Lease vs Buy Auto Calculator
Compare leasing vs buying a vehicle with comprehensive cost analysis, including total costs, monthly payments, NPV comparison, break-even analysis, and opportunity cost calculations.
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Key figures and definitions for this model: โข Lease Total: $20,570 โข Buy Total: $25,002.718 โข Cost Diff: $4,432.718 โข Recommendation: Buy
Ready to run the numbers?
Why: Leasing offers lower payments and a new car every few years; buying builds equity and suits high-mileage drivers. The right choice depends on your driving habits and financial goals.
How: We compare total lease cost (payments + fees + excess mileage) vs total purchase cost (down + loan + insurance). NPV and break-even show when one option wins.
Run the calculator when you are ready.
Lease vs Buy Auto Calculator
Compare total cost of leasing vs buying. Includes NPV, break-even analysis, excess mileage, and opportunity cost.
๐ Sample Scenarios โ Click to Load
Vehicle & Financing
Fees & Incentives
Mileage & Insurance
Recommendation
Leasing is $4,433 less expensive over 36 months. Leasing may be better if you prefer lower monthly payments and want to upgrade frequently.
Detailed Comparison
| Metric | Lease | Buy | Difference |
| Total Cost | $20,570 | $25,003 | $4,433 |
| Monthly Cost (Average) | $571 | $695 | -$123 |
| Net Present Value | -$19,403 | -$27,512 | -$8,109 |
| Break-Even Month | Beyond lease term | ||
| Opportunity Cost (Down Payment) | $675 | ||
Visualizations
Total Cost Comparison
Cumulative Cost Over Time
Lease Cost Breakdown
Purchase Cost Breakdown
Step-by-Step Calculation
Lease Cost Calculation
Calculating total lease costs including all fees and payments
Lease Upfront Costs
Down Payment: $3,000 + Security Deposit: $500 + Leasing Fees: $650 - Rebate: $0
Calculation: $3,000 + $500 + $650 - $0
Result: $4,150
Total Lease Payments
Monthly Payment ร Number of Months
Calculation: $350 ร 36
Result: $12,600
Excess Mileage Cost
Expected mileage over lease term: 36,000 miles
Calculation: No excess mileage
Result: $0
Total Lease Cost
Sum of all lease-related costs
Calculation: $4,150 + $12,600 + $0 + $4,320 - $500
Result: $20,570
Purchase Cost Calculation
Calculating total purchase costs including loan payments and resale value
Sales Tax
Purchase Price ร Sales Tax Rate
Calculation: $35,000 ร 7.50%
Result: $2,625
Loan Amount
Total Purchase Price - Down Payment
Calculation: $38,125 - $3,000
Result: $35,125
Monthly Loan Payment
Using standard amortization formula
Calculation: Principal: $35,125, Rate: 5.50%/12, Term: 36 months
Result: $1,061
Total Interest Paid
Total payments minus principal
Calculation: $38,183 - $35,125
Result: $3,058
Total Purchase Cost
Net cost after considering resale value
Calculation: $3,000 + $38,183 + $500 + $4,320 - $21,000
Result: $25,003
Monthly Cost Comparison
Average monthly cost for each option
Calculation: Lease: $20,570 / 36 = $571 | Buy: $25,003 / 36 = $695
Result: Lease: $571 | Buy: $695
Net Present Value Comparison
Using 5% annual discount rate
Calculation: Lease NPV: -$19,403 | Buy NPV: -$27,512
Result: Lease: -$19,403 | Buy: -$27,512
Break-Even Analysis
Month where purchase becomes more cost-effective than lease
Calculation: No break-even point within lease term
Result: Beyond lease term
Opportunity Cost of Down Payment
Assuming 7% annual return if invested instead
Calculation: $3,000 ร [(1 + 7%)^3.00 - 1]
Result: $675
Cost Per Mile Analysis
Total miles driven: 36,000
Calculation: Lease: $20,570 / 36,000 = $1/mile | Buy: $25,003 / 36,000 = $1/mile
Result: Lease: $1/mile | Buy: $1/mile
For educational purposes only โ not financial advice. Consult a qualified advisor before making decisions.
๐ก Money Facts
Lease payments cover depreciation, not the full car value. You're paying for the car's decline during the term.
Excess mileage fees of $0.25/mile add $2,500 for 10,000 extra miles at lease end.
NPV discounts future cash flows so you can compare lease and buy fairly.
Buying usually wins for 15,000+ miles/year or 6+ year ownership; leasing for low miles and frequent upgrades.
