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True Cost of Owning a Car Per Month: Full Breakdown

By Shawn Cruze · Published 2026-10-11

The monthly payment is usually less than two-thirds of what a car actually costs you. Add insurance, fuel, maintenance, fees, and depreciation, and a $602 payment can turn into a monthly cost near $1,000. Below is the line-by-line formula, priced with the current 60-month bank rate, so you can fill in your own quotes.

The monthly payment is only the first line

Dealers sell the payment because it is the smallest number in the deal. It is also the only number that arrives on a fixed bill. Everything else comes as a gas receipt, a renewal notice, or a repair invoice.

Start with the loan itself. The average new-car loan rate at commercial banks for a 60-month term is 7.54%, according to the Federal Reserve's latest figure, dated 2026-08-01.

Here is what that rate does to a typical loan. For example, say you finance $30,000 for 60 months at 7.54%:

• Monthly payment: about $602
• Total paid over 60 months: about $36,100
• Interest: about $6,100

That $602 is your first line. For context on how it compares with what other buyers pay, see our breakdown of the average car payment in 2026. The rest of this article covers the lines that never show up in the dealer's math.

The six costs that make up your real monthly number

Write these six lines down. Use your own quotes wherever you have them. The figures below are examples only.

1. Loan payment. This comes from your rate, term, and amount financed. In the example above it is $602.

2. Insurance. Get a real quote on the specific car before you sign. Premiums vary widely by vehicle, ZIP code, and driving record. For example, $150 a month.

3. Fuel. Use this formula: monthly miles ÷ MPG × price per gallon. For example, 1,000 miles a month ÷ 30 MPG × $3.50 a gallon = about $117. EPA mileage ratings for specific models are published on fueleconomy.gov.

4. Maintenance and repairs. This covers oil changes, tires, brakes, and the repair you didn't plan for. Set money aside every month even if nothing is broken. For example, $80 a month, which adds up to $960 a year.

5. Registration, taxes, and fees. Take your annual registration, inspection, and any property tax on the vehicle, and divide by 12. For example, $300 a year works out to $25 a month.

6. Depreciation. This is the value the car loses each month. It gets its own section below because it behaves differently from the other five.

Lines 1 through 5 are your cash cost, the money that leaves your account. In this example:

That is $372 a month on top of the payment, before depreciation.

Depreciation: the cost you never get a bill for

Depreciation is the gap between what you pay for the car and what it is worth when you sell or trade it. No one sends you an invoice for it. You find out what it cost you on the day you trade in.

To estimate it, use this formula: (purchase price − expected resale value) ÷ months you'll own it.

For example, you buy a $35,000 car with $5,000 down and finance the other $30,000. You expect it to be worth $15,000 after five years. That is $20,000 of lost value over 60 months, or about $333 a month.

One caution about double counting. Part of your loan payment is principal, and principal builds equity in the car. So you shouldn't add depreciation on top of the full payment. That would count the same dollars twice.

Analysts handle this by keeping two separate numbers:

• Cash cost = payment + insurance + fuel + maintenance + fees. In the example, that's $974 a month. Use this for your budget.
• True economic cost = interest + depreciation + insurance + fuel + maintenance + fees. In the example, that's about $102 of average monthly interest, plus $333 of depreciation, plus $372 of running costs. The total is about $807 a month. Use this to compare cars.

The economic number tells you what owning the car really costs. The cash number tells you whether you can survive the next 60 months.

Depreciation is also why used cars often win on economic cost. The first owner absorbs the steepest part of the value drop. You pay for the slower decline that comes after.

How loan term and rate change the monthly cost

Term moves the payment more than anything else you control at the dealership. Here is the same $30,000 at current bank rates.

48 months at 7.47%. That rate is the Federal Reserve's 48-month average, dated 2026-08-01.

• Payment: about $725
• Interest: about $4,800

60 months at 7.54%:

• Payment: about $602
• Interest: about $6,100

72 months, assuming the same 7.54%:

• Payment: about $519
• Interest: about $7,400

Treat the 72-month case as a best case. Longer terms often carry higher rates than shorter ones, so your quote may come in above 7.54%.

