Last updated 2026-07-25
TL;DR
SB 4-D (2022) requires Florida condo and co-op buildings 3+ stories to complete milestone inspections and a Structural Integrity Reserve Study (SIRS), then fund reserves for certain components without waivers starting the 2025 budget year. Most associations owed their first SIRS by December 31, 2024. Check Fla. Stat. 718.112 and 553.899 for your exact deadline.
What is SB 4-D and why did Florida pass it?
SB 4-D is the shorthand everyone uses for the Building Safety Bill, passed in a special legislative session in May 2022 after the Champlain Towers South collapse in Surfside killed 98 people in June 2021. The bill rewrote parts of Chapter 718 (the Condominium Act) and Chapter 553 (Building Construction Standards) to force regular structural inspections and honest reserve funding for older buildings [1]. Before SB 4-D, Florida condo associations could vote every year to waive or reduce reserve contributions for items like roof replacement or building painting. A lot of boards did exactly that, year after year, because nobody wanted to raise fees. SB 4-D closes that loophole for a specific list of structural components. It also created a new inspection product almost nobody had heard of before 2022: the Structural Integrity Reserve Study, or SIRS. The law has been amended twice since 2022, in 2023 (SB 154) and 2024 (SB 1103), mostly to soften deadlines and cash-flow rules after boards complained the original timeline was unworkable. So when people say "SB 4-D requirements," they usually mean the current combined text of Fla. Stat. 718.112 and 553.899, not the original 2022 bill word for word [2].
What is a reserve study?
A reserve study is a professional evaluation of a building's major shared components (roof, structure, plumbing, paint, pavement, and similar items), estimating each one's remaining useful life and the cost to replace it, then calculating how much money the association needs to set aside every year so it has cash on hand when replacement comes due. Think of it as a long-range capital budget backed by physical inspection, not guesswork. A standard (non-SIRS) reserve study looks at whatever components the association's declaration or board decides to reserve for. It's a financial planning tool, and Florida law has long required associations to include reserve items in the annual budget under Fla. Stat. 718.112(2)(f), though boards could vote to waive full funding [3]. A Structural Integrity Reserve Study is narrower and mandatory. SIRS covers a fixed list of structural components set by statute (roof, load-bearing walls, floor, foundation, fireproofing, electrical wiring, plumbing, waterproofing, and windows/exterior doors, among others), must be performed or supervised by a licensed engineer or architect, and cannot be waived once the SIRS is complete [3]. If you want the mechanics laid out in more detail, see our guide to reserve studies and the SIRS-specific breakdown.
What is a reserve study for an HOA, and does SB 4-D apply to HOAs?
For a homeowners association (single-family homes, townhomes with separately owned structures), a reserve study works the same way conceptually: an inspector or reserve specialist estimates the remaining life and replacement cost of shared assets like roads, clubhouses, pools, and gates, and recommends annual contributions. Here's the part that trips people up: SB 4-D's milestone inspection and SIRS mandates apply to condominiums and cooperatives regulated under Chapters 718 and 719, not to homeowners associations under Chapter 720. An HOA with a 3-story building generally isn't swept into the SIRS requirement unless the structure is legally a condominium. Florida does require HOAs to disclose reserve funding status in their budgets under Fla. Stat. 720.303(6), but there's no forced structural reserve study parallel to SIRS for standard HOAs [4]. If your community has both condo buildings and HOA-governed homes (common in larger master-planned developments), only the condo buildings 3 stories and higher fall under SB 4-D. Confirm with your association's counsel which chapter actually governs your structure, because the label on your community isn't always the legal answer.
Which buildings must comply, and by what deadline?
SB 4-D applies to condominium and cooperative buildings that are 3 stories or more in height, regardless of age, once they reach the 25-year or 30-year mark depending on distance from the coast. Milestone inspections (a separate but related requirement) are due at 30 years for most buildings and 25 years for buildings within 3 miles of the coastline, under Fla. Stat. 553.899, with recertification every 10 years after [5]. SIRS is a separate deadline. The statute originally set December 31, 2024 as the date associations had to complete their first SIRS, and that date held even as other pieces of the law shifted. Associations that missed it are still required to complete one; the deadline passing doesn't remove the obligation, it just means the association is out of compliance and needs to move fast [3]. Buildings under 3 stories, single-family detached homes, and most townhomes with individually owned structures are excluded from SIRS. Timeshares are also excluded under the statute's definitions section.
