Peak Season just got repriced. The rest of the market goes next.

On July 22, the first of the national parcel carriers published its 2026 peak season demand surcharges, and the number that matters to most shippers? 23%. That’s how much the holiday-peak surcharge rose year over year, to $0.80 from $0.65. And that fee has been climbing like this for a while now: it sat near $0.50 two seasons ago, which means the cost of delivering the same package during peak week has risen close to 60% in two years. This isn’t a one-time correction, it’s a pattern, and 2026 is the third straight year of it. Across the rest of the published table, the core per-package fees rose 12% to 23% over last year’s highs.

This is huge news for every shipper and yet there was no press conference. The schedule went up on a service updates page, and it will quietly reshape the fourth quarter for every shipper. And there is a number here that only shows up in the platform data: a year ago at this same point, operators on our network were seeing essentially flat parcel costs, up about 0.1% year over year. Now that figure is 12.8%.

One carrier’s holiday pricing is now fixed. The rest of the market has not shown its hand, and that unknown is what shippers have to plan around this week.

What was actually announced

The new surcharges phase in over two waves. Additional Handling, Oversize, and Ground Unauthorized fees begin September 28; Express, Ground Residential, Home Delivery, and Ground Economy fees follow on October 26, with the most expensive window running November 23 through December 27 and the whole schedule lifting January 17, 2027.

Some changes are simply price. Ground Economy rises 14.1% to $4.05 per package at peak. But other changes are structural, the Express demand fee is now tiered by speed of service, where it used to be a flat charge. And the largest increases fall on packages that already carry special handling: the peak Additional Handling fee reaches $11.85 and the Oversize charge reaches $117.25. Both are charged on top of the base rate, not instead of them.

None of this is out of character. The major carriers run the same dynamic, volume-indexed surcharge model every year, and in a normal year it barely moves the needle. Across the last two peak seasons, the announced surcharges added only about a point to what operators on our network actually paid from October through mid-December. The impact was mitigated by better planning, rate shopping, order consolidation and other strategies. 

What is different this year is the base. Realized parcel costs sat between 2% and 4% year over year at this point in each of the last two seasons. Today they are up 12.8%, before a single peak surcharge takes effect. The model is familiar, the starting line is not.

The window that is still open

For shippers whose volume rides on the carrier that has announced, the negotiating leverage that existed before July 22 has largely closed. The useful work now is modeling the published schedule, not contesting it. But the shippers whose volume rides on carriers that have not yet announced still have the one thing that disappears the moment a schedule publishes: time to move before the price is set.

Last year the second national schedule did not land until late August, so the shippers watching that carrier have weeks of runway left. Weeks might not seem like enough time, but it is the difference between planning and reacting.

Three moves while the market is half-known

1. Model the published schedule against your own volume, not the headline rate. The demand fee most shippers pay is calculated dynamically, using their holiday shipping volume against a summer baseline week. The baseline period has already passed, which means shippers can calculate their own starting point now. Shippers who model at the package level, by service and week, will find their real exposure sits well above or below the 23% headline depending on how their peak curve is shaped.
2. Recheck dimensions before peak, not during it. The surcharges that escalated most are the special-handling fees, and those are partly self-inflicted. A holiday bundle, a gift set, or a slightly oversized box can push a shipment into a category carrying an $11.85 or $117.25 peak fee. An hour of packaging review in September is cheaper than a season of misclassified parcels.
3. Use the known schedule to pressure-test the unknown ones. One carrier has now set the market’s ceiling for the season. When the remaining schedules publish, they will publish into a market that already has a public benchmark. Shippers who model their exposure to the published schedule now will be ready to compare the moment the next number lands, instead of starting from zero in the middle of peak.

The typical operator on our network enters peak season leaner, roughly 6 fewer days of inventory than in 2025, while moving 8.8% more units, which likely means expedited freight is the default penalty for waiting. And one input outside every carrier’s table is still climbing: the U.S. Energy Information Administration projects on-highway diesel will average $5.36 a gallon this quarter, up almost two dollars from a year ago, a gain of roughly 50%. This means fuel surcharges are coming to every national carrier, no matter whose logo is on the truck.

The first schedule is set. The rest of the market goes next. The only open question is whether you have the ability to model your rates by the week and package before it does.

This analysis draws on live platform data from Deposco, a cloud-native supply chain platform processing $84 billion in annual GMV across 4,900+ brands, retailers, and 3PLs. The full Q2 2026 findings, including four on-record directional calls for Q3, are published in Commerce Signal, Deposco’s quarterly intelligence brief on US ecommerce fulfillment.