๐ Key Takeaways
- โข Total cost of ownership includes upfront costs, monthly payments, insurance, fees, and end-of-term valuesโcompare both options over the same term.
- โข Leasing typically offers lower monthly payments but no equity; you pay for depreciation. Buying builds equity and often wins long-term if you keep the vehicle 5+ years.
- โข Net Present Value (NPV) accounts for the time value of moneyโfuture dollars are worth less today. Use it to compare lease vs buy on equal footing.
- โข Break-even month shows when buying becomes more cost-effective than leasing; high mileage and long ownership favor buying.
๐ก Did You Know?
๐ How Lease vs Buy Works
Leasing is essentially renting a vehicle for a fixed period (typically 24โ48 months). You pay for depreciation during the lease term plus finance charges. Monthly payments are lower because you only finance the depreciation, not the full vehicle value. At lease end, you return the vehicle or buy it at the residual value.
Buying means you own the vehicle after completing loan payments. You build equity and can sell anytime. You pay the full purchase price plus interest over the loan term, minus resale value at the end.
Lease Cost Components
Upfront: Down payment + security deposit + acquisition/disposition fees โ rebates. Monthly: Lease payment + insurance. End: Excess mileage fees โ security deposit return.
Purchase Cost Components
Upfront: Down payment + sales tax + registration. Monthly: Loan payment + insurance. End: Resale value (credit). Total cost = sum of all โ resale value.
NPV & Break-Even
NPV discounts future cash flows to today's dollars. Break-even finds the month when cumulative purchase costs fall below cumulative lease costs.
๐ฏ Expert Tips
๐ข Negotiate the Cap Cost
Lease payments are based on capitalized cost (selling price). Negotiate this like a purchaseโit directly lowers your monthly payment.
๐ฃ Know Your Mileage
If you drive over 15,000 miles/year, buying often wins. Pre-purchase extra miles on a lease if neededโusually cheaper than paying at end.
๐ Compare APR to Money Factor
Money factor ร 2,400 โ APR. A lease at 0.00208 is roughly 5% APR. Compare to loan rates to see true financing cost.
๐ต Consider Opportunity Cost
A large down payment could earn 5โ7% if invested. Factor that into the true cost of buying vs leasing.
โ๏ธ This Calculator vs. Alternatives
| Feature | This Calculator | Simple Lease Calc | Manual Spreadsheet |
|---|---|---|---|
| Total Cost Comparison | โ Lease + Buy side-by-side | โ ๏ธ Lease only | โ ๏ธ Manual entry |
| NPV Analysis | โ Time value of money | โ Rarely included | โ ๏ธ Formula required |
| Break-Even Month | โ Automatic | โ Not included | โ ๏ธ Manual calc |
| Excess Mileage & Insurance | โ Full inclusion | โ ๏ธ Varies | โ ๏ธ Manual entry |
โ Frequently Asked Questions
Is it cheaper to lease or buy a car?
It depends on your situation. Leasing often has lower monthly payments but no equity. Buying usually wins if you keep the vehicle 5+ years and drive many miles. Use this calculator to compare total costs.
What is a money factor on a lease?
The money factor is the lease equivalent of an interest rate. Multiply by 2,400 to approximate APR. Example: 0.00208 ร 2,400 โ 5% APR.
Can I negotiate a lease?
Yes. Negotiate the capitalized cost (selling price), money factor, and residual value. Also compare multiple dealers and consider manufacturer incentives.
What happens at the end of a lease?
You can return the vehicle, buy it at the residual value, or lease a new vehicle. Excess wear and mileage fees may apply if you return it.
Should I put money down on a lease?
Generally no. A large down payment doesn't build equityโyou're just pre-paying. If the car is totaled, you may not get it back. Consider $0 down or minimal.
How does excess mileage work?
Most leases include 10,000โ15,000 miles/year. Over that, you pay per mile (often $0.15โ$0.30). Pre-purchasing extra miles is usually cheaper.
When does buying make more sense?
When you drive 15,000+ miles/year, plan to keep the vehicle 5+ years, want to build equity, or prefer no mileage restrictions.
When does leasing make more sense?
When you want lower payments, like driving new cars every 2โ3 years, stay within mileage limits, or have business tax deductions.
๐ Lease vs Buy by the Numbers
๐ Official Sources
โ ๏ธ Disclaimer: This calculator provides estimates only. Actual lease and purchase terms vary by dealer, credit score, and market conditions. Residual values and money factors are estimates. Always review actual contracts carefully and consider consulting a financial advisor for major decisions.
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