If a U.S. customs charge looks wrong, send the dispute to the right party before asking for a refund. A duty or tax assessed by U.S. Customs and Border Protection usually requires a formal protest tied to an import entry. A courier's brokerage, advancement, or handling fee is a separate invoice dispute.

Start by matching every line on the bill to its source. The person who receives a package isn't always the importer of record, so the courier or broker may control the customs entry and any refund process.

This guide covers U.S. imports. UK, EU, Australian, and Canadian customs deadlines are different and shouldn't be substituted for the U.S. rules below.

CBP charge or courier fee?

Charge on the bill First place to dispute it
Customs duty or tariff assessed on an entry CBP protest, usually handled by the importer of record or an authorized filer
CBP-assessed tax, fee, or interest CBP protest or refund process, depending on the entry decision
Brokerage, clearance, disbursement, or advancement fee Courier or customs broker, under the invoice and service terms
Shipping charge or duty-related promise made by a retailer Retailer, based on the order and delivery terms
State or local tax charged separately from customs The seller, carrier, or applicable state tax authority

A courier may pay CBP first and then collect the amount from you. That creates two separate questions:

  1. Was CBP's assessment correct?
  2. Did the courier bill the correct amount and add only the fees allowed by its terms?

A complaint to the courier doesn't automatically change CBP's entry. A CBP protest doesn't automatically cancel a courier's separate service fee.

What a U.S. customs fees complaint usually means

The formal U.S. process is a protest, not a general customer-service complaint. Under 19 U.S.C. § 1514, certain CBP decisions, including liquidation of an entry, become final unless challenged through the required process.

Common protest grounds include:

For modern U.S. entries, 19 CFR Part 174 generally provides 180 days after liquidation or reliquidation to file a protest. Older entries and certain other CBP decisions can have different rules. The delivery date, the date you opened the package, and the date on a courier invoice aren't automatically the protest deadline.

Ask the broker or courier for:

If you can't identify the entry or deadline, don't wait for an informal email response. Ask the filer or a qualified customs professional to confirm which correction or protest route applies.

Evidence checklist for disputing customs charges

Organize the evidence around the exact line item you want changed.

Billing and payment records

Keep copies of:

If the invoice combines duty, tax, and courier fees, ask for an itemized breakdown before calculating the refund you want.

Entry records

Request the entry summary, duty worksheet, and any liquidation notice available to the importer of record. The entry number and line number are more useful than a tracking number alone.

If a courier filed the entry in its own name, ask whether it acted as importer of record or merely as your customs agent. That distinction can affect who files the protest and who receives a CBP refund.

Proof of what the goods are

For a classification dispute, collect evidence that describes the product accurately:

A product listing that only says “equipment” or “accessory” may not be enough. Explain the features that support the classification you believe is correct.

Proof of value

Use:

Don't rely only on a current online price. The relevant facts may include the sale terms and other amounts connected with the import transaction.

Origin and preference documents

If the duty should have been lower because of the goods' origin or a trade preference, provide the applicable certificate, manufacturer statement, or other origin record. The country from which a package was shipped may not establish where the goods were manufactured.

A calculation sheet

Create a short table with:

Item Amount billed Amount supported by your records Difference
Duty $___ $___ $___
CBP-assessed tax or fee $___ $___ $___
Courier service fee $___ $___ $___
Total disputed amount $___ $___ $___

This makes it easier for the recipient to see whether you're challenging the customs assessment, the courier's fee, or both.

How to file a CBP protest

1. Confirm the entry and deadline

Find the liquidation date and identify the decision being challenged. For a current entry, use the 180-day period in Part 174 as a starting point, but verify the rule for your specific entry.

If the entry hasn't been liquidated, ask the broker whether a post-entry correction, amendment, or another procedure is available. Don't assume that waiting for liquidation is the safest option.

2. Identify the proper filer

The importer of record or an authorized agent generally handles the formal entry challenge. A consumer who paid a courier may not be the person listed on the entry.

Ask the courier or broker in writing:

3. State one clear ground for each disputed line

A useful protest identifies:

Avoid a general statement such as “the customs bill is too high.” Explain exactly what was recorded incorrectly and show the replacement calculation.

4. Use the required filing route

A protest is commonly prepared on CBP Form 19 or submitted through an authorized electronic filing process. Follow the current instructions for the port or filing system handling the entry. If a broker submits it for you, obtain a copy of the final filing and confirmation of the submission date.

Keep a complete copy of everything submitted. A courier's internal complaint number is not necessarily proof that a CBP protest was filed.

