A car’s monthly payment is only one part of its price. This five-year ownership cost worksheet shows how to compare vehicles using purchase price, incentives, financing, fuel, insurance, maintenance, tires, taxes, fees, and resale value so you can choose the option that fits your actual budget.
Overview
A five-year cost of ownership comparison, often called total cost of ownership or TCO, estimates how much a vehicle will cost you from purchase through the end of a selected ownership period. It is more useful than comparing sticker prices alone because two cars with similar prices can have very different fuel, insurance, maintenance, financing, and depreciation costs.
Use the worksheet for an SUV comparison, sedan comparison, truck comparison, or a review of new and used cars for sale. It can also help when comparing a dealer listing with a private-party vehicle, or a conventional vehicle with a hybrid or electric model. The goal is not to predict the future precisely. The goal is to apply the same assumptions to every vehicle so the differences are visible.
The basic formula is:
Five-year ownership cost = purchase costs + operating costs + financing costs − estimated resale value
For a financed vehicle, separate the amount you pay from the vehicle’s cash price. A loan payment includes principal and interest, while the vehicle’s purchase price is the amount that establishes your ownership stake. To avoid double-counting, a practical spreadsheet can show both views:
- Cash-flow view: money leaving your account, including the down payment, loan payments, fuel, insurance, maintenance, taxes, and fees.
- Economic-cost view: depreciation, interest, operating costs, taxes, and fees, with the remaining vehicle value deducted at the end.
Choose one method for comparing vehicles and use it consistently. The economic-cost view is generally easier for a long-term comparison because it treats the vehicle’s remaining value as an asset rather than treating every loan principal payment as a separate cost.
How to estimate five-year ownership cost
Create one column for each vehicle and one row for each cost category. You can copy the following structure into a spreadsheet:
| Category | Vehicle A | Vehicle B | How to calculate |
|---|---|---|---|
| Agreed vehicle price | Listing or negotiated price before taxes and fees | ||
| Incentives or discounts | Subtract only incentives you actually qualify for | ||
| Taxes and fees | Use the dealer’s written quote or local estimate | ||
| Financing interest | Use the lender’s total interest figure | ||
| Fuel or charging | Annual miles × energy cost per mile × five | ||
| Insurance | Annual premium × five | ||
| Maintenance and repairs | Use the maintenance schedule and a repair reserve | ||
| Tires | Expected replacement sets and installed cost | ||
| Estimated resale value | Subtract from the total at year five | ||
| Five-year ownership cost | Add costs and subtract resale value |
For a spreadsheet formula, the final row can be written as:
=Purchase price − incentives + taxes and fees + interest + fuel or charging + insurance + maintenance and repairs + tires − resale value
Do not automatically treat your trade-in value as a discount unless it is part of the actual transaction. Record the trade-in’s agreed value, any remaining loan payoff, and the net equity separately. For a broader vehicle-shopping process, review your car listing comparison checklist before entering a price into the worksheet.
Inputs and assumptions
Purchase price, incentives, taxes, and fees
Start with the realistic transaction price rather than the advertised headline price. Enter dealer discounts, destination charges, documentation fees, registration, taxes, and other mandatory charges as separate rows. For a used vehicle, include inspection or immediate repair costs if you expect to pay them after purchase. If you are comparing cars for sale near me from different sellers, request an itemized out-the-door quote so the comparison does not mix incomplete prices.
Financing
Record the loan amount, annual percentage rate, term, down payment, and total interest. A car loan calculator can estimate the payment, but the lender’s disclosure is the better input when available. Compare financing separately from the vehicle itself: a temporary promotional rate, a larger down payment, or a loan offered through a dealer can change the cash flow without changing the vehicle’s underlying ownership cost.
For buyers considering bad credit car financing, use the actual offer rather than a generic rate assumption. A longer term may reduce the monthly payment but increase total interest and can leave less equity if the vehicle’s value falls quickly.
