Refinance Break-Even Calculator
Should you refinance? Calculate your break-even point, interest savings, and net benefit.
Current Mortgage
New Mortgage & Costs
Monthly Payment Reduction
$343
$2,834/mo new vs $3,177/mo current
Break-Even Analysis
Estimates only. New payment keeps your remaining amortization; savings compare interest paid over the new term at each rate (semi-annual compounding). Confirm your actual penalty with your lender.
Refinancing Looks Worthwhile
You'd recover your costs in 20 months and save $19,668 net over the new term.
When Does Refinancing Make Sense?
Refinancing your mortgage means replacing your existing loan with a new one — typically at a lower interest rate or with different terms. While the prospect of a lower monthly payment is appealing, refinancing comes with upfront costs that must be weighed against the potential savings. The break-even point is the critical metric: it tells you how many months of reduced payments it takes to recover what you spent to refinance.
Understanding Refinance Penalties
The biggest barrier to mid-term refinancing is the penalty your current lender charges. For variable-rate mortgages, this is typically the equivalent of three months of interest. For fixed-rate mortgages, lenders use the Interest Rate Differential (IRD), which compares your contract rate to their current rate for a similar term. The IRD can be significantly more expensive — sometimes $15,000 to $25,000 on larger mortgages.
Always request a written penalty quote from your current lender before committing to a refinance. Federally regulated lenders must disclose how their prepayment charge is calculated and provide a way to estimate it. Some penalties are negotiable, especially if you have a strong payment history and are willing to escalate to a retention specialist.
Common Refinancing Mistakes
- Ignoring the break-even calculation — Refinancing $10,000 in costs to save $80/month means you need 125 months (over 10 years) just to break even.
- Rolling costs into the new mortgage — This increases your principal and erodes savings. Pay costs in cash whenever possible.
- Extending the amortization — Lower payments from a longer amortization feel good but cost more in total interest.
- Not shopping multiple lenders — Rate differences of 0.15% to 0.30% between lenders translate to thousands in savings over a term.
- Refinancing too close to renewal — If you are within 6 months of renewal, the penalty savings of waiting often outweigh refinancing immediately.
How to Minimize Break-Even Time
The fastest path to break-even is to minimize costs and maximize monthly savings. Negotiate legal fees (typical range $1,200 to $2,000), ask your new lender about appraisal waivers or credits, and consider a slightly shorter new term — a 3-year fixed at a competitive rate can sometimes save more than a 5-year term when rate differentials are large. The key is to compare the total cost of each scenario, not just the monthly payment.
With 18+ years of combined experience and over $2 billion in funded mortgages, Kraft Mortgages has helped thousands of homeowners evaluate refinancing decisions. We compare offers from 40+ lenders to find the best rate and terms for your specific situation.