What is the Florida homestead exemption and how does it work in St. Johns County?
Florida's homestead exemption reduces the taxable value of your primary residence by up to $50,000, and — more importantly — caps future annual increases in your assessed value at 3% per year through the Save Our Homes provision. To qualify, you must own and occupy the home as your primary Florida residence as of January 1 and file your application with the St. Johns County Property Appraiser by March 1. Out-of-state buyers relocating to St. Johns County start fresh — no prior savings transfer — but the protection begins accumulating from your first full year of homestead and compounds significantly on homes in the $450,000–$2,000,000 range.
Most out-of-state buyers who are relocating to St. Johns County find out about the Florida homestead exemption at some point during the home search. What they usually don't find out until later — sometimes much later — is how the timing works, what the Save Our Homes cap actually does for them over time, and how much it can cost to miss the filing deadline by even a single year.
This is one of the most financially consequential pieces of information for any relocating buyer in Northeast Florida, and it almost never comes up in the initial home search conversation.
Here's everything you need to know before you close.
The Exemption Itself: What It Does to Your Tax Bill
Florida's homestead exemption reduces the taxable value of your primary residence by up to $50,000. It works in two layers:
- The first $25,000 applies to your home's assessed value across all tax millages — county, school, water management, everything.
- The second $25,000 applies only to assessed value between $50,000 and $75,000, and only to non-school millages.
In St. Johns County, where the combined millage rate runs approximately 12–13 mills total, the homestead exemption typically saves a homeowner in the $500,000–$800,000 range between $600 and $900 per year on their property tax bill.
That's real money, but it's not the main story. The Save Our Homes cap is.
Save Our Homes: The Real Long-Term Value
When you file for homestead exemption in Florida, you also activate the Save Our Homes (SOH) cap — a constitutional provision that limits how much the county can increase your home's assessed value in any given year. The cap is 3% or the rate of inflation (CPI), whichever is lower.
Here's a real-world illustration. Say you buy a home in St. Johns in 2026 for $650,000. At a conservative 5% annual appreciation rate:
| Year | Market Value | SOH Assessed Value | Taxable Value (after exemption) |
|---|---|---|---|
| 2026 | $650,000 | $650,000 | ~$600,000 |
| 2031 | $830,000 | ~$754,000 | ~$704,000 |
| 2036 | $1,060,000 | ~$874,000 | ~$824,000 |
By 2036, your home's market value has grown to over $1 million — but you're only being taxed on $824,000, not $1,060,000. That difference of roughly $236,000 in assessed value, at 13 mills, represents over $3,000 per year in tax savings.
This is why I tell every buyer I work with: filing for homestead on time is one of the most valuable financial moves you'll make in your first year of ownership.
The Reset Problem: What Happens When You Buy
When a homesteaded property sells, the previous owner's Save Our Homes benefit disappears entirely. It does not transfer to you.
A seller who bought in 2004 may have accumulated 20+ years of SOH protection, with their assessed value far below market. The day they close, that protection is gone. Your first assessment will be close to the purchase price — full market value — with no SOH buffer.
Don't use the seller's tax bill to budget your carrying costs. Calculate based on the purchase price and the current millage rate.
If you bought new construction, there's a related wrinkle: your Year 1 tax bill is typically assessed on the vacant lot, and Year 2 reassesses to the full improved value. The SOH cap only protects you after that initial full-value assessment.
The Two Deadlines That Control Everything
January 1 — Residency Qualification Date
To receive homestead exemption for a given tax year, you must own and occupy the property as your primary Florida residence on January 1 of that year.
This is why closing before year-end has real financial value for relocating buyers — especially those moving to St. Johns County in the fall. A December closing can put you one full year ahead of a January closing in terms of homestead benefits.
March 1 — Filing Deadline
Once you've qualified (owned and occupied as of January 1), you have until March 1 of that same year to file your exemption application with the St. Johns County Property Appraiser.
