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Lease vs buy: the 3-year net cost
The same car, both ways — lease out-of-pocket vs buy cost minus the equity you keep.
X VS Y COMPARISON · MONEY · CARS
Lease vs Buy a Car: Which Wins in 2026?
A $35,000 car, three years. Lease it: $2,500 down, $449 a month, hand the keys back — $19,059 all-in. Buy it: $4,000 down, $606.55 a month, sell it at a 55% residual — $20,202.02 net after the $5,633.80 of equity you keep. At the defaults, leasing wins by $1,143.02 — which surprises almost everyone, because the lease’s cheap monthly payment is only half the story; the buyer’s hidden half is the equity the loan builds. But the winner flips on two variables: miles and years. Run your numbers below — then read the two branches that change the answer.
The 60-second rule
Leasing wins the 3-year window; buying wins every window after about year five. At the defaults the lease costs $19,059.00 over three years and buying costs $20,202.02 net of equity — the lease takes the window by $1,143.02. But a lease is a subscription that never ends: three back-to-back lease cycles cost roughly $63,530 over ten years, while buying once and driving it for a decade costs about $46,393 — buying wins the decade by $17,136.96. The whole debate is really a question about how long you keep cars, and how many miles you drive.
How each side really works
Lease. You pay for depreciation + a rent charge + fees, not the car. The monthly payment covers the value the car loses over the term (price minus residual), plus interest on the money factor (multiply it by 2,400 to see the APR — 0.00250 is 6%), plus tax. What you never pay for is equity: at turn-in you own nothing, and you pay a $300–$500 disposition fee for the privilege of giving the car back. Mileage is capped — usually 12,000 a year — and every extra mile bills $0.15 to $0.30.
Buy. You pay for the whole car, plus interest, minus what it is still worth. Early loan payments are mostly interest, so equity builds slowly — after 36 of 60 payments at 6.5% on a $31,000 loan, you still owe $13,616.20. But a 55% residual means the car is worth $19,250, so you walk away with $5,633.80 of equity — money the lease driver simply never accumulates. Keep the car past the loan and the payment-free years are pure savings.
The worked example, line by line
Lease path, 36 months: $2,500 due at signing + ($449 × 36 = $16,164) + $395 disposition fee = $19,059.00. Nothing back at the end.
Buy path, same 36 months: $4,000 down + a $31,000 loan at 6.5% for 60 months = $606.55/mo. Paid in 36 months: $4,000 + ($606.55 × 36) = $25,835.82. Loan balance remaining: $13,616.20. Car value at 55%: $19,250. Equity: $19,250 − $13,616.20 = $5,633.80. Net cost: $25,835.82 − $5,633.80 = $20,202.02.
Verdict at defaults: $20,202.02 − $19,059.00 = lease wins by $1,143.02 over three years. High-mileage branch: drive 18,000 mi/yr — 6,000 miles over the cap × 3 years × $0.25 = $4,500 in overage fees, and the lease path costs $23,559.00: buying wins by $3,356.98. Ten-year branch: buy once ($4,000 + 60 × $606.55 + ~$6,000 maintenance) ≈ $46,393 vs perpetual leasing ≈ $63,530: buying wins the decade by $17,136.96.
Output · formula · meaning
| Output | Formula | What it means |
|---|---|---|
| Lease 3-year cost | due at signing + monthly × term + disposition + mileage overage | $19,059.00 at the defaults — every dollar out of pocket, nothing back. |
| Buy 3-year net cost | down + payments made − (residual value − loan balance) | $20,202.02 at the defaults — what buying really cost after the equity you kept. |
| Your equity at 3 years | residual value − remaining loan balance | $5,633.80 at the defaults — the buyer’s hidden half of the comparison. |
| Monthly payments | lease: quoted; buy: amortized loan payment | $449.00 vs $606.55 — the lease looks cheaper monthly because it skips the equity part. |
Who uses this
- New-car shoppers: settling the lease-vs-buy argument with their actual deal sheet, not a rule of thumb.
- High-mileage commuters: checking whether the overage fee quietly kills the lease before they sign.
- Serial leasers: seeing the 10-year price of always driving new — about $17,136.96 at the defaults.
- Deal-sheet detectives: converting the money factor to an APR (multiply by 2,400) to spot a marked-up rate.
Accuracy & limitations
Compares the same car over the same window — the only fair way. It assumes the buy side sells (or could sell) at the entered residual; real trade-in values vary with condition, market, and mileage. It excludes insurance differences (leases often require higher coverage), maintenance and repairs, state taxes and registration, and the time value of the down payments. The 10-year branch uses a maintenance estimate, not your car’s actual repair history. Not financial advice.
Cite this calculatorBright Side Kit. “Lease vs Buy a Car: Which Wins in 2026?.” brightoolbox.com, 2026.
Bright Side Kit. "Lease vs Buy a Car: Which Wins in 2026?." https://brightoolbox.com/lease-vs-buy-car/ Accessed October 23, 2026.Frequently asked questions
Is leasing a car a waste of money?
Not automatically. Over a 3-year window a lease can genuinely win — $1,143.02 at the defaults. It becomes expensive when it is perpetual: back-to-back leases mean you pay for the steepest depreciation years forever and never build equity. One lease is a choice; a lifetime of leases is a subscription to depreciation.
What is a money factor, and how do I convert it to an APR?
The money factor is the lease’s interest rate in disguise. Multiply it by 2,400 to get the equivalent APR — a 0.00250 money factor is about 6% APR. Dealers sometimes mark it up above the lender’s buy rate, so always ask “what is the buy-rate money factor?” and compare it against posted rates.
Should I put a big down payment on a lease?
No. A big down payment lowers the monthly payment but if the car is totaled or stolen, that money vanishes — gap coverage protects the lender, not your down payment. Put as little down as the deal allows and negotiate the selling price (capitalized cost) instead.
What happens if I drive more miles than the lease allows?
You pay the contract overage rate — usually $0.15 to $0.30 per mile. At 6,000 excess miles a year for 3 years at $0.25, that is $4,500, which flips the defaults from a $1,143.02 lease win to a $3,356.98 buy win. If you drive 15,000+ miles a year, buying is almost always the safer math.
Can I negotiate a lease, or is the price fixed?
You can negotiate the capitalized cost (the selling price) exactly like a purchase — that is your biggest lever. You can sometimes negotiate a marked-up money factor down to the buy rate. You cannot negotiate the residual value; the bank sets it. Haggling the sale price down is the single best way to cheapen a lease.
When does buying clearly beat leasing?
Three situations: long ownership (keep a car 7–10 years and the payment-free years crush leasing — about $17,136.96 cheaper over a decade at the defaults), high mileage (overage fees erase the lease’s edge), and cheap financing (a low APR builds equity fast). Leasing wins for low-mileage drivers who genuinely want a new car every 2–3 years.