Car Lease vs Buy Calculator: Which Option Actually Costs Less?

The lease payment is lower. The total cost is not.

Leasing is not renting. It is financing the depreciation of a vehicle during a specific period. At the end of the lease, you have paid for the portion of the car's value you consumed and you own nothing. At the end of a purchase loan, you own the car.

The math depends on how long you keep the car. Short term, leasing is competitive. Long term, buying wins decisively.

The Base Comparison

$40,000 new car (SUV class), 3-year comparison:

Lease scenario:

• Down payment (cap cost reduction): $2,000
• Monthly payment: $450
• 3-year total payments: $16,200
• Mileage overage (assume none): $0
• End of lease: return car, nothing

Total cost: $18,200. Assets owned: $0.

Buy + sell scenario:

• Down payment: $4,000 (10%)
• Loan: $36,000 at 7%, 60 months
• Monthly payment: $713
• 3-year total payments: $25,668
• Remaining loan balance at 36 months: approximately $20,000
• Car value after 3 years (avg $40k SUV depreciates to 55% of MSRP): $22,000
• Sale proceeds minus payoff: $22,000 - $20,000 = $2,000 equity

Total cost: $25,668 in payments - $2,000 equity = $23,668. Net outflow minus what you recover.

Lease wins by $5,468 over 3 years if you are always in a new car.

But compare the right scenarios:

Buy + keep 7 years:

• 60-month loan: $713/month × 60 = $42,780 total
• Years 6 and 7: No payment. $0 × 24 months = $0.
• Total payments over 7 years: $42,780
• Annual cost: $42,780 / 7 = $6,111/year
• Car value at year 7: $12,000-$15,000 (still worth something)
• Net cost accounting for residual: approximately $30,000 / 7 = $4,285/year

Perpetual lease (new car every 3 years):

• $6,066/year forever (lease payments + cap cost reductions annualized)
• Asset owned: $0 forever

Buy and keep 10 years:

• $42,780 loan payments over 5 years
• Zero payments years 6-10
• Maintenance increases but ownership is cheap
• Annual cost: approximately $3,200-$4,000/year

Buying and keeping a car for 10+ years is the cheapest way to have reliable transportation.

Real Cost of Ownership

Both lease and purchase have costs beyond the payment:

| Cost | Lease | Buy | |------|-------|-----| | Down payment | Smaller (or none) | Typically 10-20% | | Monthly payment | Lower | Higher | | Insurance | Higher (lessor requires comprehensive) | You choose coverage | | Maintenance | Covered under warranty (new car) | Starts after warranty | | Mileage penalty | $0.15-$0.25/mile over limit | None (you own it) | | Wear and tear | Charged at end | None (it is yours) | | Modification | Not allowed | Do anything | | End of term | Own nothing | Own car (asset) |

Lease insurance requirements typically add $200-$400/year in additional premium vs. an older owned vehicle where you might drop comprehensive/collision.

The Mileage Trap

Standard leases include 10,000-12,000 miles/year. The US average driver does 15,000 miles/year. Excess miles at lease end cost $0.15-$0.25/mile.

5,000 excess miles/year × 3 years = 15,000 excess miles. At $0.20/mile: $3,000 penalty at lease end.

This single issue makes leasing expensive for average drivers. Negotiate the mileage upfront (higher mileage leases cost more per month) or buy.

When Leasing Makes Sense

Business use. Lease payments are generally fully deductible as a business expense. Depreciation deductions on purchased vehicles have limits and require record-keeping. For high-business-use vehicles, leasing simplifies the deduction.

Always wanting the newest technology. If you will replace the car every 3 years regardless, leasing avoids the transaction friction of selling. You always drive under warranty. You get the latest safety features.

Lower upfront cash need. Leasing ties up less capital. In a period where that capital earns high returns elsewhere, the opportunity cost calculation shifts. (At current investment returns, this argument is weak for most people.)

Short-term need. Relocating internationally in 2 years? Leasing makes more sense than buying and selling quickly.

The Business Lease Math

If you use the car 70% for business:

• Lease payment: $450/month
• Business deductible portion: $315/month
• After-tax cost at 24% bracket: $315 × (1 - 0.24) = $239/month business cost

Compare to ownership where only the business-use percentage of depreciation is deductible. For high-business-use vehicles, the comparison shifts.

Frequently Asked Questions

Is there such a thing as a good lease deal?

Yes. Residual value (what the car is worth at end of lease) and money factor (lease equivalent of interest rate) determine the payment. A car with high residual value and low money factor leases cheaply. High residual means you are financing less depreciation. Honda Civics and Toyota Camrys have historically high residuals. Trucks and SUVs with strong resale hold up well too.

Can I buy a car at the end of a lease?

Yes. The purchase price is the residual value set at lease origination. If the car is worth more than the residual at lease end (common in recent markets), buying and selling produces profit. If worth less, walk away.

What is the real cost of a car payment in terms of wealth building?

A $500 car payment over 5 years is $30,000 paid. Invested at 7%, $500/month for 5 years then left to compound for 25 more years = $350,000. The car costs you $350,000 in future wealth. Driving cheaper vehicles for longer is one of the most powerful wealth-building strategies available to middle-income earners.

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