Reduce Closing Costs
Break-even sooner3 months
Net savings increase+$1,000
Mortgage decision tool
Refinance Decision Calculator
Compare your current mortgage with a refinance offer, estimate the break-even point, and decide whether a lender conversation is worth taking further.
Your refinance inputs
Enter your current loan and refinance offer details. Results update as you type.
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Current Mortgage
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Refinance Offer
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Your Plan
Mortgage changes include selling, refinancing again, or paying off early.
Improve Your Offer
Small improvements can create big savings. Use these numbers when negotiating with your lender or broker.
Lower Interest Rate
Additional monthly savings+$82
Additional total savings+$29,074
Investment Opportunity
Assume you invest the monthly payment savings instead of spending them.
Monthly Savings to Invest$425
Equivalent Monthly Return0.57%
Investment Period27 years
Future Investment Value$391,565
Total Investment Growth$253,985
Investment-adjusted Break-even1y 3m
Common Questions
Is a $0 Closing Cost Refinance Always Worth It?
Not always. A lender may cover closing costs by offering a higher rate. Compare the monthly payment, rate, and how long you expect to keep the loan.
How Much Lower Should My New Interest Rate Be?
There is no universal rule. The right threshold depends on closing costs, loan size, remaining term, and whether you will keep the mortgage long enough to pass break-even.
Bit Crossing provides practical estimates to help you understand your options and decide whether the next step may be worth taking. Results are based on the assumptions you provide and simplified financial models. They are not tax, legal, investment, or financial advice. For decisions with significant financial impact or complex situations, consult a qualified CPA, financial advisor, plan administrator, or other appropriate professional. This calculator uses a simplified fixed-rate mortgage model and does not include taxes, insurance, PMI, escrow changes, or lender-specific fees beyond the closing cost you enter.