USPS Adds Weekly Fuel Surcharge in 2027, Matching FedEx and UPS

The U.S. Postal Service will levy a weekly-updated fuel surcharge on its core package services starting January 2027, the agency announced Monday. The move puts USPS pricing directly in line with FedEx and UPS, both of which already index fuel fees to diesel and jet fuel costs.

The surcharge applies to USPS Ground Advantage, Priority Mail, Priority Mail Express and Parcel Select — the domestic products that carry most of the agency's parcel volume. Negotiated service agreements "may have customized language" on fuel surcharge applicability, the Postal Service said, leaving room for large-volume shippers to bargain different terms.

How will the fee be calculated?

The surcharge will be a percentage of the base postage amount, recalculated weekly from diesel and jet fuel prices published by the U.S. Energy Information Administration. It covers domestic shipments only. For diesel-applicable shipments, USPS will publish the percentage three to five days before it takes effect; for jet-fuel shipments, three to four days ahead.

"Shippers will receive updates electronically, through API or other means, for current/upcoming percentages to be applied, along with effective dates," the agency said. "Historical data will be posted publicly."

That transparency matters for distributors and e-commerce fulfillment operations that route volume through USPS. Weekly percentage updates mean landed shipping costs will fluctuate on a seven-day cycle, forcing cost models and customer freight pricing to absorb fuel variance that USPS previously held flat.

Why is USPS doing this now?

The surcharge is the latest step in the Postal Service's alignment with FedEx and UPS pricing practices. Both competitors levy fuel fees tied to the same EIA indices. Through 2026, the Iran war and Strait of Hormuz disruptions have driven fuel costs up, and those surcharges have pushed delivery prices higher for shippers across the market.

USPS has already tested shippers' tolerance for higher rates. In April it imposed an 8% price increase on several services, running through Jan. 17, 2027, in response to surging transportation costs. The agency framed it as deliberately restrained: "this charge is less than one-third of what our competitors charge for fuel alone," and it would "provide a necessary bridge to a permanent mechanism" for meeting the universal service obligation in a financially sustainable way.

The pricing strategy is producing measurable revenue results. Package shipping revenue rose 7.7% year over year in the third quarter, even as volume fell 3.4% in the category — yield gains more than offsetting lost tonnage. The quarter still ended in a net loss, the agency's latest in a continuing string.

What does this change for shippers?

From January 2027, the last major U.S. parcel carrier without a fuel surcharge will have one, removing a cost-stability advantage that Ground Advantage and Parcel Select held over FedEx and UPS ground products. Shippers lose predictable postage but gain an indexed mechanism that falls when fuel prices fall — the same trade their FedEx and UPS contracts already carry.

The pricing trajectory is unlikely to stop there. Postmaster General David Steiner told the USPS board of governors in August: "All of the statistics and results show that we have yet to cross the point that we should be changing our pricing strategy, and that we have more price to take in the marketplace. It would be financially irresponsible of us not to do so."

With the temporary 8% hike expiring Jan. 17, 2027, and the fuel surcharge debuting the same month, shippers should expect the new indexed fee to arrive on top of — not instead of — USPS's elevated base rates.