California vs. Florida Property Tax Appeals: Deadlines, Boards, and What Triggers Reassessment

California and Florida run two of the most different property tax systems in the country, and that difference matters before you ever get to the appeal itself — what you're disputing, how urgently, and in front of whom, all depend on which state's rules apply to you. This is a factual side-by-side, not a ranking of one system over the other. Every deadline, board name, and cap percentage below is sourced to an official state agency document, with the date we checked it.

One disclosure up front: we're Grove Hopper, a property tax appeal tool. We don't operate in every county in either state yet, and nothing below is written to steer you toward using us — it's written to answer the actual comparison question as accurately as we can source it. Where we couldn't independently verify a specific figure, we say so rather than guess.

The short version

Who sets the value, and what board hears your appeal

California uses the term "assessor" — an elected or appointed county official who determines assessed value. If you disagree with that value, you file an Assessment Appeal Application with the clerk of the board during the filing period. The first formal hearing is either before the county's dedicated Assessment Appeals Board (in counties that have created one) or before the county Board of Supervisors sitting in the separate capacity of a county Board of Equalization (California State Board of Equalization, California Property Tax: An Overview, Publication 29, March 2025, p. 12).

Florida uses the term "property appraiser" — an elected county official who values property. Appeals go to the county's Value Adjustment Board (VAB), an independent body with five members: two from the county's board of county commissioners, one from the county school board, and two citizen members. Many counties use special magistrates to conduct the actual hearings and issue a recommendation, but the VAB itself makes all final decisions (Florida Department of Revenue, Petitions to the Value Adjustment Board, Form PT-101, R. 8/25).

Filing deadlines

California's regular assessment appeal filing period begins July 2 every year and ends on one of two dates depending on the county: September 15 if the assessor mails assessment notices to all secured-roll taxpayers by August 1, or November 30 if not. The California State Board of Equalization certifies the exact deadline for every county annually. For the 2026 filing period, most California counties — including Los Angeles, Orange, San Diego, Riverside, and San Bernardino — landed on the later November 30, 2026 date; a smaller group, including Alameda, San Francisco, Santa Clara, and Ventura, landed on the earlier September 15, 2026 date (California State Board of Equalization, Letter to Assessors 2026/023, June 2, 2026). This split is re-certified every year, so always check the current list rather than assuming last year's deadline still applies to your county. Assessments made outside the regular cycle — supplemental or "escape" assessments — must generally be appealed within 60 days of the notice being mailed, and disaster-relief assessment appeals have a six-month window (BOE Publication 29, p. 12).

Florida's deadline is simpler and shorter: you have 25 days from the date the property appraiser mails your Notice of Proposed Property Taxes (TRIM notice) to file a petition with the VAB. TRIM notices are typically mailed in mid-August, which in practice usually puts the Florida filing deadline in early-to-mid September — but the 25-day count from your own county's actual mailing date is what controls, not a fixed calendar date. The same 25-day window applies to portability appeals and change-of-ownership-or-control appeals; exemption or classification denial appeals get 30 days from the denial notice instead (Florida DOR Form PT-101, R. 8/25, p. 2).

The practical difference: Florida's deadline is a short, hard clock that starts the moment your specific notice is mailed — miss the 25 days and you're generally waiting until next year. California's window is longer (July 2 through the fall) but the exact end date depends on your specific county, so "just before the fall" isn't good enough — you need your county's certified date, and it's worth writing it down as soon as it's published each June.

What you're actually appealing is a different kind of number in each state

This is the part of the comparison most articles skip, and it's the one that matters most for understanding why you might have a case at all.

