Buy vs. Lease Car Calculator

Residual value is the leasing company's estimate of what the car will be worth at the end of the lease term. It is expressed as a percentage of the MSRP. For example, a $40,000 car with a 55% residual after 36 months is projected to be worth $22,000 at lease end.

Why it matters:

• It determines your monthly payment — Your lease payment is essentially the difference between the vehicle's capitalized cost and the residual value, spread over the lease term, plus interest (the money factor). A higher residual means you are “renting” less of the car's value, so your payment is lower.
• It affects the buyout option — At lease end, you can usually buy the car for the residual value plus a purchase fee. If the car's market value is higher than the residual, this buyout is a bargain. If it is lower, you walk away and let the leasing company absorb the depreciation.
• It determines lease equity — In some cases, especially for vehicles that hold value well (Toyota Tacoma, Porsche 911, Honda Civic), the market value at lease end significantly exceeds the residual. You can buy out the lease and sell or trade in for a profit, or use that equity as a down payment on your next vehicle.

Vehicles with high residual values (trucks, certain SUVs, luxury brands like Lexus and Porsche) generally make the best leases. Vehicles with low residuals (many domestic sedans, high-depreciation luxury cars like BMW 7-Series) make poor leases because you pay for most of the depreciation anyway.

Pro tip: Never negotiate the monthly payment. Negotiate the capitalized cost (selling price), the money factor (interest rate), and verify the residual is the manufacturer's published number. Dealers can manipulate the monthly payment by extending the term or hiding fees.

Leasing looks simple on paper — low monthly payment, new car every few years. But there are several costs that are easy to overlook, and they can make leasing significantly more expensive than it first appears.

Hidden costs to watch for:

• Excess mileage charges — The standard lease allows 10,000-12,000 miles per year. Every mile over costs $0.15-$0.30. If you drive 15,000 miles/year on a 10,000-mile lease over 36 months, that is 15,000 excess miles at $0.20 each = $3,000 due at turn-in.
• Disposition fee — Most leases charge a $300-$500 fee when you return the vehicle (unless you lease another from the same brand). This is often buried in the contract.
• Wear-and-tear charges — Dents, interior stains, tire wear beyond “normal” can result in $500-$2,000+ in charges at lease return. Definitions of “normal” vary by lessor.
• Acquisition fee — A $600-$1,200 fee charged by the bank that writes the lease. This is often rolled into the capitalized cost, so you pay interest on it too.
• Gap insurance (or lack thereof) — If the car is totaled, standard insurance pays market value, not what you owe on the lease. Gap insurance covers the difference. Some leases include it; others do not.
• No equity at the end — After 36 months of payments, you own nothing. With a purchase, you have an asset. Over a lifetime of driving, this difference compounds significantly.
• Early termination penalties — Breaking a lease early is extremely expensive. You typically owe the remaining payments plus a penalty, which can exceed just keeping the car.

When leasing still makes sense despite the costs: If you are in a high-tax-bracket state that allows lease payment deductions for business use, or if you place extreme value on always having the latest safety and technology features, the hidden costs may be an acceptable premium. But you should always calculate the total cost including all fees, not just the advertised monthly payment.

When you buy a car with a loan, you build equity — the difference between the car's market value and what you still owe on the loan. With a lease, you build zero equity unless you exercise the buyout option at the end.

The equity timeline when buying:

• Year 1: You likely have negative equity. The car depreciated 15-25% but you have only paid down a small portion of the principal (early payments are mostly interest). With a 20% down payment, you are close to break-even.
• Years 2-3: Depreciation slows to about 10-15% per year, and a larger share of each payment goes to principal. Most buyers cross into positive equity territory during this period.
• Years 4-5: The loan is paid off (on a 60-month term). You now own the car outright. The car might be worth 40-50% of its original price, and that is all equity.
• Years 6-10: Every month without a car payment is pure savings. The car continues to depreciate but slowly. This is where buying becomes dramatically cheaper than leasing, because you have zero vehicle payment while a leasee is starting a new lease.

With a lease:

• You pay for the car's depreciation over the lease term but receive no ownership stake in return.
• At lease end, you can walk away (equity = $0) or exercise the buyout option. If the car's market value exceeds the residual, you capture that spread as equity by buying it out.
• If you lease repeatedly every 3 years, you are perpetually paying the steepest part of the depreciation curve and never reaching the “free” ownership years.

