Idaho Car Sales Tax Calculator 2026

What Idaho charges to buy and title a car in 2026: the vehicle tax (Sales tax) at the verified state figure, plus the title fee. Registration is annual and itemised below — it varies too much by vehicle to fake a single number.

On a $35,000 purchase: tax $2,100.00 + title $14.00 = $2,114.00 at the counter before registration.

The purchase No trade-in credit in this calculation (see the rules).

Purchase price ($)

Trade-in value ($)

Vehicle tax

$2,100.00

at 6% on $35,000.00

At the counter

Taxable base	$35,000.00
Vehicle tax	$2,100.00
Title fee	$14.00
Tax + title	$2,114.00

Registration (annual): By vehicle age: $69 (1-2 years), $57 (3-6 years), $45 (7+ years); electric vehicles add $140/yr

How Idaho taxes a car purchase

The tax

Sales tax. 6%

Source: official Idaho source.

Trade-in

This calculation does not credit a trade-in — the research could not verify a credit from an official source, so none is assumed; check the linked source for your sale type.

Trade-in treatment per the official source.

Title & registration

Title: $14.00. Registration: By vehicle age: $69 (1-2 years), $57 (3-6 years), $45 (7+ years); electric vehicles add $140/yr

Fees change; the DMV schedule governs.

Frequently asked questions

Private-party purchase — is the tax on what I paid?

Often not: several states tax the greater of the price or a book/standard value (Texas presumptive value, Delaware NADA, Vermont J.D. Power). The calculator uses your price; the agency may not.

Why is my dealer's total higher?

Dealer documentation fees and optional products are not taxes; this page covers the government charges only.

Do I pay again when I move states?

Usually a credit for tax paid to the first state, or a reduced new-resident rate (Georgia charges 3% TAVT to newcomers) — the destination state's rules are on its page.

Sources & verification. State DMV / revenue department publications (researched 4 November 2026; each page links its official source). Floors are labelled floors — local taxes add on top. An estimator for a typical purchase; private-party valuation rules (standard presumptive value, NADA/J.D. Power) can change the base.

Vehicle tax$2,100.00

Idaho Car Sales Tax Calculator for 2026: Idaho's vehicle tax on a $35,000 purchase is $2,100.00, plus a $14.00 title fee. Rates from the state DMV/DOR.

UNDERSTAND YOUR RESULTS

Idaho Car Sales Tax Calculator guide

The tax, title fee and registration position for buying a car in Idaho in 2026, from the state DMV/DOR.

How to use this tool

Enter the purchase price.
Enter any trade-in.
Read the tax and the at-the-counter total.

A worked example

On $35,000, the tax is $2,100.00.

What you can do with this tool

Idaho’s vehicle tax modelled in its real structure (Sales tax), not a generic sales-tax clone.
Trade-in treatment stated plainly — no credit assumed where none is verified.
Title fee and the official registration position on the same page.

How it works

Frequently asked questions

How much is car tax in Idaho?

On the test purchase, $2,100.00 — the page runs your own price.

Is there a trade-in credit?

Not in this calculation — the page explains the state’s position.