HS Code for Mailing Envelope (US)
PRIMARY CLASSIFICATION RESULT (US)
The primary 6-digit Harmonized System (HS) code for mailing envelope is 3923.21 (Articles for the conveyance or packing of goods, of plastics; stoppers, lids, caps and other closures, of plastics, Sacks and bags (including cones), Of polymers of ethylene). Under the 2026 US HTS, representative general duties are 3% [Official Source].
Classification guidance note.
Candidate Subheadings & Disambiguation Matrix
| HS Subheading | WCO Subheading Description | Disambiguation Rule / Notes | Action |
|---|---|---|---|
| 3923.21 | Articles for the conveyance or packing of goods, of plastics; stoppers, lids, caps and other closures, of plastics, Sacks and bags (including cones), Of polymers of ethylene | Sacks and bags (including cones), Of polymers of ethylene | View 3923.21 → |
Official Primary Sources & Authority References
USITC HTS Database ↗
USITC official Harmonized Tariff Schedule for Mailing Envelope.
CBP CROSS Rulings ↗
CBP e-Rulings database for Mailing Envelope classification precedents.
WCO Nomenclature ↗
World Customs Organization international 6-digit Harmonized System standard.
Mailing Envelope Frequently Asked Questions (FAQ)
What is the official 6-digit HS code for Mailing Envelope?
The primary 6-digit Harmonized System (HS) code for Mailing Envelope is HS 3923.21 (Articles for the conveyance or packing of goods, of plastics; stoppers, lids, caps and other closures, of plastics, Sacks and bags (including cones), Of polymers of ethylene).
What is the US general import duty for Mailing Envelope?
Under the 2026 US HTS, representative MFN general duty rates for Mailing Envelope under HS 3923.21 are 3%.
Are there alternative candidate subheadings for Mailing Envelope?
Yes. Depending on state (green vs. roasted, decaffeinated vs. non-decaffeinated, raw vs. processed), alternative subheadings include 392321.
What mandatory import documents are required for Mailing Envelope?
Commercial Invoice, Packing List, Bill of Lading, and Partner Government Agency permits where applicable.
Does de minimis duty-free exemption apply to Mailing Envelope?
Eligible shipments enter duty-free under statutory destination thresholds.
How are merchandise processing and customs fees calculated for Mailing Envelope?
Import fees are assessed on entered customs value under destination regulations.