How Much Car Can I Afford?

The average new car payment in 2026 is over $730/month. The average loan term is 68 months. And the average buyer is stretching too far. A car is a depreciating asset — the moment you drive off the lot, it starts losing value. Spending too much on a vehicle is one of the most common wealth-killing mistakes in personal finance. Here is how to figure out what you can actually afford.

What Is the 20/4/10 Rule for Car Buying?

The 20/4/10 rule is the gold standard for car affordability:

• 20% down payment: Prevents you from being underwater on the loan (owing more than the car is worth)
• 4-year (48-month) maximum loan term: Keeps total interest costs reasonable and ensures you are not paying for a car long after it has depreciated
• 10% of gross monthly income for total car costs: This includes the payment, insurance, and fuel — not just the loan payment

Here is what the 20/4/10 rule looks like at different incomes:

• $50,000/year ($4,167/month): Total car costs under $417/month — realistic car price around $20,000-$22,000
• $75,000/year ($6,250/month): Total car costs under $625/month — realistic car price around $28,000-$32,000
• $100,000/year ($8,333/month): Total car costs under $833/month — realistic car price around $38,000-$42,000
• $150,000/year ($12,500/month): Total car costs under $1,250/month — realistic car price around $55,000-$65,000

Plug in your numbers with our auto loan calculator to see exact monthly payments at different prices, rates, and terms.

What Is the True Cost of Owning a Car?

The sticker price is just the beginning. The true annual cost of owning a car includes:

• Loan payment: The monthly payment over your loan term
• Insurance: $1,500-$3,000/year for full coverage on a newer vehicle. Varies wildly by age, location, and driving record.
• Fuel: $1,500-$3,000/year for the average driver (12,000 miles/year). EVs cost about 60% less in fuel/energy costs.
• Maintenance: $500-$1,200/year for a newer car, $1,500-$3,000+ for older vehicles. Oil changes, tires, brakes, and unexpected repairs.
• Depreciation: The biggest hidden cost. A new car loses 20-30% of its value in the first year and about 60% over five years. On a $40,000 car, that is $8,000-$12,000 lost in year one alone.
• Registration and taxes: $200-$800/year depending on your state

A $35,000 car financed over 5 years at 7% costs roughly $42,000 after interest. Add insurance, fuel, maintenance, and depreciation, and the true 5-year cost is closer to $55,000-$60,000. That is $11,000-$12,000/year or $900-$1,000/month all-in.

New vs. Used: The Math

Buying a 2-3 year old used car is almost always the better financial decision. Here is why:

• Depreciation savings: The original owner absorbs the steepest depreciation. A car that was $40,000 new is often $28,000-$32,000 at two years old with 25,000 miles.
• Lower insurance: Insurance on an older vehicle costs 10-20% less than the same car new
• Lower registration: Many states base registration fees on vehicle value or age
• Still under warranty: Most manufacturers offer 3-year/36,000-mile bumper-to-bumper and 5-year/60,000-mile powertrain warranties. A 2-year-old car still has warranty coverage.

The financial sweet spot is a 2-3 year old certified pre-owned (CPO) vehicle from a reliable brand. You get most of the new-car experience at 60-75% of the price.

Use our budget calculator to see how car costs fit into your overall financial picture.

When to Pay Cash vs. Finance

If you have the cash, should you pay outright? It depends on the interest rate:

• 0-3% financing: Take the loan. Your cash earns more in a high-yield savings account (4-5% APY) than you pay in interest. This is "cheap money."
• 4-6% financing: Either option works. Paying cash saves on interest; financing preserves liquidity. Personal preference wins here.
• 7%+ financing: Pay cash if possible. High-rate auto loans are expensive over time. If you cannot pay cash and the rate is above 7%, consider a less expensive car.

Why Are 72 and 84 Month Auto Loans Risky?

The industry trend toward 72- and 84-month auto loans is a trap. Here is what happens when you stretch a $35,000 loan at 7%:

• 48-month term: $838/month, $5,227 total interest
• 60-month term: $693/month, $6,583 total interest
• 72-month term: $597/month, $7,982 total interest
• 84-month term: $529/month, $9,416 total interest

The 84-month loan looks attractive at $529/month, but you pay $4,189 more in interest than the 48-month loan. Worse, you are underwater on the loan for years — owing more than the car is worth. If you need to sell or the car is totaled, you owe more than you get back.

If you need a 72+ month loan to afford the payment, the car is too expensive. Period.

How Much Car at Your Income

Here is a practical guide based on gross annual income, following the 20/4/10 rule:

• $40,000 income: $15,000-$18,000 car (reliable used sedan like Civic or Corolla)
• $60,000 income: $22,000-$26,000 car (newer used or base-model new compact)
• $80,000 income: $30,000-$35,000 car (mid-range new or 1-2 year old midsize)
• $100,000 income: $38,000-$42,000 car (well-equipped new midsize or SUV)
• $150,000+ income: $55,000-$65,000 (entry luxury or well-equipped SUV)

The Bottom Line

Follow the 20/4/10 rule: 20% down, 4-year loan, and total car costs under 10% of gross income. If the car you want does not fit these parameters, either save a larger down payment or choose a less expensive vehicle. A car should get you from A to B reliably — it should not sabotage your ability to save, invest, and build wealth.

Run the numbers with our auto loan calculator and see how the payment fits your overall monthly budget before you sign anything.