California: an acquisition-value system (Proposition 13)

On June 6, 1978, California voters passed Proposition 13, a constitutional amendment that fundamentally changed how property is valued for tax purposes. Before Prop 13, real property was reappraised on a cycle (no more than every five years) to track current market value. Since Prop 13, a property is reassessed to full current market value only when it changes ownership or undergoes completed new construction — that market value at the time of the triggering event becomes the property's new "base year value." Between those triggering events, annual increases in the base year value are capped at no more than 2% per year. Prop 13 also capped the general property tax rate itself at 1% of taxable value, plus whatever additional rate is needed to service voter-approved bonded debt. The State Board of Equalization describes the overall effect plainly: Proposition 13 "converted the market value-based property tax system to an acquisition value-based system" (BOE Publication 29, p. 1; confirmed at boe.ca.gov/proptaxes/decline-in-value).

The practical result: two nearly identical houses next door to each other can have very different assessed values, purely because one owner bought decades ago and the other bought last year. If you just purchased a California home, your assessment is your purchase price (adjusted for any exempt or non-taxable components) — an appeal in year one is unusual, since the county is generally just applying what you paid. Appeals become more common later, or after a reassessable event you believe was mis-valued (a new addition valued too high, for example), or in situations where market value has genuinely dropped below your assessed base year value — a separate mechanism known as a Proposition 8 "decline in value" review.

Florida: annual market-value assessment, softened by the Save Our Homes cap

Florida takes the opposite approach at the starting point: county property appraisers assess all real property at its "just value" — essentially market value — as of January 1 every single year, with no acquisition-value carryover. What limits the tax impact of that annual revaluation isn't a purchase-price anchor like Prop 13's — it's the Save Our Homes (SOH) benefit, which applies only to homesteaded (primary residence) properties. After the first year a home receives the homestead exemption, its assessed value (just value minus the accumulated SOH benefit) cannot increase by more than 3% in any following year, regardless of how much the just/market value itself rose. The gap between the capped assessed value and the uncapped just value is the SOH benefit, and it can become substantial in a fast-appreciating market (Florida DOR Form PT-107, Property Tax Information for First-Time Florida Homebuyers, R. 08/24).

Critically, the SOH benefit does not transfer with the property. When a homesteaded property changes ownership, Florida law requires the property appraiser to remove the previous owner's exemptions and reassess the property so the assessed value resets to that year's just value, effective January 1 following the purchase. This is the single most common surprise for new Florida homeowners: your first full tax bill can be meaningfully higher than the seller's last one, even on an identical sale price, purely because the seller's accumulated SOH benefit disappeared with the sale (PT-107). Florida also offers a separate "portability" provision letting an existing homesteaded owner transfer some of their accumulated SOH benefit to a new Florida homestead — the mechanics of a specific move are county- and case-specific enough that we're not going to state a general dollar cap here without a source we could verify in this pass; ask your new county's property appraiser directly.

Non-homestead property — second homes, rentals, and commercial property — is not covered by the Save Our Homes cap at all in the source we verified above; a different, separate assessment-growth limitation applies to non-homestead property under Florida law, and we did not verify its specific percentage for this piece. If that applies to you, confirm the current cap with your county property appraiser or the Florida DOR directly rather than relying on a number from a general comparison article.

The comparison in one sentence

California generally protects you from reassessment until something changes (a sale or new construction), then caps growth at 2% a year from that new baseline. Florida reassesses everyone to market value every year, but softens the blow for homesteaded owners with a 3% annual cap on the assessed value — a cap that resets to zero benefit the moment the property sells.

How the appeal process differs once you're in it

California: After filing the Assessment Appeal Application, the first formal hearing is an administrative hearing before the Assessment Appeals Board (or the Board of Supervisors sitting as a Board of Equalization). Representation by an attorney or tax agent is optional. As a general rule the property owner carries the burden of proving the assessor's value is wrong — except for an owner-occupied, single-family home that is the taxpayer's principal residence, where the burden shifts to the assessor to prove the valuation is correct. If the board denies the appeal, the property owner can seek review in superior court, but only on narrow legal grounds — arbitrariness, lack of due process, abuse of discretion, or failure to follow the legally prescribed valuation method — not by re-arguing the facts; the court reviews the administrative record rather than hearing the case fresh (BOE Publication 29, pp. 12–13).

