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Car affordability calculator

On a $75,000 salary, keeping all car costs to 10% of gross income leaves $275 a month for the payment after $350 of running costs. With $5,000 down at 7% for 60 months, that buys a car priced near $16,984. These are example inputs, so enter your own numbers below.

Edited by AnilReviewed How we calculateEditorial policy

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The loan and your money down
Monthly running costs
Tax and fees
More options (4)
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Car Affordability Calculator
Car price you can afford
$16,984
With a $275 payment for 60 months at 7%
Your monthly car cost
  • Loan payment$275
  • Insurance$150
  • Fuel$120
  • Maintenance$80
Monthly payment
$275
Left from the 10% limit after running costs
Monthly cost with running costs
$625
10% of gross income
Loan amount
$13,888
Total interest
$2,612
Paid off Nov 2031
Tax and fees
$1,904
Part of your budget, but not the car
20/4/10 price
$14,726
A rule of thumb

What this means

  • $275 a month repays a loan of $13,888. Together, that loan and your $5,000 down have to cover $1,904 of tax and fees as well as the car, so the car itself can cost $16,984.
  • A 60-month loan buys $2,258 more car than 48 months at the same payment, but it costs $896 more interest and the payments last 12 months longer. A longer loan also raises your risk of owing more than the car is worth.
  • A rate one percentage point higher would cut this price by about $306. Getting a loan quote before you shop shows you which price is real.
  • The payment is only part of the bill. With $350 a month for insurance, fuel, and upkeep, this car costs $625 a month to own and run. That's 10% of your gross income.
  • The 20/4/10 rule of thumb would point to about $14,726 with your money down, which is $2,258 less than this plan. This plan goes past it with a loan longer than 48 months. It's only a guideline, not a limit from any lender.

What moves this number

Change in car price you can afford. Select one to try it.

What the same payment buys at each loan length
$275 a month at 7%, with the same rate at every length
$0$10K$20K$30K36 mo48 mo60 mo72 mo84 mo
View as table
PeriodCar price
36 mo$12,306
48 mo$14,726
60 mo$16,984
72 mo$19,089
84 mo$21,052

Keep going with these numbers

The same payment at different loan lengths

The rate is held steady. Lenders often charge more for longer terms, so a real long-term price may be lower.

TermCar priceLoanTotal interest
3 yrs$12,306$8,906$994
4 yrs$14,726$11,483$1,716
5 yrs$16,984$13,888$2,612
6 yrs$19,089$16,130$3,670
7 yrs$21,052$18,220$4,879

The 20/4/10 rule of thumb, checked against this plan

A rough guideline, not a rule from a lender or regulator. It says 20% down, a loan of 4 years or less, and car costs at or under 10% of gross income.

TestThis planMeets it?
20% or more down, counting trade-in equity29.4%Yes
48 months or shorter60 monthsNo
10% or less of gross income, with running costs10%Yes

How much car each monthly payment buys

At 7% for 60 months, with your down payment, trade-in, tax, and fees.

PaymentLoanCar price
$200$10,100$13,427
$300$15,151$18,169
$400$20,201$22,911
$500$25,251$27,653
$600$30,301$32,395
$800$40,402$41,879
$1,000$50,502$51,363

How much car can I afford based on my salary?

A $60,000 salary supports a car near $11,056 and a $100,000 salary one near $26,863, if all your car costs stay within 10% of gross income. If the 10% covers only the payment, the prices are far higher, as the last column shows. Decide which one you mean before you trust either number.

$5,000 down, 7%, 60 months, 6.5% tax, $800 in fees, and $350 a month of running costs. All examples, calculated by this site.
Salary10% a monthLeft for a paymentCar priceCar price if 10% is the payment alone
$60,000$500$150$11,056$27,653
$70,000$583$233$15,008$31,605
$80,000$667$317$18,959$35,556
$100,000$833$483$26,863$43,460
$120,000$1,000$650$34,766$51,363
$150,000$1,250$900$46,621$63,218
$200,000$1,667$1,317$66,379$82,976

This uses your income before tax and ignores your other debts and savings. A budget with student loans or childcare has less room than one without, so test the result in the budget calculator.

How much car can I afford for $300, $400, or $500 a month?

A $400 payment buys a car priced near $22,911 over 60 months, with these inputs. Stretching the loan raises the price, but it also raises your interest, and that's only worth it if you truly need the room.

