Mortgage Refinance Calculator
Calculate your potential savings from refinancing with our free tool. See if now is the right time to refinance.
What Mortgage Refinance Calculator does
A mortgage refinance calculator that models how changing interest rates, loan terms, and closing costs affect monthly payments and total interest paid over the life of a loan. Users input current balance, current rate, remaining years, new rate, new term, and closing costs to see estimated new payments, lifetime savings, and a break-even month — the point when refinancing costs are recouped by monthly savings. The interface includes explanatory text about refinance decision points, such as break-even analysis, closing costs, mortgage points, and prepayment penalties, presented in a structured format that walks the user through the math before they commit to a loan officer. Compared to other refinance calculators, this site’s version stands out by pairing the numeric output with a concise, six-section explanation of the refinance decision framework, including a checklist and real-world scenario examples that guide the user through the trade-offs rather than presenting only a final number.
How to use the Financial Toolset Mortgage Refinance Calculator
- 1
Enter your current mortgage balance in the 'Current Balance' field
- 2
Input your current interest rate and remaining years on the loan
- 3
Enter the new interest rate and new term you are considering
- 4
Input the closing costs associated with the refinance
- 5
Review the calculated new monthly payment, lifetime savings, and break-even month displayed in the results area
Best for
Homeowners with existing mortgages who are considering a rate reduction or term change and want to quantify the break-even point and total savings before paying closing costs.
Limitations
- Results are estimates based on user-input values and do not include all lender-specific fees or qualification requirements
- Does not account for prepayment penalties on the existing loan or tax implications of refinancing
- Requires the user to know or approximate closing costs and the new rate/term to generate meaningful output
Mortgage Refinance Calculator FAQ
- Can I use this calculator if I don't know my exact closing costs yet?
- Yes — you can enter an estimated closing cost amount to see how it affects your break-even month and total savings, then adjust the figure as you receive official loan estimates from lenders.
- What does the break-even month mean, and how is it calculated?
- The break-even month is the number of months it takes for your monthly payment savings to equal the closing costs you paid. It is calculated by dividing the total closing costs by the difference between your current and new monthly payments.
- Does this tool compare rate-and-term refinancing with cash-out refinancing?
- The calculator focuses on rate-and-term scenarios where you input a new interest rate and new term; it does not model cash-out refinancing, which involves borrowing against home equity.
- Is the lifetime savings figure accurate for my specific loan?
- The lifetime savings estimate is based on the input terms and assumes the new loan runs for the full new term without refinancing again; actual savings may vary based on your payment schedule and any future rate changes.
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