Every year I talk to buyers who close on their St. Johns County home in the fall, get settled in, and then realize months later — sometimes after receiving their first tax bill — that they never filed for homestead exemption. They assumed it happened automatically. It doesn't.

This is one of the most common and costly surprises for out-of-state buyers relocating to St. Augustine, Ponte Vedra, Nocatee, or anywhere else in St. Johns County. Florida's homestead exemption can save you $700 to $1,200 or more each year on your property taxes — but only if you apply. And there's a deadline.

Here's everything you need to know, including what to do if you already missed it.

What the Exemption Actually Does

The homestead exemption is a Florida constitutional protection (Article VII, Section 6) that reduces the taxable value of your primary residence. For 2026, the total exemption is $51,411, structured in two tiers:

• First $25,000: Applied to all property taxes, including school district taxes
• Second $26,411: Applied to the assessed value between $50,000 and $75,000 — but not to school district taxes

In plain terms: if your home is assessed at $500,000, you pay taxes on approximately $448,589 instead of the full $500,000. At St. Johns County's blended millage rate — which combines county, school board, and various special districts into a combined rate that typically runs 14 to 16 mills depending on your exact location — that's a meaningful reduction every single year.

For a $600,000 home in St. Johns County, the exemption typically saves homeowners somewhere between $700 and $1,200 annually. It's not a one-time discount. It compounds for as long as the property is your primary residence.

The Hidden Bonus: Save Our Homes Protection

Filing for homestead does more than lower your tax bill today. It also activates Florida's Save Our Homes (SOH) cap, which is arguably more valuable over time.

The SOH cap limits how much your assessed value can increase each year — to 3% or the Consumer Price Index change, whichever is lower. Once you've had homestead for one full year, your annual tax increases are constrained by that cap no matter how much your home's market value climbs.

Here's why that matters in St. Johns County specifically: this county has been one of the fastest-growing in the country. Property values have increased dramatically over the past decade, and that upward pressure is expected to continue. Without the SOH cap, your tax bill would track those increases closely. With it, your taxable assessed value grows at a small fraction of the rate your market value does.

Long-time homesteaders in communities like Nocatee, Ponte Vedra, and St. Augustine proper are sitting on assessed values that can be tens of thousands of dollars below their current market value — and that gap grows every year they stay. It's one of the most underappreciated financial benefits of Florida homeownership.

One critical note for buyers: when you purchase a home from a long-time owner, their SOH cap disappears. Your assessed value resets to just (market) value in the year following your purchase, and your own 3% cap begins accumulating from there. This is why some buyers in St. Johns County see a significant property tax increase in their second year of ownership — particularly when they bought from someone who had homestead for 10 or 15 years. It's not a mistake or an error. It's how Florida's system works. Your new cap starts building immediately after your first homesteaded year, and it will benefit you for every year you stay in the home.

Eligibility and What You Need to File

To qualify, you must own the property and occupy it as your primary residence as of January 1 of the tax year you're filing for. Seasonal or part-time residents do not qualify. The exemption applies to one property only — your primary home, not investment properties or vacation homes.

When you apply with the St. Johns County Property Appraiser, have these documents ready:

• Florida driver's license or state ID — updated to show your new home address
• Social Security numbers for you and your spouse, if applicable
• Florida vehicle registration — updated to your new address
• Florida voter registration — updated, if registered
• For non-US citizens: Permanent Residence card (green card), front and back
• For property held in trust: a complete copy of the trust agreement

Update your driver's license and vehicle registration to your new address before you apply. The property appraiser's office uses these documents to confirm that you're actually living in the home, not just holding title. If your license still shows your old address from Ohio or New York, your application can be delayed.

This is something I walk every relocation client through: getting all those Florida ID updates done in the first 30 days after closing sets you up to file cleanly when the time comes.

How to Apply and When

The St. Johns County Property Appraiser makes this straightforward. You have two options:

Online: Apply through the county's secure portal at hx.sjcpa.us/ApplyOnline. This is the fastest option for most buyers.

In person: Visit the office at 4030 Lewis Speedway, Suite 203, Saint Augustine, FL 32084. You can also call (904) 827-5500 or visit sjcpa.gov with questions.

The filing deadline is March 1 of the tax year in which you want the exemption to apply — meaning you must establish your residency by January 1 of that year. In 2026, the deadline shifted to March 2 because March 1 fell on a Sunday.

Once you're approved, you don't need to re-apply each year. The exemption renews automatically as long as the property remains your primary residence and your information doesn't change significantly.

Missed the March Deadline? You May Still Have Time

If you closed on your St. Johns County home in late 2025 and realized you never filed — or if life got busy and March slipped past you — don't assume you're out of luck for the year.

Florida law allows the Property Appraiser's office to accept late applications for just cause. That window stays open through the TRIM period, which typically runs through late August or mid-September (25 days after the county mails TRIM notices).

"Just cause" is broader than people think. You don't need a medical emergency or a natural disaster. Circumstances like moving in late in the year and not knowing the deadline existed, being unaware the exemption requires a separate application, or dealing with a significant life transition can qualify. The key is contacting the office proactively, explaining your situation clearly in writing, and providing documentation that supports your account.

Call (904) 827-5500 as early as possible. The office is generally helpful with buyers who make a good-faith effort. And if you're reading this in the spring or summer, there's a real chance you can still protect your exemption for the current tax year.

This is exactly the kind of thing I check in on with my clients after they close. It's one of those steps that doesn't come with a reminder from your lender or your title company — it just needs to happen. If you're a recent buyer in St. Johns County and haven't filed yet, reach out and I can point you in the right direction.

For more on what to expect in your first year as a Florida homeowner, the 10 things I tell every buyer before moving to St. Augustine covers the bigger picture — including the financial adjustments that catch out-of-state relocators off guard. And if you're still evaluating your options, my guide on the most costly homebuying mistakes relocating buyers make is worth reading before you sign anything.