NEMT Fuel Surcharges in 2026: How to Build a Policy That Protects Your Margin

Diesel hit $4.668 a gallon the week of June 26, 2026, according to the U.S. Energy Information Administration. That is up $0.941 from the same week a year earlier. Regular gasoline sits at $3.831 a gallon, up $0.667 year over year. If you run a non-emergency medical transportation fleet, your NEMT fuel surcharge is the only line item standing between those numbers and your bottom line. Most broker contracts were priced against fuel costs from a year ago or more, and the base rate has not moved since. A well built fuel surcharge closes that gap without forcing you to renegotiate your entire contract every time gas prices jump. Most operators either skip the surcharge and eat the loss, or they add a flat fee that brokers reject on sight. Neither protects your margin. Here is the actual math, the data source to use, and the contract language that gets a surcharge approved instead of ignored.

What a Fuel Surcharge Actually Is and Why Flat Rates Fail in 2026

A fuel surcharge is an adjustable add-on to your base trip rate that tracks the difference between the price of fuel today and the price of fuel when you signed your contract. It exists because your base rate is fixed and fuel is not. When you negotiate a rate with a broker or a facility, you build it around the fuel cost at that moment. Six months later, diesel can move a dollar a gallon in either direction, and your fixed rate stays exactly where it started.

This gap is already squeezing the industry. A 2026 NEMT industry rate survey found that 65 to 70 percent of providers describe their current reimbursement rates as barely sustainable, and roughly 60 percent expect rural providers to exit the market if nothing changes. Fuel is one of the biggest reasons why. Insurance, labor, and vehicle maintenance also eat into margin, but fuel moves faster and less predictably than any other line item on your P&L. On a standard ambulatory trip billed at $47, a $1.00 per gallon jump in diesel across a 12 mile round trip can quietly erase 4 to 6 percent of that fare if you have no mechanism to recover it. Multiply that across a fleet running 40 trips a day and the monthly loss runs into thousands of dollars, money that never shows up as a single alarming number, just a slow bleed on your P&L.

A flat fee, like an extra two dollars a trip regardless of distance or fuel price, does not hold up under scrutiny. Brokers and facility billing departments want to see a defensible formula tied to a public data source, not a number you picked because it felt fair. That is the difference between a surcharge that gets approved and one that gets stripped out of your invoice before payment. It is also worth remembering that a fuel surcharge is not a substitute for a broader pricing strategy. If your base rate is already too low to cover insurance and labor, a surcharge only patches one hole in a leaking structure. Our NEMT profit calculator can help you see whether fuel is your only problem or one of several.

How to Calculate Your Fuel Surcharge

There are two accepted methods in the transportation industry, and NEMT providers use both. Pick one, document it, and apply it consistently across every contract you can control.

The Percentage Method

You add a fixed percentage on top of your base rate whenever the price of fuel crosses a set threshold above your baseline. For example, you might set a rule that for every $0.25 per gallon increase over your baseline price, you add 1 percent to the trip rate. This method is easy to apply across every invoice and every trip type, which is why smaller fleets tend to prefer it. The tradeoff is precision. A percentage surcharge does not account for how many actual miles a specific trip covered, so it can slightly overcharge short trips and undercharge long ones.

The Per-Mile Method

You calculate your actual fuel consumption per mile for each vehicle class, multiply that by the difference between current and baseline fuel prices, and apply the result as a per-mile add-on. The formula looks like this: gallons consumed per mile times the price difference, multiplied by trip mileage, gives you the exact unrecovered cost per trip. This method is more accurate because it reflects real consumption, but it requires you to track mileage and fuel economy by vehicle, which means your dispatch software needs to be capturing that data automatically.

Here is the math on a real trip. Say your baseline diesel price was $3.70 a gallon, and today's price is $4.668, a difference of $0.968. Your wheelchair van gets 14 miles per gallon, so it burns 0.0714 gallons per mile. Multiply 0.0714 by $0.968 and you get $0.069 per mile in unrecovered fuel cost. On an 18 mile trip, that is $1.25 you are currently losing on every single run unless your surcharge captures it. Run that same van on 15 trips a day and you are looking at roughly $18.75 a day, or close to $6,800 a year, quietly missing from a single vehicle's revenue.

Whichever method you choose, use our fuel surcharge calculator to run the numbers before you present anything to a broker or facility. Walking into a negotiation with an exact figure, not an estimate, changes how seriously the other side takes your request.

