Air freight is the fastest commercial import mode and the strictest. Goods can release in hours after wheels-down, but every shipment still requires a licensed customs broker, a Form 7501 entry summary, full duty payment, and the same HTS classification scrutiny applied to ocean cargo. After the SCOTUS ruling on IEEPA tariffs, air-freighted entries from April 2025 through February 24, 2026 are eligible for refund through CAPE — same rules, same Phase 1 windows. Here's how clearance works, what you pay, and what to file.
How Air Freight Clearance Works
Three steps: pre-arrival filing, arrival processing, and release.
Pre-arrival: the airline transmits an air waybill manifest to CBP under the Air Cargo Advance Screening (ACAS) program before takeoff. The customs broker files a Form 7501 entry electronically through ACE, declaring HTS classification, entered value, and applicable duties.
Arrival processing: when the aircraft lands, CBP reviews entry data against the manifest. Entries flagged for examination go to a CES (Centralized Examination Station) — typically adding 24-48 hours. Most clean entries clear electronically without physical exam.
Release: once CBP releases the entry, the broker generates a release notification and the freight forwarder schedules delivery. End-to-end clearance for clean entries can be 2-6 hours after wheels-down. Examination-flagged entries run 1-3 days.
What You Pay
Air freight imports pay the same tariff stack as ocean imports — origin and HTS drive duty, not transport mode.
For 2026: 10% Section 122 baseline (effective February 24, 2026, expires approximately July 24, 2026), plus the MFN base rate for the HTS code (averages 3.4% across the schedule, but ranges 0% on most pharmaceuticals to 32% on some apparel), plus any applicable Section 232 (50% steel, 50% aluminum, 25% autos, 25% semiconductors, 50% copper, 10% lumber) or Section 301 (25-100% on covered Chinese goods).
Merchandise Processing Fee (MPF): 0.3464% of entered value, capped at $634.62 for formal entries. Harbor Maintenance Fee does NOT apply to air imports — that's an ocean-only fee.
On a $20,000 air-freight shipment of consumer electronics from Vietnam: $2,000 Section 122 + $0 MFN (electronics often 0%) + $69.28 MPF = roughly $2,069 in duty and fees. The same shipment from China would add 25% Section 301 = $5,000 more.
Role of the Customs Broker
Air freight clearance is not optional broker work — virtually every commercial air shipment is filed by a licensed customs broker. The broker classifies the goods under HTS, files the Form 7501 entry electronically through ACE, pays duties via ACH on behalf of the importer, and produces the release notification.
For importers with regular air freight volume, the broker is also the first line of defense against entry rejections, classification disputes, and AD/CVD exposure. Air freight is heavily used for high-value, time-sensitive shipments (electronics, pharmaceuticals, medical devices, fashion) where misclassification produces real money in back-charges.
If you don't have a broker yet, see /find-a-customs-broker for what to ask. For clearance-only relationships, expect $75-200 per entry; volume importers negotiate per-entry rates lower.
IEEPA Refund Eligibility for Air Freight Entries
Every air-freighted entry filed between April 5, 2025 and February 24, 2026 that paid IEEPA reciprocal tariff duty is eligible for refund through CAPE under the same rules as ocean entries. Phase 1 covers unliquidated entries plus entries within 80 days of liquidation.
Air freight entries tend to liquidate faster than ocean entries because the goods clear and release sooner — meaning the 80-day liquidation window is closing faster on air-freighted entries than on ocean cargo from the same period. If you have air-freighted entries from late January or February 2026 that have already liquidated, those are bumping the 80-day cutoff right now.
Section 232 surcharges (steel, aluminum, autos, semiconductors, copper, lumber) and Section 301 duties on Chinese goods are NOT refundable. Only the IEEPA reciprocal portion.
What Air Freight Importers Should Do This Week
Five actions, in order:
1. Pull every air-freight entry summary number from your broker for the IEEPA period — sorted by liquidation date, oldest first.
2. Identify which entries are still within 80 days of liquidation. Those are your Phase 1 priority.
3. Confirm your broker is actively filing CAPE Declarations. If not, see /find-a-customs-broker.
4. Confirm ACH enrollment is active under your Importer sub-account in ACE. Without ACH, the refund cannot be paid — CBP issues no paper checks.
5. File before the June 7, 2026 Federal Circuit appeal deadline. A government appeal could trigger a stay that halts refund processing for filings still in the queue.
Key Takeaway
Air freight customs clearance moves fast, but the rules are the same as ocean cargo: licensed broker, Form 7501 entry, full duty payment, HTS classification scrutiny. For 2026, every air-freighted IEEPA entry is eligible for refund through CAPE under the same Phase 1 rules. Pull your entry data, prioritize the entries closest to the 80-day window, and file before the June 7 appeal deadline. The /find-a-customs-broker guide covers how to engage a broker for the CAPE filing, and /tools/refund-estimator gives you a quick refund estimate before you start.
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