Commuter Benefits: An Employer Guide to Section 132(f)

A new hire asked me at the end of her first week whether she could put her monthly transit pass through payroll before tax. I said I would find out. What I found was not a nice extra sitting unused in a drawer. It was a city law we were already supposed to be following.

Commuter benefits are one of the few places where the tax code, the payroll system and a local ordinance all point at the same small administrative task. Set it up once and it costs almost nothing to run. Skip it in the wrong city and it stops being a benefit question and becomes a compliance finding with a penalty schedule attached.

This is the employer view. What section 132(f) lets you offer before tax, the current monthly caps, how the deduction moves through payroll, what you do and do not get to deduct, and the jurisdictions where offering it is mandatory. I build the people and records tooling for small businesses without a dedicated HR person at FirstHR, and FirstHR is an onboarding and HR platform, not a payroll provider. This is general information rather than tax advice.

What Commuter Benefits Are

Commuter benefits are employer-provided transportation benefits that are excluded from an employee taxable wages under section 132(f) of the Internal Revenue Code. The employee pays for the commute with money that never gets taxed, and both sides skip payroll tax on the same amount.

The statutory framework sits in the fringe benefit rules (26 U.S.C. 132), which is the same section that governs the wider family of fringe benefits an employer can provide tax free.

One structural point causes more confusion than anything else on this topic. A qualified transportation fringe is not a cafeteria plan benefit. It does not live inside a section 125 arrangement and it does not behave like a health flexible spending account, even though the two get bundled together by administrators and described with the same vocabulary.

The Three Ways to Offer It

There are three delivery models, and they differ enormously in what they cost you. The tax treatment for the employee is identical across all three.

For a small business the honest starting point is the pre-tax election. It satisfies most of the legal mandates, it costs nothing in cash, and it is the version employees ask for by name.

The Monthly Limits

According to the IRS inflation adjustments for tax year 2026, the monthly exclusion is $340 for transit passes and commuter highway vehicle transportation combined, and a separate $340 for qualified parking. The caps do not share a pool, so an employee with both expenses can exclude up to $680 a month.

The figures are indexed for inflation and move most years, which the IRS publishes each autumn and restates in the employer guide to fringe benefits (IRS Publication 15-B). A payroll configuration set once and never revisited will quietly cap people below the current ceiling.

Anything provided above a monthly cap is ordinary taxable wages. It gets withheld on and reported like any other imputed income, which is a small mechanical problem rather than a disaster, but it does need to be caught in the pay run rather than at year end.

How It Runs Through Payroll

Mechanically this is a pre-tax deduction code with a hard monthly ceiling and a specific delivery step at the end. The sequence matters more than the paperwork.

Substantiation is where a reimbursement arrangement usually fails. Under the Treasury rules on qualified transportation fringes (26 CFR 1.132-9), an expense substantiated to the payor within 180 days after it was paid counts as substantiated within a reasonable period, and unused amounts may carry forward but never come back to the employee as cash.

None of this needs a dedicated benefits system, but it does need a deduction setup somebody owns. The failure mode I see most often is a correct configuration in month one that nobody updates when the statutory limit changes.

The election itself can be a single page. What it has to capture is the two amounts separately, the month the election applies to, the delivery method, and the employee confirming they understand that the money buys fare media rather than cash and that a balance is never refunded. Fill in the current monthly limits before you hand it out.

What It Costs the Employer

The employer keeps the payroll tax saving and loses the income tax deduction. Both halves of that sentence surprise people, and the second half changed under the 2017 tax law.

The deduction disallowance is the piece employers miss. Section 274(a)(4) removes the employer deduction for the expense of any qualified transportation fringe, which is how the implementing regulation states the rule. The part that catches people is the funding method: IRS Notice 2018-99 says the deduction is disallowed whether the benefit is provided in kind, through a bona fide cash reimbursement arrangement, or through a compensation reduction agreement.

What survives is the payroll tax arithmetic. Excluded amounts are not wages, so the employer share of Social Security and Medicare tax does not apply to them, and neither does federal unemployment tax. On a team where several people run a full transit election, that saving is a genuine line item rather than a rounding error in the cost of benefits per employee.

Set against the rest of a benefits package, an employee-funded commuter arrangement is close to unique: it improves take-home pay for the people who use it, costs the employer almost nothing, and needs no insurance carrier, no renewal, and no annual negotiation.