Fuel or charging
Estimate annual driving first. Then use the vehicle’s expected real-world efficiency and a fuel or electricity price that reflects your location and driving pattern. The formula is:
Annual energy cost = annual miles ÷ miles per gallon × fuel price
For an electric vehicle, substitute the energy used per mile and your charging cost. If you charge at different rates, create separate home, workplace, and public-charging rows. Keep the assumption identical in structure for every vehicle.
Insurance, maintenance, repairs, and tires
Insurance depends on factors such as driver history, location, coverage, and the specific vehicle, so request quotes for each finalist. Maintenance estimates should reflect the manufacturer’s schedule, expected mileage, and the vehicle’s warranty position. Add a repair reserve for a used vehicle, especially when service records are incomplete. Tire costs deserve their own row because tire size, vehicle weight, driving style, and replacement timing can materially change the result.
For a certified pre-owned vehicle, enter the warranty coverage and inspection terms you can verify, but do not assume every repair is covered. The guide to certified pre-owned versus used cars can help you identify which warranty and inspection details belong in your assumptions.
Depreciation and resale value
Depreciation is usually the difference between what you pay and what the vehicle is worth when you sell or trade it. Estimate the year-five resale value using comparable listings, valuation tools, and the vehicle’s expected mileage and condition. Treat the result as a range rather than a guaranteed number. Enter a low, middle, and high resale estimate to see whether the decision changes under different outcomes.
Worked example: comparing two hypothetical vehicles
Consider two hypothetical five-year choices driven 12,000 miles per year. Vehicle A is a new compact sedan priced at $27,000 after an assumed discount. Vehicle B is a used compact SUV priced at $25,000. These figures are examples for demonstrating the method, not market recommendations or current price benchmarks.
| Five-year category | Vehicle A | Vehicle B |
|---|---|---|
| Purchase price after assumed discount | $27,000 | $25,000 |
| Taxes and fees | $2,000 | $1,900 |
| Financing interest | $3,000 | $4,000 |
| Fuel or charging | $7,000 | $9,000 |
| Insurance | $8,000 | $9,000 |
| Maintenance and repairs | $3,500 | $5,500 |
| Tires | $1,200 | $1,600 |
| Estimated year-five resale value | −$15,000 | −$12,000 |
| Estimated five-year cost | $36,700 | $44,000 |
In this hypothetical comparison, Vehicle B starts with a lower purchase price but has higher assumed interest, energy, insurance, maintenance, tire, and depreciation costs. The result does not prove that every sedan will cost less than every SUV. It shows why a purchase-price comparison alone can miss the larger cost pattern. Change the mileage, insurance quote, financing offer, or resale assumption and recalculate before making a decision.
When comparing a lease with a purchase, do not force both into the same ownership formula without adjustment. A lease has payments, fees, mileage limits, and possible end-of-term charges rather than an owned vehicle’s resale value and equity. See the lease-or-buy comparison for a separate framework.
When to recalculate
Revisit the worksheet whenever a major input changes. Recalculate after receiving a firm dealer or lender quote, changing your annual mileage, moving to a different insurance location, switching from a new vehicle to a used one, or finding that a vehicle requires different tires or scheduled services than first assumed.
It is also useful to run three scenarios:
- Base case: your best estimate for price, mileage, insurance, fuel, maintenance, and resale.
- Conservative case: higher operating costs, a higher financing cost, and a lower resale value.
- Favorable case: lower operating costs and a stronger resale value supported by comparable vehicles.
Refresh general assumptions when fuel or charging prices, financing offers, insurance premiums, or maintenance benchmarks move. Update resale estimates when the vehicle’s mileage or condition changes. For a used vehicle, recalculate after an inspection reveals deferred maintenance. If you plan to refinance, replace the original interest and payment assumptions with the new loan terms.
To use the worksheet today, gather itemized out-the-door prices for your finalists, request insurance quotes, enter your real annual mileage, and record each financing offer. Then calculate a base, conservative, and favorable five-year result. Keep the spreadsheet with the vehicle’s listing, inspection report, and loan disclosure so you can verify every assumption before signing. A complete cost comparison will not remove uncertainty, but it will make the decision easier to explain, test, and revisit.
