Florida Refinance Calculator

Plug in your current loan and a new rate. See your monthly savings, break-even point, and lifetime interest. Honest math, not a sales pitch – we tell you when refi doesn’t pencil.


Real Break-Even Math

See exactly how many months until your monthly savings cover closing costs. Below 36 months is generally green; over 60 months is generally not.

Lifetime Interest View

Compare what you’ll pay in interest on the new loan vs riding out your current loan to its end. Sometimes the monthly looks great but the lifetime math doesn’t.

Verdict, Not Just Numbers

Color-coded answer up top: strong refi, marginal, or doesn’t pencil. We’d rather you skip a refi that hurts you than push you into one for the commission.


Run your refinance scenario

Should You Refinance?

Current loan
$
%
yr
New (proposed) loan
%
$

Default $6,000 is a typical Florida refi estimate. Real number depends on lender, title, and county.

Your Refi Math

Good refi – solid savings

New monthly P&I

$0

vs current $0 – difference noted below.

Monthly savings

$0

P&I only – excludes taxes, insurance, MI.

Break-even point

0 months

Months until monthly savings cover the closing costs. Below 36 months is generally a good sign.

Lifetime interest savings

$0

Total interest on the new loan vs total interest if you stayed on the current loan to its end.

Get a Refi Quote in 24 Hours

Calculator uses standard amortization math (P&I only). Real refinance scenarios also factor in your remaining loan term resetting, MI removal opportunities, and rate-vs-cost trade-offs we model individually at pre-approval.


When a Refinance Actually Pencils

Most refi conversations boil down to three numbers: monthly savings, break-even, and how long you’ll keep the loan. Get all three pointing the same direction and you’ve got a real refinance. Get one wrong and the math breaks.

  • Monthly savings need to be meaningful enough to matter – a $30/month savings on a $6,000 closing-cost refi means a 200-month break-even (over 16 years). Not great unless you’re staying that long.
  • Break-even point should be well under your expected stay. If you’re planning to sell or refinance again in 4 years and your break-even is 5, you’ll lose money on the deal.
  • Lifetime interest matters because resetting a 25-year loan back to a 30-year loan can mean paying tens of thousands more in interest even though your monthly drops. Sometimes a 20- or 15-year refi is the right move if you can afford the higher payment.

Other Reasons People Refinance (Beyond Rate)

  • Drop FHA mortgage insurance by refinancing into conventional once you’ve hit 20% equity. FHA MI is for the life of the loan; conventional PMI drops at 78% LTV.
  • Cash-out for renovations or debt consolidation – this is a different math entirely. The break-even comparison is “what’s the new mortgage rate vs the rate I’d pay on the debt I’m consolidating.”
  • VA IRRRL streamline – if you have a VA loan and rates have dropped, our VA funding fee calculator shows the IRRRL is just 0.5% in fees. Lowest-friction refi out there.
  • Shortening the term – going from 30 to 20 or 15 saves enormous amounts of lifetime interest. The break-even math is different because you’re trading a higher payment for faster payoff.

What This Calculator Can’t Tell You

  • Your real new rate. The calculator uses whatever you input. Your real rate depends on credit, LTV, occupancy, loan size, and the day’s market.
  • Your real closing costs. $6,000 is a Florida refi average. Yours could be $4,500 or $9,000 depending on county, lender, title insurance, and prepaids.
  • MI removal value. If you’re getting out of FHA MI, that’s real monthly savings the calculator doesn’t capture. Add an estimated $100-$200/month to your savings if that applies.
  • Tax implications. Mortgage interest deduction changes when you refinance. Talk to your CPA before assuming the after-tax math.

Use this as a directional check. For your real refi numbers, send us your scenario for a free quote. We’ll pull current rates, run the actual math on your property and credit, and give you a straight answer on whether it makes sense.

Refinance FAQ

The old rule of thumb was 1% rate drop. That’s outdated. The real answer is whatever passes the break-even test for how long you’ll keep the loan. A 0.5% drop on a large loan with low closing costs can be a great refi. A 1.5% drop with high closing costs and a planned sale in 3 years can be a bad refi. The calculator above gives you the actual math.

Usually yes – financing closing costs into the new loan keeps cash in your pocket and the break-even math still works because you’re spreading the cost over the loan term. Just remember the loan balance gets a bit higher, which the calculator already accounts for if you put your post-refi balance in. We can also do “no closing cost” refinances where the lender absorbs costs in exchange for a slightly higher rate – sometimes that’s the cleanest option.

As often as it makes sense. Most loan types have a “seasoning” requirement of 6-12 months between closings, but otherwise no cap. We’ve had clients refinance twice in 18 months when rates dropped fast – both times the math worked. Don’t refi out of habit; refi when the numbers say to.

Only if you choose a 30-year term on the new loan. You can refinance into any term that’s available – 30, 25, 20, 15, even 10. If you’ve been paying down a 30-year loan for 5 years and refinance into another 30, you’ve effectively added 5 years to your payoff. If you don’t want that, refinance into a 25-year (or whatever matches your remaining time). Your monthly might still drop because of the rate, even with the shorter term.

Yes – if your loan-to-value (LTV) is now under 80%, you can refinance out of PMI even if you wouldn’t otherwise refinance. Sometimes worth it just for the MI removal even if the rate barely changes. Conventional PMI also drops automatically at 78% LTV based on the original purchase price, but a new appraisal at refi can establish current value and accelerate that.

No. We pull your scenario, quote against current rates from our 200+ wholesale lenders, and give you a straight answer in 24 hours on weekdays. If the math doesn’t work, we’ll tell you. We get paid when a loan closes; we don’t get paid for talking through a refi that shouldn’t happen.


Keith Meredith, Florida mortgage broker and Division President at Black Rock Mortgage

About the Author

Keith Meredith

Division President, Black Rock Mortgage
NMLS 303217 · 15+ years originating · $100M+ in mortgages closed

Keith Meredith is a 18 year mortgage industry expert who has originated over $100,000,000 in mortgages. Headquartered in Ocala, Florida, Keith runs Black Rock Mortgage as a division of Coast 2 Coast Mortgage, a lender licensed in 40 states. Keith specializes in manufactured home financing, self-employed mortgages, VA construction loans, and helping first-time buyers navigate FHA, USDA, and conventional programs. He creates written and video content to help borrowers understand their financing options.

Call or text directly: 352-615-1613 · Follow Keith on X, Facebook, Instagram, and LinkedIn

Get Your Real Refi Quote

The calculator gives you a directional answer. A real quote gives you exact numbers, current rates, and a recommendation we’ll stand behind. Send us your scenario; we’ll run it across 200+ wholesale lenders and reach out within 24 hours on weekdays. Free, no obligation.