Last updated 2026-08-14
TL;DR
SB 4-D (2022) rewrote Florida condo law to require milestone inspections and a Structural Integrity Reserve Study (SIRS) for condos 3+ stories. SIRS reserves for specific structural components cannot be waived or underfunded starting with fiscal year 2025 budgets. A typical SIRS costs $5,000 to $15,000+ depending on building size, per industry estimates cited by DBPR guidance.
What is SB 4-D and what does it actually require?
SB 4-D is the shorthand everyone uses for the Florida law passed in May 2022, officially the Building Safety Act, in direct response to the Champlain Towers South collapse in Surfside that killed 98 people in June 2021. It amended Chapter 718 of the Florida Statutes, the Condominium Act, and it did two big things: it created a statewide milestone inspection requirement for buildings 3 stories or taller, and it created a new type of mandatory reserve study called a Structural Integrity Reserve Study, or SIRS. The law itself is codified mainly at Florida Statutes section 718.112(2)(g), which governs reserves, and section 553.899, which governs milestone inspections [1][2]. A follow-up bill, SB 154, passed in 2023 and adjusted some deadlines and definitions, so when people say "SB 4-D" today they usually mean the combined package as it now reads in the statute, not the original 2022 text word for word. For board members, the practical upshot is this: you can no longer vote to waive or reduce reserves for the structural items the SIRS covers, and you have to get that SIRS done by a qualified professional on a specific timeline. This is very different from Florida's old reserve rules, where owners could vote every year to underfund or fully waive reserves for almost anything.
What is a reserve study?
A reserve study is a professional evaluation of a building's major shared components (roof, painting, paving, structural elements, plumbing, and so on) that estimates each component's remaining useful life and the cost to repair or replace it, then calculates how much money the association should be setting aside each year to cover those future costs without a surprise special assessment. A standard reserve study has two parts: a physical analysis (someone inspects the property and estimates condition and remaining life for each component) and a financial analysis (a funding plan that spreads the cost over time, either "straight-line" or "pooled" cash-flow methods, so members pay predictably instead of getting hit with a lump-sum bill). Florida's SIRS is a specific, narrower version of this concept, focused only on structural load-bearing components and life-safety-adjacent building systems, not the full menu of amenities a normal HOA reserve study might cover (pools, tennis courts, playground equipment). See our reserve study guide for the general mechanics if your association isn't a condo covered by SIRS.
What does a Structural Integrity Reserve Study (SIRS) have to cover?
Under Florida Statutes 718.112(2)(g), a SIRS must be based on a visual inspection performed by a licensed engineer or architect, and it must include, at minimum, reserve calculations for these specific components if they exist on the building [1]: - Roof
- Load-bearing walls or other primary structural members
- Floor
- Foundation
- Fireproofing and fire protection systems
- Plumbing
- Electrical systems
- Waterproofing and exterior painting
- Windows and exterior doors
- Any other item that has a deferred maintenance expense or replacement cost exceeding $10,000 and that the study's inspector recommends including The statute is explicit that "the association must have a structural integrity reserve study completed at least every 10 years" for each building on the condominium property that is 3 stories or more in height [1]. The study has to include an estimated remaining useful life and estimated replacement cost or deferred maintenance cost for each listed item, and it has to state the association's current reserve balance for that item relative to what's actually needed. This is narrower than a full amenity reserve study. A SIRS doesn't require reserve funding for things like clubhouse furniture, landscaping, or a pool deck's cosmetic finish, unless those cross the $10,000 threshold and the inspector flags them.
Which buildings does SIRS apply to, and when is it due?
SIRS applies to condominium associations with at least one building that is 3 stories or higher, regardless of distance from the coast. HOAs (non-condo homeowner associations) are not covered by SIRS; that's a common point of confusion since SB 4-D is specifically a condominium law under Chapter 718, not Chapter 720 (which governs most HOAs). The first SIRS deadline for buildings that reached their milestone inspection threshold (generally 25 years from certificate of occupancy, or 30 years if not within 3 miles of the coast, with recertification every 10 years after) was tied to December 31, 2024, in the original statute, but SB 154 (2023) pushed some association reporting and compliance mechanics and clarified timing. Associations should confirm their specific SIRS deadline with counsel, because the interaction between a building's age, its milestone inspection date, and the SIRS 10-year cycle is genuinely fact-specific per building [2][3]. Once a SIRS is done, it has to be updated at least every 10 years, and DBPR (the Florida Department of Business and Professional Regulation, which regulates community associations) has published guidance and FAQs on the requirement that boards should check directly for current interpretation [4].
