7 Easy Ways to Calculate Your New Car Budget

By Andrea Cannon on 26 August 2015 0 comments

So you're looking for a new car? Congrats! If you're in the market for a new vehicle, you should first determine what you can actually afford. And if you're considering leasing or financing a vehicle, you should understand the total costs involved. That's because the total amount you can spend = the approved loan amount + cash down payment + trade-in amount. Consider the following factors when calculating your new car budget.

1. Total Price

The total cost of your vehicle is more than just the sticker price; it will also include things like the sales tax, title and registration fees, and optional items, like extended warranties. Keep these in mind and leave yourself some wiggle room with your budget when shopping for a new vehicle. Remember that you will also need to worry about auto insurance, gas, regular maintenance, repairs, registration, and other costs associated with owning a car.

2. Monthly Payments

If you will be financing or leasing a vehicle, then you'll need to calculate your ideal monthly payments. Keep in mind that your monthly payment will include both principal and interest. The loan term, interest rate, and down payment will all affect your monthly payment. If you can wait to make your purchase until interest rates are lower, then you can afford a more expensive vehicle or save money on your payments.

3. Down Payment

Most vehicle purchases are made with a down payment. The more you can devote to your down payment, the lower your monthly bill will be.

4. Trading In Your Old Car

Have you considered trading-in your old car? It will help reduce the total cost of the new vehicle and can improve your loan terms. Trading in your vehicle may also give you more pull when you are attempting new car negotiations. (See also: The Joy of Buying a New Car: 9 Car Buying Tips)

5. The 10%–20% Rule

For drivers who want to be frugal with their purchase, you'll want to devote about 10% of your income towards your vehicle. This means that if you make $3,000 per month, you'll want to devote $300 per month towards monthly payments for all of your vehicles. (Most people spend about 20% of their income on their transportation, so this may be a more realistic estimate.)

If you're not planning on financing your new car, then the 10%-20% rule still applies. You'll want to take 20% of your annual income to determine what you can afford to spend on a vehicle. For instance, at $36,000/year, you'll be able to spend $7,200 yearly on your vehicle ($36,000 x .20 = $7,200).

6. Your Total Debt

If you currently have a lot of debt and don't want to add too much onto your load, then there is a simple 36% rule to follow. Consumer Reports found that it is best to spend no more than 36% of your gross monthly income on debt. Itemize what all of your monthly debt payments are, including mortgage, credit cards, and loans. Once you've totaled those, subtract them from 36% of your income to determine how much you can realistically add. For instance, if your income is $3,000 per month and you already spend $800 per month on credit card and loan payments, you can only afford a new monthly auto loan payment of $280, calculated as ($3,000 x .36) – $800 = $280.00.

7. Affordability Calculators

Every person's situation is different, so only you can determine what your budget is and what you are willing and able to spend on a new car. Fortunately, there are a number of free affordability calculators available online that can help you calculate your ideal price range. They can even account for things like your loan term, finance rate, down payment, and the value of your trade-in (if you have one). An auto loan calculator can also help you find the ideal total price, based on how much you can afford to spend every month.

Do you have other ways of determining how much you should spend on transportation? Please share your thoughts in the comments!

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