Where It Is Required

Several jurisdictions require covered employers to make a commuter benefit available. The obligation is almost always to offer the pre-tax election, not to pay for anything.

New York City is the one small employers trip over most often, and the reason is the carve-outs rather than the headline number. The law reaches full-time non-union employees who average 30 or more hours a week, any part of it worked in the city, and it covers transit and vanpool only. Parking sits outside it entirely. The city publishes the employer requirements and the enforcement approach directly (NYC Department of Consumer and Worker Protection).

Each program publishes its own employer guidance, and that is the page to read before deciding anything. The District of Columbia sets out its three options in the transit benefit rules, Seattle publishes its version through the Office of Labor Standards, and the nine-county Bay Area program runs on Regulation 14, Rule 1 at the Air District.

Thresholds and covered-employee definitions differ from one program to the next, and they get amended. Confirm the current figure with the agency that administers each program before you decide you are exempt, because the count that matters is rarely the one on your org chart.

This is a one-afternoon audit, and the output is worth keeping. List every address where somebody works, put the headcount at that address next to it, and record the date you confirmed the answer with the agency that runs the program. A year from now the only question anybody asks is when you last checked.

Penalties are modest by design and escalate with stubbornness. In New York City an employer gets 90 days to cure before any penalty can be imposed, then $100 to $250 for a first violation, and a further $250 for every additional 30-day period of non-compliance after that. Nobody is going out of business over this. Nobody enjoys the letter either.

Washington DC prices the same failure per person instead. Under the District of Columbia transit benefit rules, not offering a covered employee one of the three programs is a Class 4 infraction at $100 for a first offense, $200 for a second, $400 for a third and $800 after that, assessed for each covered employee in each month the failure continues.

What Does Not Qualify

The exclusion is narrower than the phrase commuter benefits suggests. Three categories qualify, and everything outside them is ordinary taxable pay however commute-related it feels.

Fuel, tolls, mileage and wear on a personal car are outside section 132(f) entirely. An employer who wants to help with driving costs is looking at a vehicle stipend or a mileage reimbursement, which follow completely different rules and produce completely different tax outcomes.

Ride hailing and taxi fares generally do not qualify unless the vehicle meets the commuter highway vehicle test, which requires seating for at least six adults besides the driver and use principally for commuting. A shared ride in an ordinary car does not clear that bar.

Owners are the other gap. The exclusion applies to employees, so sole proprietors, partners, independent contractors and more-than-2-percent S corporation shareholders sit outside it. Employees of the business are covered normally, which means the arrangement still works for the team even where the founder cannot personally use it.

Commute Compensation and Travel Time

Commute compensation covers two different things. One is the pre-tax and subsidy machinery above. The other is paying people for the time the journey takes, and the federal answer to that is no. Under the Department of Labor travel time rules at 29 CFR 785.35, ordinary home to work travel is not hours worked, whether somebody drives to a fixed office or to a different job site each morning.

The line moves once work has started. Travel from one job site to the next during the day is hours worked under 29 CFR 785.38, which matters to anybody dispatching a crew between customers. Reimbursing the cost of the commute does not turn the journey into work time, but promising to pay for the travel time itself can, because the Portal-to-Portal Act counts travel hours that a contract or an established practice makes compensable. Either way, the cash is wages.

That is the real trap in a flat commuting allowance. Cash handed over outside the section 132(f) delivery rules is ordinary compensation, withheld and reported like salary, so a generous gesture arrives as a smaller net check than the employee expected. Several states also define hours worked more broadly than the federal rules do, so confirm the position in every state where your people work.

Setting One Up

Most of the work is decisions and configuration. The administration itself is light once the deduction codes exist.

Where Small Employers Get This Wrong

Five patterns, and the first two are the ones that cost real money.

Not checking the local mandate is first. Employers assume a commuter benefit is optional everywhere, which is true in most of the country and false in exactly the metro areas where hiring is hardest.

Combining the transit and parking caps is second. They are separate ceilings, and merging them either caps people early or creates a taxable overage that surfaces during year-end reconciliation.

Treating it as a cafeteria plan benefit is third. It is not one, and the plan documents, election rules and forfeiture behavior are all different from a health account.

Refunding an unused balance in cash is fourth. It feels like the fair thing to do for a departing employee and it disqualifies the arrangement.

And announcing it once is fifth. Take-up is a communication problem, not a design problem, which is why this belongs in the onboarding checklist rather than in the annual benefits communication cycle.

Frequently Asked Questions