How Indiana taxes a car deal
- State tax rate
- 7%
- Local add-ons
- None typical
- Trade-in credit
- Yes — taxed on the difference
- Doc fee
- Capped at $251
Indiana is about as simple as vehicle tax gets: a flat 7% statewide, no county or city add-ons, and a full trade-in credit on dealer purchases. A $32,000 purchase with an $8,000 trade is taxed on $24,000 — $560 saved at 7%. When the structure is this flat, there are no clever tax moves to make; the whole game is the price, the trade allowance, and the financing.
The 7% rate is on the high side as flat rates go — a point-and-a-half above neighboring Kentucky's usage tax and well above Michigan's 6% — but Indiana partially compensates on fees: doc fees are capped and inflation-indexed, sitting around $250 for 2026. Between the flat rate and the capped fee, an Indiana buyer's order has very few places for surprises to hide, which is exactly how you want it.
Because everything is flat, the out-the-door total in Indiana is unusually easy to sanity-check in your head: price minus trade, times 1.07, plus roughly $500 in doc, title, and registration. If the dealer's number lands meaningfully above that mental math, something extra got rolled in — find it before you sign, not after.
Every figure above was last verified against official Indiana sources in July 2026. Tax rules do change — the final word is always your paperwork and the DMV.