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If you have lived in your Florida home for years, you have probably built up a nice cushion between what your house is worth and what the county actually taxes you on. That cushion exists because of the Save Our Homes cap, and one of the most common questions we get from downsizing homeowners is whether that cushion disappears the moment they sell. This is where homestead portability comes in, and it is worth understanding before you list your house.
A quick note before we go further: we are REALTORS, not tax professionals. What follows describes how the portability process generally works in Florida. For how it applies to your specific numbers, your county property appraiser’s office and a qualified CPA are the right resources, not us.
What Homestead Portability Actually Is
Under Florida’s Save Our Homes law, the taxable assessed value of a homesteaded property cannot increase by more than 3 percent a year, even if market values climb much faster. Over a decade or two, that creates a gap between your home’s market value and its assessed value. Portability is the mechanism that lets you carry some of that accumulated difference to a new Florida homestead, instead of starting over at full market value assessment.
How the Transfer Works
The state sets the framework, and county property appraisers administer it. In general terms, when you sell a homesteaded property and establish a new homestead elsewhere in Florida, you can apply to transfer the accumulated Save Our Homes benefit, up to a statutory cap, to the new property’s assessment. If you are moving to a home of equal or greater value, the process works one way. If you are downsizing to a lower-value home, a percentage-based version of the calculation applies instead. The exact math depends on your specific sale price, purchase price, and prior assessed value, which is exactly why this needs to be run by the property appraiser’s office rather than estimated in a blog post.
The Timing Window Matters
Portability is not automatic and it is not indefinite. You generally need to establish your new homestead within two years of abandoning the old one, and you have to file the portability application, Form DR-501T, with your new county’s property appraiser, separately from your standard homestead exemption application. Missing the filing or the window can mean losing the benefit entirely, so this is not something to leave until after closing.
What This Means If You Are Downsizing
For homeowners moving from a larger longtime home into something smaller, whether that is a 55+ community, a townhouse, or a condo, portability is still worth investigating even though the new home costs less. The rules that apply when moving to a lower-value home are different from those for moving to an equal-or-higher-value home, so do not assume portability does not apply just because you are sizing down. It is a conversation worth having with the property appraiser’s office before you assume anything one way or the other.
Where to Verify the Details
Each Northeast Florida county property appraiser, Duval, St. Johns, Nassau, and Clay among them, publishes portability estimators and application forms on their websites. Those tools, along with guidance from a CPA familiar with your full financial picture, are the appropriate place to get numbers you can rely on. Anything general we could put in a blog post would necessarily leave out the details that would actually affect your outcome.
How We Help
We are not the ones to calculate your portability benefit, but we can point you toward the right county resources and help you understand the timeline as it relates to your sale and purchase, so the filing does not get lost in the shuffle of a move. That coordination is part of what we do for downsizing clients across Duval, St. Johns, Nassau, and Clay Counties.







