Can influencers write off cars on their taxes?

Keep the mileage log from the first day whatever the rules turn out to be. Trying to reconstruct genuine business use a year later is where most of these claims come apart, and a contemporaneous record is the thing nobody can argue with.

In the cases I have seen the question was whether the content genuinely earns income rather than whether a car appears in it, but that varies a great deal by country and is exactly the sort of thing worth putting to an accountant before it goes on a return.

The honest answer is that this sits with tax law, not marketing, which means the details depend on where a creator files and how the car is used.

In many places a vehicle used genuinely for business, including producing content that earns income, can be partly deductible, though the personal-use portion is not and the rules vary widely. Mixed use is where people get it wrong, since claiming a full write-off on a car that doubles as a family vehicle invites trouble.

A qualified accountant who knows the local rules should confirm what is claimable before anything goes on a return. This is outside what a discovery tool like Flinque does, which makes it a question for a professional rather than a platform.