Calculate your monthly car payment including taxes, trade-in, and down payment
Works out the monthly payment, total interest, and total cost of a vehicle loan from the amount financed, rate, and term. Trade-in value and any down payment reduce the amount financed before the payment is computed.
Payment = P × r(1+r)^n / ((1+r)^n − 1), where P = Price + Fees − Down payment − Trade-in
Pamount financed after down payment and trade-inrmonthly rate (APR ÷ 12)nloan term in months3-4 years is ideal. 5 years is common but means paying more interest. 6-7 year loans cause widespread negative equity. You end up owing more than the car is worth because cars depreciate faster than long loans pay down.
A common rule: total transportation costs (payment, fuel, insurance, maintenance) should stay under 15% of take-home pay, and payment alone should be under 10%. Price under 1/2 of annual income.
Yes. 20% down is the target. It offsets new-car depreciation, reduces monthly payment, and prevents the "upside-down" loan situation where you owe more than the car is worth.