On July 20, 2026, the White House announced additional 50% tariffs on certain imports from Canada. Its fact sheet describes three proclamations under Section 338 of the Tariff Act of 1930, application to covered goods regardless of USMCA origin treatment, and an effective date 30 days after signing.
Packaging Dive reported, after reviewing the annexes, that the broad product range includes paper and wood products and appears to include containerboard, uncoated freesheet and boxboard. Actual liability still depends on the shipment’s HTS classification, origin, exclusions and U.S. entry date. It is not accurate to say that every Canadian paper product automatically receives the additional tariff.
Field Problem
A finished product may be manufactured in Korea while its packaging supply chain includes Canadian-origin linerboard, sheets or boxes. A Korean company’s North American operation may also purchase boxes in Canada or repack goods at a Canadian distribution center before U.S. entry.
The impact is not limited to a higher paper price. Quotation margin and delivery decisions depend on the importer of record, entry date, applicable HTS code and contractual allocation of tariffs. Our earlier North American containerboard article examined producer price announcements. This article focuses on customs evidence and contractual responsibility.
Evidence to Verify
The White House fact sheet directly supports the following points:
- three Section 338 proclamations impose an additional 50% tariff on specified Canadian goods;
- covered goods may be subject to the tariff regardless of USMCA origin treatment;
- energy, potash, Section 232 goods and certain other products are described as excluded; and
- the tariffs take effect 30 days after signing.
Packaging Dive reports that the annexes cover a wide range of paper and wood products and appear to include containerboard, uncoated freesheet and boxboard. That industry report is useful for screening exposure, but the controlling determination for a company is the official annex and HTS classification used at U.S. entry.
| Observation | Source or criterion | Status | Action |
|---|---|---|---|
| Additional rate | White House fact sheet | 50% for covered goods | Confirm item coverage separately |
| Effective timing | 30 days after signing | Reported as August 19, 2026 | Check actual U.S. entry date |
| Paper and wood coverage | Packaging Dive annex review | Broad coverage reported | Recheck the HTS code |
| USMCA treatment | White House fact sheet | Does not remove the tariff for covered goods | Do not assume origin certification is an exemption |
| Exclusions | Fact sheet and proclamations | Certain products excluded | Check Section 232 and other overlaps |
Practical Deliverable
Complete this origin, HTS and Incoterms checklist for each PO and shipment.
| Field | Observation or input | Criterion | Owner and action |
|---|---|---|---|
| Material or finished good | Linerboard, sheet, box or packaged SKU | BOM and packaging specification | Procurement maps the supply route |
| Country data | Separate manufacture, processing and shipment countries | Certificate and supplier statement | Trade team checks consistency |
| HTS code | Code planned for U.S. entry | Broker and official HTS | Do not guess from a similar item |
| Annex coverage | Whether the code is listed | Proclamation annex | Legal and broker reconfirm |
| Exclusion or overlap | Section 232 and other tariff treatment | Official guidance | Record possible overlap |
| U.S. entry date | Entry date, not only sailing date | Logistics schedule | Split pre- and post-August 19 entries |
| Importer | Importer of Record entity | Customs agreement | Name the responsible entity |
| Incoterms | Actual DDP, DAP, FCA or other term | Contract and PO | Match the tariff payer |
| Additional cost | Duty, brokerage and emergency freight | Broker quotation | Sales updates quotation validity |
| Decision | Applies, excluded or more evidence required | Source and reviewer | Hold release if unresolved |
A practical cross-functional sequence is:
- Procurement collects evidence for Canadian-origin linerboard, sheets and boxes.
- Production links exposed materials to finished SKUs and qualified alternatives.
- Logistics and trade confirm the HTS code, entry date, importer and customs broker.
- Sales checks Incoterms and tariff responsibility before revising quotation validity or surcharges.
- Legal and the broker make the final call on annex coverage, exclusions and overlapping duties.
Hold Conditions
Do not put a final tariff amount into a customer quotation, and do not mark an item as excluded, while any of these remain unresolved:
- HTS code to be used for the actual U.S. entry;
- Canadian origin versus Canada as only the shipment country;
- inclusion in the relevant proclamation annex;
- interaction with Section 232 or another exclusion;
- effective-date treatment for the actual entry date;
- Importer of Record and Incoterms tariff payer; or
- written confirmation from the U.S. customs broker or tariff specialist.
Both shortcuts are risky: USMCA-qualified means no additional tariff and anything routed through Canada is covered. Item, origin, annex and entry structure must be linked line by line.
Documents to Check Today
- Canadian supplier certificate of origin and manufacturer statement;
- packaging BOM mapped to U.S.-bound SKUs;
- planned U.S. HTS codes;
- proclamation annex and broker determination;
- Incoterms and tariff-allocation clauses in the PO or contract; and
- shipment and U.S. entry schedule around August 19.
About the Author
PackingMaster: Editor of Paper Pack Log. We collect and organize market trends, product information, and technical insights for the paper packaging industry.