9903.03.12 Explained: 50% Section 338 Duty on Canadian Alcohol

HTS 9903.03.12 imposes an additional 50 percent ad valorem duty on Canadian alcohol products enumerated in U.S. note 51(b)(1), effective for entries on or after August 19, 2026. This code is part of the Section 338 Canada actions, established by Proclamation 11046 (published at 91 FR 46639). Any importer bringing beer, wine, spirits, or other covered Canadian alcohol into the United States on or after that date must declare this Chapter 99 overlay code alongside the standard Chapter 1-97 classification.

All facts below are as of August 4, 2026. Because the effective date of August 19, 2026 is in the future as of that date, importers should prepare now for the rate change rather than treat it as already in force.

What 9903.03.12 Covers

Program and legal authority

This code was created under the Section 338 Canada actions. The governing legal authority is Proclamation 11046, 91 FR 46639 (FR doc 2026-14991), together with U.S. note 51 to Chapter 99 of the HTSUS. The product scope is specifically defined in U.S. note 51(b)(1), which the official heading text labels the "alcohol action."

Country scope

Only goods of Canada (country of origin CA) are subject to this code. Alcohol imported from any other country does not fall under 9903.03.12. If you are transshipping through Canada but the goods originate elsewhere, confirm the origin determination carefully with your broker before assuming this code does not apply.

Product scope: covered HTS subheadings

The code applies to Canadian alcohol products classified in the Chapter 22 subheadings enumerated in U.S. note 51(b)(1). The facts block confirms 63 total product lines are covered. The first 40 include, among others:

• Beer: 2203.00.00
• Sparkling wine: 2204.10.00
• Still wine in containers 2 liters or less: 2204.21.20, 2204.21.30, 2204.21.50, 2204.21.60, 2204.21.80
• Still wine in containers over 2 liters up to 10 liters: 2204.22.20, 2204.22.40, 2204.22.60, 2204.22.80
• Other still wine: 2204.29.61, 2204.29.81
• Vermouth: 2205.10.30
• Other fermented beverages: 2206.00.15, 2206.00.30, 2206.00.45, 2206.00.60, 2206.00.90
• Undenatured ethyl alcohol (high strength): 2207.10.30
• Grape brandy / cognac: 2208.20.10 through 2208.20.60
• Whiskies: 2208.30.30, 2208.30.60
• Rum and tafia: 2208.40.20, 2208.40.40, 2208.40.60, 2208.40.80
• Gin and Geneva: 2208.50.00
• Vodka: 2208.60.10, 2208.60.20, 2208.60.50
• Liqueurs and cordials: 2208.70.00
• Other spirituous beverages: 2208.90.10, 2208.90.12, 2208.90.14, and additional subheadings

This list is partial. Confirm whether your specific subheading appears in the full U.S. note 51(b)(1) enumeration in the current HTSUS or with your customs broker.

The Rate and Effective Window

The additional duty rate is 50 percent ad valorem, applied on top of any other applicable duties. This rate takes effect for entries made on or after August 19, 2026. There is no announced end date as of the facts date of August 4, 2026. Entries filed before August 19, 2026 are not covered by this code, regardless of when the goods were manufactured or shipped.

Because the effective date had not yet arrived as of August 4, 2026, importers should treat the period between now and August 19, 2026 as preparation time, not a grace period after the fact.

How 9903.03.12 Appears on an Entry and Stacks with Other Duties

Chapter 99 overlay mechanics

Like all Chapter 99 special tariff codes, 9903.03.12 is a secondary classification. On a CBP entry, the importer declares both the standard Chapter 1-97 HTS number (for example, 2208.30.30 for Canadian whisky) and 9903.03.12 as an additional line. CBP's Automated Commercial Environment calculates the Chapter 99 duty separately and adds it to the base duty computed on the Chapter 1-97 line.

Duty stacking

The 50 percent additional duty under 9903.03.12 stacks on top of:

• The column 1 (MFN) rate in the Chapter 1-97 classification
• Any other Chapter 99 overlays that may apply to the same entry line
• Any applicable merchandise processing fee and harbor maintenance fee

Confirm with your broker which other Chapter 99 codes, if any, may also apply to your specific product and whether they overlap or stack cumulatively. The facts block does not address interactions with other concurrent trade actions, so do not assume any exclusions or offsets exist without verifying in the current HTSUS.

Bond sufficiency

A 50 percent additional duty significantly increases the dutiable value on your entry. Importers who use continuous bonds should confirm with their surety that the bond amount remains sufficient to cover the higher duty exposure. An undersized bond can result in CBP requiring a single-transaction bond or issuing a demand against your continuous bond. For more on how bond breaches and demands work, see our article on CBP Liquidated Damages: Bond Breaches, Claims, and Petitions.

What Is Not Covered

• Non-Canadian origin goods: Alcohol not originating in Canada does not trigger 9903.03.12, even if shipped through Canada.
• Entries before August 19, 2026: This code has no retroactive effect. Goods entered before the effective date are not subject to the 50 percent additional duty under this code.
• Chapter 22 subheadings outside U.S. note 51(b)(1): Not every alcohol subheading in Chapter 22 is enumerated. Check the full note before assuming coverage or non-coverage.

Recordkeeping and Compliance Considerations

Because the 50 percent rate is substantial and the program is new, entries involving covered Canadian alcohol will attract closer scrutiny. Accurate classification and proper declaration of 9903.03.12 on every qualifying entry line is essential. CBP has broad authority to demand unpaid duties even without initiating a penalty action, so misclassification that results in underpayment carries real financial risk. See our article on 19 USC 1592(d) Duty Demand: What CBP Can Collect Without a Penalty for context.

Under standard customs rules, you must retain entry records for five years from the date of entry. Given that this program has no announced end date, maintain complete documentation supporting your origin determinations and classification decisions throughout that retention window.

What Importers Should Do

1. Audit your Canadian alcohol imports now. Identify every Chapter 22 line from Canada and cross-check each subheading against the full U.S. note 51(b)(1) enumeration in the current HTSUS to determine whether 9903.03.12 applies effective August 19, 2026.
2. Update entry instructions and ACE filing procedures. Instruct your customs broker to add 9903.03.12 as a secondary classification on all qualifying entry lines for shipments arriving on or after August 19, 2026. Do not wait until the first shipment arrives to make this change.
3. Reassess landed cost and bond sufficiency. Recalculate your duty liability with the 50 percent overlay included and confirm with your surety that your continuous bond covers the increased exposure.
4. Monitor for changes to the enumerated product list. U.S. note 51 and Proclamation 11046 (91 FR 46639) are the primary sources for any modifications. Check the official HTSUS at hts.usitc.gov and the Federal Register regularly, as no end date has been announced and the product list could be amended.

This article is general information, not legal advice.