Where to Get Your Baseline Price: Use EIA Data, Not Guesswork

The single biggest reason fuel surcharges get rejected is a missing or arbitrary baseline. If you cannot point to where your baseline price came from, the person reviewing your invoice has no reason to trust the surcharge on top of it.

Use the U.S. Energy Information Administration's Weekly Retail Gasoline and Diesel Prices report as your baseline and your ongoing reference point. It is a free, publicly available, government data source that updates every Monday, and no broker or facility can credibly argue with it. As of late June 2026, the national average sits at $3.831 for regular gasoline and $4.668 for diesel. Record the exact figure and date when you sign or renew a contract; that becomes your baseline. Every future surcharge calculation measures against that number, not against whatever price you remember paying at the pump last week. If you operate across state lines, note that EIA also breaks prices out by region, so a fleet running trips in the Gulf Coast will see different figures than one running in the Midwest, and your baseline should reflect the region where you actually buy fuel.

Set a review cadence and stick to it. Monthly reviews work for most fleets; quarterly works if your contracts are large and renegotiation is slow. Whatever you choose, put the review date in writing in your contract so the facility or broker knows exactly when to expect an adjustment, and so you cannot be accused of updating the number whenever it is convenient for you.

Broker Contracts vs Private Pay: Two Different Negotiations

The path to getting a fuel surcharge approved looks completely different depending on who is paying the invoice.

Medicaid Brokers

Medicaid managed care brokers operate under state contracts with their own rate schedules, and most of them are slow to accept fuel escalation clauses after the fact. You have to negotiate the clause into the service level agreement before you sign, not after fuel prices move. If your current broker contract does not have one, request an amendment and cite the EIA index as your data source. Brokers are far more likely to accept a clause tied to a government index than a request for a general rate increase. Some state broker programs, like Colorado's move to a single statewide broker model in mid-2026, are also consolidating contract terms across the entire state, which means one successful fuel clause negotiation can set the standard for every provider under that broker going forward. If you are building or renegotiating broker relationships from scratch, our broker directory tool can help you find the right contacts and understand what each broker typically accepts.

Private Pay and Facility MSAs

Private pay clients and direct facility contracts give you far more control. Build the fuel surcharge directly into your Master Service Agreement from the start, disclosed as a separate line item on every invoice. Facilities are generally more willing to accept a transparent, well documented surcharge than brokers are, especially when you can show the EIA data behind it. Private pay and facility work already commands two to four times the rate of broker trips, so protecting that margin with a clean surcharge policy matters even more here. If you want to grow this side of your business, see our guide on winning private pay NEMT clients for a full comparison of broker versus private pay economics.

Ready to stop losing margin to fuel prices?

MedFlow Digital helps NEMT operators build defensible fuel surcharge policies, negotiate stronger broker and facility contracts, and price every vehicle class correctly.

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What Belongs in Your Fuel Surcharge Clause

A fuel surcharge clause that actually survives a broker or facility review needs these six elements written into the contract:

• The exact data source for your baseline and ongoing price checks, for example the EIA Weekly Retail Gasoline and Diesel Prices report.
• The baseline price and the date it was recorded.
• The calculation method, either percentage or per-mile, spelled out with the exact formula.
• The trigger threshold, meaning how much the price has to move before the surcharge activates or adjusts.
• The review frequency, whether monthly or quarterly, stated as a specific date or interval.
• A statement that the surcharge appears as a separate, disclosed line item on every invoice, not folded into the base rate.

Leave any one of these out and you give the other side room to dispute the charge or ignore it entirely.

Wheelchair Vans and Stretcher Vehicles Need Different Surcharge Math

Wheelchair vans make up 43 percent of the entire NEMT market, and they do not get the same fuel economy as a standard ambulatory sedan. Stretcher vehicles are heavier still. National base rates already reflect this: roughly $47 for ambulatory trips, $89 for wheelchair trips, and $412 for stretcher transport. If you apply one flat percentage surcharge across your entire fleet, you will undercharge your wheelchair and stretcher vehicles, which burn more fuel per mile and cost more to keep on the road. This is also where rideshare competitors like Uber Health and Lyft Healthcare cannot touch your business. Neither platform serves wheelchair, stretcher, or door-through-door patients, so this segment of your fleet carries both your highest fuel exposure and your most protected revenue. It deserves a surcharge policy built specifically for it, not a copy of your sedan formula.

