What Is a Commuter Benefit Plan: Pre-Tax Limits and Eligible Expenses

A commuter benefit plan is a pre-tax payroll arrangement, authorized under Section 132(f) of the Internal Revenue Code, that lets you pay for transit, vanpooling, or work-related parking with income before federal tax and FICA are taken out. For 2026, you can shelter up to $340 a month for transit and vanpool costs and another $340 a month for qualified parking, so someone using both categories can move as much as $680 a month, or $8,160 a year, through the plan tax-free.¹

How the Pre-Tax Deduction Works

The plan runs on a salary reduction agreement between you and your employer. Each month, an amount you choose is pulled from your gross pay before federal income tax, Social Security tax, and Medicare tax are calculated, then routed to a dedicated commuter account. Because the deduction lands before taxes, your taxable wages fall and your take-home effectively rises, even though you’re spending the same money on the same commute.

Your employer can also fund the account directly as a tax-free benefit, or combine its contribution with your salary reduction. The combined total from all sources still has to stay under the monthly limit for each category. Anything above the cap gets added back to your W-2 as taxable wages.²

One structural point worth knowing: this is not part of a Section 125 cafeteria plan, even though the paycheck mechanics feel similar. Commuter benefits live under their own section of the tax code, and your employer keeps a separate written plan document for them.

What Counts as an Eligible Commute Expense

Three categories qualify. Everything outside them stays taxable.

Transit Passes

Any pass, token, farecard, or voucher for mass transit qualifies. That means buses, subways, commuter rail, light rail, and ferries. Rides in privately operated vehicles also count if the vehicle seats at least six adults (not counting the driver) and the operator is in the business of transporting people for hire.³

Vanpooling

A commuter highway vehicle has to seat at least six adults besides the driver, and at least 80 percent of its mileage has to be for commuting trips where half or more of the adult seats are filled.³ These rules are why standard ride-share trips generally don’t qualify. A four-seat Uber or Lyft can’t clear the seating test, and pooled options like UberPool or Lyft Shared miss on both seating and mileage. A ride-share trip only qualifies if it genuinely uses a van seating at least seven people and meets the mileage rule.

Qualified Parking

Parking qualifies when it’s on or near your employer’s business premises, or on or near where you catch mass transit, a vanpool, or a carpool. Parking at or near your home does not qualify.³

What’s Excluded

Tolls, gas, vehicle maintenance, car payments, and general mileage reimbursement all stay outside the plan. Bicycle commuting reimbursements were once qualified, but Congress permanently removed that category from the code in 2025 after it had already been suspended since 2018.⁴

2026 Monthly Limits

For 2026, the cap is $340 a month for transit and vanpool combined, and $340 a month for qualified parking.¹ The two limits are separate, so someone who both rides transit and parks near a station or the office can stack them. Both limits were $315 a month in 2024, and the code adjusts them for inflation in $5 increments.³ You can change your election month to month, which matters if your commute shifts with the seasons or your schedule changes.

What You Actually Save

Your savings come from three places: federal income tax, the 6.2 percent Social Security tax, and the 1.45 percent Medicare tax. If you’re in the 22 percent federal bracket and put the full $340 a month toward transit, you avoid roughly $100 a month in combined federal taxes. Over a year, that’s about $1,200 back in your pocket, before any state income tax savings on top.

Your employer gains on the payroll tax side. Every dollar you route through the plan is a dollar the employer doesn’t owe its matching 7.65 percent FICA on.²

There’s a trade-off on the employer side worth flagging. Since 2018, the Tax Cuts and Jobs Act has barred employers from deducting the cost of providing qualified transportation fringe benefits as a business expense, and that disallowance is still in effect for 2026.⁵⁶ Plans funded entirely by employee salary reductions aren’t affected, since the employer isn’t incurring an expense in the first place, but any employer that directly subsidizes parking or transit loses the deduction on that spending.

How the Money Reaches Your Commute

Most plans deliver funds through a prepaid debit card locked to transit and parking merchants, or through vouchers redeemable only for transit passes. Some employers use direct reimbursement, where you pay first and file a claim. In every case, the expense has to be substantiated. If it isn’t properly documented, the administrator can treat the funds as taxable wages.²

Who Can Use the Plan

Qualified transportation fringe benefits are available to current common-law employees, and to leased employees who have worked substantially full-time for the employer for at least a year under its direction or control. Self-employed individuals, including sole proprietors and independent contractors, are explicitly excluded. If you work for yourself, this benefit isn’t available to you.²

Unused Funds and Leaving a Job

Commuter benefit plans have no statutory use-it-or-lose-it rule tied to the calendar year, unlike a healthcare FSA. Money you set aside but don’t spend generally rolls forward for future qualifying commuting expenses. What you can’t do is cash it out, get it refunded, or move it into another benefit plan. Over-contribute, and the excess just sits until you spend it on eligible costs.

Leaving a job is where the plan tightens up. Two rules apply everywhere: you can’t be reimbursed for commuting expenses incurred after your employment ends, and unused balances can’t be refunded to you. When you leave, you typically get a limited window to submit claims for expenses you had before your last day. After that window closes, whatever is left is forfeited. The employer can keep the money, apply it to plan administration, or spread it across other participants’ accounts.

If you know a departure is coming, drop your monthly election ahead of time or time a larger transit pass purchase to draw the balance down. It’s the one part of the plan where paying attention to timing directly protects money you’ve already earned.

1
Internal Revenue Service. Revenue Procedure 2025-32
2
Internal Revenue Service. Publication 15-B (2026) Employer’s Tax Guide to Fringe Benefits
3
Office of the Law Revision Counsel. 26 USC 132 Certain Fringe Benefits
4
Office of the Law Revision Counsel. 26 USC 132 Certain Fringe Benefits
5
Office of the Law Revision Counsel. 26 USC 274 Disallowance of Certain Entertainment Etc Expenses
6
Internal Revenue Service. Qualified Parking Fringe Benefit