Did your business pay too much in customs duties?
You're not alone. Importers are sitting on millions of dollars in overpaid tariffs and most don't even realize it. The scary part? There's a hard deadline to claim that money back, and once it's gone… it's gone forever.
The best news is you can legally challenge those overpayments. It's known as a liquidation date protest and it's the importer's most potent weapon.
Here is how it works…
What you'll discover:
- What Is A Liquidation Date Protest?
- Why Importers Are Overpaying Customs Duties
- The 180-Day Window You Cannot Miss
- The Step-By-Step Recovery Method
What Is A Liquidation Date Protest?
Liquidation Date Protest: A protest filed with Customs seeking to contest the final amount of duties assessed against an imported shipment.
When CBP has "liquidated" an entry, that is their final decision regarding how much you owe. If you don't agree, the protest is your legal method to disagree. By protesting you can argue:
- Tariff classification: The incorrect HTS was applied. You have been assessed at a higher duty rate.
- Valuation issues: CBP overvalued your imported goods, leading to inflated duty payments.
- Country of origin: The goods meet the origin requirements for a Free Trade Agreement but duty free entry was not claimed upon entry.
- Misapplied tariffs: A tariff was charged that legally shouldn't apply to your product.
Pretty serious stuff, right?
The protest is actually a legal proceeding — and if you mess it up, you can lose a lot of money. That is why most importers hire an experienced tariff refund attorney to review the liquidation date protest documents and craft a winning legal argument before time runs out.
Why Importers Are Overpaying Customs Duties
The statistics speak for themselves. Industry estimates show that U.S. importers collectively pay over $100 billion in duties every year. Approximately $50 billion in refunds are left on the table every year.
That's billions on the table, folks. So what's going on? Why do importers pay too much? Here's a list of reasons why importers overpay like it's their job:
Misclassification
The number one reason. You (or your customs broker) entered the wrong HTS code upon importation and that code attracted a higher duty rate than the correct HTS code would have.
Tariffs Struck Down By Courts
Occasionally, an entire group or class of tariffs will be invalidated by the courts. When this occurs all businesses that paid tariffs are eligible for a refund.
Just last week. According to CBP data, the federal government will have amassed $134 billion in IEEPA-related tariffs by the end of 2025. That money could be refunded due to the Supreme Court decision.
Missed FTA Benefits
You met the eligibility requirements for USMCA or another trade agreement, but did not have the proper documentation on hand when you entered. You paid duties at the full rate.
Valuation Errors
CBP based your duty on the wrong value of your goods.
Each of these mistakes is fixable… But only if you act in time.
The 180-Day Window You Cannot Miss
Here is the part that trips up most importers.
After CBP has liquidated an entry, you have exactly 180 days to submit your protest. If you miss that deadline, you can never get your money back. According to CBP's official guidance, importers, brokers, or attorneys may protest decisions made by Customs regarding an entry during the 180-day period following liquidation as provided in section 514 of the Tariff Act of 1930.
Why is the liquidation date so important?
Liquidation is when CBP says "take it or leave it." Prior to that date you have options such as filing a simple Post Summary Correction (PSC). Once liquidated, a protest is your ONLY remedy.
This is why this is stressful… Liquidation typically occurs 314 days after your goods enter the US, unless CBP suspends or extends your entry. Time is running.
A few critical reminders:
- The 180 days starts from the liquidation date — not the entry date
- Once filed, CBP has up to 2 years to review your protest
- Denied. You have 180 additional days to file with the Court of International Trade
- A "protective protest" preserves your rights while you gather evidence
The Step-By-Step Recovery Method
Here's how to recover your overpaid customs duties.
Step #1: Audit Your Import Records
Begin with the most recent 5 years of imports. Retrieve all entry summaries from your ACE portal account and examine:
- The HTS code used
- The duty rate paid
- The country of origin claimed
- Total duty paid per entry
The more entries you audit, the more refund opportunities you'll uncover.
Step #2: Identify Your Refund Opportunities
For each entry, ask yourself:
- Was the right HTS code applied?
- Could a different classification have lowered the duty?
- Did the importer miss claiming a Free Trade Agreement benefit?
- Were any of these duties later struck down by a court?
Hundreds of import entries have been recovered lately worth millions of dollars plus interest.
Step #3: Determine The Liquidation Status
Each entry will fall into one of three buckets:
- Unliquidated — File a Post Summary Correction (PSC) before liquidation occurs.
- Liquidated within 180 days — File a protest immediately. This is your window.
- Liquidated more than 180 days ago — You may have to file in the Court of International Trade.
Step #4: File Your Protest
Protests must be submitted on CBP Form 19 or electronically through the ACE portal. Your protest should contain:
- The entry number and liquidation date
- A clear description of the goods
- The specific decision being protested
- A detailed legal justification
This is where most DIY protests go wrong. CBP wants a solid legal argument — not merely a demand for repayment.
Step #5: Wait For The Refund
Refunds, when approved, are issued directly to your bank account via ACH. CBP also pays interest on the amount of the overpayment from the date of deposit to the date of refund.
Final Thoughts
If you want your overpaid customs duties back, timing is everything. File your protest before the 180 day liquidation deadline.
Billions of dollars go unclaimed every year simply because importers are unaware of protest procedures or don't protest in time. Don't let that happen to your company.
To quickly recap:
- Audit your last 5 years of customs entries
- Track the liquidation date on every entry
- File your protest within the 180-day window
- Get professional legal help for complex claims
The funds exist. You just have to apply before it expires.