What is an HOA assessment, and how is it different from a condo assessment?
An assessment is the fee a community association charges its members to fund shared expenses, either the regular annual or monthly operating budget (routine assessments) or a one-time extra charge to cover a specific large expense the reserve fund doesn't cover (a special assessment). Both condos and HOAs use this basic structure, but the statutes differ: condos fall under Chapter 718, most single-family-home HOAs fall under Chapter 720. Regular assessments typically cover landscaping, insurance, management fees, utilities for common areas, and reserve contributions. Special assessments come up when there's a shortfall, an unexpected repair (a burst pipe, storm damage, a failed roof), or in the SIRS context, when a structural reserve study reveals the association hasn't saved nearly enough and a state-mandated repair is coming due. For a deeper explanation of how special assessments get triggered and voted on, see our guide to HOA special assessments. If your building is a condo bracing for a SIRS-driven assessment, our condo special assessment insurance piece covers how insurance interacts with that cost.
How much should an HOA or condo have in reserves?
There's no single dollar figure that's right for every building, because it depends entirely on the age, size, and condition of the components you're reserving for. The right benchmark isn't a flat percentage of the budget; it's whether your reserve balance, divided by the total estimated replacement cost of all reserve components, is tracking close to 100% "funded" for where each item is in its life cycle. Industry reserve specialists (through organizations like the Community Associations Institute) generally describe a reserve fund that's below 30% funded as "weak" and at real risk of needing a special assessment, while a fund above 70% funded is considered "strong." Florida law doesn't set a required funding percentage; it requires, post-SB 4-D, that structural components covered by SIRS be funded at the level the study calculates, with no board or membership vote allowed to waive or reduce that specific structural reserve line starting with the fiscal year 2025 budget cycle [1]. That's the real teeth of SB 4-D: prior to this law, Florida condo boards or a majority of unit owners could vote annually to waive reserves entirely. That option is gone for the SIRS-designated structural components. Non-structural reserve items (landscaping, painting outside the SIRS list, amenities) can still potentially be waived by membership vote depending on your documents and current law, so confirm the current waiver rules with counsel since this is an area the legislature keeps adjusting.
How much does a reserve study or SIRS cost?
| Full SIRS (condo, 3+ stories) | $5,000 to $15,000+ | Licensed engineer or architect | Every 10 years, mandatory | |
|---|---|---|---|---|
| Milestone inspection (Phase 1) | Often $5,000 to $20,000+ depending on size | Licensed engineer or architect | At 25 or 30 years, then every 10 years | |
| General HOA reserve study | $1,000 to $3,000 (smaller communities) | Reserve specialist (engineer not always required) | Every 3 to 5 years is common practice | These are planning ranges, not quotes. Get at least two or three bids from Florida-licensed engineers or architects, since SB 4-D requires the SIRS inspection component specifically be done by a licensed professional, not a generalist reserve consultant [1]. |
Cost varies with building size, number of components inspected, and whether it's a first-time study or an update. Based on ranges reported by engineering and reserve-study firms and referenced in state guidance discussions, a SIRS for a mid-size condo building commonly runs from roughly $5,000 to $15,000 or more, with larger or more complex high-rises costing more because of the added engineering time and component count [4][5]. A general (non-SIRS) full reserve study for a smaller HOA, covering a broader but shallower set of components without a licensed engineer's structural sign-off, often costs less, sometimes in the $1,000 to $3,000 range for a straightforward community, though this varies a lot by state, region, and provider. Here's a rough comparison to set expectations: | Study type | Typical cost range | Who performs it | Update frequency |
How does a milestone inspection relate to the SIRS?