The wealth impact: Over 30 years of driving, a buyer who keeps each car for 8 years spends roughly 40-50% less on vehicles than a serial leasee, assuming comparable cars. That savings, invested, can compound to six figures. This is the strongest argument for buying over leasing.

The break-even hold period is the number of years you must keep a purchased car before its total cost of ownership becomes cheaper than leasing the same vehicle repeatedly. It is the single most important metric for deciding between buying and leasing.

How the break-even works:

• In the early years (1-3), leasing is often cheaper in total outlay because the purchase involves a down payment and higher monthly loan payments. The leasee's monthly cost is lower.
• At year 4-5, the buyer finishes the loan and has zero vehicle payment. The leasee starts a new lease with new payments. The cumulative cost lines cross.
• After the crossover point, every additional year of ownership widens the gap in favor of buying. The buyer has only insurance, fuel, and maintenance costs. The leasee is still making lease payments.

Factors that shift the break-even earlier:

• Higher lease payments (low residual or high money factor)
• Lower purchase loan interest rate
• Choosing a reliable car with low maintenance costs
• Lower depreciation rate on the purchased vehicle

Factors that push the break-even later:

• Very attractive lease deals (manufacturer-subsidized residuals, low money factors)
• High purchase loan interest rate (poor credit)
• Expensive out-of-warranty repairs on the purchased car
• High opportunity cost of the larger down payment tied up in the purchase

Typical range: For most mainstream vehicles, the break-even is around 4-6 years. If you know you will keep a car for at least 5 years, buying is almost always the better financial decision. If you know you will swap every 2-3 years, leasing deserves serious consideration.

Mileage is one of the biggest swing factors in the buy vs. lease equation. Leases impose strict annual mileage caps, and exceeding them incurs per-mile penalties that can add thousands to the total cost.

Typical lease mileage terms:

• 10,000 miles/year — Lowest and cheapest option. Works only if you have a short commute or a second car.
• 12,000 miles/year — The most common default. Equates to about 230 miles/week, which covers an average commute plus light weekend driving.
• 15,000 miles/year — Higher allowance for longer commutes. The lease payment increases by $20-$50/month.

Overage penalties:

• Most leases charge $0.15-$0.30 per excess mile. On a 36-month lease, driving 5,000 miles/year over a 12,000-mile limit means 15,000 excess miles. At $0.20/mile, that is $3,000 due at lease return.
• Luxury brands often charge more per mile ($0.25-$0.30), making the penalty even steeper.

Cost-per-mile comparison:

• When buying, your cost per mile decreases the more you drive because the fixed costs (depreciation, loan interest) spread over more miles. A buyer who drives 20,000 miles/year has a lower cost per mile than one who drives 10,000.
• When leasing, your cost per mile increases if you exceed the cap due to penalties. The economics flip against you.

Rule of thumb: If you drive more than 12,000 miles per year, buying is almost certainly cheaper. The excess mileage penalties on a lease, combined with the higher base payment for a higher mileage allowance, erode most of leasing's cash-flow advantage. This calculator factors in your expected mileage to show the cost-per-mile comparison for both scenarios.

The decision to buy out your lease at the end comes down to one comparison: is the buyout price lower than the car's fair market value? If yes, you are getting a deal and should seriously consider buying. If no, return the car and walk away.

When to buy out the lease:

• Market value exceeds residual — Check the car's value on KBB or Edmunds. If the residual is $18,000 but the car is worth $22,000 in the used market, you have $4,000 in equity. Buy it out and either keep it or sell it and pocket the difference.
• You love the car and it is reliable — You know the car's history because you drove it. There are no surprises. Keeping it avoids the transaction costs of acquiring a new vehicle.
• You went over miles or have wear-and-tear — If you would owe $2,000+ in excess mileage and damage fees, buying out the lease and selling the car yourself may net more than returning it and paying the penalties.

When to return the car:

• Market value is below the residual — The leasing company set the residual too high. You would be overpaying for the car. Let them absorb the loss.
• You want a different vehicle — If your needs have changed (new family, different commute), returning and getting the right vehicle makes more sense than buying a car that does not fit.
• Expensive repairs are imminent — If the car will need major work soon (timing belt, suspension, transmission service), walking away lets you avoid those costs.

The buyout math: Add the residual value plus any purchase fee (typically $300-$500) plus sales tax on the buyout price. Compare this total to the car's fair market value. If the total buyout cost is less than market value, buying is the financially optimal choice regardless of whether you keep the car or sell it.

