Property Tax Reassessment After a Sale in Florida: The Line Everybody Misses
If you're buying a Florida apartment building, the property tax number on the seller's operating statement is not your tax number. It's theirs, and the day you close, the county gets to reset it, usually a lot higher. I've watched this one line turn a deal that looked great on paper into a first year that quietly bleeds. It's the most common thing buyers underestimate, and it's completely predictable if you know to look for it.
Here's how it works and how I estimate it before anyone signs anything.
Why the bill jumps
Florida caps how much the assessed value of a non-homestead property can rise each year, ten percent. Sounds owner-friendly, and it is, while you hold. On a building someone has owned for fifteen years, that cap has quietly held the taxable value way below what the building is actually worth. The owner's been paying tax on an old, suppressed number.
Then it sells, and that cap resets. A change of ownership wipes the accumulated protection, and the assessor gets to bring the value back up toward the current market. So the longer the seller owned it, the bigger the gap between their tax bill and yours is likely to be. The building didn't change. The clock did.
How I estimate your real number
You don't have to guess. My rule of thumb, and it's held up well across deals, is to figure the new assessed value at roughly 80 percent of your purchase price, then multiply by the county's millage rate. Millage is just the local tax rate, and you can pull your county's from the property appraiser's site in a couple of minutes.
So a building you're buying for a million: figure about $800,000 in assessed value, times a millage of, say, 1.8 percent, and you're looking at somewhere around $14,000 a year. If the seller's statement shows $6,000 because they've owned it forever, that's an $8,000 swing that lands on you in year one. At a 7.5 cap, eight grand of new annual expense is more than a hundred grand of value. One line.
What it does to the deal
Play that out and you see why it matters so much. Your NOI is what your building's value is built on, and taxes come straight out of NOI. If you underwrote off the seller's old tax bill, your actual return is lower than you thought the moment you own it. Buyers who skip this step overpay without realizing it, and then wonder why the cash flow never matched the brochure.
The good buyers, the ones I respect across the table, always reset the taxes to their purchase price before they make an offer. It's not pessimism, it's just underwriting the building you're actually going to own, not the one the seller has been enjoying.
If you're the seller, know this too
Sellers, this cuts at you from the other direction. A sharp buyer is going to price in that tax reset, which means it shows up as a lower offer whether you address it or not. So it's better to know your building's honest, post-sale numbers before you go to market, so you're not blindsided when the first serious buyer underwrites it that way. Pricing off your own suppressed tax bill is one of the fastest ways to set an asking price the market won't meet.
The takeaway
Whether you're buying or selling, run the taxes at the sale price, not the current bill. Roughly 80 percent of price times your county's millage will get you close, and it's the difference between a first year that performs and one that surprises you. Note that this is a planning estimate, not tax advice, your actual assessment and any appeal is between you, the appraiser, and your accountant.
My valuation model builds this in automatically, reassessing the taxes at value the way a careful buyer would, so the number it gives you already reflects the bill you'd actually inherit. Run your building through it and you'll see the honest NOI, taxes included.