The milestone inspection and the SIRS are two separate but related requirements, and boards sometimes conflate them. The milestone inspection under Florida Statutes 553.899 is a structural safety check: a licensed engineer or architect physically inspects the building and issues a report on structural condition, due at 25 years from certificate of occupancy (30 years if the building is more than 3 miles from the coastline), and every 10 years after [2]. The SIRS is a financial planning document built on similar inspection work, but its purpose is calculating how much money needs to be in reserves, not certifying the building is currently safe. In practice, many associations hire the same engineering firm to do both at roughly the same time, since a lot of the physical inspection work overlaps, but they are legally distinct deliverables with distinct statutory citations. If your building just went through, or is approaching, its milestone inspection, that's the moment to also line up your SIRS, because the engineer is already on site and the timing pressure from owners tends to be highest right after a milestone report comes back with a repair list. For general timeline planning across both requirements, see our milestone inspections hub content and our piece on reserve study for condo associations.
Are HOA or condo special assessments tax deductible?
For most owners, a special assessment paid to your association is not tax deductible in the way a mortgage interest payment or property tax bill is. The IRS generally treats special assessments for capital improvements (a new roof, structural repairs, elevator replacement) as an addition to your cost basis in the property, not a deductible expense, which matters when you sell and calculate capital gain, but doesn't reduce your taxable income the year you pay it. There are narrow exceptions. If you rent out the unit as investment property, a portion of assessments tied to repairs (as opposed to capital improvements) may be deductible as a rental expense, and capital-improvement assessments on a rental can typically be depreciated over time rather than deducted immediately. The line between a "repair" and a "capital improvement" for tax purposes is a real distinction with real IRS guidance (see IRS Publication 527 for residential rental property rules), and it's fact-specific enough that owners should talk to a CPA rather than rely on a board's characterization of the assessment. This isn't something your association or its management company can rule on for you individually; it depends on your own tax situation, whether the unit is a primary residence, a rental, or held in an entity, so a licensed tax preparer is the right resource, not this article or your board.
What happens if a board doesn't get the SIRS done on time?
Florida law puts direct legal exposure on boards that ignore SIRS or milestone requirements. Chapter 718 gives DBPR's Division of Florida Condominiums, Timeshares, and Mobile Homes authority to investigate complaints and take enforcement action against associations that fail to comply with statutory reserve and inspection requirements [4]. Beyond regulatory risk, failing to complete a required SIRS or milestone inspection creates real liability exposure for board members individually if a structural failure occurs afterward and it comes out the association skipped a legally required study. There's also a practical market consequence that's become a bigger story than the legal one: lenders (including many that sell loans to Fannie Mae and Freddie Mac) have tightened condo lending standards specifically around SIRS and reserve compliance, so a building that's behind on its SIRS can find unit sales stalling because buyers can't get financing. That's pushed a lot of boards to move faster than the bare statutory deadline requires, just to keep the building's units sellable. A $199 Building-Specific Board Compliance Kit can help a board organize its milestone inspection and SIRS deadlines, track which components still need engineer sign-off, and keep owners informed on timeline, but it doesn't replace the licensed engineer or architect the statute requires to actually perform the inspection and calculations. No kit, checklist, or software can substitute for that license.
Can an association still waive or reduce SIRS reserves?
No, not for the components the SIRS covers. This is the single biggest change SB 4-D made to Florida condo law. Before 2022, condo boards and unit owners could vote annually, by majority, to waive reserve funding entirely or fund it at a reduced level, for essentially any category. SB 4-D removed that option specifically for SIRS structural components starting with the association's first budget adopted on or after December 31, 2024 [1][3]. The statute states that reserves for items included in a SIRS "may not be waived or reduced" and must be funded based on the study's findings [1]. Non-SIRS reserve items (things like a clubhouse roof if it's a separate small structure not part of the 3-story building, recreational amenities, and similar cosmetic items) may still be subject to waiver votes under other parts of 718.112, but that's a narrower carve-out than it used to be, and the interaction between old waiver provisions and the new SIRS mandate is exactly the kind of thing that's been refined by follow-up legislation like SB 154. Confirm current waiver mechanics with your association's counsel, since this is one of the more actively litigated and legislated corners of Chapter 718 right now. If your board is trying to figure out what relief options do still exist (payment plans, phased funding, or state programs), our piece on Florida condo reserve fund relief covers what's actually been proposed and passed versus what's just been discussed in Tallahassee.
Frequently asked questions
What is a reserve study?
A reserve study is a professional assessment of a building's major shared components (roofs, plumbing, structural elements, paving) that estimates their remaining life and future repair or replacement cost, then sets a savings schedule so the association can pay for those costs without a surprise special assessment.