Calculate a separate baseline fuel consumption rate for each vehicle class in your fleet. A wheelchair van might average 14 miles per gallon while your sedans average 28. That difference alone means your wheelchair van surcharge should be roughly double your sedan surcharge for the same price movement. Stretcher vans, which often carry heavier medical equipment and run larger diesel engines, need their own baseline again, typically closer to 10 to 12 miles per gallon. Skipping this step is one of the most common ways operators quietly underprice their higher cost vehicles even after adding a surcharge, and it is the single fastest fix once you notice it.

Common Mistakes That Get Fuel Surcharges Rejected or Ignored

Watch for these before you send a surcharge request to any broker or facility.

No documented baseline. If you cannot show the exact price and date you started from, the request looks arbitrary.

Changing your methodology mid-contract. If you start with a percentage method and switch to per-mile halfway through, expect pushback and lost trust.

Bundling the surcharge with a base rate increase request. Keep these two asks completely separate. A fuel surcharge is a cost pass-through, not a rate negotiation, and mixing them makes both requests weaker.

Not disclosing it as a line item. Folding the surcharge into your base rate on the invoice makes it invisible, and invisible charges get flagged during audits.

Citing no public data source. An internal spreadsheet is not a defensible baseline. Use the EIA index every time.

Applying the surcharge retroactively. Only apply it going forward from the date you notify the broker or facility in writing.

How Dispatch Software Tracks Fuel Cost Automatically

Manually tracking fuel prices, mileage, and vehicle class across a growing fleet is where most operators fall behind. Mid-2026 industry data shows AI powered dispatch and billing platforms cutting administrative workload by up to 50 percent while improving compliance through real time data capture. The same systems that track EVV compliance and trip mileage can log per-vehicle fuel consumption automatically, which means your per-mile surcharge calculation updates itself instead of requiring a spreadsheet every month. Predictive scheduling tools built on this data have also been shown to cut no-shows by up to 30 percent, which matters here too, since every no-show trip still burns dispatch time and, in some cases, dead-head mileage that your surcharge formula should account for.

If your current software cannot do this, it is worth a hard look at what you are running. See how a modern NEMT operation is structured on our how it works page, and if you are earlier in the process of setting up your operation, our NEMT services overview covers the technology stack that supports accurate cost tracking from day one. A well designed website and booking flow, the kind our web development team builds for NEMT operators, also makes it easier to disclose surcharges transparently to private pay clients booking directly online.

Frequently Asked Questions

What is a NEMT fuel surcharge?

It is an adjustable add-on to your base trip rate that accounts for the difference between current fuel prices and the fuel price in place when you signed your contract. It protects your margin without requiring a full rate renegotiation every time fuel costs move.

How often should I update my fuel surcharge?

Monthly works for most fleets. Quarterly is acceptable for larger contracts where renegotiation is slower. Pick one cadence, put it in writing in your contract, and stick to it.

Can Medicaid brokers refuse a fuel surcharge?

Yes, and many will unless the clause was negotiated into the service level agreement before you signed. Request an amendment citing the EIA index as your data source rather than asking for a general rate increase.

Should I charge the same surcharge for wheelchair and ambulatory trips?

No. Wheelchair vans and stretcher vehicles burn more fuel per mile than ambulatory sedans, so a flat percentage across your whole fleet undercharges your higher cost vehicles. Calculate a separate baseline for each vehicle class.

What data source should I use for fuel prices?

The U.S. Energy Information Administration's Weekly Retail Gasoline and Diesel Prices report. It updates every Monday, it is free and public, and brokers and facilities cannot credibly dispute it.

Is a fuel surcharge taxable income?

Yes. A fuel surcharge is part of your gross trip revenue and gets reported the same way your base fare does. Talk to your accountant about how it affects your specific tax filings, since this varies by business structure and state.

How do I present a fuel surcharge to a private pay facility?

Build it into your Master Service Agreement as a separate, disclosed line item from the start, backed by the EIA baseline and date. Facilities respond far better to a documented, transparent process than a surprise charge added after the fact.

What if diesel prices drop after I set my surcharge?

Your surcharge should move in both directions. If your calculation method only adds cost when prices rise and never adjusts down when they fall, brokers and facilities will eventually challenge the entire policy. Build the formula to track the actual price difference, whichever direction it moves.

Fuel prices are not going to hold still, and neither should your rates. Set your baseline against the EIA index, pick the calculation method that matches your fleet, and put the clause in writing before the next price jump costs you another quarter of margin. Start with our fuel surcharge calculator to see exactly what you should be charging today, and if you want help building the contract language or the broader pricing strategy behind it, contact MedFlow Digital and we will walk through it with you.