USPS Price Changes in January 2027: What Shippers Need

Carrier Updates

11-11-2026

Two temporary USPS price increases are scheduled to end at 12 a.m. Central on January 17, 2027: the 2026 holiday peak prices and the 8% transportation-related increase. Both apply to Priority Mail Express, Priority Mail, USPS Ground Advantage and Parcel Select. USPS also plans to add a weekly fuel surcharge to those services in January 2027, and as of November 11, 2026 we have not seen USPS announce a new base price change for Ground Advantage or Priority Mail.

Which USPS Price Increases End on January 17, 2027?

Ecommerce shippers are paying two layers of temporary pricing on USPS packages this season. Both are set to expire on the same day.

1. The 8% transportation-related increase

What it is: An 8% increase to base postage, which USPS called a time-limited price change to bring its transportation costs in line with the market.
Products: Priority Mail Express, Priority Mail, USPS Ground Advantage and Parcel Select, retail and commercial. First-Class stamps and other products were not affected.
Dates: Took effect at midnight Central on April 26, 2026, and is scheduled to end at midnight Central on January 17, 2027.
What comes next: In its March release, USPS said it would decide at that point whether a different long-term approach is needed.

2. The 2026 holiday peak prices

USPS filed temporary holiday prices with the Postal Regulatory Commission on August 25, 2026, for the period from October 4, 2026, through January 17, 2027. The official release lists these commercial increases, which vary by weight and zone:

Priority Mail and Ground Advantage, Zones 1-4: $0.40 to $3.15 per package
Ground Advantage, Zones 5-9: $0.55 to $7.70
Priority Mail, Zones 5-9: $0.85 to $9.10
Priority Mail Flat Rate: $0.85, or $1.75 for Large Flat Rate Boxes
Priority Mail Express, Zones 1-9: $1.40 to $18.20
Parcel Select: $0.40 to $2.35

Retail prices at the Post Office counter have their own, slightly different increase ranges, listed in the same USPS release.

What Is Replacing Them?

On October 26, 2026, USPS shared plans for a weekly fuel surcharge starting in January 2027, according to Supply Chain Dive. Here is what has been reported:

Products: USPS Ground Advantage, Priority Mail, Priority Mail Express and Parcel Select, domestic only.
How it works: A percentage of base postage, adjusted weekly using U.S. Energy Information Administration fuel prices.
Fuel index: Value Added Resource reported that Ground Advantage and Parcel Select follow diesel prices, while Priority Mail and Priority Mail Express follow jet fuel prices.
Notice: New percentages are to be published 3 to 5 days ahead for diesel and 3 to 4 days ahead for jet fuel.
Contracts: Negotiated agreements may include custom terms.

There are some important unknowns. USPS has not published a starting percentage, an exact start date or the table that links fuel prices to surcharge levels. Value Added Resource also reported that USPS removed its fuel surcharge FAQ from PostalPro about two days after posting it, without giving a reason. Treat the details as planned but not final. For more on how the surcharge works, see our post on the USPS weekly fuel surcharge for 2027.

Will USPS Shipping Get Cheaper on January 18, 2027?

For the moment, nobody can say for sure. If both temporary increases end and nothing replaces them, base postage on covered packages would fall. But a weekly fuel surcharge is planned for January, and USPS could still announce other changes before then. The net effect depends on the starting fuel percentage and on any new price filings.

What we can say with confidence:

Holiday peak prices end on January 17, 2027, as filed.
The 8% transportation increase is scheduled to end the same day.
A weekly, variable fuel surcharge is planned for January 2027.
We have not found a filed January 2027 base price change for Ground Advantage or Priority Mail as of this writing.

How Should Ecommerce Shippers Plan for Q1 2027?

Budget a range, not one number

Model your USPS spend three ways: at today's prices, at base prices with no surcharges, and at base prices plus a fuel surcharge. Pull your volume by service first so you know how much of your spend is Ground Advantage versus Priority Mail, since the two may follow different fuel indexes.

Check rate tables on January 18

Shipping software and checkout apps should update automatically, but verify. Spot-check a few common shipments after the change so you are not overcharging or undercharging customers at checkout.

Watch your package dimensions

USPS bills dimensional weight on larger packages, generally those over one cubic foot, so box size can raise your price even on light items. A fuel surcharge calculated as a percentage of base postage adds to the cost of a package that bills at a higher weight or zone. Right-sizing boxes lowers both.

Compare carriers again

UPS raises rates an average of 5.9% on December 21, 2026, and FedEx does the same on January 4, 2027. With USPS changing in January too, carrier comparisons from last year are out of date. Rate shop by weight and zone using the new numbers once all three are published.

Review free shipping thresholds

If your threshold was set around 2026 postage, recheck it once you know Q1 costs. A weekly surcharge means your cost per order can move from week to week.

What About USPS Market-Dominant Mail?

The changes above apply to USPS shipping services, the competitive package products most ecommerce brands use. The 8% increase did not touch First-Class stamps, and the holiday prices applied only to the four package products listed. If you mail letters or flats, check USPS announcements for those products separately.

Frequently Asked Questions

When do USPS holiday prices end?

The 2026 holiday prices run from October 4, 2026, through 12 a.m. Central on January 17, 2027, for Priority Mail Express, Priority Mail, Ground Advantage and Parcel Select.

Is the USPS 8% increase permanent?

No. USPS described it as time-limited. It took effect April 26, 2026, and is scheduled to end January 17, 2027. USPS said it would then decide on a long-term approach, and it has since outlined a weekly fuel surcharge.

Is USPS raising Ground Advantage prices in January 2027?

We have not seen a filed base price change for Ground Advantage as of November 11, 2026. USPS does plan a weekly fuel surcharge on Ground Advantage starting in January 2027.

Where can I find official USPS price tables?

USPS publishes price tables on its Postal Explorer site, and its price filings appear on the Postal Regulatory Commission website.

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