Foreign trade zone entries and stacked tariffs: privileged foreign status, the rate date and the audit check

How do you find zone entries in an entry export?

Zone goods reach the US market on their own entry type. The Form 7501 instructions (revision 02/26) list code 06, "Foreign Trade Zone Consumption", in block 2 among the consumption entries, and code 26, "Foreign Trade Zone Admission", among the warehouse entries. Three more fields mark a zone entry:

• Block 8, importing carrier, carries "FTZ" followed by the zone number when goods arrive in the customs territory from a zone.
• Block 11, import date, is left blank when the import date is not the date of removal from the zone, under 19 CFR 146.63.
• Block 16, IT number, need not be recorded when goods moved into the zone on an in-bond and are later removed.

Filter the export on entry type 06 and you have the population. Every other check on this page runs on those lines. The full list of entry type codes, and what each one changes about deadlines and corrections, is in entry types and in-bond movements.

A zone entry also carries less paper than it should. The zone admission (CBP Form 214), the status the goods were given and the date of that application usually sit in the zone operator's inventory system, not in the broker's entry export. An audit of type 06 lines needs both: the entry line and the admission record behind it.

What does a foreign trade zone actually change about duty?

Under 19 U.S.C. 81c(a), foreign goods can be brought into a zone and stored, sold, assembled, manipulated or manufactured "without being subject to the customs laws of the United States", and then exported, destroyed or sent into the customs territory. Only when they are sent into the customs territory do they become "subject to the laws and regulations of the United States affecting imported merchandise". Three things follow:

1. Deferral. No duty is deposited until each entry for consumption. Goods exported from the zone pay none.
2. A status choice. The duty owed on entry depends on the status the goods were given in the zone, which decides when and in what condition they are classified.
3. Production limits. Production in a zone needs prior authorization from the Foreign-Trade Zones Board, and under 15 CFR 400.14(b) that authority is limited to "the specific foreign-status materials and components and specific finished products" in the notification or application, including any restrictions the Board attached.

The second point is where stacked tariffs changed the arithmetic.

What do privileged and nonprivileged foreign status mean for the rate?

The regulations give foreign goods in a zone one of two statuses, and domestic goods a third.

Privileged status is binding: 146.41(e) says it "cannot be abandoned" and stays with the goods even after manipulation or manufacture. Nonprivileged status is what makes the classic zone saving possible. When imported components are made into a finished product in the zone and the finished product's rate is lower, an NPF entry pays the finished product's rate on the foreign content.

Which Chapter 99 actions require privileged foreign status?

Most of them, and each says so in its own instrument. Where an action requires PF, the goods are classified as admitted, so the component's own Chapter 99 duty follows it out of the zone and the finished-product route closes for that duty.

Each instrument excepts goods eligible for domestic status under 146.43. The List 1 and List 2 notices are the only Section 301 China notices cited here, each with its own start date; for goods on a later list, read the notice and Chapter 99 note for that list rather than assuming the List 1 date. IEEPA duties stopped being collected for goods entered from February 24, 2026 (CSMS 67834313), so that row matters for older entries and for refunds, which IEEPA refunds: which entries qualify covers.

Did privileged foreign status freeze the old Section 232 rate?

Not for the metal duties. Three proclamations reach goods already sitting in a zone under privileged status:

• Proclamation 10896, clause 9: steel articles and derivatives admitted in privileged status before March 12, 2025 "will likewise be subject upon entry for consumption" to the new Section 232 headings.
• Proclamation 10947, clause 3: the steel articles and derivatives in its Annex II (the note 16 headings) admitted under privileged foreign status before June 4, 2025 "shall be subject upon entry for consumption made on or after" that date "to the provisions of the tariff in effect at the time of the entry for consumption". The rate rose from 25 to 50 percent on that date for most countries.
• Proclamation 11021, clause 12: products "admitted in 'privileged foreign status' prior to the effective date of this proclamation will be subject upon entry for consumption to any ad valorem rates of duty" under the applicable subheading. From April 6, 2026 the duty applies to the full customs value, regardless of metal content (clause 1).

