Article Summary
How to solve the contract freight margin gap
- Tie surcharges to shipment dates: Calculate fuel surcharges using the actual date the load moves rather than using invoice dates, contract dates, or last week's spreadsheets.
- Automate pricing updates: Eliminate manual update cycles by setting up automated systems that adjust pricing instantly when diesel prices change, completely removing the lag that causes structural losses.
- Evaluate load profitability upfront: Analyze and understand the total cost of a load—including actual fuel costs for that specific lane on that day—before accepting it to ensure the surcharge fully covers expenditures before the driver starts the engine.
After years of relative stability, diesel prices surged past $5 a gallon across much of the U.S. in 2026, driven by geopolitical disruption and supply constraints that few operators had priced into their planning. Over the same period, the premium that contract rates carry over spot freight compressed from 39 cents a mile to 11 cents a mile. As a result, carriers are now caught between costs that move fast and rates that do not, and most are trying to solve that misalignment at the negotiating table. However, that is the wrong place to look.
Most carriers know this margin gap exists, but few can tell exactly how much it is costing them by customer, lane, or week. That is the real problem, and it points to something more specific than rate pressure.
Hidden cost of pricing on a lag
Contract freight is built on a straightforward model: Carriers generally accept a lower rate structure in exchange for volume stability and lane predictability. For decades, that worked when costs were relatively stable. When diesel climbs more than $2 a gallon above forecast in a matter of weeks, the model starts working against the carrier. The mechanism through which carriers lose money is more specific than most realize.
Many carriers calculate fuel surcharges using published index rates from the prior week or longer, adjusting on a monthly or even quarterly basis. This means a surcharge may reflect fuel conditions from weeks before the load actually moved. The carrier is not recovering the fuel cost based on the day the load moved; instead, it is recovering the fuel cost from when someone last updated a spreadsheet. That lag is a structural loss built into every load, compounding quietly until quarterly results land and the numbers do not match expectations. The gap is not at the contract level; it is at the execution level, between what was actually spent and what was actually charged.
This isn’t a pricing problem. It’s a timing problem.
The instinct most carriers follow when margins erode is to renegotiate: Get better rates, push shippers on terms, and wait for the market to correct. That response addresses the symptoms while leaving the root cause intact. What volatility has revealed is that the surcharge was never truly real-time, and it should be.
Spot rates are running at their highest average since June 2022, while dry van contract rates have moved only in the low single digits year-over-year. That gap is evidence that contract freight has become structurally underpriced for the cost environment carriers are actually operating in. Carriers who believe they are passing fuel costs through to shippers are often passing through last week's or last month's costs. This is not a pass-through at all, but a partial recovery with the difference sitting quietly in the carrier's margin. The fix is not a better contract; it is closing the distance between when the cost is incurred and what the actual cost was, and recovering those dollars based on that reality.
What execution-aligned pricing actually looks like
Closing the margin gap requires aligning what gets charged with what was actually spent at the moment the load moves, not at the end of the billing cycle or the next contract renewal. Fuel surcharge calculations need to be tied to the date of movement, not the billing date or the contract date.
The U.S. Energy Information Administration's weekly retail diesel index is publicly available, regionally sensitive, unbiased toward either shipper or carrier, and defensible to any shipper as to when and why the numbers changed. The discipline to apply it at shipment time, rather than invoice time, is where most operations fall short, and that gap in discipline is where the margin goes.
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Manual processes must also end. When diesel prices move, that change needs to flow through automatically, not on a schedule that made sense when markets were flat. Every manual update cycle introduces lag, and in a volatile market, lag is a guaranteed loss. Finally, the cost of a load needs to be understood before it is accepted. If the surcharge recovery on a given load does not cover the actual fuel cost in that lane on that day, the load is a loss before the driver turns the key.
The stakes for carriers who wait
Fuel costs are not settling down anytime soon. Elevated, unpredictable fuel prices are a planning reality, not a temporary condition. Carriers absorbing losses today are not just losing margin on the current quarter; they are training their shippers to expect rates that no longer reflect operational reality, which makes rate correction harder the longer it persists.
The competitive dimension matters, too. Carriers who build execution-aligned pricing into their operations are developing a structural advantage that compounds over time. They recover more of their actual fuel costs, make better decisions at the load level, and avoid the need to subsidize contract freight with spot revenue to make the numbers work. The carriers who treat this as a systems problem, rather than a negotiation problem, will look very different two years from now than those who do not.
