The Florida 10% cap commercial owners often misunderstand
Florida commercial owners sometimes hear that the state limits assessment increases to 10% each year. That is directionally true, but incomplete. The limitation in Florida Statutes section 193.1555 is not a promise that a property will be assessed at only 10% of market value, and it is not a substitute for checking whether the underlying just value is correct.
The rule works more like a brake on annual increases after a property enters the limitation. A qualifying commercial parcel is generally assessed at just value when it first becomes eligible. Beginning the following year, the annual change in assessed value may not exceed 10% of the prior year's assessed value. If the capped amount would be higher than the property's just value, the assessed value must be reduced to just value. See the 2026 Florida Statutes, section 193.1555.
What the limitation does—and does not—do
Section 193.1555 defines nonresidential real property by reference to the assessment limitations in article VII, section 4 of the Florida Constitution. For commercial owners, the practical point is that the rule is aimed at qualifying nonresidential property and certain larger residential properties, not every parcel in every situation.
The first year a property becomes eligible, the statute starts with just value. The limitation applies beginning in the next year. In simplified form:
- Year of eligibility: assessment at just value, subject to the statute's levy-specific language.
- Following years: annual assessed-value increase generally capped at 10% of the prior year's assessed value.
- Downward protection: if the capped assessed value would exceed just value, the assessed value must be lowered to just value.
That last point matters. A cap on increases is not an immunity from a lower assessment. If market evidence supports a lower just value, the owner can still have a valuation issue even when the assessed value has risen by less than 10%. Conversely, an assessment that is below just value because of the cap is not automatically proof that the county made a mistake.
For background on the distinction between these numbers, see Castellan's guide to market value versus assessed value.
A sale can reset the number
The most important planning issue is the reset rule. Except for statutory exceptions, property assessed under section 193.1555 is assessed at just value as of January 1 of the year following a qualifying improvement or a change of ownership or control. After that reset, the annual limitation applies again.
The statute's definition of change of ownership or control includes a sale, foreclosure, transfer of legal or beneficial title, or a cumulative transfer of control or more than 50% of the ownership of the legal entity that owned the property when it was most recently assessed at just value. That means a transaction involving an entity owner can matter even when the deed does not move in the way an owner expects.
Section 193.1555 lists exceptions, including a transfer to correct an error, a transfer between legal and equitable title, and certain cumulative share transfers of a publicly traded company through a public exchange. The publicly traded-company exception does not apply to a merger or acquisition, including an acquisition through outstanding shares.
Do not treat this article as a transaction opinion. The classification of a particular transfer depends on the facts, the ownership structure, and the statute in effect for the relevant assessment year. Before closing, owners should have counsel and their tax or assessment team analyze whether the transaction could trigger a reset.
Improvements and parcel changes can create a separate increase
The 10% limitation does not mean that every addition to a commercial property is absorbed into the capped base. Under section 193.1555, a qualifying improvement is a substantially completed improvement that increases the property's just value by at least 25%. A qualifying improvement or other change can cause an assessment at just value as of the following January 1.
The statute also addresses ordinary changes, additions, or improvements, which are assessed at just value as of the first January 1 after substantial completion. Special rules apply to property damaged or destroyed by misfortune or calamity, including conditions involving square footage and a change in the property's character or use. Combining or dividing parcels is addressed separately: the increase in value attributable to the combination or division is assessed at just value and apportioned among the resulting parcels.
For an owner, the recordkeeping lesson is straightforward. Preserve permits, certificates of occupancy, construction invoices, substantial-completion evidence, parcel maps, legal descriptions, and closing documents. The date and nature of the event can matter as much as the dollar amount.
Just value still calls for property-specific evidence
Florida law directs the property appraiser to consider factors in deriving just valuation, including present cash value, highest and best use, location, size, cost and replacement value, condition, income, and net proceeds from a sale. Those factors appear in Florida Statutes section 193.011.
For income-producing property, that usually means the owner's evidence should explain the parcel's actual economics rather than rely on a broad countywide trend. Useful materials may include rent rolls, leases, operating statements, vacancy and collection data, capital-expenditure records, insurance costs, repair history, and comparable sales or listings adjusted for meaningful differences. For an owner-occupied industrial or retail property, market rent and comparable transactions may be more useful than the owner's accounting profit alone.
The limitation can make a mistaken assessment harder to spot because the assessed value may appear stable. Compare the notice's just value and assessed value, review the property record for changes, and ask what event caused the current year's number. A capped increase and an over-high just value are different questions.
Notice the reset before it becomes a surprise
Owners should reconcile their annual notice against three dates: January 1, the date of any ownership or control change, and the date an improvement became substantially complete. Also check whether the property was combined, divided, damaged, or partially removed.
If a property has been receiving the limitation and a change of ownership or control occurred, Florida law separately requires the owner to notify the property appraiser promptly. A recorded deed or other instrument can serve as notice when the change is recorded in the county's public records. If an owner fails to notify the appraiser and the property was not entitled to the limitation, the statute provides for avoided taxes, 15% annual interest, and a 50% penalty, subject to the statute's terms. See Florida Statutes section 193.1556.
This is one reason a portfolio calendar should track ownership changes and assessment records together. A deed closing checklist alone may not capture an entity-level change of control, while an assessment review that ignores the closing history may misread the correct base year.
What to do when the number still looks wrong
Start with the notice and property record. Confirm the parcel, use, square footage, ownership history, and any improvements. Then separate the questions: Is the just value supported by the evidence? Was the 10% limitation applied to the correct prior-year assessed value? Did a reset event occur? Was an improvement or parcel change placed on the roll in the right year?
Florida's Value Adjustment Board process and local filing instructions govern how an owner seeks review. Deadlines and submission procedures should be confirmed for the county and tax year rather than borrowed from another county or an old notice. The 10% limitation may affect the tax exposure, but it does not guarantee a reduction or a particular result.
Castellan can help commercial owners organize the notice, property facts, and valuation evidence into a focused review. Request a free analysis to identify the assessment questions worth investigating—without assuming the outcome in advance.