CBP's steel guidance of June 3, 2025 (CSMS 65236374) turned clause 3 into filing instructions: steel articles admitted in PF before June 4, 2025 and entered on or after it are reported under 9903.81.88 (9903.81.95 for the United Kingdom), and derivative products under 9903.81.93 (9903.81.99 for the United Kingdom), with 9903.81.91 for derivatives outside Chapter 73 and 9903.81.92 for derivatives of US-melted steel. A type 06 line carrying the ordinary heading, or the pre-June rate, on goods admitted before June 4 is the first thing to look for. The same logic is laid out for goods in transit in does a new tariff apply to goods already in transit.

Worked line: steel admitted in May, entered in June

Hot-rolled flat steel of Vietnamese origin, HTS 7208.39.00, general rate Free in the current HTSUS. Assume no antidumping or countervailing order covers it.

1. May 20, 2025: admitted to the zone. Because it is a steel article admitted after March 12, 2025, Proclamation 10896 clause 9 requires privileged foreign status. The Section 232 rate on that date is 25 percent under 9903.81.87.
2. June 16, 2025: entered for consumption on a type 06 entry. Dutiable value under 19 CFR 146.65(b)(2), the price in the transaction that caused admission to the zone less international freight and insurance: $180,000.
3. What the entry should show: HTS 7208.39.00 at Free, plus 9903.81.88 at 50 percent, because Proclamation 10947 clause 3 applies the tariff in effect at entry. Section 232 duty: $180,000 × 50% = $90,000.
4. What a frozen-rate filing shows: 9903.81.87 at 25 percent on the theory that PF fixed the May rate: $45,000.
5. Difference: $45,000 underpaid, plus interest from the date the deposit was due. No IEEPA reciprocal duty applies to either version, because EO 14257 section 3(b)(ii) excluded steel articles subject to Section 232.

The finding runs the other way too. A line entered on or after June 4, 2025 for goods admitted in PF before that date that was filed at 50 percent under a derivative heading, when the goods were steel articles under 9903.81.88, carries the right rate but the wrong heading, and a derivative line charged on full value before April 6, 2026, when only the steel content was dutiable, is an overpayment. To check the stack on any line for its entry date, use the duty calculator; why your entry shows the wrong duty stack works through the content-versus-full-value lines.

What does the audit check on zone withdrawals?

Run these against every type 06 line, with the zone admission record beside it.

1. Status per line. Is the zone status on the admission record PF, NPF or domestic? Goods covered by any action in the table above, admitted on or after its date, should be PF.
2. Classification basis. PF lines are classified as admitted; NPF lines as entered. A PF line classified as the finished product, or an NPF line of covered goods admitted after the PF date, is a finding.
3. Rate date. For PF lines, the rate is the one in force when status was applied for, except where the instrument overrides it, as Proclamations 10947 and 11021 do for Section 232.
4. Chapter 99 heading. Check the heading against the admission date and entry date: the CSMS 65236374 headings for goods admitted before June 4, 2025, and the Proclamation 11021 structure for entries from April 6, 2026.
5. Value. Check the dutiable value against 146.65(b)(2): the price in the transaction that caused admission into the zone plus the statutory additions, less international freight, insurance and US inland freight. The zone sale price is the total zone value, not the dutiable value.
6. Weekly entries. Where removals were made under a weekly estimated entry (19 U.S.C. 1484(i), or the narrower 19 CFR 146.63(c)), check the summary against actual removals: units estimated but not removed are not entered. Check the MPF once per weekly entry against the fiscal-year minimum and maximum, not once per shipment; the limits for each year are in MPF, HMF and other fees on Form 7501.
7. Production scope. Compare the materials and finished products on the line with the Board's production authority under 15 CFR 400.14(b).

Each finding goes into the same correction routes as any other entry: a post-summary correction before liquidation, a protest within 180 days of liquidation, or a prior disclosure for an underpayment. The windows are in how long you have to fix a past entry. Zone entries can also be flagged for reconciliation; CBP reconciliation for flagged entries explains how. Status elections and zone procedures are filed by your broker and zone operator; confirm any change with them or with customs counsel.

What should you do next on your own entries?

Pull every type 06 line for the period, join each to its zone admission record by part and date, and add the status and the PF application date. Sort the lines by the dates in the table above. The lines admitted before an action's date and entered after it, and the covered lines without PF status, are where the money sits.

TariffSense reads entry summaries and broker exports and checks each line's Chapter 99 stack against the measures in force on its entry date, flagging lines where the heading or rate does not match, in both directions. The zone status and admission date come from your zone records; the post-entry audit guide covers the rest of each line.