payroll Forms allow employees to prepare federal and state withholding certificates electronically. Payroll Point determines what taxes should be set up and what rates apply based on an employee's home and work address.