Refinance Breakeven
Calculator

Your refinance breakeven point is the month in which the cumulative savings from your new, lower monthly payment (and any faster amortization) finally pays back the upfront closing costs of refinancing. Before that month, you are still behind relative to staying on the old loan. After that month, every dollar is net savings. The calculator above estimates this month using a month-by-month walk of both loans over the remaining term.

The calculator lets you enter your expected closing costs directly, since they vary by lender, loan size, and Pennsylvania county. As a rule of thumb, a no-closing-cost refi rolls the costs into a slightly higher rate, while a full closing-cost refi typically runs 2–5% of the loan amount ($6,400–$16,000 on a $320,000 balance). Loan origination, title, recording, and prepaid escrow items usually make up the bulk. Your lender is required to give you a Loan Estimate within three business days of application listing every line item.

If you shorten the term (say, 30 years to 15 years) as part of the refinance, your monthly payment may not drop — it may even rise — but you build equity much faster and pay dramatically less total interest. The breakeven math is different because the cumulative savings includes equity pulled forward from faster amortization, not just monthly payment savings. Refinancing into a shorter term while also getting a lower rate is one of the strongest financial moves a homeowner can make.

The traditional rule of thumb is that a rate drop of 0.75–1.00% is usually worth refinancing, after accounting for closing costs and how long you plan to stay in the home. In Lehigh Valley's mid-2026 environment, where rates sit in the low-6% range, a meaningful drop typically means moving into the low-5% range or below. Smaller rate drops can still pencil out if your closing costs are low, your remaining term is long, or you're also switching to a shorter term. Run your numbers with the calculator above to see the exact breakeven.

The calculator focuses on principal and interest, which are the only terms that change when you refinance. Property taxes, homeowner's insurance, and HOA dues typically stay the same before and after a refi, so they don't affect the breakeven calculation. PMI may drop or disappear after a refi if your new loan-to-value ratio falls below 80%, but that's a separate, one-time benefit. The breakeven is driven by P&I savings, because everything else is essentially constant month to month.