Commuter Benefits Save the Company Money Too
Most commuter benefit calculators show how much an individual employee saves in income tax. This one looks at the other side of the ledger: how much your company saves in payroll tax. Under IRS Section 132(f), employers can offer up to $325 per month, per employee, in tax-free transit or parking benefits for 2025. Because that amount is excluded from taxable wages, it's also excluded from the wage base used to calculate the employer's 7.65% FICA contribution. Multiply that across your whole team over a year, and the FICA savings can add up meaningfully — effectively lowering the real cost of the benefit you're already offering. Enter your headcount and the monthly benefit amount to see the tax-free portion, the annual FICA savings, and the net cost to your company after those savings.
How It's Calculated
| Step | Item | Formula |
|---|---|---|
| 1 | Tax-free portion | min(monthly benefit, $325) |
| 2 | Annual tax-free total | Tax-free portion × 12 × employees |
| 3 | Employer FICA savings | Annual tax-free total × 7.65% |
| 4 | Net annual cost | Total benefit cost − FICA savings |
The $325 monthly limit is set by the IRS and can change year to year, so check the current figure before finalizing your benefits budget.
Frequently Asked Questions
For 2025, employers can provide up to $325 per month, per employee, tax-free for qualified transit or parking benefits under IRS Section 132(f). Any amount above that is treated as taxable wages.
Because the benefit is excluded from the employee's taxable wages, it's also excluded from the wage base used to calculate the employer's share of FICA tax (7.65%). The employee saves on income tax and their own FICA share, and the employer saves on its matching FICA contribution — this calculator focuses on the employer's side.
The excess above $325/month is treated as regular taxable wages, subject to income tax and FICA on both sides just like normal pay. Only the portion up to the limit generates FICA savings.
※ Actual figures may vary by individual circumstances. This is a reference estimate only.