Find out how much car you can realistically afford based on your income.
Car affordability comes down to two numbers: the total purchase price and the monthly payment. Both need to work within your budget — a car that fits your monthly payment but stretches your total budget can leave you underwater on a loan for years. And a car that fits your budget on paper but ignores ongoing costs like insurance, fuel, and maintenance can strain your finances every month.
The most useful framing is total monthly transportation cost — not just the car payment. Add up your expected payment, insurance, fuel, and routine maintenance, and that total should stay manageable relative to your income. Most financial advisors suggest keeping total transportation costs under 15–20% of your take-home pay.
A widely used guideline says your car's total purchase price should not exceed 35% of your gross annual income. On a $70,000 salary, that's a $24,500 car. On a $90,000 salary, that's $31,500. This rule works well for cash buyers and as a ceiling for financed purchases. It prevents you from buying a car that dominates your net worth relative to your income.
This rule is a ceiling, not a target. Many financial planners suggest being more conservative — especially if you're also paying rent, carrying student loans, or trying to build savings. A car at 20–25% of annual income leaves more room for other financial priorities.
Your monthly car payment (principal + interest only, not insurance or fuel) should stay under 10% of your monthly take-home pay. If you bring home $4,500/month after taxes, that's a $450 maximum payment. This is the rule most directly tied to day-to-day cash flow — it ensures the loan payment doesn't crowd out your ability to cover other essentials.
Note the distinction: this is based on take-home pay, not gross income. Gross income looks better on paper but doesn't reflect what you actually have to spend each month.
This three-part framework combines down payment, loan term, and monthly costs into a single discipline. Put at least 20% down to avoid being underwater on the loan from day one. Finance for no more than 4 years (48 months) to limit total interest paid and avoid owning an aging car on a long loan. And keep total monthly car costs — payment plus insurance — under 10% of gross monthly income.
Following all three parts is strict, but it prevents the most common mistakes: buying more car than you can afford, taking 72–84 month loans that cost thousands in extra interest, and being "upside down" (owing more than the car is worth) if you need to sell or get in an accident.
The sticker price is only the beginning. Car insurance for a new vehicle typically runs $100–$200/month depending on your age, driving record, location, and coverage level. Fuel costs $100–$200/month for most drivers at current gas prices. Routine maintenance — oil changes, tires, brakes, filters — averages $50–$100/month when smoothed out over a year. Together, these add $250–$500/month on top of your loan payment.
A car with a $400/month payment might actually cost you $700–$900/month all-in. Before you commit, run the full monthly cost through your actual budget — not just the payment the dealer quotes you.
Used cars typically offer significantly better value per dollar spent. A 2–3 year old certified pre-owned vehicle has absorbed the steepest depreciation (15–25% in year one) while often still carrying remaining factory warranty coverage. You can frequently get a car with 25,000–40,000 miles in excellent condition for 20–30% less than a new equivalent.
The trade-off is less customization, potentially higher interest rates on used auto loans (though the lower price often makes up for it), and the need to do more homework on vehicle history and condition. For most buyers on a budget, a 2–4 year old used car from a reliable brand represents the best combination of value, reliability, and cost.
Your credit score directly affects your interest rate, which affects your monthly payment and total cost of ownership. A borrower with a 750+ score might qualify for 5–6% APR on a new car loan. A borrower with a 620 score might pay 12–15% APR. On a $28,000 loan over 60 months, the difference between 6% and 13% APR is about $130/month — and over $7,500 in total interest paid. Credit score can change how much car you can actually afford more than almost any other factor.
This calculator provides a general estimate of car affordability based on income and common budgeting guidelines. Results are estimates only and do not account for your full financial picture, existing obligations, or credit situation. Actual affordability should be evaluated with a qualified financial professional. This tool is for informational and educational purposes only and does not constitute financial advice.