What does a SIRS actually cover, and how is it different from a milestone inspection?
| Purpose | Confirm current structural safety | Plan future reserve funding | |
|---|---|---|---|
| Trigger | 30 yrs (25 yrs if coastal, within 3 miles) | Every association, 3+ stories | |
| Who performs it | Licensed architect/engineer | Licensed engineer or architect | |
| Repeats | Every 10 years | Every 10 years | |
| Waivable | No | No (reserve funding portion can't be waived) | Boards handling both at once should treat them as connected but distinct deliverables. Our milestone inspections coverage and SIRS guides go deeper on scheduling both without duplicating engineer visits. |
A milestone inspection is a visual structural and life-safety check, done by a licensed architect or engineer, that produces a report on the building's structural condition, phase one first and a more invasive phase two if problems are found. It's a snapshot: is the building structurally sound right now. SIRS is forward-looking. It takes the same category of structural components and asks a different question: how much life is left in each one, and how much cash does the association need to save annually so it can pay for the eventual repair or replacement without a surprise special assessment. Fla. Stat. 553.899(4) lists the required components: roof, load-bearing walls or other primary structural members, floor, foundation, fireproofing and fire protection systems, plumbing, electrical systems, waterproofing and exterior painting, and windows and exterior doors [5]. | Feature | Milestone inspection | SIRS |
How much should an HOA (or condo) have in reserves?
There's no single dollar figure or percentage that Florida law sets as "correct." The honest answer is: enough to fully fund the replacement cost of each reserve component by the time it reaches the end of its useful life, based on the component's current age, condition, and replacement cost as determined by the reserve study or SIRS. For SIRS components specifically, associations can no longer vote to underfund or waive reserves once the first SIRS is complete, per Fla. Stat. 718.112(2)(f)2. That means the reserve line items for roof, structure, plumbing, and the rest of the SIRS list must be funded at whatever level the study calculates, full stop, starting with the fiscal year following the study [3]. For non-SIRS reserve items (things like repaving a parking lot or repainting common area interiors), the association can still vote to waive or reduce funding, unless the declaration says otherwise. A rough industry rule of thumb some reserve specialists use is that healthy reserves should be funded to at least 70% of the fully-funded level, but that's a planning guideline from reserve study practice, not a Florida statutory threshold, and nobody should treat it as a legal minimum.
How much does a reserve study or SIRS cost?
Costs vary a lot by building size, age, and how many structural systems need testing. Florida licensed engineering firms and reserve specialists have quoted ranges anywhere from roughly $3,000 for a small, straightforward building to $20,000 or more for a large, older, or structurally complex property, though DBPR does not publish a fee schedule and there's no statewide price cap. A milestone inspection, done separately, tends to run in a similar range for phase one, with phase two (if triggered by visible distress) costing significantly more because it involves invasive testing like core sampling or exposing rebar. Boards sometimes bundle both engagements with the same engineering firm to save on mobilization costs, though the two reports serve different legal purposes and shouldn't be treated as interchangeable paperwork. Getting several bids matters here more than almost anywhere else in association budgeting, because the spread between the cheapest and most thorough proposal can be thousands of dollars, and a rushed or shallow SIRS can undercount replacement costs, which then understates the reserve contribution the board is legally locked into.
What is an HOA assessment, and how is it different from a special assessment?
A regular (or "normal") assessment is the routine fee every owner pays, usually monthly or quarterly, that funds operating expenses and reserve contributions as set out in the annual budget. It's predictable and budgeted in advance. A special assessment is a one-time (or limited-duration) charge the board levies outside the normal budget, usually because reserves fell short of an unexpected or under-funded cost, like a storm-damaged roof, a failed elevator, or a structural repair flagged by a milestone inspection or SIRS. Florida law lets boards levy special assessments without a full membership vote in most condo associations, subject to notice requirements under Fla. Stat. 718.112(2)(c), though the specific approval threshold depends on the association's declaration and bylaws [3]. SB 4-D's SIRS mandate exists specifically to shrink the odds of large special assessments blindsiding owners. If reserves are properly funded years ahead of a roof or plumbing failure, the money is already there instead of arriving as a $15,000 bill on one owner's doorstep. For the full mechanics of levying and challenging one, see HOA special assessment and how special assessment insurance sometimes softens the blow.
Are HOA or condo special assessments tax deductible?
