Key Takeaways
- U.S. automakers claiming $500M+ in tariff refunds still face multi-billion annual duty bills, and Canadian importers shipping the same parts face identical origin and classification scrutiny from CBSA.
- Section 232 steel and aluminum tariffs apply at the Canadian border when parts originate outside CUSMA territory, so your CAD filing must correctly declare origin and support any CUSMA preference claim with valid certificates.
- CBSA verification of origin declarations has intensified since CARM Phase 2; incorrect claims trigger AMPS penalties starting at $1,600 per contravention under the Customs Act.
- If you're importing automotive components under HS 8708 or 8714 and paying 6.1% MFN duty when a zero-rate CUSMA claim was available, you can correct within 90 days or file a four-year drawback claim through your broker.
Why a $500M refund story matters at the Canadian border
General Motors just announced it expects to recover roughly $500 million in tariff refunds while still projecting up to $3.5 billion in annual duty costs through 2026, most of it driven by Section 232 steel and aluminum levies. If you import automotive parts into Canada, the same origin and classification questions that generate those refunds and duty bills in the U.S. apply here. CBSA verifies CUSMA origin claims with the same scrutiny, and incorrect declarations on your CAD trigger duty adjustments, interest, and AMPS penalties that can run into six figures across a year of shipments.
Large OEMs have trade-compliance teams running every line item through regional-value-content calculations and tariff-shift tests. Mid-market importers often rely on supplier assurances that turn out to be incomplete or wrong when CBSA asks for proof. The difference shows up 18 months after release, when verification letters land and you're scrambling to reconstruct bills of material.
Section 232, CUSMA, and the duty math on automotive steel
Section 232 is a U.S. national-security tariff that imposes a 25 percent levy on steel and 10 percent on aluminum from most origins. Canada negotiated an exemption under the 2019 CUSMA agreement, so goods wholly obtained or sufficiently transformed in Canada, the U.S., or Mexico qualify for zero duty when you file the CAD with a valid CUSMA preference claim. Parts sourced from China, India, or the EU without CETA origin pay the full MFN rate, which for many automotive steel components under HS 7326 or HS 8708 sits at 6.1 percent per the Canada Customs Tariff.
The refund GM is claiming comes from overpayments and duplicate filings, not a blanket exemption. Canadian importers face the same dynamic: if your supplier ships brackets, fasteners, or stampings from a non-CUSMA plant and you declare CUSMA origin anyway, CBSA will adjust the CAD and charge interest back to the release date. The penalty under AMPS C014 starts at $1,600 per contravention, and repeated incorrect claims escalate quickly through the Master Penalty Document schedule.
How CBSA verifies CUSMA origin on automotive parts
When you file a CAD through the CARM Client Portal and claim preference code 11 (CUSMA), you're certifying that the goods meet the applicable rule of origin in Annex 4-B. For automotive parts under Chapter 87, most rules require either a tariff-shift test (e.g., non-originating inputs must shift from outside the heading) or a regional-value-content threshold of 60 to 75 percent, depending on the production method.
CBSA can verify at any time within four years under Customs Act section 42.01. Verification letters ask for the certificate of origin, supplier purchase orders, bills of material, and production records. If you can't produce them, or if the records show the goods didn't qualify, CBSA adjusts your CAD to collect unpaid MFN duty plus interest and issues an AMPS penalty. We've seen clients hit with $40,000 in penalties across 25 shipments because the supplier used Chinese steel tube in a welded assembly but still issued a blanket CUSMA certificate.
Automotive parts are a known audit target. CBSA's risk-scoring engine flags high volumes, low declared values, and product profiles that historically fail verification. If you're importing brackets, exhaust components, or suspension parts under HS 8708, expect verification sooner rather than later.
Filing corrections and drawback claims when origin documentation changes
If you paid MFN duty but later obtained a valid CUSMA certificate, you have two paths to recover the overpayment. Within 90 days of the original CAD submission date, you can file a correction directly in the CARM Client Portal and CBSA will refund the difference. Beyond 90 days, you file a section 74 drawback claim, which CBSA allows up to four years from the date the duty was paid. The certificate must prove the goods qualified at the time of import, not just that the supplier is now CUSMA-compliant.
Drawback claims take time. CBSA reviews the certificate, cross-checks production dates, and sometimes asks for supplier audits before issuing the refund. If your supplier won't cooperate, the claim dies. That's why we push clients to secure origin certificates before the first shipment, not after CBSA starts asking questions.
For help with duty recovery and compliance reviews, talk to a broker who runs these claims weekly.
HS classification pitfalls for automotive steel components
Steel parts can land in HS 7326 (other articles of iron or steel) at 6.1 percent MFN or HS 8708 (parts for motor vehicles) at rates ranging from free to 6 percent depending on the subheading. The difference matters not just for duty but also for the applicable CUSMA rule of origin. A bracket classified under 7326.90 requires a tariff shift from outside Chapter 73, while the same bracket under 8708.99 may need only a shift from outside heading 8708 or a regional-value-content test.
Misclassification during CAD filing triggers duty adjustments and penalties during CBSA verification. If you've been filing exhaust clamps under 7326 but CBSA reclassifies them to 8708, you'll owe the difference in duty and face an AMPS penalty for incorrect tariff declaration. We routinely see automotive importers treat HS classification as a supplier's problem, then absorb the cost when CBSA disagrees.
