Mortgage Refinance Break-Even Calculator
Loan Balance
Interest Rate (%)
Years Remaining
Current Payment: $2,363 /mo
New Interest Rate (%)
New Term (Years)
Closing Costs
The "FI" Opportunity
If you refinance and invest the $292 monthly savings instead of spending it, here is what your wealth could look like at the end of the new 30-year term (assuming 7% annual return).
$355,672
Assumed Investment Return
Should You Refinance?
Refinancing isn't just about a lower rate—it's about math. Use this tool to calculate your break-even horizon and discover the opportunity cost of your current mortgage.
Unique to this tool: We project how investing your monthly savings can accelerate your Financial Independence date.
How to Use This Calculator
Enter Current Loan Details
Input your remaining balance, current interest rate, and how many years are left on your mortgage. Check your latest monthly statement for accurate numbers.
Input New Loan Offer
Enter the rate, term (e.g., 15 or 30 years), and total closing costs from your Loan Estimate. We assume closing costs are rolled into the loan for a true 'cash flow' comparison.
Analyze the 'FI' Gap
The calculator shows your monthly savings. Adjust the 'Investment Return' slider to see how investing that difference could grow your net worth over the life of the new loan.
Refinancing for Wealth
Understand the mechanics behind the decision. It's not just about a lower monthly payment.
The Break-Even Point
The most critical metric. If you plan to move before you recoup your closing costs, refinancing is a guaranteed loss.
Refinance & Invest
The 'FI' secret: Don't just pocket the savings. Automate the difference into a brokerage account to supercharge your Net Worth.
The Term Reset
Warning: Resetting to a fresh 30-year term resets your amortization clock. You pay more interest upfront again.
Closing Costs
Rolling costs into the loan reduces cash-to-close but means you pay interest on those fees for decades.
Explore Other FI Concepts
Mortgage decisions are just one piece of the puzzle. See how housing fits into your wider plan.
Frequently Asked Questions
The break-even point is the time it takes for your monthly savings to outweigh the upfront costs of refinancing. For example, if you save $100/mo but pay $2,400 in closing costs, your break-even is 24 months. If you plan to move before then, refinancing loses money.
It depends. Extending your term (e.g., back to 30 years) usually lowers your payment drastically but increases total interest paid. However, if you diligently INVEST the monthly savings, the compound growth can often outperform the extra interest cost. Our calculator visualizes this opportunity cost.
The old rule of thumb was 'only refi if you drop 1%'. In today's market, even a 0.5% drop can make sense for large balances, or if it helps cash-flow a tight budget. Always run the specific numbers rather than relying on general rules.