Start with who charged you. Customs fees are not one thing. A CBP duty, a courier disbursement fee, and a broker's paperwork charge are three different fights. One letter won't fit all of them. Find out who made the decision and who has your money before you draft anything.
If CBP assessed the duty, you may need a formal protest. A polite letter won't always protect your rights. If a private courier or broker added a fee, use that company's dispute process first. That split matters more than any template.
Find the Party That Controls the Charge
Read the invoice line by line. One shipment can carry a government duty, a private brokerage fee, and a storage charge. Those are three different fights.
| Charge on your invoice | Who usually controls it | First move |
|---|---|---|
| CBP duty, tax, or customs fee | U.S. Customs and Border Protection | Ask for the entry summary and check the liquidation date. Use CBP Form 19 if you are challenging a CBP decision. |
| Brokerage fee | Customs broker | Send a written billing dispute with your broker agreement and invoice. |
| Courier disbursement fee | Carrier | Use the carrier's billing dispute process. |
| Storage or demurrage | Port, warehouse, or carrier | Ask for proof of hold dates and the published tariff. |
| Foreign VAT or import tax | Foreign tax authority | Follow that country's refund or appeal rules. |
The invoice label is not enough. A courier may collect a government duty and also add its own disbursement fee. Ask which line went to CBP and which line stayed with the company.
Sample Letter to Dispute Customs Fees
This fillable letter works for a broker, a carrier, or a customs office. It asks for a specific fix and creates a paper trail.
[Your Full Name]
[Street Address]
[City, State, ZIP Code]
[Email Address]
[Phone Number]
[Date]
[Customs authority, broker, or carrier name]
[Office Address]
[City, State, ZIP Code]
Re: Dispute of customs fees for shipment [tracking or AWB number], Entry No. [entry number]
Dear [Sir or Madam]:
I am writing to dispute [duties, taxes, brokerage fee, or other charge] assessed on the shipment above. The shipment arrived on [date]. The amount charged was [amount]. I believe the charge is wrong because [short reason].
The key facts are:
- Contents: [describe the items]
- Declared value: [amount]
- Evidence shows: [invoice, order confirmation, photos, classification, exemption, or entry document]
- Correct treatment should be: [refund, waiver, reclassification, or reassessment]
I request [full refund, partial refund, waiver, corrected entry, or itemized explanation]. I attached [list documents]. Please confirm receipt and tell me what else you need.
Sincerely,
[Your Full Name]Send it by a method that creates a record. Certified mail works. A portal upload works. An email with a delivery receipt also works. Keep the proof.
When CBP Decided the Issue
A letter to CBP can fix a clerical issue or ask for review. It may not protect your legal rights. For a CBP decision on classification, value, rate, or liquidation, the usual path is CBP Form 19 under 19 U.S.C. 1514.
Deadlines are strict. The common protest window is 180 days from liquidation. Confirm the current rule before you rely on it. Miss that window and a strong argument may still lose.
You can write this yourself for a simple valuation error. Large commercial entries need a broker or customs attorney before the deadline runs.
The Old $800 De Minimis Line
Older customs letters often cite the $800 U.S. de minimis exemption. Don't copy that language without checking current law.
CBP has published interim final rules suspending the de minimis exemption for mail shipments and for merchandise arriving through all modes other than the international postal network. The details and effective dates matter. Read the notices before you cite them: Indefinite suspension for mail shipments and Indefinite suspension for other modes.
Some low-value or personal shipments may still move through informal entry under 19 CFR Part 143 Subpart C. That is an entry process, not a blanket exemption. Personal effects may qualify under Chapter 98, but eligibility depends on the facts.
Evidence That Helps
Thing is, a customs dispute is mostly a document contest. The agency or company wants to see why the number is wrong.
| Evidence | Why it helps | Limit |
|---|---|---|
| Original invoice or order confirmation | Shows the true price you paid | A screenshot alone may not be enough |
| Proof of payment | Connects you to the transaction | Bank records can be redacted for privacy |
| Entry summary or CBP Form 7501 | Shows how CBP classified and valued the goods | Ask the broker or carrier if you do not have it |
| Photos of the items | Shows personal use, condition, or quantity | Photos do not prove value by themselves |
| HS code or classification support | Challenges a wrong tariff code | Product descriptions must match the goods |
| Broker or carrier invoice | Separates government duty from private fees | Ask for an itemized breakdown |
A screenshot alone may not be enough. Pair it with the original invoice or order confirmation. If you do not have the entry summary, ask the broker or carrier for CBP Form 7501.
