How to estimate your true cost of car ownership

The six cost categories of car ownership

When evaluating whether a car is affordable, most people look at the monthly payment. That's the wrong question. The right question is: what will this vehicle cost me in total over the time I own it? There are six buckets to fill:

1. Depreciation (usually the biggest)

Depreciation is the decline in your vehicle's market value over time. A new car typically loses about 20% of its value in the first year, and roughly 15% each subsequent year. By year 5, a $35,000 vehicle may be worth only $14,000–$17,000 — a loss of $18,000–$21,000 that you can never recover unless you paid cash and didn't finance.

Depreciation is the cost most buyers ignore, because it isn't a monthly bill. But it's real money. If you buy a car for $35,000 and sell it 5 years later for $15,000, you "spent" $20,000 on depreciation alone.

High-depreciation categories: luxury brands, domestic full-size trucks (lower now than historically), most sedans.
Low-depreciation categories: Toyota, Honda, Subaru (historically strong residuals), pickup trucks and SUVs in general.

2. Financing interest

If you finance, you'll pay interest on top of the vehicle price. At 7% APR on a $30,000 loan over 60 months, total interest paid is about $5,600. At 84 months (7 years), it's $7,900 — and you're still paying for a car that's worth much less.

This cost compounds with the term: a lower monthly payment often means more total interest, and it extends the period during which your loan balance exceeds your car's value ("underwater").

3. Fuel or charging

At 12,000 miles/year, 30 MPG, and $3.50/gallon, you'll spend about $1,400/year on gas — $7,000 over 5 years. At 20 MPG (an SUV in city traffic), that's $2,100/year, or $10,500 over 5 years. The difference in fuel cost between a 20 MPG and 35 MPG vehicle can be $5,000–$7,000 over 5 years.

EVs change the math: at $0.16/kWh and 3.5 miles/kWh, you'll spend about $550/year for 12,000 miles — vs. $1,400+ for a gas car. The fuel savings can offset a higher purchase price, but the break-even depends on how long you own the vehicle.

4. Insurance

The U.S. average for full-coverage auto insurance is roughly $1,700–$2,100/year (as of mid-2026), but this varies wildly by state, age, driving record, vehicle type, and credit score. Florida drivers pay over $3,000/year average; Maine drivers pay under $1,100. New vehicles require full coverage; once the car is older and paid off, you may be able to drop to liability-only.

Luxury and performance vehicles cost significantly more to insure — both because they're expensive to repair and because their driver pool has higher claim rates.

5. Maintenance

Oil changes, tire rotations, new tires, brake jobs, filters, and other routine service typically cost $500–$1,500/year depending on the vehicle type. Reliable economy cars (Toyota Corolla, Honda Civic) average closer to $500; luxury vehicles and German brands average $900–$1,500 because parts and labor cost more. Aging vehicles with deferred maintenance or reliability issues can far exceed these averages.

EVs typically have lower maintenance costs — no oil changes, fewer brake jobs (regen braking), fewer fluids. But battery-related service is expensive if it occurs.

6. State taxes and fees

These vary dramatically by state:

• Sales tax at purchase: 0% (Montana, Oregon, New Hampshire) to 8.25% (Texas, parts of Tennessee). On a $35,000 vehicle, that's $0–$2,888.
• Annual registration: Under $30/year (California's base rate, though it compounds with other fees) to $200+.
• Vehicle property tax: About 12 states levy an annual personal property tax on vehicles — Virginia, North Carolina, South Carolina, Connecticut, and others charge 0.5%–2% of the vehicle's assessed value per year.
• Title fee: Typically $15–$100, one-time at purchase.

Use the state-by-state breakdown to see your specific costs.

The 5-year number: a worked example

Let's calculate the 5-year TCO for a hypothetical $35,000 sedan in Texas (8.25% sales tax), financed at 7% APR over 60 months, driven 12,000 miles/year:

• Depreciation (est. 20% yr1 + 15%/yr): ~$19,000
• Sales tax (one-time): $2,888
• Loan interest (7% APR, 60 mo): ~$6,500
• Fuel (30 MPG, $3.50/gal): ~$7,000
• Insurance ($1,800/yr): $9,000
• Maintenance ($900/yr avg): $4,500
• Registration (~$75/yr): $375
• Total 5-year TCO: ~$49,000

The purchase price was $35,000. The total 5-year cost is ~$49,000. That's 40% more than the sticker — and this is a median scenario. Use the TCO calculator to run the numbers for your specific situation.

How to reduce your true cost

1. Buy at 1–3 years old. The first owner absorbs the steepest depreciation. A 2-year-old vehicle with 20,000–30,000 miles may cost 20–30% less and still have most of its service life and warranty.
2. Shop insurance before you commit to a vehicle. Get insurance quotes for the specific year/make/model before signing — rates can vary $500+/year between similar vehicles.
3. Shorter loan terms save thousands. A 48-month loan at the same rate costs less total interest than a 72-month loan, even if the monthly payment is higher.
4. Match the vehicle to your actual mileage. If you drive 20,000 miles/year, fuel economy matters enormously. If you drive 8,000 miles/year, fuel is a minor cost and reliability matters more.
5. Consider EVs for high-mileage drivers. The fuel and maintenance savings of an EV are real, but the break-even depends on purchase premium, how long you keep it, and electricity rates.