Payroll is perplexing. It would seem straightforward enough, but if you offer health, dental, or retirement benefits to your employees, the calculations become more complicated. And how can you be sure you are doing it correctly?
You could outsource your payroll. You should still perform a verification calculation to make sure your service is correct. As an employer, it is your liability.
You may be using your accounting software for payroll. To verify the payroll, it's essential to know what does and does not affect net income. The accounting software used will include the federal and state tax tables. While federal taxes are applied equally, states differ in how they apply withholding taxes.
Payroll accounting software should contain the federal tax tables for the current year and the state tax tables for each year. Benefits may be offered pre-tax or after-tax. Pre-tax reduces the employee's gross income by the benefit amount before calculating the federal tax.
However, not all pre-tax benefits reduce the FICA (Social Security and Medicare) withholdings:
Pre-tax benefits that reduce FICA
- Employee share of health insurance premiums
- Employee contributions to a Health Savings Account (HSA)
- Contributions to the Flexible Spending Accounts (FSAs) that can include healthcare FSAs and Dependent Care FSAs
- Commuter benefits: Pre-tax deductions for transit passes and qualified parking also lower your FICA liability.
Pre-tax benefits that do not reduce FICA
- Traditional 401(k) and 403(b) contributions
- Adoption assistance
- Group-term life insurance: This is a pre-tax benefit; however, if the coverage exceeds $50,000, this will be subject to FICA tax
FICA tax is contributed in two parts: one by the employee and an equal share by the employer.
When calculating the validity of the payroll:
Gross Income less Federal Tax less Employee FICA (calculated using the pre-tax and after-tax contributions) plus Employer FICA (using the same pre-tax and after-tax contributions) less the state tax withheld.
States differ in their assessments of withholding tax and in the pre-tax and after-tax benefit calculations. For example, the state of Missouri follows federal withholding guidelines, while some states, such as Florida, Texas, and Wyoming, have no withholding tax. The state of California has its own policies on pre-tax and after-tax benefits.