Use the HS classification tool to confirm your 10-digit CCN before filing, or ask your broker to request an advance ruling from CBSA if the part straddles two headings.
Warehouse and drayage coordination for automotive JIT shipments
Automotive importers run tight delivery windows, and any delay at CBSA can shut down an assembly line. Release prior to payment under an RPP bond helps, but if your CAD is missing the CUSMA certificate or the HS code looks wrong, CBSA holds the shipment for review. Once the goods clear, drayage to your plant or a consolidation point needs to happen the same day.
If you're staging inventory in Montreal before final delivery, FENGYE Logistics' Montreal sufferance warehouse lets you hold goods under bond until the CAD is corrected or the origin certificate arrives. That keeps your production schedule intact while your broker fixes the filing.
What to do if your automotive supplier can't prove CUSMA origin
If CBSA sends a verification letter and your supplier won't provide bills of material or production records, you have three options. One, concede the claim and pay the MFN duty plus interest. Two, hire a third-party auditor to reconstruct the origin analysis from shipping records and component specs (expensive and slow). Three, switch suppliers to one that maintains proper CUSMA documentation and accept the sunk cost on the non-compliant shipments.
We've walked clients through all three. The suppliers who treat origin certificates as a formality are the same ones who disappear when CBSA asks for proof. If your current supplier won't commit to maintaining records under CUSMA Article 5.2, plan the exit now, not after the verification letter lands.
Duty rates, penalties, and the real cost of incorrect origin claims
A single incorrect CUSMA claim costs you unpaid MFN duty (typically 6.1 percent for automotive steel parts), interest from the release date, and an AMPS penalty starting at $1,600 under C014. If CBSA determines the error was negligent, the penalty jumps to Level 2 ($3,500 per contravention). Across 50 shipments in a year, that's $80,000 in penalties alone, plus the duty and interest.
The refund GM is chasing shows that even the largest importers with dedicated compliance teams get origin claims wrong. For mid-market importers filing CADs without in-house trade staff, the risk is higher and the margin for error is zero. CBSA's CARM system flags patterns, so one wrong claim triggers a review of every shipment under the same supplier and HS code.
If your automotive parts are coming from suppliers who won't provide origin certificates or whose certificates don't match the goods, fix it before the next CAD filing. The penalty math doesn't care about supplier excuses.
We file CADs for automotive importers every day and run origin verification responses when CBSA asks. If your supplier's certificate looks thin or your last shipment paid MFN when CUSMA should have applied, get in touch.
Frequently Asked Questions
Do Section 232 steel and aluminum tariffs still apply to automotive parts imported into Canada?
Yes. Section 232 is a U.S. tariff, but Canada imposed reciprocal surtaxes in 2018 and then suspended them under the 2019 CUSMA agreement. If your supplier ships from outside CUSMA territory (e.g., China, India, EU without CETA origin), you pay the applicable MFN duty rate, which for many automotive steel parts under HS 7326 or 8708 sits at 6.1% per the Canada Customs Tariff.
How do I claim CUSMA origin on a Commercial Accounting Declaration filed through CARM?
When you file your CAD, you declare preference code 11 (CUSMA) and enter the certificate identifier or the certification-of-origin statement. CBSA can verify at any time within four years under Customs Act section 42.01, so make sure your supplier's certificate matches the goods, includes the HS 6-digit classification, and supports the regional-value-content or tariff-shift rule in Annex 4-B.
What happens if CBSA finds my CUSMA origin claim was wrong after the goods released?
CBSA issues a request for information under section 42.01, and if you can't provide the certificate or the supplier's records don't support the claim, CBSA adjusts your CAD to collect the unpaid MFN duty plus interest. If the claim was negligent or false, you also face an AMPS penalty starting at $1,600 per contravention under C014 of the AMPS penalty schedule.
Can I recover duty if I paid MFN rates but later obtained a valid CUSMA certificate?
Yes, through two paths. If you're still within 90 days of the original CAD submission date, you can file a correction in the CARM Client Portal. Beyond 90 days, you file a section 74 drawback claim, which CBSA allows up to four years from the date the duty was paid, provided you now hold the certificate and the goods qualified at the time of import.
What HS codes cover automotive steel components, and why does classification matter for duty rates?
Steel parts typically fall under HS 7326 (other articles of iron or steel) at 6.1% MFN or HS 8708 (parts for motor vehicles) at rates ranging from free to 6% depending on the subheading. Correct HS 6-digit classification drives both the duty rate and the applicable CUSMA rule of origin, so misclassification can trigger duty adjustments and AMPS penalties during CBSA verification.
How does CBSA decide which automotive imports to verify for origin compliance?
CBSA uses risk scoring in CARM that flags importers with high volumes, low declared values, frequent origin claims, or product profiles that historically fail verification. Automotive parts under HS 8708 are a known audit target because the regional-value-content calculation is complex and suppliers often blend CUSMA and non-CUSMA inputs without proper certification.
What documents should I keep on file to survive a CBSA origin verification?
Keep the CUSMA certificate of origin (or the certification statement on the commercial invoice), supplier purchase orders, bills of material showing input origins, production records, and any technical data sheets that prove the goods meet the tariff-shift or regional-value-content test. CBSA expects you to produce these within 30 days of a verification letter, per CBSA D11-4-16.
Originally published at https://www.canflow-global.com/en/insights/what-oem-duty-refunds-mean-for-canadian-automotive-importers-filing-cads-in-2025/.