Miss the March 1 deadline, and you lose the exemption for that entire year — no extensions, no exceptions for most buyers. Given how the SOH cap compounds, the real cost of a missed deadline is far larger than just that first year's savings.
Portability: For Florida-to-Florida Moves Only
If you're moving to St. Johns County from another Florida home that had homestead exemption, you may be eligible to transfer your accumulated Save Our Homes benefit — this is called portability. Up to $500,000 can transfer, and you must apply within three tax years of abandoning your previous homestead.
If you're relocating from out of state, portability does not apply. You start fresh, with the SOH cap beginning to protect you from year two forward.
How to Apply in St. Johns County
- Online: sjcpa.gov
- In person: 4030 Lewis Speedway, Suite 203, St. Augustine, FL 32084
- Phone: (904) 827-5500
You'll need a valid Florida driver's license or state ID reflecting your homestead address, your Social Security number (and your spouse's), and your previous Florida homestead address if applying for portability. The application is free.
Scenario | Taxable Value | Annual Property Tax |
|---|---|---|
| No homestead exemption | $650,000 | ~$8,450 |
| With homestead exemption | ~$600,000 | ~$7,800 |
| Annual savings | ~$650/year |
Add the Save Our Homes cap over 10 years at 5% appreciation, and the total savings versus paying full market value grows to well over $3,000 per year — and keeps growing.
For a broader look at carrying costs in this market, see the Cost of Living in St. Augustine & St. Johns County.
"I’m not one that writes reviews but in this case, I have good reason to share our experience. We lived next door to my elderly parents who decided it was time to move to assisted living, giving us the freedom to make a move too. Prior to listing we interviewed many realtors. It was a big decision because, in addition to our own house, we also had the responsibility of selling my parent’s and we wanted to get it right for them as much as for us. No one came even close to Kim in terms of knowledge of the marketplace, professionalism, solid advice and the genuine desire to ensure we were getting optimal service. Adding to Kim’s responsibility was the fact that my parents had already moved out and we were spending weeks at a time out of state while both houses were on the market. Kim didn’t miss a beat. She held open houses, took care of a minor roof repair in our absence and kept us fully informed during the whole process. Her enthusiasm, energy and dedication to getting the job done never waivered from the day we signed with her until the day of closing. Both houses sold within weeks of listing and all I can say is THANK YOU Kim Devlin. You are truly amazing and a credit to your profession."-Lyne M.
Frequently Asked Questions
What is Florida's homestead exemption and how much does it save?
Florida's homestead exemption reduces the taxable value of your primary residence by up to $50,000. In St. Johns County, the exemption typically saves a homeowner in the $500,000–$800,000 range between $600 and $900 per year. The longer-term savings come from the Save Our Homes cap, which limits annual assessment increases to 3% regardless of how much market values rise.
When do I have to file for homestead exemption in Florida?
You must file by March 1 of the tax year for which you're seeking the exemption. To qualify, you must have owned and occupied the property as your primary Florida residence as of January 1 of that same year. Missing the March 1 deadline means losing the exemption for that entire year.
Does the previous owner's homestead exemption transfer to me when I buy?
No. When a homesteaded property sells, the previous owner's Save Our Homes benefit is completely reset. Your first-year assessment will be at or near the full purchase price — always calculate your own taxes based on the purchase price and current millage rates.
Can I transfer my homestead exemption if I'm moving from out of state?
No. Florida's portability provision only allows transfer of the Save Our Homes benefit from one Florida homestead to another. If you're relocating from another state, you start fresh — your SOH cap begins accumulating from your first full year of homestead in Florida.
Does homestead exemption apply to new construction homes?
Yes — but timing matters. New construction homes are often assessed on just the lot value in the first year, then reassessed to full market value in year two. Filing homestead as soon as you qualify means the Save Our Homes cap begins protecting you after that first full-value reassessment. See also: What Buyers Pay at Closing on New Construction.
If you're relocating to St. Augustine, Palm Coast, or St. Johns County and want a head start before you arrive, grab Kim's free St. Augustine Relocation Guide. Download it here.
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