Refunds and Who Gets Paid
If CBP grants a refund, it may not come as a paper check. CBP's ACH Refund page says corporations and individual payees with an ACE Portal account must use the ACH Refund Authorization tab as of February 6, 2026.
A third party named on CBP Form 4811 also needs an ACE Portal account. That party must complete ACH refund enrollment. If you seek a waiver of electronic refund requirements, your written request must identify the importer, the pending refund, and the specific waiver provision under 31 CFR 208.4.
The refund rule itself sits in 19 CFR 24.36. It covers refunds of excessive duties, taxes, fees, or interest. It also explains how CBP issues them.
Short Templates
Duty Waiver or Exemption Request
[Your Name]
[Address]
[Date]
[Customs authority]
Re: Request for duty waiver or exemption, Entry No. [number]
Dear [Sir or Madam]:
I request a waiver or exemption from customs duties on [shipment details]. The shipment qualifies because [explain personal use, Chapter 98, or other basis]. I attached [documents].
Please tell me if you need anything else.
Sincerely,
[Name]Refund Request
Re: Refund request for overpaid customs fees, Entry No. [number]
I paid [amount] on [date]. The correct amount should have been [amount] because [reason]. I request a refund of [amount]. Attached are [proof of payment, invoice, entry summary, and correction].Broker or Courier Billing Dispute
Re: Billing dispute, tracking [number], invoice [number]
I dispute the [brokerage, disbursement, storage] fee of [amount]. The fee is not supported because [reason]. Please correct the invoice or send an itemized breakdown and the authority for the charge.A Workflow You Can Follow
- Identify who charged you. Check whether the amount went to CBP or stayed with the broker or carrier.
- Request the entry documents. Ask for the entry summary, CBP Form 7501, and an itemized invoice.
- Check the deadline. CBP protest deadlines are not the same as a broker's billing dispute window.
- Send the letter. Use the template above and attach evidence.
- File CBP Form 19 if the dispute involves a CBP decision. Do this before the protest window closes.
- Track the refund. If CBP approves money back, complete ACH refund enrollment if required.
- Escalate. Ask for a supervisor, a formal review, or a broker of record change only after you have a record.
Mistakes That Sink Claims
| Mistake | Better move |
|---|---|
| Paying first and disputing later | Dispute before payment if you can. Paying can reduce your leverage. |
| Missing the protest deadline | Put the liquidation date on your calendar the day you get it. |
| Writing a vague request | Ask for a refund, waiver, or corrected entry. Say the amount. |
| Forgetting the entry number | Use the entry number, tracking number, and invoice number. |
| Citing an old de minimis rule | Check the current Federal Register notices first. |
| Sending the letter to the wrong party | Send government issues to CBP and private fees to the company. |
| No follow-up | Follow up in writing. Ask for a response date. |
To be honest, most failed disputes are not lost on legal theory. They are lost because the letter never says what is wrong or what the reader should do.
Questions People Ask After the First Letter
Can I dispute a customs fee after I paid it?
Sometimes. If the charge is a private broker or courier fee, the company may still refund it. If CBP made a formal decision, paying does not always kill your protest rights, but it can affect your leverage. Check the deadline first.
Do I need a lawyer to write a customs dispute letter?
No for a simple personal shipment or billing error. Yes for a large commercial entry, a penalty notice, or a classification fight with real money at stake.
How long does a customs refund take?
It depends on the agency, the entry type, and whether the refund goes through ACH. CBP's ACH Refund page and 19 CFR 24.36 explain the process, but they do not promise a fixed number of days for every case.
What if the courier will not give me the entry documents?
Ask whether the amount was paid to CBP or kept by the courier. If the courier says it paid CBP, request the entry number and proof of payment. If it refuses, use the courier's formal complaint process and your state consumer protection office.
Find the entry number first. Then send the letter with proof. If CBP made the decision, check the Form 19 deadline before you do anything else.