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Protest Deadline Calculator Customs deadlines

Catch every customs deadline before it closes.

Enter a liquidation date for the 180-day protest window, or an entry date for every other clock, each with its statute.

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Protest Deadline Calculator
Example date

An entry liquidated on Friday, September 25, 2026. Change the date to run your own.

The legal date is the bulletin notice posted on cbp.gov, not your broker's courtesy notice. Find it in ACE.

Calendar-day math from the statutes on each row. Check your entry's actual dates in ACE and confirm with your broker or counsel, especially near a cutoff.

A working deadline calculator with two tabs: Already liquidated shows the 180-day protest deadline from the liquidation date; Not liquidated yet lists six deadlines from the entry date, from deemed liquidation and the PSC cutoff to the drawback and four-year limits, with days left.

What does the protest deadline calculator work out?

The dates by which you can still correct, protest or claim duty back on an entry.

Protest Deadline Calculator

The protest deadline calculator turns U.S. customs time limits into dates. From a liquidation date (CBP's final computation and assessment of the duties) it gives the 180-day deadline for a protest, the administrative challenge an importer files with CBP, under 19 USC 1514. From an entry date it gives the rest: the likely scheduled liquidation on ACE's 314-day cycle, deemed liquidation at one year, the Post-Summary Correction cutoff (300 days from entry or 15 days before scheduled liquidation, whichever is earlier), the one-year 1520(d) FTA claim and the five-year drawback limit. It shows the literal day count and flags weekends.

Made for
Customs brokers, compliance managers and anyone holding a liquidated entry
You give it
A liquidation date, or an entry date
You get back
Each deadline with its statute, weekday and days left

Which deadlines does it count?

Six clocks set by statute or regulation, and one CBP scheduling habit.

Deadline rules · Title 19
DeadlineTime limitSource
Protest180 days after the notice of liquidation19 USC 1514(c)(3); 19 CFR 174.12(e)
Post-Summary Correction300 days after entry, or 15 days before scheduled liquidation, whichever is earlier82 FR 50656, Nov 1, 2017; CBP Post Summary Corrections page, updated Aug 6, 2026
Scheduled liquidation (estimate)First Friday on or after day 314 from entryCBP's 314-day liquidation cycle, CBP Post Summary Corrections page, Aug 6, 2026
Deemed liquidationOne year after entry, unless extended or suspended19 USC 1504(a)
Extended liquidation limitFour years after entry19 USC 1504(b); 19 CFR 159.12
Post-importation FTA claimOne year after importation19 USC 1520(d)
Drawback claimFive years after importation19 USC 1313(r)(1)

Not in this calculator

  • Weekend and holiday rollover. It shows the literal day and flags weekends; CBP's practice of accepting the next business day is not written into 19 CFR Part 174.
  • Your actual dates. Use the liquidation and entry dates in ACE, not estimates.
  • Whether to protest, correct or claim at all. That is a decision for you, your broker or counsel.

A table of the deadline rules this calculator uses, each with its time limit and source: the protest, the Post-Summary Correction, the scheduled liquidation estimate, deemed liquidation, the four-year limit, the post-importation FTA claim and the drawback claim. Below it, what the calculator does not decide for you.

Questions about customs deadlines

How long do I have to file a customs protest?

180 days from the date of liquidation or reliquidation (19 USC 1514(c)(3)). An entry liquidated March 6, 2026 can be protested through September 2, 2026. The limit cannot be extended: a late protest is denied.

What date starts the 180-day protest clock?

The date of the bulletin notice of liquidation posted on cbp.gov, which 19 CFR 159.9(c)(1) makes the legal date. Your broker's courtesy notice does not set it. Take the date from ACE.

What if day 180 falls on a weekend?

CBP treats a filing due on a weekend or federal holiday as on time the next business day, but that is practice, not a rule in 19 CFR Part 174. The calculator shows the literal 180th day and flags weekends, so you can file before.

When will my entry liquidate?

Most consumption entries follow ACE's 314-day cycle, and automatic liquidations post on Fridays, so the first Friday on or after day 314 is a fair estimate. By law, an entry CBP has not liquidated within one year is deemed liquidated as entered (19 USC 1504(a)), unless the period was extended or suspended.

What is the PSC deadline: 300 days or 270 days?

300 days. A Post-Summary Correction must be filed within 300 days of entry, or up to 15 days before the scheduled liquidation date, whichever comes first. The 270-day and 20-day figures still found on some sites are from before November 2017.

Should I fix an entry by PSC or by protest?

By PSC while the entry is unliquidated, by protest after it liquidates. A PSC corrects the entry summary in either direction. Once the entry liquidates, the 180-day protest is the way to contest it. Track both dates for any entry with money at stake.

Do these deadlines run on a suspended AD/CVD entry?

No. While liquidation is suspended by statute or court order, the entry cannot be deemed liquidated and the protest clock has not started. When the suspension lifts, CBP must liquidate within six months of notice (19 USC 1504(d)), and that liquidation starts your 180 days.

I forgot to claim USMCA at entry. How long do I have for a 1520(d) claim?

One year from the date of importation, under 19 USC 1520(d). File a post-importation claim with the certification of origin; for qualifying goods it recovers the duty and the MPF.

How long do I have to file a drawback claim?

Five years from the date the goods were imported (19 USC 1313(r)(1)). The claim must be complete within the five years, not just started.

What does “entry summary is in final liquidation status” mean?

In CAPE it means the entry liquidated, or reliquidated, more than 80 days ago, so CAPE won't take it now. It does not mean the liquidation is legally final: within 180 days of liquidation you can still protest under 19 USC 1514(c)(3). Past 180 days the route is the Court of International Trade, and since October 6, 2026, CAPE Phase 3 takes finally liquidated entries of plaintiffs whose entries the court has ordered reliquidated. Ask counsel which applies.

Does the protest deadline decide my IEEPA refund?

Not on its own. CBP's CAPE refund process takes IEEPA entries that are unliquidated or up to 80 days past liquidation. Past 80 days, a protest filed within the 180 days keeps the liquidation from becoming final; CAPE does not take protested entries yet, and CBP lists them for a later phase. If CBP denies the protest, you have 180 days to sue at the Court of International Trade. The IEEPA refund estimator shows the routes open today.

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The IEEPA refund estimator shows what you likely paid and the route each entry can take now.

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