Can I deduct the registration fee for my utility or car hauling trailer?

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Yes, a portion of the registration fee must be charged based on the vehicle's value—as opposed to its size, age or other characteristics.

 If part of your registration is indeed deductible, you must itemize your deductions to claim it, rather than using the standard deduction

See https://turbotax.intuit.com/tax-tips/tax-deductions-and-credits/is-your-car-registration-deductible/...