HS Code 9404.21 : Mattresses, Of cellular rubber or plastics, whether or not covered
MODULE 2: EXTRACTABLE ANSWER (AEO / SPEAKABLE)
EN (Official WCO)
FR (Pending)
ES (Pending)
The 6-digit Harmonized System (HS) code for mattresses, of cellular rubber or plastics, whether or not covered is 9404.21. Under the 2026 United States (USITC HTS), the representative MFN general duty rate is 3% [USITC HTS 2026].
MODULE 3: SIGNATURE A: HS DECODE VISUAL HIERARCHY
Chapter 94
Mattress supports; articles of bedding and similar furnishing (for example, mattresses, quilts, eiderdowns, cushions, pouffes and pillows) fitted with springs or stuffed or internally fitted with any material or of cellular rubber or plastics, whether or not covered
Heading 9404
Mattress supports; articles of bedding and similar furnishing (for example, mattresses, quilts, eiderdowns, cushions, pouffes and pillows) fitted with springs or stuffed or internally fitted with any material or of cellular rubber or plastics, whether or not covered
Subheading .21
.21
Mattresses, Of cellular rubber or plastics, whether or not covered
MODULE 4: SIGNATURE B: TARIFF MATRIX
Import Duty Rates by Destination
United States (USITC HTS 2026)
9404.21.00
MODULE 5: US IMPORT DUTY & FEE BREAKDOWN (LANDED COST STACK)
Federal Import VAT / GST
0.00%
US Has NO Federal VAT
Notice: Duty rates and trade remedies change frequently (Section 301, Section 232, anti-dumping orders, de minimis thresholds). Duty calculations are estimates for informational purposes only. Always verify exact rates with U.S. Customs and Border Protection (CBP) or a licensed customs broker prior to import.
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MODULE 6: Mandatory Customs Entry Document Matrix
Rule-Derived Customs Entry Package Checklist
UNIVERSAL DOCUMENT
Commercial Invoice
Itemized description, currency, Incoterms, seller/buyer details, and country of origin.
UNIVERSAL DOCUMENT
Packing List & Bill of Lading
Gross/net weight, container/seal numbers, piece count, and transport B/L or Air Waybill.
PREFERENTIAL RULE
Certificate of Origin (If Claiming FTA)
Required only when claiming zero-duty preference under USMCA, KORUS, or GSP.
MODULE 7: Regulatory Compliance & Partner Government Agency (PGA) Flags
Standard Entry
This commodity does not carry mandatory PGA pre-clearance flags under the ACE message set.
MODULE 8: Trade Remedies (Section 301, Section 232, AD/CVD)
China Section 301 Tariff Status
0% Additional Duty (Exempt)
Section 232 Steel/Aluminum Status
Exempt (Non-Metal Commodity)
EU CBAM Carbon Alert
Not in Scope
MODULE 9: Free Trade Agreements (FTA) & Rules of Origin (RoO)
| Agreement Code | Trade Agreement / Program | Preferential Rate | Rules of Origin (RoO) Requirement |
|---|---|---|---|
| P | United States-Mexico-Canada Agreement (USMCA) | Free | Must meet USMCA Regional Value Content (RVC) or tariff shift rules. |
| KR | U.S.-Korea Free Trade Agreement (KORUS) | Free | Direct shipment from South Korea with KORUS Certificate of Origin. |
| AU | U.S.-Australia Free Trade Agreement | Free | Wholly obtained or tariff shift rule under US-Australia FTA. |
| A / D | GSP / African Growth & Opportunity Act (AGOA) | Free | 35% local value-add requirement for beneficiary country origin. |
MODULE 10: Logistics, Freight & Transport Specifications
Standard 20ft Container
~28 CBM / 28,000 kg Payload
Standard 40ft High-Cube
~68 CBM / 28,600 kg Payload
Stowage Factor & Handling
Standard commercial packaging for Mattresses, Of cellular rubber or plastics, whether or not covered
MODULE 11: Official CBP CROSS Binding Classification Rulings
No ruling cached for HS 9404.21.
Query the live U.S. Customs and Border Protection e-Rulings database:
Search Live CBP CROSS Database for 9404.21 →US National HTS Tariff Lines (9404.21)
| HTS Code | Description | General Rate | Special (FTA) Rate | Column 2 Rate | Unit |
|---|---|---|---|---|---|
| 9404.21.00 | Mattresses, Of cellular rubber or plastics, whether or not covered | 3% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% | — |
| 9404.21.00.10 | Mattresses, Of cellular rubber or plastics, whether or not covered, For use in a crib or toddler bed | Free | Free | Rate on request | No. |
| 9404.21.00.13 | Mattresses, Of cellular rubber or plastics, whether or not covered, Of a width exceeding 91 cm, of a length exceeding 184 cm, and a depth exceeding 8 cm | Free | Free | Rate on request | No. |
| 9404.21.00.95 | Mattresses, Of cellular rubber or plastics, whether or not covered, Other | Free | Free | Rate on request | No. |
MODULE 12: Candidate Subheadings & Related Codes
| Related HS Code | Heading Category | Action |
|---|---|---|
| 9404.10 | Subheading under Heading 9404 | Compare Subheading 9404.10 → |
| 9404.29 | Subheading under Heading 9404 | Compare Subheading 9404.29 → |
| 9404.30 | Subheading under Heading 9404 | Compare Subheading 9404.30 → |
| 9404.40 | Subheading under Heading 9404 | Compare Subheading 9404.40 → |
| 9404.90 | Subheading under Heading 9404 | Compare Subheading 9404.90 → |
MODULE 13: Industry Classification & Crosswalk Mesh (NAICS & Schedule B)
U.S. Census NAICS Code
U.S. Census Schedule B (Exports)
Official Primary Sources & Authority References
USITC HTS Chapter 94 Tariff Schedule (2026) ↗
Official U.S. 10-digit tariff lines and general duty rates for Mattresses, Of cellular rubber or plastics, whether or not covered.
