How to Calculate Payroll Taxes

Payroll tax calculations can be divided into basic steps in order to make the process more manageable. No matter if you are an employer handling paychecks or an employee examining deductions, the details on the calculation method regarding how to calculate payroll taxes can be highly beneficial. We present a step-by-step guide below:

Step 1: Gross Pay Determination

The starting point should be the employee's gross pay. This is the total earnings before any deductions were applied. It includes hourly wages, salary, overtime pay or bonuses. In order to explain the following steps, let’s assume that an employee earns $6,000 per month as gross pay.

Step 2: Pre-Tax Deductions Subtraction

Certain deductions are made before taxes are applied. Pre-tax deductions include:

  • 401(k) Contributions: They are the retirement savings item. They typically shift between 5 and 10% of gross pay.

  • Health Insurance Premiums: These amounts differ depending on the employee’s health plan.

  • Flexible Spending Accounts (FSAs): Contributions for medical or dependent care expenses.

Step 3: Federal Income Tax Calculation

Federal income tax is based on IRS tax brackets. The rate depends on the employee’s income, filing status, and details submitted on Form W-4.

  • The IRS provides updated withholding tables to assist in calculating the exact amount.

  • The federal income tax may change from $400 to $900 in the case an employee earns $6,000 monthly depending on their W-4 elections.

Step 4: FICA Taxes Deduction

The Federal Insurance Contributions Act (FICA) mandates Social Security and Medicare taxes:

  • Social Security Tax: 6.2% of gross income (up to an annual cap).

  • Medicare Tax: 1.45% of gross income, with an additional 0.9% for high earners (over $200,000 for single filers).

Step 5: Other Deductions Should Be Accounted For (if applicable)

In the case there are other mandatory or voluntary deductions like garnishments or union dues, they should be subtracted after FICA taxes are applied.

Final Step: Net Pay Calculation

Net pay is determined after all taxes and deductions are subtracted from the gross pay. The simplified formula is as below:

Net Pay = Gross Pay - (Pre-Tax Deductions + Federal Income Tax + FICA Taxes + Other Deductions)

Example Calculation

Item Amount Calculation
Gross Pay $6,000 -
401(k) Contribution $300 -
Federal Income Tax $600 Estimated
Social Security Tax $372 6.2% of $6,000
Medicare Tax $87 1.45% of $6,000
Total Deductions $1,359 Sum of all deductions
Net Pay $4,641 $6,000 - $1,359

Simple Calculation Tools

There are payroll calculators that provide accurate calculations as given below. For further assistance on how to calculate payroll taxes, contact Dimov Partners today.

George Dimov