Should I Lease or Buy a Car? The Real Math for 2026
An honest comparison of leasing vs. financing vs. buying outright — with the income, mileage, and time-horizon factors that flip the answer.
The lease-vs-buy decision gets pitched as a lifestyle choice. It's not — it's a math problem with three honest answers depending on how long you'll keep the car, how many miles you drive, and what you'd do with the cash difference.
How a lease actually works
You pay for the depreciation that happens during the lease term (plus interest, called 'money factor'). At the end of 36 months, you give the car back and walk away — or buy it at the residual value the lease set up front. You pay sales tax only on the monthly payments, not the full vehicle price.
When leasing wins
- You want a new car every 3 years and you'd otherwise trade in early (taking depreciation hits)
- Your annual mileage is under 12,000 — lease mileage caps make this critical
- You operate a business and can write off the lease payments
- You drive a luxury car where the lease residuals are artificially high
When buying wins
- You'll keep the car 6+ years — depreciation amortizes and you eventually own a paid-off asset
- You drive more than 12,000 miles/year — lease overage charges run $0.15–$0.30/mile
- You modify your car or rough it up
- Long-term wealth building is a real priority — paid-off cars are the cheapest miles in transportation
Run any vehicle through the 20/4/10 rule, payment-to-income, and DTI checks — and see your true max affordable price in seconds.
Try the Car Affordability CalculatorWorked example: 6-year horizon
$32,000 sedan, 6-year horizon, 12k miles/year. Lease path: $400/mo × 36 months × 2 leases = $28,800 over 6 years, no asset at the end. Buy path: $580/mo × 60 months loan payment = $34,800 + ~$2,000 interest, residual value at year 6 ≈ $14,000. Net cost of buying = $34,800 − $14,000 = $20,800 over 6 years. Buying wins by ~$8,000.
Worked example: 3-year horizon
Same car, 3-year horizon. Lease: $400/mo × 36 = $14,400. Buy and trade in at year 3: $580/mo × 36 = $20,880 + $9,000 remaining loan balance − $19,000 trade-in value = $10,880 net. Buying still wins, but by less ($3,500), and you took on more financing risk.
The third option: buy used with cash
On a 6+ year horizon, a $15,000 used car paid in cash crushes both lease and finance math. Total cost over 6 years: $15,000 minus residual ($6,000) = $9,000. The math gets lopsided fast — but only if you have the cash without raiding other savings.
Get more guidance like this in your inbox
Weekly emergency-fund tactics, milestone checklists, and the next article — delivered free.
Run your own number
Get a personalized emergency fund target based on your income, expenses, and job stability.
Open the calculator