Read those three numbers together:

• Stretching from 48 to 72 months cuts the payment by about $206.
• It also adds roughly $2,600 in interest.
• It keeps you paying while depreciation keeps running, which raises the odds you owe more than the car is worth.

A longer term lowers your cash cost per month. It raises your total cost. We compare the two most common terms in detail in 60 vs. 72-month car loans.

Rate matters too. Auto loan rates tend to move with the broader rate environment. The bank prime rate stands at 7.00%, per the Federal Reserve's 2026-10-02 reading. Your credit score determines where you land relative to these averages. A quote well above the bank average is a reason to shop the loan separately from the car.

If you want to see what rate you'd actually qualify for before you walk into a dealership, compare offers here:

What the total should be relative to your income

These are guidelines, not laws. They are useful for catching a bad deal before you sign one.

• Total car costs at 10 to 15% of take-home pay. This covers all five cash lines, not just the payment.
• The 20/4/10 rule. Put 20% down, finance for no more than four years, and keep total vehicle costs under 10% of gross income. It is strict, and that is the point.
• Debt-to-income limits. Many lenders prefer your total monthly debt payments, including the car loan, to stay under 36% of gross income. Some will go to 43% or higher. Qualifying at the upper limit does not mean the budget works.

Run the example against these guidelines. Say your take-home pay is $6,000 a month:

• 10% is $600.
• 15% is $900.
• The example's cash cost is $974.

That car is over the line before a single repair. The fix is usually a cheaper car, a bigger down payment, or a shorter list of options. A longer loan is not the fix. For a full walk-through of setting your price ceiling, read how much car can I afford.

Run your own numbers in the TrueCostCalc auto loan calculator

Open the TrueCostCalc auto loan calculator and work through it in this order:

1. Enter the price and down payment. Example: $35,000 price, $5,000 down, $30,000 financed.
2. Enter your rate. Use your real pre-approval if you have one. If not, start with the current 60-month bank average of 7.54%.
3. Set the term to 60 months. The calculator returns about $602 a month and about $6,100 in total interest.
4. Switch the term to 48 months at 7.47%. Note the higher payment (about $725) and the lower interest (about $4,800).
5. Add your five cash lines. Use your insurance quote, the fuel formula, a maintenance reserve, and monthly fees. In the example, the cash total is $974.
6. Compare that total to 10 to 15% of your take-home pay. If it's over, change the price before you change the term.

Do this before you visit the dealer. Then you are negotiating against a number you built, not one they handed you.

Frequently asked questions

How much does it cost to own a car per month?

It depends on the car, your loan, and where you live, so build the number from your own quotes. In this article's example, a $30,000 loan at 7.54% for 60 months creates a $602 payment. Add running costs and the cash total reaches about $974 a month. The economic cost, counting depreciation and interest instead of the full payment, is about $807.

What costs do people forget when budgeting for a car?

Depreciation is the biggest one, because it never arrives as a bill. Maintenance comes next. People often budget nothing until a repair hits. Registration, inspection, and vehicle taxes are also easy to miss because they are paid once a year rather than monthly.

Is it cheaper to own a used car than a new car per month?

Often, yes, mainly because the first owner absorbs the steepest depreciation. A used car may need more maintenance, so raise that line in your budget. Used-car loan rates can also differ from the new-car averages cited here. Get a quote and compare the full six-line totals, not just the payments.

How much of my income should go to car costs each month?

A common guideline is 10 to 15% of take-home pay for all car costs combined. The stricter 20/4/10 rule caps total vehicle costs at 10% of gross income. Lenders may approve you up to 36% or 43% debt-to-income, but that is a ceiling, not a target.

Does a longer loan term lower the true monthly cost of a car?

It lowers the payment, not the true cost. In the example, moving from 48 to 72 months cuts the payment by about $206 but adds roughly $2,600 in interest. That assumes the 72-month rate matches 7.54%, and real quotes are often higher. Depreciation runs at the same pace no matter how long you finance.