What is a reserve study for an HOA?
For a non-condo HOA, a reserve study covers whatever major common-area assets the association owns and maintains, often clubhouses, pools, roads, and irrigation systems, and calculates annual reserve contributions. Florida's SIRS mandate under Chapter 718 does not apply to most HOAs; that's specific to condominium buildings 3 stories or taller.
What is an HOA assessment?
An HOA assessment is the fee members pay to fund shared community expenses, either recurring (monthly or annual dues covering operating costs and reserves) or a special assessment, a one-time charge to cover an unexpected or underfunded major expense not covered by regular dues.
How much should an HOA have in reserves?
There's no universal dollar amount; the better measure is percent funded, meaning current reserve balance divided by the ideal balance given each component's age and remaining life. Reserve specialists generally consider under 30% funded weak and over 70% funded strong, though Florida law only mandates specific funding levels for SIRS structural components in condos.
How much does a reserve study cost in Florida?
A full Structural Integrity Reserve Study for a condo building typically costs $5,000 to $15,000 or more depending on size and complexity, per industry cost ranges cited in DBPR-related guidance. General (non-SIRS) reserve studies for smaller HOAs often run $1,000 to $3,000, though pricing varies by region and provider.
Are HOA special assessments tax deductible?
Generally no, for a primary residence. The IRS typically treats special assessments for capital improvements as additions to your property's cost basis rather than a deductible expense. Rental property owners may deduct or depreciate a portion depending on repair versus capital-improvement classification; consult a CPA for your specific situation.
What buildings does Florida's SIRS requirement apply to?
SIRS applies to condominium associations with at least one building 3 stories or taller, under Florida Statutes 718.112(2)(g). It does not apply to most single-family HOAs, which fall under Chapter 720, not Chapter 718.
What's the difference between a milestone inspection and a SIRS?
A milestone inspection (Florida Statutes 553.899) is a structural safety report from a licensed engineer or architect, due at 25 or 30 years and every 10 years after. A SIRS is a reserve-funding calculation, also based on professional inspection, that determines how much money the association must save for structural components. They're separate deliverables often done together.
Can a condo association still waive SIRS reserves in Florida?
No. Since SB 4-D took effect, associations cannot waive or reduce reserve funding for the specific structural components a SIRS identifies, starting with budgets adopted for fiscal year 2025 and after. This is a firm change from prior law, where members could vote annually to waive reserves broadly.
What components must a Florida SIRS cover?
At minimum: roof, load-bearing walls and primary structural members, floor, foundation, fireproofing and fire protection systems, plumbing, electrical systems, waterproofing and exterior painting, and windows and exterior doors, plus any other item with deferred maintenance or replacement cost over $10,000 that the inspecting engineer flags.
Who can perform a SIRS in Florida?
The visual inspection portion must be performed by a licensed engineer or architect, per Florida Statutes 718.112(2)(g). Reserve specialists or management companies can assist with the financial planning components, but the structural inspection itself requires the specific professional license the statute names.
What happens if a Florida condo board misses its SIRS deadline?
The association risks regulatory action from DBPR's condominium division, increased liability exposure for board members if a structural issue later arises, and practical problems: many lenders now require SIRS and milestone compliance documentation before approving condo unit loans, so overdue buildings can see sales and refinancing stall.
Sources
- Online Sunshine (Florida Legislature), Florida Statutes section 718.112: SIRS component list, 10-year study cycle, $10,000 threshold, and prohibition on waiving structural reserves
- Online Sunshine (Florida Legislature), Florida Statutes section 553.899: Milestone inspection requirement, 25/30-year and 10-year recertification timeline
- Florida Senate, SB 154 (2023) bill text and analysis: 2023 amendments adjusting SB 4-D deadlines and SIRS/milestone mechanics
- Florida DBPR, Division of Florida Condominiums, Timeshares, and Mobile Homes, Structural Integrity Reserve Study FAQ: State regulatory oversight and complaint/enforcement authority for condo reserve and inspection compliance
- Florida Senate, Bill Analysis and Fiscal Impact Statement, SB 4-D (2022): Original 2022 SB 4-D legislative text creating SIRS and milestone inspection requirements
- IRS Publication 527, Residential Rental Property: Tax treatment of repairs versus capital improvements for rental property owners, including special assessments