The “Hidden Fees” Checklist: How to Read a 3PL Contract Without Getting Surprised

The “Hidden Fees” Checklist: How to Read a 3PL Contract Without Getting Surprised

How to read a 3PL contract without getting surprised. For many e-commerce brands, signing a 3PL contract feels like a necessary step toward scale. But it is also one of the easiest places for confusion and frustration to creep in.

Most fulfillment providers are not trying to hide fees. The issue is that 3PL contracts are written for operations teams, not founders. Important costs are often buried in rate sheets, footnotes, or sections that do not feel critical at the time of signing.

This guide breaks down the most commonly misunderstood 3PL fees and gives you a simple checklist to help you read a fulfillment contract with confidence.

Why 3PL Fees Feel “Hidden”

3PL pricing is rarely a single line item. Instead, it reflects how fulfillment actually works: labor, space, materials, and transportation all move independently.

What trips brands up is assuming that “pick and pack” covers everything. It rarely does.

A good contract does not just list prices. It explains when and how those prices apply.

The Hidden Fees Checklist

When reviewing a 3PL contract or rate card, pay close attention to the following areas.

Dunnage Fees: Paying for Protection

Dunnage refers to the materials used to protect products inside a package.

This can include:

• Bubble wrap

• Kraft paper

• Air pillows

• Foam inserts

Some 3PLs include basic dunnage in their pick-and-pack fee. Others charge per unit, per box, or by weight.

What to check in the contract:

• Is dunnage included or billed separately?

• Is there a standard allowance per order?

• Are different materials priced differently?

If your products are fragile or oddly shaped, dunnage costs can add up quickly.

Pick-and-Pack Minimums: The Floor You Still Pay

Pick-and-pack minimums are one of the most overlooked line items in 3PL agreements.

A warehouse may charge a minimum number of picks per day or per month, regardless of actual order volume. This protects the 3PL’s labor planning but can surprise brands with seasonal or uneven demand.

What to check in the contract:

• Is there a daily or monthly minimum?

• How is a “pick” defined?

• Do minimums change during peak season?

If your order volume fluctuates, minimums can materially impact your effective cost per order.

Fuel Surcharges: The Variable Cost Tied to Shipping

Fuel surcharges are typically applied to transportation-related services, especially parcel shipping and LTL freight. These charges fluctuate based on fuel prices and carrier policies.

They may appear as:

• A percentage added to shipping costs

• A separate line item on the invoice

• A carrier pass-through fee

What to check in the contract:

• How is the fuel surcharge calculated?

• Which carriers does it apply to?

• Is it capped or purely variable?

Fuel surcharges are normal, but understanding how they are applied prevents surprises during volatile fuel periods.

Other Fees Worth Reviewing Closely

While dunnage, pick-and-pack minimums, and fuel surcharges cause the most confusion, they are not the only areas to review.

Also look for:

• Storage minimums or overage fees

• Receiving and inbound handling charges

• Returns and restocking fees

• Account management or technology fees

• Peak season surcharges

None of these are inherently bad. They simply need to be understood upfront.

How to Read a 3PL Contract More Effectively

When reviewing a fulfillment agreement:

• Ask for a sample invoice based on your real order data

• Clarify which fees are fixed versus variable

• Understand how seasonality affects pricing

• Confirm what is included in core pick-and-pack rates

A transparent 3PL should be willing to walk through these details.

The Bottom Line

3PL contracts are not designed to trick brands, but they are designed to reflect operational reality. Fees that feel “hidden” are often just misunderstood.

Using a simple checklist and asking the right questions upfront can prevent frustration later and help you build a healthier, longer-term fulfillment relationship.

Clarity is not about paying less.

It is about knowing what you are paying for.