Should you refinance?
Refinancing replaces your loan with a new one, ideally at a lower rate. Enter what you owe, the years left, your current rate, the new rate and term, and the closing costs. The example refinances $300,000 with 25 years left from 7% to 6% on a new 25-year loan. The payment drops from $2,120.34 to $1,932.90, a saving of $187.43 a month.
The key number is the break-even point. Closing costs are paid up front, and the monthly savings pay them back over time. Here, $6,000 in costs divided by $187.43 a month takes 33 months to recover. If you sell or refinance again before then, you lose money. If you stay for the full 25 years, you save about $50,230.
Watch the term. A lower payment can come from stretching the loan rather than from a lower rate. Refinancing the same $300,000 into a new 30-year loan at 6% cuts the payment to $1,798.65, a saving of $321.69 a month. But you'd make five more years of payments, and the total cost rises by about $17,413. The calculator shows both the monthly and the lifetime result, so you can see when a lower payment costs more.
A shorter term works the other way. Moving to a 15-year loan at 5.5% raises the payment to $2,451.25, but it saves about $188,876 over the life of the loan. Compare offers on the rate, the term and every fee, and ask lenders for a Loan Estimate, which uses a standard format that makes them easy to compare.