5. Track the decision

CBP's protest review and notice procedures are addressed in 19 U.S.C. § 1515. If CBP requests clarification, answer through the approved channel and keep the response with your evidence.

Silence isn't approval. The statute includes procedures for accelerated disposition and deemed denial in specified circumstances. If the protest is denied or treated as denied, a possible court challenge has strict requirements and is usually a matter for a customs attorney.

6. Understand how a refund is paid

When an excessive duty, tax, fee, or interest amount is established, 19 CFR § 24.36 governs the refund process. The refund is prepared for the person to whom it is due, and a CBP Form 4811 can authorize payment to someone else through an approved process.

That means a refund may not automatically be sent to the consumer who paid a courier invoice. If the courier or broker was the importer of record, ask how it will account for and pass along any approved refund.

How to dispute a courier's customs invoice

Contact the courier's billing or customs department when the problem concerns a brokerage fee, an advancement charge, an incorrect declared value, or a duty amount the courier calculated incorrectly.

Request an itemized response that identifies:

Send the documents that support your position. If the courier used the wrong product description, provide a corrected invoice and technical description. If it used the wrong value, include the order confirmation and proof of payment.

Ask for a written answer to these two questions:

  1. Which part of the bill will the courier review or credit?
  2. Does the customs assessment require a formal CBP protest by the importer of record?

If a payment deadline is approaching, ask whether collection can be paused while the dispute is reviewed. Don't assume that an open customer-service case extends the CBP protest deadline or stops interest and collection activity.

If the disputed amount is a separate courier service charge billed to a credit card, you can ask the card issuer about its billing-dispute process. A card dispute doesn't replace a CBP protest and shouldn't be used to mislabel a valid government assessment as an unauthorized transaction.

Sample message to a courier or broker

Use this as a starting point, then attach your documents:

Subject: Dispute of customs invoice [invoice number] for tracking [number]

I dispute the following amount on the customs invoice for shipment [tracking number]:

Disputed line: [duty, tax, brokerage fee, or other charge]
Amount: $[amount]
Reason: [incorrect value, classification, duplicate charge, or unsupported service fee]

Please provide:
1. The customs entry number and importer of record;
2. The declared value, classification, and origin used;
3. The amount paid to CBP;
4. An itemized list of courier fees and their applicable terms; and
5. The process for correcting the entry or issuing a credit.

Attached are the order confirmation, commercial invoice, proof of payment, product information, and my calculation of the disputed amount.

Please confirm whether this request has been referred for a CBP protest and identify any deadline that applies.

Name:
Address:
Phone or email:

A simple example of separating the dispute

Suppose a courier invoice totals $146:

The order record shows a purchase price of $120, while the entry summary lists a value of $220. A strong first response would ask for the entry and explain the value discrepancy with payment evidence. It would separately ask the courier to identify the contractual basis for the $30 brokerage fee.

If the entry shows the wrong value, the importer or authorized filer may need to pursue the CBP correction or protest. If the entry is correct but the courier added an unrecognized service fee, the dispute belongs with the courier. One complaint may address both issues, but the requested remedy should identify which party must act.

Situations that use a different refund route

Not every refund request is a customs protest.

Common mistakes that weaken a complaint

Frequently asked questions

Should I complain to CBP or the courier?

Challenge a CBP-assessed duty, tax, fee, or entry calculation through the appropriate entry process. Challenge brokerage, advancement, clearance, or handling charges with the courier or broker. If you're unsure, request the entry record and an itemized invoice first.

Is the U.S. customs protest deadline 90 days or 180 days?

For modern U.S. entries, Part 174 generally uses 180 days after liquidation or reliquidation. Older entries and different types of CBP decisions may follow different rules. Confirm the deadline from the entry record rather than relying on a general number.

Can I file a protest if the courier paid the duty?

Possibly, but the importer of record and authorized filer matter. Ask the courier who filed the entry and how an approved refund would be passed to you.

Will a credit card chargeback reverse a customs duty?

Not by itself. A card issuer's billing process is separate from the CBP protest process. Use it only to raise a genuine dispute about the merchant or courier transaction, not as a replacement for challenging a valid customs assessment.

What should I do if CBP denies the protest?

Read the denial carefully, preserve the notice and filing record, and obtain advice from a qualified customs professional if the amount or issue is significant. Court review has strict procedural and time requirements.

This is general consumer information, not legal advice. Before contacting CBP or a courier, write down the entry number, liquidation date, disputed line, requested refund, and the document that proves each part of your claim.