Lease vs Buy Calculator
Compare the true total cost of leasing versus buying a car, truck, or equipment with break-even analysis, opportunity cost, and equity tracking.
Lease vs Buy: Which Option Saves You More?
Deciding whether to lease or buy a car, truck, or piece of equipment is one of the most common financial dilemmas consumers and business owners face. Both options come with distinct cash flow profiles, upfront commitments, and long-term equity implications. This Lease vs Buy Calculator helps you make an informed decision by comparing the true total cost of each option over your chosen analysis horizon.
Unlike simple monthly payment comparisons, this tool accounts for all the factors that matter: upfront payments (down payment vs. due at signing), monthly obligations, end-of-term fees (disposition fee, remaining loan balance), expected resale equity, and the opportunity cost of tying up your capital. The result is a clear, apples-to-apples comparison that reveals which path actually costs less.
How the Lease vs Buy Comparison Works
The calculator models two parallel cash-flow scenarios. On the lease side, it sums the upfront costs (acquisition fee, first payment, security deposit), all monthly payments over the lease term, and the disposition fee charged when you return the vehicle. On the buy side, it calculates the loan amortization using your APR and term, tracks the remaining balance at any point, and subtracts the expected resale value as equity you recover.
A key feature of this tool is the break-even analysis. Because leasing typically has lower monthly payments but never builds equity, and buying has higher payments but eventually yields ownership, there is a month where the cumulative cost curves cross. Our calculator finds that exact break-even point and shows you the full monthly progression so you can see how the costs evolve over time.
Understanding the Key Inputs
To get the most accurate comparison, you need good estimates for each input. Here is what each parameter means and why it matters:
- Asset Price - The negotiated purchase price (or capitalized cost) of the vehicle or equipment. This is the starting point for both lease and buy calculations.
- Analysis Horizon - The number of months you plan to keep the asset. For a fair comparison, both options must be evaluated over the same time period. A typical horizon is 60 months (5 years).
- Lease Terms - Your monthly lease payment, lease duration (typically 24-48 months), upfront amount due at signing, acquisition fee (often $650-895), disposition fee ($350-500 when you return the car), annual mileage allowance, and per-mile overage fee.
- Buy Terms - Down payment, annual percentage rate (APR) on your auto loan, loan term (often 48-72 months), expected resale value at the end of your analysis period, and the opportunity cost rate you could earn on the money you save with the cheaper option.
- Opportunity Cost Rate - If your lease payment is lower than your buy payment, the difference can be invested and earn returns. This rate captures what you might earn in a savings account, money market fund, or other low-risk investment.
Three Common Scenarios
To help you get started, we have included three preset scenarios that represent typical lease vs buy decisions:
Economy Car ($25,000)
A compact sedan with a 36-month lease at $320/month versus a 60-month loan at 5.9% APR. The economy car example shows how buying over a longer term can result in significantly lower monthly payments, while leasing offers the advantage of lower upfront costs and a shorter commitment.
Luxury Sedan ($55,000)
A premium vehicle with a 36-month lease at $650/month versus a 60-month loan at 4.5% APR. Luxury vehicles often have higher depreciation rates, which can make leasing more attractive since you are only paying for the depreciation during the lease term rather than absorbing the full depreciation curve.
Pickup Truck ($45,000)
A work truck with a longer 48-month lease at $550/month versus a 72-month loan at 6.5% APR. Pickup trucks tend to hold their value better than sedans, which can tilt the analysis in favor of buying -- especially if you plan to keep the truck beyond the loan term.
Tips for Making the Right Decision
Beyond the numbers, consider these qualitative factors when deciding between leasing and buying:
- Driving habits - If you drive more than 12,000-15,000 miles per year, leasing becomes expensive due to mileage overage fees. Buying is usually better for high-mileage drivers.
- Vehicle condition preferences - Leasing lets you drive a new car every 2-3 years with full warranty coverage. Buying means you keep the car as it ages and accrues maintenance costs.
- Customization - If you plan to modify the vehicle (wheels, suspension, accessories), buying is the only option since leased vehicles must be returned in stock condition.
- Business use - Lease payments may be tax-deductible as a business expense. Consult your tax advisor to understand the implications for your situation.
- Cash flow - If preserving monthly cash flow is your priority, leasing usually wins because lease payments are almost always lower than loan payments on the same vehicle.
Frequently Asked Questions
Frequently Asked Questions
Is it better to lease or buy a car financially?
The answer depends on your specific situation. Buying is generally cheaper over the long term if you keep the car for several years after the loan is paid off, because you benefit from years of depreciation-free ownership. Leasing can be cheaper if you only keep the car for 2-3 years and trade it regularly, since you only pay for the depreciation during those years rather than the full purchase price. This calculator shows you the exact numerical comparison for your specific inputs.
What is a good lease money factor?
The money factor is the lease equivalent of an interest rate. To convert money factor to APR, multiply by 2400. A good money factor for a well-qualified buyer is typically 0.00150 or lower (equivalent to 3.6% APR). Anything below 0.00100 (2.4% APR) is excellent. You can negotiate the money factor just like you negotiate the interest rate on a loan.
What happens if I exceed my lease mileage allowance?
Most leases charge a per-mile fee for every mile driven above the agreed allowance. Typical overage fees range from $0.10 to $0.35 per mile. If you know you will exceed the allowance, you can often purchase additional miles upfront at a discount (usually $0.10-0.15 each) rather than paying the penalty at lease end. The calculator includes this cost so you can see its impact on your total lease expense.
Can I negotiate lease terms?
Yes, essentially all lease terms are negotiable. You can negotiate the selling price of the vehicle (capitalized cost), the money factor, the acquisition fee, the mileage allowance, and the disposition fee. Many dealers mark up the acquisition fee from the bank's base rate. The residual value is typically set by the bank and is less negotiable, but some manufacturers offer special residual programs that can lower your payment.
What is opportunity cost in lease vs buy analysis?
Opportunity cost represents the investment returns you could earn on the money you save by choosing one option over the other. For example, if your lease payment is $200 less than your loan payment each month, you could invest that $200 difference and earn compound interest over the analysis period. The opportunity cost rate (typically 3-6% for low-risk investments) accounts for this factor and provides a more complete comparison.
How does the break-even analysis work?
The break-even month is the point in time when the cumulative cost of buying becomes less than the cumulative cost of leasing. Early in the comparison, the buy option typically costs more because of the down payment and higher monthly payments. Over time, as the lease payments continue without building equity, the cumulative lease cost may surpass the buy cost. The break-even point is when these two cumulative cost curves cross.
Should I use this calculator for business equipment leasing?
Yes, this calculator works for any asset that can be leased or purchased, including business equipment, machinery, and vehicles. For business decisions, you may want to consider additional factors such as tax treatment of lease payments versus depreciation deductions, Section 179 expensing, and the impact on your balance sheet. The calculator provides the baseline financial comparison that you can then adjust for your specific tax situation.