Most lenders suggest waiting six months after opening a loan because it gives an applicant time to rebuild their credit and stabilize their financial situation. In addition, the borrower can also enjoy a six-month history of paying their monthly loan on time. This, in turn, can increase the applicant’s chances of getting approved for a new loan.
Keep in mind that you need positive equity to refinance a car loan, as most lenders consider even highly qualified applicants a high risk if they have negative equity. Use your amortization schedule to find your break-even point or make a lump-sum payment to get to your break-even point.