AutoTaxCalculator

Car Tax Blog

The calculators tell you what you'll pay. These guides cover the questions around them: which car costs you can deduct, how fees are built, and what changes when you buy, sell or move a car. Every rule links to the IRS or the state agency that sets it.

Latest guides

How much does it cost to switch a car title? Two hands passing a vehicle title and car keys across a wooden table

How Much Does It Cost to Switch a Car Title?

Title transfer fees in 37 states and DC, plus the tax, plate, lien and late fees that come with them.

Read the guide → How much are late fees for car registration? A faded, peeling registration sticker on the corner of a dusty license plate

How Much Are Late Fees for Car Registration?

Late renewal fees and grace periods by state, expired tag tickets, and whether you can pay in installments.

Read the guide → Is leasing a car a tax write off? A dark red car in a bright showroom with a lease document on a tablet stand in front

Is Leasing a Car a Tax Write-Off?

Only for business use. How lease deductions, the inclusion amount and state lease taxes work.

Read the guide → Vehicle basis on taxes: car keys, a calculator and a downward-trending depreciation chart on a dark wooden desk

Vehicle Basis on Taxes

Your car's cost for tax purposes: what goes in, what reduces it, and how gifts, inheritances and business use change it.

Read the guide → Do you pay taxes when you sell a car? A seller handing keys to a buyer with a handshake beside a used silver sedan in a driveway

Do You Pay Taxes When You Sell a Car?

Usually not as a seller. How buyers are taxed on used cars, state by state, and legal ways to pay less.

Read the guide → Is car sales tax deductible? A car purchase invoice with one line highlighted in gold, with reading glasses and a pen on a desk

Is Car Sales Tax Deductible?

Yes, if you itemize and choose sales tax over income tax. The rate limit, SALT cap and worked examples.

Read the guide → How to write off a car for business: a small business owner loading boxes into a white cargo van outside a brick workshop

How to Write Off a Car for Business

Standard mileage vs actual expenses, depreciation caps, the heavy SUV rule and the records you need.

Read the guide → Does buying a car help with taxes? A couple reviewing paperwork with a salesperson at a dealership desk, cars in the showroom behind them

Does Buying a Car Help With Taxes?

The new car loan interest deduction, sales tax, business use, and the EV credits that ended in 2025.

Read the guide → Cheapest state to buy a car: a red sedan driving down an empty rural highway toward a blank green road sign at sunset

Cheapest State to Buy a Car in 2026

Car tax on a $30,000 purchase in every state, and how buying a vehicle out of state is really taxed.

Read the guide → Are vehicle registration fees tax deductible? A registration renewal envelope, car keys, a calculator and a pen on a wooden desk

Are Vehicle Registration Fees Tax Deductible?

Only the value-based part, and only if you itemize. Which states qualify and how to split your bill.

Read the guide →