Green car, purchase worksheet, key and inspection flashlight before buying

Before You Buy a Car: Checklist

Negotiate the vehicle, financing and trade-in as separate decisions so the monthly payment cannot blur the real price.

Priceout the door
Inspectbefore committing
Comparefinancing separately

How to check a car purchase

Fix the out-the-door price

Separate vehicle price, taxes, registration, dealer fees and add-ons before discussing monthly payment or trade value.

Verify the vehicle

Match the VIN and title, review history and recalls, and obtain an independent inspection when the vehicle is used.

Compare financing separately

Put dealer and outside loan offers on the same amount and term, then compare APR, fees and total repayment.

Reconcile the purchase contract

Check price, trade allowance, payoff, amount financed, optional products and whether delivery depends on later approval.

Tools for this decision

Use the final figures from the document in these calculators and checklists, then return to the guide for the clauses the result cannot test.

Car Total Cost Calculator

Calculate car total cost from the out-the-door price, financing, insurance, fuel, maintenance and expected resale value.

Free tool · Assumptions shown

Lease vs. Buy Car Calculator

Use the lease-versus-buy calculator to compare matched car cash outflows, monthly costs and estimated end value over the same ownership period.

Free tool · Assumptions shown

Negative Equity Rollover Calculator

Calculate how negative equity rollover changes the new amount financed, monthly payment and scheduled interest.

Free tool · Assumptions shown

Financed Add-On Cost Calculator

Use the financed add-on cost calculator to estimate the payment, interest and complete repayment cost when a dealer product is rolled into an auto loan.

Free tool · Assumptions shown

Common questions before this decision

Short answers for the issues that most often change the next document check.

What should an out-the-door car price include?

Ask for one written total that itemizes the vehicle, taxes, registration, dealer charges and every add-on before trade value or financing changes the presentation.

Are dealer add-ons required?

Do not rely on a verbal claim. Ask whether each product is optional, request its separate cash price and verify any claimed lender requirement directly with the lender.

Can financing change after I drive the car home?

It can when delivery is conditional. Read whether financing is final, what happens if assignment fails and how the vehicle, deposit and trade-in will be handled.

Connected decisions to check

Some obligations cross from one document into another. Follow the connection that applies to the same transaction.