Florida: After filing a VAB petition, you'll receive notice of your hearing date at least 25 days in advance. Florida builds a formal evidence-exchange process directly into the timeline: for hearings after September 1, 2025, you must give the property appraiser a list and summary of your evidence at least 15 days before the hearing, and the property appraiser must do the same for you, automatically, at least 15 days out. You can represent yourself or use a family member, attorney, licensed real estate appraiser or broker, CPA, or an authorized representative. If your petition concerns your property's value (as opposed to an exemption denial), Florida law requires you to have paid at least 75% of the ad valorem taxes owed (plus all non-ad valorem assessments) before the taxes become delinquent, or the VAB must deny your petition by April 20 regardless of its merits. The VAB must issue its final decision within 20 calendar days of the last day it was in session, and if you disagree with that decision, you can file a lawsuit in circuit court (Florida DOR Form PT-101, R. 8/25).

The practical difference: Florida's process is faster-moving and more procedurally standardized statewide (the same PT-101 form and timeline structure applies in every county), with a real financial condition attached — you generally need to keep paying most of your bill to preserve a value-based appeal. California's process varies more by county in practical mechanics (some counties use hearing officers for certain property types), moves on a longer clock, and gives owner-occupied homeowners a meaningful procedural advantage — the assessor, not the homeowner, has to justify the number.

Which state's system means you're more likely to have a case

This isn't a state-by-state "which is better" question — it depends entirely on your specific situation:

• In California, you're most likely to have a legitimate appeal in the specific window right after a reassessable event — a recent purchase where the assessed value seems to have been set incorrectly, a new addition or improvement valued at more than its actual market contribution, or a genuine market decline that's pushed current value below your Prop 13-capped base year value (the Prop 8 decline-in-value scenario). If you've owned the same home for years with no reassessable event, your base-year assessment is likely well below current market value by design — that's not something to appeal, it's Prop 13 working as intended.
• In Florida, because every property is revalued annually, you have a fresh opportunity to check the number every single year — and the 25-day TRIM notice window is the only chance to act on it before the next cycle. A homesteaded owner who's held the SOH cap for years may have a large gap between just value and assessed value, which means even a legitimate increase in market value might not translate to a proportional tax increase — but a newly purchased home, freshly reset to full just value, has no such cushion and is worth checking against real comparable sales every year the notice arrives.

Sources (checked August 2026)

• California assessment appeal filing periods, board structure, burden of proof, and appeal process — California State Board of Equalization, California Property Tax: An Overview, Publication 29 (March 2025)
• California's certified 2026 county-by-county filing deadlines — California State Board of Equalization, Letter to Assessors No. 2026/023 (June 2, 2026)
• Proposition 13 background, the 2% annual cap, and change-in-ownership/new-construction reassessment triggers — California State Board of Equalization, Decline in Value / Proposition 8 guidance
• Florida Value Adjustment Board structure, petition deadlines, filing fee, evidence exchange, and payment requirements — Florida Department of Revenue, Petitions to the Value Adjustment Board, Form PT-101 (Rev. 8/25)
• Florida just value / assessed value / taxable value structure, homestead exemption, Save Our Homes 3% cap, and reassessment on change of ownership — Florida Department of Revenue, Property Tax Information for First-Time Florida Homebuyers, Form PT-107 (Rev. 08/24)

Note on scope: Florida's non-homestead assessment cap and the exact dollar limits on Save Our Homes portability were not verified against a primary source for this piece and are deliberately not stated as specific figures above — confirm both directly with your county property appraiser or the Florida Department of Revenue if either applies to you.

Whichever state you're in, start with the actual number

Both systems ultimately come down to the same question: does your assessed value reflect reality, or is it overshooting? Grove Hopper's free check compares your property's assessment against real comparable sales in your area in about two minutes, so you know whether it's worth pursuing a formal appeal before your state's specific deadline — July–November in California, 25 days from your TRIM notice in Florida — passes you by. Grove Hopper doesn't file appeals for you or act as your legal representative in either state; you review, sign, and submit everything yourself.