I filed my 2290 and forgot to claim credits for low mileage vehicles for the previous year. Is there a way I can still add that credit and get a refund?

Instantly file your heavy vehicle use tax form 2290 for the 2026-2027 tax year

You can either wait to add the credit when you file another 2290 or file Form 8849 Schedule 6 to receive a refund from the IRS.