Auto Loan CalculatorResources > Auto Loan Calculator
Lease Vs. Buy
Should you lease or buy your car? Use this calculator to find out! We calculate your monthly payments and your total net cost. By comparing these amounts, you can determine which is the better value for you.
Auto Loan Calculator Definitions
Total purchase price. Price should be after any manufacturer’s rebate.
Amount paid as a down payment, which for leases is often called a capital reduction.
Total amount of your loan.
Sales tax rate
Percentage sales tax to be charged on this purchase. Sales tax is included in each lease payment. Sales tax for buying is charged on the total sale amount.
Investment rate of return
Rate of return on investments. This is the return that you would make if you were to invest your down payment or security deposit instead of using it in your auto purchase or lease.
The actual rate of return is largely dependent on the types of investments you select. The Standard & Poor’s 500® (S&P 500®) for the 10 years ending December 31st 2018, had an annual compounded rate of return of 12.1%, including reinvestment of dividends. From January 1, 1970 to December 31st 2018, the average annual compounded rate of return for the S&P 500®, including reinvestment of dividends, was approximately 10.2% (source: www.standardandpoors.com). Since 1970, the highest 12-month return was 61% (June 1982 through June 1983). The lowest 12-month return was -43% (March 2008 to March 2009). Savings accounts at a financial institution may pay as little as 0.25% or less but carry significantly lower risk of loss of principal balances.
It is important to remember that these scenarios are hypothetical and that future rates of return can’t be predicted with certainty and that investments that pay higher rates of return are generally subject to higher risk and volatility. The actual rate of return on investments can vary widely over time, especially for long-term investments. This includes the potential loss of principal on your investment. It is not possible to invest directly in an index and the compounded rate of return noted above does not reflect sales charges and other fees that investment funds and/or investment companies may charge.
Loan term in months
Term in months for your auto loan. Typically this is 36, 48, 60 or 72 months. If your loan term is longer than your lease term, we compare the buy vs lease options to the time the lease expires, and then use your remaining loan term to calculate your outstanding loan balance.
Loan interest rate
Annual interest rate for your loan.
Any fee, other than a capital reduction or down payment, required to be paid at the time of
purchase. This may include license, title transfer fees, etc.
The rate of depreciation gauges how fast your new automobile will lose its market value. A high depreciation rate is about 20% per year, medium is 15% per year and low is 10% per year.
Market value of vehicle
Value of your auto after the lease term is over.
Net cost of buying
This is the total cost of buying your vehicle. This is calculated as:
1. + Total up front costs (down payment + other fees)
2. + Lost interest
3. + Outstanding loan balance at time lease expires
4. - Market value of vehicle at time lease expires
5. = Net cost of buying
The lost interest on your purchase includes any interest you would have earned at your investment rate of return on the buy option’s down payment and other fees. If the monthly payment for leasing is less than the monthly payment for buying, this also includes any lost interest due to the higher monthly payments. If leasing is more expensive than buying, your interest costs for buying are reduced by the amount of interest you would earn on the difference.
Information and interactive calculators are made available to you as self-help tools for your independent use and are not intended to provide investment advice. We cannot and do not guarantee their applicability or accuracy in regards to your individual circumstances. All examples are hypothetical and are for illustrative purposes. We encourage you to seek personalized advice from qualified professionals regarding all personal finance issues.