For most owners, no, not directly. Special assessments used for capital improvements or major repairs are generally treated by the IRS the same way as the underlying property, meaning they typically add to the owner's cost basis in the unit rather than being deducted as a current expense. The IRS doesn't publish condo-specific guidance by statute number, but its general rule on capital improvements versus repairs (IRS Publication 523, Selling Your Home) treats special assessments for improvements as additions to basis, which can reduce capital gains tax when the unit is eventually sold, not an annual deduction [6]. There's a narrow exception: if a unit is used as a rental property, some portion of assessments tied to repairs (not improvements) may be deductible as a business expense in the year paid, and depreciation rules can apply to the capital-improvement portion over time. That distinction between "repair" and "improvement" is exactly the kind of judgment call that belongs to a CPA, not a board member, so anyone facing a large special assessment should talk to a tax professional before assuming either way.
What happens if a board doesn't complete SIRS or the milestone inspection on time?
There's no single statewide fine schedule written into the statute for missing SIRS, but the practical consequences are serious. Local building officials enforce milestone inspection deadlines and can require the association to submit a repair plan or, in worst cases, deem the building unsafe for occupancy under local code enforcement authority tied to Fla. Stat. 553.899 [5]. Missing SIRS doesn't erase the underlying obligation to fund SIRS components; the association still owes full funding once the study is done, it's just later than the law intended, which usually means a bigger catch-up contribution or a special assessment to cover the gap. Buyers and lenders are also increasingly asking for SIRS and milestone documentation before closing, so an association without current reports may see financing complications for unit sales, even without a government fine. Boards that are behind should get a signed engagement letter with a licensed engineer or architect on the calendar immediately, document the delay and reason in board minutes, and communicate the timeline to owners in writing. Waiting quietly rarely goes well once a lender or a state investigation asks for the paperwork.
How does the 25-year vs. 30-year coastal rule actually work?
Fla. Stat. 553.899 sets the standard milestone inspection trigger at 30 years from the building's certificate of occupancy date, then every 10 years after. Buildings located within 3 miles of the coastline get the earlier 25-year trigger, because salt air and moisture accelerate corrosion of rebar and structural steel [5]. The "3 miles from the coastline" measurement is based on the state's coastal construction control line mapping, and local building departments make the actual determination for a specific address, so boards in gray-zone areas (barrier islands, intracoastal waterfront, inland canals near the coast) should confirm with their county building department rather than guessing from a straight-line map distance. Buildings that received their certificate of occupancy before July 1, 1992 had a compressed transition deadline (by December 31, 2024, for buildings that were already past their 30-year or 25-year mark) written into the phase-in schedule the legislature set when the law first passed. If your building predates that cutoff and hasn't had its first milestone inspection yet, treat it as already overdue and call your county building official this week.
How should a board actually get organized around these deadlines?
Start with the two documents every board needs on file: the milestone inspection report (or proof one is scheduled) and the SIRS report, both signed by a Florida-licensed engineer or architect. From there, the board's job is to fold the SIRS-mandated reserve numbers into the annual budget, notify owners of the new (likely higher) contribution levels, and keep a paper trail showing the association acted in good faith on the statutory timeline. A lot of boards underestimate how much coordination this takes: scheduling the engineer, getting multiple bids, running the numbers by the treasurer, drafting the budget notice, and documenting board votes, all against a hard external deadline nobody controls. That's the exact gap our $199 one-time Building-Specific Board Compliance Kit is built for: it organizes the SIRS and milestone timeline for your building's age and coastal zone, tracks what documentation you already have versus what's missing, and gives the board a communication template for owners. It doesn't perform the inspection or the study; that has to be a licensed engineer or architect under the statute. It just keeps the board from losing track of what's due and when. You can build one at /board-kit-builder. Whatever tool or system a board uses, the sequence matters: get the milestone inspection and SIRS done by licensed professionals first, then let those reports drive the budget and reserve line items, not the other way around.
Where can boards get help interpreting their specific documents?
Nothing here should be read as a legal opinion about a specific building or declaration. Chapter 718 sets the statewide floor, but individual condo declarations sometimes layer additional reserve or inspection requirements on top, and only the association's own counsel can tell a board how the two interact for that specific building. DBPR's Division of Florida Condominiums, Timeshares, and Mobile Homes regulates condo associations and publishes licensing information for community association managers, though it does not certify individual SIRS or milestone reports; that certification authority sits with the licensed engineer or architect who signs the report [7]. For questions about whether a specific building falls under the 25-year or 30-year track, the county building department is the authority, not the state agency. Boards should also check our reserve fund relief coverage for the narrow financing and phase-in accommodations the legislature has passed for associations struggling to meet full SIRS funding right away, and our HOA reserve study explainer if the same community includes non-condo structures with different rules.
Frequently asked questions
What is a reserve study?