Car price by monthly payment, with $5,000 down, 7%, 6.5% tax, and $800 in fees. Rate held steady across terms, though lenders often charge more for longer ones.
Monthly payment48 months60 months72 months
$200$11,785$13,427$14,958
$250$13,746$15,798$17,712
$300$15,707$18,169$20,466
$350$17,667$20,540$23,219
$400$19,628$22,911$25,973
$450$21,588$25,282$28,727
$500$23,549$27,653$31,480
$550$25,509$30,024$34,234
$600$27,470$32,395$36,988
$1,000$43,155$51,363$59,018

How to calculate how much car you can afford

Work backward in three steps: from the payment to the loan, from the loan to what you can spend in total, and from that total to the car's price. Sales tax and fees come out along the way, which is why the car costs less than the loan and down payment added together.

Loan = payment × (1 − (1 + r)^−n) ÷ rPrice = (loan + down payment + trade-in equity − fees) ÷ (1 + tax rate)

For $400 a month at 7% over 60 months, r is 0.005833 and the loan is $20,201. Add $5,000 down and subtract $800 in fees to get $24,401. Divide by 1.065 for 6.5% tax, and the price is about $22,911. If your state taxes the price after a trade-in, the calculator handles that too, and a switch covers states that don't.

What is the 20/4/10 rule for buying a car?

It's a rule of thumb: put at least 20% down, finance for 4 years or less, and keep car costs to 10% of gross income or less. It isn't a rule from a lender or regulator, and it's useful as a check, not as a limit.

On $75,000, it points to about $14,726 with $5,000 down, a loan of $11,483 over 48 months, and $275 a month. That's $2,258 less than the 60-month plan, and the longer loan is the only difference. If you had just $1,500 down, 20% caps the price at $7,500, because that money must be a fifth of the price.

The CFPB's auto loan guide makes a similar point: think about the total cost of the loan, not only the monthly payment. It adds that some financial advisers recommend keeping a car loan to five years or less, because the longer the loan, the more likely you'll owe more than the car is worth.

What should my total car budget include?

Count the whole monthly bill, not only the payment. The CFPB's auto loan guide lists state taxes, title and dealer fees at purchase, and then insurance, gas, registration, maintenance, and repairs for as long as you own the car. In this example, the $275 payment is less than half of the $625 monthly total.

The example monthly budget. Replace each line with your own numbers.
Monthly costAmountWhere to get a real number
Loan payment$275A written loan quote
Insurance$150A quote for the exact car
Fuel or charging$120Your miles ÷ its mpg × your price per gallon
Maintenance and repairs$80The owner's manual schedule, plus a repair cushion
Total$62510% of $6,250 gross a month

Here's what's easy to miss: every dollar of running cost comes out of your price. If insurance on the car you want is $100 a month higher, your price falls from $16,984 to $12,242. Get an insurance quote before you fall for a car, not after. You can compare the fuel costs of models at fueleconomy.gov.

The mistake that makes a car look affordable

A longer loan makes more car seem affordable at the same payment. At $275 a month, 48 months buys a $14,726 car and 84 months buys a $21,052 car, at the same rate. But interest goes from $1,716 to $4,879, and the CFPB warns a longer loan puts you at risk of negative equity for longer. In real life, the 84-month rate may also be higher.

A better rate is the cheaper way to get more car. Two points off, at 5%, lifts this 60-month budget from $16,984 to $17,626 without adding any months. Shop for the loan before the car. The CFPB suggests negotiating the total cost, not only the monthly payment.

This tool can't see your credit, your other debts, or what a lender would approve, and approval doesn't mean a payment fits your budget. If your budget is tight, a nonprofit credit counselor can review the whole thing with you. Once you've picked a price, take it to the auto loan calculator, and if you're still deciding how to pay, try the lease vs. buy calculator.

Common questions

How much car can I afford with a $100,000 salary?

About $26,863 if all car costs stay within 10% of gross income, using this page's example inputs. If 10% covers only the payment, it's about $43,460. Your down payment, rate, and running costs will move both figures.

How much car can I afford for $500 a month?

About $27,653 over 60 months with $5,000 down at 7%, 6.5% tax, and $800 in fees. Over 48 months it's about $23,549, and over 72 months about $31,480.

Does the price include sales tax?

The headline price is the price before tax. The calculator takes tax and fees out of your budget first, so you won't come up short at the dealer if your inputs are right.

Should the 10% include insurance and gas?

This calculator counts them by default, because they're real costs of having the car. You can turn that off in the advanced options to apply the limit to the payment alone, which allows a pricier car and a tighter budget.

What rate should I use?

A rate from a real quote. This site doesn't publish typical rates, because yours depends on your credit, the lender, and the car. The 7% here is only an example, and the "Rate 1% lower" what-if shows how much a rate is worth.

Sources

  1. Take control of your auto loan · Consumer Financial Protection Bureau
  2. Financing or leasing a car · Federal Trade Commission
  3. Fuel economy information · U.S. Department of Energy and Environmental Protection Agency

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