Guides  /  Carrier Surcharges
Guide

Carrier surcharges, explained.

The fees on top of your base rate, and what drives them.

Surcharges and accessorials are the fees carriers add on top of the base shipping rate. Together they often rival the base rate itself, and they are the easiest place to overpay without noticing.

Common surcharges
ResidentialPer-package fee
Additional handlingSize/weight/packaging
Peak / demandSeasonal, by service
FuelPercentage, weekly
Each carrier publishes its own schedule, updated regularly.

What surcharges are

The base rate covers moving a standard package between two points. Everything else, residential delivery, oversized handling, delivery-area fees, fuel, and seasonal peak charges, is a surcharge or accessorial added on top. They are where carriers recover cost and margin, and where shippers leak money.

The surcharges that matter most

Residential delivery

Applied to nearly every direct-to-consumer shipment. Small per package, but it scales with volume.

Additional handling

Triggered by size, weight, packaging, or shape. Easy to misapply, and worth auditing closely.

Peak and demand

Seasonal surcharges that hit specific services and windows, hardest in Q4 when volume peaks.

Fuel

A percentage surcharge that resets weekly and applies to the base rate plus many accessorials, so it compounds.

How to reduce surcharge cost

  • Audit every invoice line for misapplied or duplicate fees.
  • Negotiate caps, waivers, and discounts on the accessorials you incur most.
  • Model peak and demand exposure before the season starts.

The short version: surcharges can rival your base rate. Audit them line by line and negotiate the ones you incur most.

Frequently asked

Why are carrier surcharges so high?

Surcharges are how carriers price cost factors beyond the base move, and how they grow revenue between rate increases. Many are negotiable or auditable, which is where shippers recover money.

Can surcharges be negotiated?

Yes. Caps, waivers, and discounts on high-frequency accessorials are negotiable, and misapplied surcharges can be disputed. ShipScience does both against your shipment data.

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