Every day, millions of small packages enter the United States without paying a cent in duties or taxes. They clear customs in seconds with almost no paperwork. The mechanism behind this is Section 321 of the Tariff Act — the de minimis provision that exempts shipments valued at USD 800 or less from duties and formal entry requirements. For e-commerce sellers and small importers, it has been a game-changer. But the rules are changing fast.
What is Section 321 de minimis?
Section 321 (19 U.S.C. § 1321) authorizes CBP to admit articles free of duty and tax when the aggregate fair retail value of all articles imported by one person on one day does not exceed USD 800. The provision exists to reduce administrative burden — it costs the government more to collect small amounts of duty than the revenue is worth.
Key parameters:
- Threshold: USD 800 fair retail value (raised from USD 200 in 2016)
- Frequency: One clearance per person, per day, from the same consignor
- Documentation: Informal entry or no entry required (Type 86 entry for tracked clearance)
- Duties and taxes: Zero — no duty, no MPF, no HMF
How Section 321 works in practice
The typical Section 321 flow:
- A package valued at USD 800 or less ships from overseas to a US recipient
- The carrier (FedEx, UPS, DHL, or a consolidator) files a Section 321 entry with CBP electronically
- CBP's Automated Commercial Environment (ACE) system processes the entry
- If no flags are raised, the package is released — often within minutes
- No duty, no Merchandise Processing Fee (MPF), no Harbor Maintenance Fee (HMF)
Compare this to a formal entry (shipments over USD 2,500 or requiring a customs bond), which requires an entry summary, duty payment, and often takes days to clear.
Who uses Section 321?
Section 321 has become critical for several business models:
Direct-to-consumer (DTC) e-commerce
Platforms like Shein, Temu, and AliExpress ship individual orders directly from overseas warehouses to US consumers. Each package is under USD 800, so no duties are owed. This model exploded after the threshold was raised to USD 800 in 2016.
Small business importers
Entrepreneurs sourcing samples, small inventory batches, or components can receive goods duty-free if each shipment stays under the threshold.
Returns and replacements
Companies shipping replacement parts or handling cross-border returns often use Section 321 for individual items.
The scale of Section 321
The numbers tell the story:
- 2016: ~340 million Section 321 shipments entered the US
- 2023: Over 1 billion Section 321 shipments (roughly 4 million per day)
- 2024-2025: Estimated 1.3+ billion annually
This volume — and the difficulty of inspecting so many packages — is exactly why regulators are tightening the rules.
2025-2026 policy changes: What is different now
The de minimis landscape has shifted dramatically. Here are the major changes:
China-origin goods restricted
The most significant change: goods subject to Section 301 tariffs (covering the vast majority of Chinese-origin products) lost Section 321 eligibility. This means:
- Packages from China valued under USD 800 now owe duties if the goods are covered by Section 301
- Platforms like Shein and Temu must either pre-pay duties or restructure their logistics
- Goods transshipped through third countries but originating in China are also affected (country of origin, not country of shipment, determines eligibility)
Enhanced data requirements
CBP now requires more information for Section 321 entries:
- 10-digit HTS classification (previously not required for de minimis)
- Country of origin declaration
- Seller/shipper information
- Product description with enough detail for risk assessment
This makes it harder to slip restricted goods through as generic "merchandise."
Type 86 entry formalization
The Type 86 entry — created specifically for Section 321 shipments that need Partner Government Agency (PGA) data — is now more widely required. It provides a middle ground between informal entry and full formal entry.
Eligibility rules: What qualifies for Section 321
To use Section 321, your shipment must meet ALL of these criteria:
| Requirement | Details |
|---|---|
| Value | Fair retail value ≤ USD 800 (including the item, but not shipping/insurance) |
| Frequency | One clearance per person per day from the same consignor |
| Recipient | Must be consigned to a single US person or address |
| Origin | Not subject to trade remedy duties (AD/CVD) or restricted tariff actions |
| Product type | Not in an excluded category (alcohol, tobacco, certain textiles) |
| Intent | Not structured to evade duties (no splitting larger orders into multiple packages) |
What is excluded from Section 321?
These goods cannot use de minimis treatment regardless of value:
- Goods subject to antidumping or countervailing duties — AD/CVD always applies
- Goods under Section 301 tariffs (most China-origin products as of 2025)
- Goods under Section 201 tariffs (solar panels, washing machines)
- Alcohol and tobacco — subject to TTB regulations regardless of value
- Certain textiles and apparel — quota-class merchandise
- Goods requiring formal entry — some FDA, USDA, and EPA-regulated items