A widely used budgeting guideline suggests keeping your car payment under roughly 10-15% of your monthly take-home pay, with total transportation costs — including insurance, fuel, and maintenance — staying under 20%. These percentages aren’t hard rules, but they’re a useful starting point for avoiding a payment that quietly strains your budget every month. Once you have a target percentage in mind, you can work out the corresponding vehicle price using our car payment calculator, which factors in tax, term, and down payment together.
If the payment that fits your income feels lower than what you were hoping to spend, there are a few ways to close the gap without overextending yourself — see our tips in how to lower your monthly car payment. It’s also worth checking how a larger down payment shifts the math, covered in down payment vs. monthly payment, since sometimes a modest increase upfront makes a noticeably more comfortable monthly number.