Mortgage Refinance Calculator: Break-Even Point & Savings
A lower monthly payment doesn’t always mean a refinance is worth it. This mortgage refinance calculator with closing costs shows your true break-even point, compares total interest on your current loan against your new loan, and flags it if a longer term quietly costs you more over the life of the loan, even while your payment drops.
Skip straight to the calculator ↓Your Current Mortgage
Your Refinance Terms
Your Refinance Results
Cumulative interest paid: keep current loan vs. refinance
Enter your current and refinance details above to see a plain-language read on whether this refinance is worth it.
Total Cost Comparison
This is the comparison most basic refinance calculators skip: a lower payment can still mean paying more overall if your new term resets the clock. Compare both loans side by side, including the upfront cost of refinancing.
| Loan | Payment | Payoff timeframe | Remaining interest | Total cost |
|---|
What If Your New Rate Changes?
| Rate scenario | Interest rate | New monthly P&I | Monthly savings vs. current |
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How Refinance Break-Even Actually Works
The break-even point is the number of months it takes for your monthly savings to fully offset what you paid in closing costs. If your closing costs are $6,000 and refinancing saves you $150 a month, you break even in 40 months, or a little over three years. If you plan to sell or refinance again before that point, this refinance probably isn’t worth it, no matter how attractive the new rate looks. This refinance break even calculator computes that number automatically the moment you enter your numbers above, and compares it against how long you told us you plan to stay in the home.
Why a Lower Payment Isn’t the Whole Story
Here’s the part most refinance calculators gloss over. If you’re 3 years into a 30-year loan and refinance into a new 30-year term, you’ve just reset your payoff clock by 3 years, even if your rate drops. Your monthly payment goes down, but you could easily pay more in total interest over the life of the loan than if you’d kept your original mortgage. The Total Cost Comparison table above accounts for this directly: it shows the real remaining interest on your current loan against the full interest on your new loan, not just the monthly numbers side by side.
Rate-and-Term vs. Cash-Out Refinancing
A rate-and-term refinance replaces your loan with a new one at a new rate and term, without changing your balance beyond rolled-in closing costs. A cash-out refinance replaces your loan with a larger one and gives you the difference in cash, which you can use for renovations, debt consolidation, or anything else, but it means owing more against your home and resetting the interest clock on a bigger balance. Toggle between the two above to see how a cash-out refinance calculator scenario changes your break-even point and new loan-to-value ratio.
How Refinancing Affects PMI
If your current loan still carries private mortgage insurance, refinancing into a new loan with a loan-to-value ratio under 80% can let you drop it entirely. On the other hand, a cash-out refinance that pushes your new balance back above 80% of your home’s value can reintroduce PMI you’d already gotten rid of. The New Loan-to-Value stat above updates live as you adjust your numbers, so you can see which side of that line you land on.
FHA Streamline and VA IRRRL Refinancing
If your current loan is FHA or VA-backed, you may qualify for a streamlined refinance program with less documentation and, in some cases, no new appraisal. FHA loans typically require at least six months of on-time payments before you can refinance. VA loans have a similar waiting period of roughly 210 days from your first payment before you’re eligible for a VA Interest Rate Reduction Refinance Loan (IRRRL). These streamlined programs are usually rate-and-term only; if you want cash out on an FHA or VA loan, you’ll typically need a standard cash-out refinance instead.
What Closing Costs Actually Cover
Refinance closing costs typically run 2% to 5% of the new loan amount and cover the lender’s origination fee, an appraisal, title search and insurance, recording fees, and often prepaid items like the first month of homeowners insurance held in escrow. Rolling these costs into your new loan avoids paying cash at signing, but it also means paying interest on that amount for the full term of your new loan, which is why the checkbox above changes both your break-even math and your total cost comparison.
Frequently Asked Questions
What is a mortgage refinance break-even point?
It’s the number of months it takes for your monthly payment savings to fully offset the closing costs you paid to refinance. After that point, every month of savings is money in your pocket rather than money recovering the upfront cost.
Should I refinance my mortgage?
Generally, refinancing makes sense if your break-even point is shorter than how long you plan to stay in the home, and if the total interest comparison shows a genuine long-term benefit rather than just a lower monthly number. If you plan to move or refinance again before your break-even point, it usually isn’t worth it.
What is a cash-out refinance?
A cash-out refinance replaces your mortgage with a new, larger loan and gives you the difference between your old balance and the new one in cash. It typically comes with a slightly higher rate than a rate-and-term refinance and increases both your balance and your loan-to-value ratio.
Can refinancing remove my PMI?
Yes, if your new loan-to-value ratio falls under 80% of your home’s current value, refinancing can eliminate private mortgage insurance. A cash-out refinance that pushes your balance back above 80% LTV can bring PMI back, even if you didn’t have it before.
How much does it cost to refinance a mortgage?
Typically 2% to 5% of the new loan amount, covering the origination fee, appraisal, title work, and recording fees. You can pay this in cash at closing or roll it into your new loan balance.
Is it better to refinance from a 30-year to a 15-year mortgage?
A 30 year to 15 year refinance calculator scenario typically raises your monthly payment but sharply cuts total interest and pays off your home years sooner. It’s a strong move if you can comfortably afford the higher payment and don’t need the extra monthly cash flow a longer term provides.
How long do I need to wait before refinancing an FHA or VA loan?
FHA loans generally require at least six months of on-time payments before you can refinance. VA loans require roughly 210 days from your first payment before you’re eligible for a VA IRRRL streamline refinance.
Does this calculator account for taxes and insurance?
No. This tool focuses specifically on the principal and interest portion of your payment and the refinance decision itself, since property tax and homeowners insurance generally don’t change from a refinance alone.
References
- Consumer Financial Protection Bureau, Owning a Home resources – consumerfinance.gov/owning-a-home
- U.S. Department of Housing and Urban Development, homebuying and refinancing guidance – hud.gov/topics/buying_a_home
Related DexoCalc Tools
This mortgage refinance calculator sits inside a wider set of financial planning tools on DexoCalc.
State Mortgage Calculators
Looking at a purchase instead of a refinance? These state calculators use real local property tax data:
This calculator provides estimates for educational purposes only and is not a loan offer, pre-approval, or substitute for advice from a licensed mortgage professional. Closing cost percentages, PMI thresholds, and FHA/VA waiting periods are general guidance and vary by lender and loan program; confirm exact figures with your lender before making a refinance decision.