Leased vehicles generally require more expensive insurance coverage than purchased vehicles because the leasing company owns the car and wants full protection. This insurance difference is a real cost that should be factored into any buy vs. lease comparison.

Lease insurance requirements:

• Higher liability limits — Most lessors require 100/300/100 or even 250/500/100 liability coverage, higher than the state minimums many buyers carry.
• Comprehensive and collision required — You cannot drop comprehensive or collision coverage on a leased vehicle, even if it would make financial sense on an older owned car.
• Lower deductibles — Some lessors require $500 or lower deductibles, which increases premiums compared to the $1,000+ deductibles that cost-conscious buyers choose.
• Gap insurance — Recommended (and sometimes required) for leases. Adds $20-$50/month if not included by the lessor.

Typical cost difference:

• For a comparable new vehicle, lease-required insurance is typically $50-$150/month more than the minimum coverage a buyer might carry.
• The gap widens over time. After 5+ years, many owners drop comprehensive/collision on their paid-off car, reducing insurance to $80-$120/month. A leasee is always paying full coverage on a new car.

Important caveat: Carrying full coverage is smart even on a purchased car until it is worth less than about $5,000-$10,000. The insurance difference is most relevant for the later years of ownership when the car's value drops below that threshold and you can self-insure the collision risk.

This calculator lets you enter the insurance cost difference between buying and leasing to capture this real-world cost in the comparison.

Yes, but only in specific circumstances. Leasing gets a bad reputation in personal finance communities because it is often used to buy more car than someone can afford. However, there are legitimate scenarios where leasing is the financially optimal choice.

When leasing makes financial sense:

• Business use with tax deductions — If you use the car for business, lease payments are often fully deductible as a business expense. For someone in a 35% tax bracket, a $500/month lease effectively costs $325 after the deduction.
• You always want the latest safety technology — If having automatic emergency braking, lane-keeping assist, and updated crash structures is a priority, leasing guarantees you are always in a car with the newest features. This has real safety value.
• Manufacturer-subsidized lease deals — Automakers sometimes subsidize leases on slow-selling models with artificially high residuals and low money factors. These deals can make leasing cheaper than buying the same car.
• You have better uses for the capital — If the down payment difference between buying and leasing is $10,000+, and you can invest that money at a higher return than the effective cost of leasing, the opportunity cost favors leasing.
• Electric vehicle uncertainty — EV technology and charging infrastructure are evolving rapidly. Leasing an EV protects you from battery degradation risk and technology obsolescence while letting you upgrade as the technology improves.

When leasing is a bad decision:

• You are using it to afford a car that is too expensive for your income
• You drive more than 12,000-15,000 miles per year
• You have kids, pets, or a lifestyle that leads to excessive wear and tear
• You plan to modify the vehicle in any way

The real test: If you are considering leasing because the monthly payment on a purchase is too high, that is a red flag. Leasing should be a deliberate financial choice, not a way to stretch beyond your means.

To compare buying versus leasing accurately, you need to calculate the total cost of ownership at multiple time horizons. The math is different at each point because of how depreciation, loan payoff, and maintenance costs change over time.

Total cost of buying formula at any year N:

• Down payment (paid upfront)
• + All loan payments made through year N (or until payoff, whichever is earlier)
• + Insurance premiums for N years
• + Maintenance and repairs for N years (increases in later years as warranty expires)
• - Resale value of the car at year N (this is your equity, and it reduces total cost)

Example at 3, 5, and 7 years ($35,000 car):

• 3 years: $7,000 down + $16,200 loan payments + $5,400 insurance + $2,700 maintenance - $21,000 resale = ~$10,300 net cost
• 5 years: $7,000 down + $27,000 loan payments + $9,000 insurance + $6,000 maintenance - $14,000 resale = ~$35,000 net cost
• 7 years: $7,000 down + $27,000 loan payments (paid off at year 5) + $12,600 insurance + $10,500 maintenance - $9,800 resale = ~$47,300 net cost

Notice that the net cost barely increases between years 5 and 7 because there are no more loan payments. Years 5-7 cost only insurance, maintenance, and depreciation (which is slowing down). This is why keeping a car past the loan payoff date is the most economical strategy.

Cost per mile: Divide the total cost by your total miles driven over that period. This gives you a true apples-to-apples comparison between different vehicles and between buying and leasing. A typical owned car costs $0.30-$0.60 per mile depending on the vehicle and hold period.