Lease vs Buy Car Calculator
Compare net buy cost versus total lease cost using a consistent horizon. The core model is: buy net cost = down payment + payments made during horizon + remaining loan balance + operating costs - resale value, and lease total cost = taxed lease payments + down payment + end fees + operating costs across required lease cycles. This framing helps you compare short-horizon flexibility and long-horizon ownership economics under one consistent assumption set.
Lease vs Buy Inputs
Use matched assumptions across both options to compare true total cost.
Scenario Presets
Recommendation
Buying is Lower Cost
$8,406 (16.18%) over 60 months.
Buying is lower by $140 per month
Cost Breakdown
Buy Option
Lease Option
Interpretation Snapshot
Total cost delta (buy - lease)
-$8,406
Monthly cost delta
-$140
Decision confidence
Strong cost separation
How to use this output
- Stress-test resale value and lease-end fees to evaluate downside scenarios.
- Check mileage policy and overage terms before relying on lease savings.
- Re-run this comparison with your real contract quote before signing.
Current setup implies about 2 lease cycle(s) over 60 months.
Editorial & Review Information
Reviewed on: 2026-03-01
Published on: 2025-10-31
Author: LumoCalculator Editorial Team
What we checked: We re-checked loan-payment math, lease-cycle counting, mileage and end-fee assumptions, resale-value treatment, and source reliability.
Purpose and scope: This page supports educational planning for vehicle financing decisions. It is not a lender quote, legal interpretation, or tax filing instruction.
How to use this review: Run base, optimistic, and conservative scenarios. Stress test mileage, residual value, and end-fee assumptions before making a contract decision.
Financial Disclaimer
Results are scenario estimates based on your assumptions. Real outcomes depend on contract terms, state tax rules, credit profile, market resale conditions, mileage behavior, and dealer-specific fees. Use this tool for planning, then verify terms with the actual lease or loan agreement before committing.
Use Scenarios
Short horizon replacement planning
If you replace vehicles every 2-4 years, compare lower lease payments against repeated down payments and end fees to avoid underestimating total cycle cost.
Long hold cost control
If you keep vehicles 6-10 years, evaluate when loan payoff and residual value start to dominate the decision and push buying ahead on net cost.
Budget risk stress test
Compare monthly burden and total exposure under high-mileage or fee-heavy assumptions to see which option is more robust to real-world usage variance.
Formula Explanation
Buying monthly loan payment
M = P x [r x (1 + r)^n] / [(1 + r)^n - 1]
Where P is loan principal, r is monthly interest rate, and n is loan months. This is the standard amortization formula.
Total buy net cost
Buy Net Cost = Down Payment + Payments in Horizon + Remaining Loan Balance + Operating Costs - Resale Value
If the comparison horizon is shorter than loan term, remaining loan balance is included before resale recovery.
Total lease cost over comparison period
Lease Total Cost = Lease Cycles x (Lease Payment x (1 + Lease Tax Rate) x Term + Down Payment + End Fees) + Operating Costs
Lease cycles are rounded up to cover the full horizon, so partial remaining periods still carry a practical cycle cost.
Decision signal
Savings Amount = Buy Net Cost - Lease Total Cost
Negative savings amount indicates buying is cheaper. Positive savings amount indicates leasing is cheaper for the selected assumptions and timeline.
Example Cases
Case 1: Mid-size sedan, 36-month horizon
Inputs
- Vehicle price: $34,000
- Buy: 10% down, 60 months, 6.2% APR
- Lease: $2,500 down, $389/month, 36 months, $600 end fees
- Annual costs: insurance $1,650, maintenance $850 buy / $500 lease, fuel $2,100
- Resale at month 36: $21,000
Computed Results
- Buy net cost: about $28,400
- Lease total cost: about $26,100
- Difference: lease lower by about $2,300 (about 8.1%)
- Average monthly cost: buy about $789 vs lease about $725
Interpretation
For a short 3-year horizon, lower lease payment and delayed depreciation risk can outweigh ownership benefits.
Decision Hint
If annual mileage is stable and below allowance, leasing can be financially consistent for this short horizon profile.
Case 2: Same car, 72-month horizon
Inputs
- Vehicle price: $34,000
- Buy: same loan setup as case 1
- Lease: two consecutive 36-month leases, same terms
- Annual costs: insurance $1,650 both, maintenance $1,050 buy / $600 lease, fuel $2,100
- Resale at month 72: $13,000
Computed Results
- Buy net cost: about $45,900
- Lease total cost: about $52,600
- Difference: buying lower by about $6,700 (about 12.7%)
- Average monthly cost: buy about $638 vs lease about $731
Interpretation
With longer ownership, loan payoff and retained resale value tend to reverse the short-horizon lease advantage.
Decision Hint
If your lifestyle supports keeping the same vehicle beyond payoff, buying often provides stronger cost control.
Case 3: High-mileage usage stress test
Inputs
- Vehicle price: $30,000
- Buy: $4,000 down, 60 months, 6.5% APR
- Lease: $2,000 down, $360/month, 36 months, $500 end fees
- Mileage behavior: 6,000 miles over allowance, overage assumed $0.25 per mile
- Comparison period: 60 months
Computed Results
- Base lease total cost (no overage): about $35,400
- Mileage overage adjustment: about $1,500
- Adjusted lease total cost: about $36,900
- Buy net cost estimate: about $34,600
Interpretation
Mileage penalties can erase the apparent lease savings and shift decision economics.
Decision Hint
If your commute pattern is uncertain or consistently high mileage, run conservative overage assumptions before choosing lease.
Boundary Conditions
Sources & References
- Consumer Financial Protection Bureau (CFPB) - Auto Loans - Regulatory consumer guidance for auto financing terms, shopping process, and borrower protections. (Tier 1)
- IRS Publication 463 - Travel, Gift, and Car Expenses - Official U.S. tax reference used for business-use vehicle cost and deduction context. (Tier 1)
- Federal Reserve - Consumers and Communities - Public finance education context for household borrowing risk and budget resilience framing. (Tier 1)
- Bankrate - Lease vs Buy Calculator - Comparator methodology and assumption pattern reference for scenario design and sensitivity checks. (Tier 3 supplementary)