Florida Rent vs. Buy Calculator
"Should we keep renting, or is it time to buy?" is the question we hear most from first-time buyers in Putnam and St. Johns County. This tool runs the actual math instead of a gut feeling — enter your numbers and see the year buying overtakes renting, plus the running cost of each path year by year. We're Matt and Lindsey Parham, and we built this calculator the way we'd sit down and explain it to you at our kitchen table.
Run your numbers
| Year | Cumulative Rent | Cumulative Buy (net of equity & appreciation) | Advantage |
|---|
What "monthly rent vs. monthly payment" leaves out
Comparing your current rent to a mortgage quote is the comparison most people make, and it's the wrong one. A fair comparison has to account for more than the sticker numbers:
- What it costs to get in the door — your down payment plus roughly 2% in buyer-side closing costs.
- What renters don't pay — property taxes, insurance (Florida's runs high), maintenance, HOA dues if any, and PMI below 20% down.
- What that down payment could have earned elsewhere — if you didn't put it into a house, it could be invested. Most rent-vs-buy tools skip this. We don't, because it's real money either way.
- Equity you build every month through principal pay-down, which offsets the cost of owning over time.
- Appreciation — usually a plus, though it isn't guaranteed every single year.
- What it costs to sell down the road — commissions plus repairs, title, and closing costs on that end too.
- Rent going up every year — a locked mortgage payment gets relatively cheaper the longer rent keeps climbing around it.
How the numbers get built, year by year
For each year in your projection, we total up two running numbers side by side.
The renting side adds up 12 months of rent at whatever rate you're paying, compounding at your inflation input each year, plus the return you're giving up by not having invested your would-be down payment.
The buying side adds the down payment and closing costs, then every year's mortgage payments, taxes, insurance, and maintenance — and subtracts the equity you've built and the home's appreciation, net of what it would cost to sell.
The breakeven year is simply the first year the buying total drops below the renting total. That's the year owning starts winning on paper.
What we see in Putnam and inland St. Johns County
The math tends to favor buying once you're staying put five-plus years, and that holds up especially well in the towns we work most:
- Palatka and rural Putnam County, where prices haven't run away from what rent costs the way they have closer to the coast
- Inland St. Johns County subdivisions, where new construction has kept price-to-rent ratios more reasonable than beachside markets
- River-corridor towns where a well-kept older home can hold value even when the broader market softens — that durability matters more than a hot appreciation number in year one
Where the math gets harder to justify:
- Any property where you might move again within two to three years — the up-front costs need time to be absorbed
- High-HOA communities where dues quietly eat into the ownership advantage
- Flood-zone river properties where insurance costs shift the numbers — run those inputs carefully before you commit
What we tell buyers weighing this decision: don't just chase the fastest breakeven year. Ask which streets and neighborhoods have held their value through a slow market before — that's usually a better predictor of what your equity looks like five years out than any single appreciation assumption.
What this tool can't see
- Tax benefits. Mortgage interest and property taxes are itemized deductions. Fewer households itemize than they used to given the standard deduction, but it's still worth a conversation with a CPA depending on your situation.
- Homestead Exemption and the Save Our Homes cap. Filing for homestead once you own caps how fast your assessment can rise every year after — a real, compounding advantage over renting that a single-year model doesn't fully show. See our Florida Homestead Exemption guide.
- Roots. Owning means you plant the garden, add the shed, put up the well pump you actually want, and stay as long as you're happy — that's worth something to us, and it might be to you, but it's not a line item.
- What buying concentrates and renting spreads. A house is one asset in one location; renting keeps your options open. Neither is automatically the right call — it depends on what you actually want out of the next several years.
Call Matt or Lindsey directly at 386-530-1737 — you get a Parham, not a team inbox.
Frequently asked questions
What does "breakeven year" actually mean?
It's the year the running total cost of owning — down payment, mortgage, taxes, insurance, maintenance, and eventual selling costs, minus the equity and appreciation you've built — drops below what you'd have spent on rent over the same stretch, including what that down payment could have earned invested elsewhere. Before that year, renting has cost you less on paper. After it, owning has.
Should we rent or buy right now?
It comes down to how long you're staying, how local rents compare to local prices, where rates sit, and what else that down payment money could do for you. If you're staying five-plus years in a market where rent-to-price ratios are reasonable — which describes a lot of Putnam and inland St. Johns County — buying tends to win the math. We'd rather run your actual numbers than guess.
What costs of owning does this tool account for that people forget?
Closing costs at purchase, ongoing property tax and insurance, annual maintenance, and selling costs down the road, plus the opportunity cost of tying up your down payment instead of investing it. What it can't see automatically are property-specific costs — a septic pump-out, a well pump replacement, flood insurance on a river lot — so factor those in yourself if they apply to what you're looking at.
How fast does rent actually climb around here?
Florida rent growth has run 3–5% a year on average, with sharp spikes well above that during hot years. The calculator defaults to 3.5%, but adjust it — rents in small-town Putnam County haven't moved the same way they have in Jacksonville or St. Augustine, so use what you're actually seeing in your target neighborhood.
What appreciation rate should we plug in?
Long-run U.S. home appreciation runs roughly 3.5–4% a year, and Florida has often outpaced that. But the number that matters more to us than the average is durability — which streets and neighborhoods hold their value when the broader market cools, because that's what protects your equity if you end up selling sooner than planned. A conservative 3% is a fine starting point.
- Consumer Financial Protection Bureau — Owning a Home tools
- U.S. Bureau of Labor Statistics — CPI & Rent Index
- Federal Housing Finance Agency — House Price Index (Florida)
- Florida Realtors — Statewide Market Data
- Florida Office of Insurance Regulation — homeowners insurance
This calculator provides estimates for informational purposes only. Actual results depend on local market conditions, your loan terms, your tax situation, and property-specific factors. Always verify with a licensed lender and a CPA before you decide. Lindsey Parham is a licensed Florida Real Estate Sales Associate (FL #SL3507832) with Momentum Realty and does not provide tax or investment advice.