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Does the Cadillac CT4 qualify for the car loan interest deduction?
Yes on the assembly test. Every US-market Cadillac CT4 for model years 2025-2026 is assembled in Lansing, Michigan, USA, so it passes the final-assembly requirement.
US-assembled
Check your exact vehicle
Plants change by trim and model year. Your VIN settles it in one step.
Where the Cadillac CT4 is built
| Plant | Country | Model years |
|---|---|---|
| Lansing, Michigan | USA | 2025-2026 |
Source: NHTSA AALA Part 583 reports, MY2025 and MY2026. Checked 2026-09-08. The AALA reports list the final assembly country, which is the test the IRS applies; plant cities come from manufacturer disclosures.
Other rules you still need to meet
Assembly is only one test. The IRS also requires all of the following.
- Up to $10,000 a year of interest on a qualifying car loan, for tax years 2025 through 2028.
- You get it whether or not you itemize. It sits on Form 1040, Schedule 1-A, Part IV, "No Tax on Car Loan Interest."
- Income limit: the deduction shrinks by $200 for every $1,000 (or part of one) of modified adjusted gross income above $100,000 single or $200,000 married filing jointly. The cut comes off your actual interest, not off the $10,000 cap, so a small loan can hit $0 well before $150,000.
- The vehicle: a car, minivan, van, SUV, pickup, or motorcycle, under 14,000 lb, bought new (you are the first owner), and finally assembled in the United States. Brand does not matter; a Honda from Ohio qualifies and a Ford from Mexico does not.
- The loan: started after December 31, 2024, secured by a first lien on the vehicle, from a lender that is not a relative or a business you own. Personal use only. Leases don't count. Refinancing a qualifying loan generally keeps it qualifying.
- Paperwork: you must enter the VIN on your return. Lenders send Form 1098-VLI if you paid $600 or more in interest.
Similar compact luxury sedan vehicles
- BMW 3 Series Not US-assembled
- Acura Integra US-assembled
- BMW 2 Series Coupe Not US-assembled
- Mercedes-Benz CLA Not US-assembled
- Volvo S60 US-assembled