A reserve study is a professional assessment of a building's major shared components, estimating each one's remaining useful life and replacement cost, then calculating the annual savings needed so the association has cash on hand when replacement comes due. In Florida condos, a Structural Integrity Reserve Study (SIRS) is a mandatory, narrower version covering specific structural components under Fla. Stat. 553.899.
What is a reserve study for an HOA?
For an HOA, a reserve study evaluates shared community assets like roads, clubhouses, pools, and roofs on common buildings, estimating replacement costs and recommending annual contributions. Unlike condo SIRS, Florida doesn't mandate a specific structural reserve study format for standard HOAs under Chapter 720, though budget disclosure of reserve funding status is required.
What is an HOA assessment?
An HOA assessment is the fee owners pay to fund the association's operating budget and reserves, usually charged monthly or quarterly as a regular assessment. A special assessment is a separate, one-time charge levied outside the normal budget to cover an unexpected or underfunded cost, such as storm damage or a structural repair.
How much should an HOA have in reserves?
There's no single statutory dollar figure. The target is full funding: enough saved to cover each component's replacement cost by the end of its useful life, per the reserve study's calculations. Some reserve specialists use 70% funded as a rough health benchmark, but that's industry practice, not a Florida legal minimum.
How much does a reserve study cost in Florida?
Costs typically range from about $3,000 for a small, simple building to $20,000 or more for large or structurally complex properties, though DBPR doesn't publish a statewide fee schedule. Getting multiple bids from licensed engineers or reserve specialists is the best way to gauge a fair price for your specific building.
Are HOA or condo special assessments tax deductible?
Generally no. Special assessments for capital improvements typically add to the owner's cost basis rather than being deducted currently, per IRS guidance on capital improvements in Publication 523. Rental property owners may deduct a repair-related portion in some cases. Talk to a CPA before assuming either treatment applies to your situation.
Does SB 4-D apply to buildings under 3 stories?
No. Florida's milestone inspection and SIRS requirements under Fla. Stat. 553.899 apply specifically to condominium and cooperative buildings 3 stories or more in height. Buildings under 3 stories are excluded from both mandates, though associations can still choose to do voluntary reserve studies.
When was the SIRS deadline for existing Florida condo buildings?
The statutory deadline for completing an association's first Structural Integrity Reserve Study was December 31, 2024. Associations that missed that date are still legally required to complete one; the obligation doesn't disappear, and the SIRS-mandated full reserve funding still applies once the study is done.
What's the difference between a milestone inspection and a SIRS?
A milestone inspection checks current structural safety and is triggered at 30 years (or 25 years if within 3 miles of the coast). A SIRS looks forward, estimating remaining life and reserve funding needs for structural components. Both are required for condo buildings 3+ stories and repeat every 10 years.
Can a Florida condo association still waive reserve funding?
Only for non-SIRS reserve items. Once an association completes its first SIRS, funding for SIRS-listed components (roof, structure, plumbing, and similar) can no longer be waived or reduced by owner vote under Fla. Stat. 718.112(2)(f)2. Non-SIRS reserve items can still be waived unless the declaration says otherwise.
Who can legally perform a Florida SIRS or milestone inspection?
Only a Florida-licensed engineer or architect can perform or supervise a milestone inspection or SIRS under Fla. Stat. 553.899 and 718.112. Boards, management companies, and compliance tools can schedule, track, and organize the process, but the inspection and study itself must be signed by a licensed professional.
Does SB 4-D apply to homeowners associations (HOAs)?
Generally no. SB 4-D's milestone inspection and SIRS mandates apply to condominiums and cooperatives under Chapters 718 and 719. Standard HOAs under Chapter 720 aren't required to complete a SIRS, though any condominium-style building within an HOA community that meets the height and age threshold would still be covered.
Sources
- Florida Senate, SB 4-D (2022) Building Safety: SB 4-D was passed in a May 2022 special session establishing milestone inspection and SIRS requirements
- Florida Senate, SB 154 (2023): The 2023 legislature amended SB 4-D's original deadlines and reserve funding rules
- Florida Statutes 718.112: Condo association budgets must include reserves, and special assessment notice requirements are set under this section
- Florida Statutes 720.303(6): HOAs must disclose reserve funding status in annual budgets under Chapter 720
- Florida Statutes 553.899: Milestone inspections are required at 30 years (25 years if within 3 miles of the coast) and every 10 years after
- IRS Publication 523, Selling Your Home: Special assessments for capital improvements generally add to an owner's cost basis rather than being currently deductible
- DBPR, Community Association Manager Licensing: DBPR licenses community association managers and regulates condo association compliance oversight