CBP CROSS Ruling Database (9404.21) ↗
Binding customs classification precedents for Heading 9404.
MODULE 14: Frequently Asked Questions (FAQ) & Operational Guide
What is the 6-digit WCO tariff classification and United States (USITC HTS) general duty for Mattresses, Of cellular rubber or plastics, whether or not covered?
Under WCO Harmonized System 2022 and United States (USITC HTS), Mattresses, Of cellular rubber or plastics, whether or not covered is classified under HS 9404.21 (Heading 9404, Chapter 94). The representative US MFN general duty rate is 3%.
How is HS 9404.21 distinguished within Heading 9404 (Mattress supports; articles of bedding and similar furnishing (for example, mattresses, quilts, eiderdowns, cushions, pouffes and pillows) fitted with springs or stuffed or internally fitted with any material or of cellular rubber or plastics, whether or not covered)?
Heading 9404 covers Mattress supports; articles of bedding and similar furnishing (for example, mattresses, quilts, eiderdowns, cushions, pouffes and pillows) fitted with springs or stuffed or internally fitted with any material or of cellular rubber or plastics, whether or not covered. Subheading 9404.21 specifically isolates Mattresses, Of cellular rubber or plastics, whether or not covered. Importers must verify whether physical characteristics, processing state, or composition require alternative subheadings under Heading 9404.
What are the primary candidate subheadings related to HS 9404.21?
Related subheadings under Heading 9404 include 9404.10, 9404.29, 9404.30, 9404.40, 9404.90. Classification depends on processing stage, decaffeination, purity, or material form.
What mandatory commercial entry documents are required to import Mattresses, Of cellular rubber or plastics, whether or not covered?
Commercial Invoice (detailing Incoterms, currency, and origin), Packing List, Bill of Lading (or Air Waybill), CBP Form 7501 Entry Summary, and a continuous customs bond are required for formal entries.
Can goods under HS 9404.21 enter duty-free under USMCA or Free Trade Agreements?
Yes. Eligible goods originating in Mexico, Canada, South Korea, or Australia enter duty-free under preference SPI codes (P, KR, AU) provided they satisfy Regional Value Content (RVC) or tariff-shift rules with a valid Certificate of Origin.
What is the US formal entry threshold for shipments of Mattresses, Of cellular rubber or plastics, whether or not covered?
Commercial shipments of Mattresses, Of cellular rubber or plastics, whether or not covered with a customs value exceeding $2,500 USD require formal customs entry (CBP Form 7501) and a continuous entry bond. Informal entry applies to lower values.
How can an importer obtain a binding CBP classification ruling for HS 9404.21?
Importers may submit an e-Ruling request under 19 CFR Part 177 to CBP National Commodity Specialist Division (NCSD) to obtain a legally binding tariff classification ruling prior to importation.
What U.S. Census NAICS industry code corresponds to HS 9404.21?
HS 9404.21 maps to NAICS code 337910 (Other Furniture Related Product Manufacturing) under official U.S. Census Bureau trade concordance tables.
Does the United States assess federal VAT or GST on imports of HS 9404.21?
No. The United States does NOT charge a federal Value-Added Tax (VAT) or Goods and Services Tax (GST) on imports. Importers pay customs duty + MPF + HMF (if ocean freight).
How are Merchandise Processing Fee (MPF) and Harbor Maintenance Fee (HMF) calculated?
MPF is assessed at 0.3464% of entered value (min $32.71, max $634.62 per entry). HMF is assessed at 0.125% on ocean freight shipments entering US ports.
What is the Section 321 de minimis duty-free threshold for HS 9404.21?
Under Section 321 (19 U.S.C. 1321), eligible shipments valued at $800 USD or less imported by one person on one day enter duty-free and tax-free.
What U.S. Customs bond requirements apply to commercial entries under HS 9404.21?
Formal entries with customs value exceeding $2,500 USD require a continuous customs entry bond (CBP Form 301) to guarantee payment of duties, taxes, and fees.
What Importer Security Filing (ISF 10+2) rules apply to ocean imports of HS 9404.21?
Ocean container shipments bound for US ports require electronic ISF 10+2 submission via ACE at least 24 hours before loading at foreign ports.
How do USMCA preference rules apply to commercial imports under HS 9404.21?
Qualifying originating goods from Canada or Mexico meeting USMCA tariff-shift or Regional Value Content (RVC) rules enter duty-free under SPI code 'P'.