Car Lease vs Buy Calculator
Compare the total cost of leasing versus buying a car over your ownership period.
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Lease vs Buy a Car: Which Is Right for You?
Deciding whether to lease or buy a car is one of the biggest financial decisions drivers face. Both options have advantages and drawbacks, and the best choice depends on your driving habits, financial goals, and how long you plan to keep the vehicle. This calculator helps you compare the true total cost of leasing versus buying over your actual ownership timeline.
How Car Leasing Works
When you lease a car, you're essentially paying for the vehicle's depreciation during the lease term plus a financing charge (the money factor). Your monthly lease payment is based on the difference between the car's negotiated price (capitalized cost) and its predicted value at lease end (residual value), divided by the number of months, plus a monthly finance charge.
The lease payment formula is: Monthly Payment = Depreciation Fee + Finance Fee, where the depreciation fee equals (Net Cap Cost - Residual Value) / Lease Term, and the finance fee equals (Net Cap Cost + Residual Value) x Money Factor. Sales tax is applied on top of the monthly payment in most states.
How Buying (Financing) Works
When you buy a car with financing, you take out a loan for the purchase price minus your down payment. You make monthly payments over the loan term (typically 48 to 72 months) that include both principal and interest. Once the loan is paid off, you own the car outright and can drive it payment-free for as long as you keep it. The key advantage of buying is that you build equity — the car retains some value that you can recoup when you sell or trade it in.
Hidden Costs to Consider
When comparing lease vs buy, several hidden costs can tip the balance:
- Lease fees: Acquisition fees ($500-$1,000), disposition fees ($300-$500), excess mileage charges ($0.15-$0.30 per mile), and wear-and-tear penalties can add thousands to the cost of a lease.
- Maintenance after warranty: If you buy and keep the car past the warranty period (typically 3 years / 36,000 miles), you'll pay for all repairs out of pocket. Leased cars are usually covered by warranty for the entire lease term.
- Gap insurance: Recommended for leases, this covers the difference between what you owe and the car's value if it's totaled. Some leases include it; others charge extra.
- Opportunity cost: A larger down payment on a purchase means less money available for other investments. Consider whether that capital could earn more in the stock market.
- Tax deductions: If you use the car for business, lease payments may be fully deductible, while purchased vehicles must be depreciated over time.
When Buying Wins
Buying almost always wins financially if you plan to keep the car for 5 years or more. Once the loan is paid off, you enjoy years of payment-free driving while the car still has value. The longer you keep a purchased car, the lower your effective cost per month becomes. If you drive more than 12,000-15,000 miles per year, buying also avoids the mileage penalties that make leasing expensive for high-mileage drivers.
When Leasing Wins
Leasing can make financial sense if you prefer to drive a new car every 2-3 years and value always being under warranty. Monthly payments are typically 20-40% lower than a loan payment for the same car, which can free up cash for other goals. Leasing also makes sense for business use where you can deduct the full lease payment, and for people who want to minimize their upfront cash outlay.
The Break-Even Point
For most vehicles, the break-even point where buying becomes cheaper than serial leasing is around 4-5 years. This calculator factors in multiple consecutive leases if your ownership period exceeds the lease term, giving you a true apples-to-apples comparison. The key insight is that buying front-loads cost (higher monthly payments during the loan) but back-loads savings (payment-free ownership after the loan), while leasing spreads cost evenly but never stops.