Last updated 2026-07-24
TL;DR
A condominium reserve study is a professional evaluation of a building's major components (roof, structure, plumbing, paving) that estimates remaining life and future repair costs, so the association can fund reserves properly. Florida requires a Structural Integrity Reserve Study (SIRS) for buildings 3+ stories, with the first one due by December 31, 2024 for most associations under Fla. Stat. 718.112 [1].
What is a reserve study?
A reserve study is a physical inspection and financial analysis performed by a qualified professional (often an engineer, sometimes a reserve specialist) that catalogs the major components of a property, like the roof, exterior paint, pavement, pool equipment, and structural elements, then estimates two things: how many years each component has left, and what it will cost to repair or replace it when that time comes. The output is normally two parts. First, a physical analysis: a list of components, their condition, and their expected remaining useful life. Second, a funding plan: a schedule showing how much the association should be setting aside each year so the money is there when the roof needs replacing in year 12 or the pool deck needs resurfacing in year 8. For Florida condos, the state-mandated version of this is called a Structural Integrity Reserve Study, or SIRS. It's narrower than a full reserve study in some ways (it focuses on specific structural components listed in statute) but it carries legal weight that a voluntary reserve study doesn't. [1] More on that distinction below. A reserve study is not the same document as a milestone inspection, though the two often get confused. A milestone inspection is a structural safety check tied to building age. A reserve study is a financial planning tool. Florida's SIRS actually borrows data from a milestone inspection when one has been done, but they answer different questions: is the building safe right now, versus how do we pay for what's coming.
What is a reserve study for an HOA?
For a homeowners association, a reserve study works the same way conceptually, but the legal requirements differ from condos. Florida's SIRS mandate under Fla. Stat. 718.112 applies specifically to condominium associations, not single-family HOAs. [1] Florida's separate homeowners association statute, chapter 720, has its own reserve disclosure and funding rules but does not currently impose the same structural inspection requirement as the condo statute. That said, plenty of HOAs, especially those with condo-like buildings, clubhouses, or shared structural elements (attached townhomes, for example) get voluntary reserve studies anyway, because the math doesn't change based on which statute governs you. A roof still needs replacing in 20 to 25 years whether you're condo or HOA. The reserve study is what tells the board when that bill is coming and how to spread the cost so it isn't a shock. If you sit on an HOA board, the honest answer is: check chapter 720 and your declaration for what's legally required, but treat a reserve study as best practice regardless. Boards that skip it tend to discover the true cost of deferred maintenance the hard way, usually via a special assessment nobody budgeted for.
How much does a reserve study cost?
| Building height / story count | Taller buildings need more structural inspection points, raising cost | |
|---|---|---|
| Age of building | Older buildings (pre-1990s especially) often need more destructive or invasive testing | |
| Number of prior reports available | Existing milestone inspection or engineering reports can lower SIRS cost | |
| Coastal exposure | Salt air corrosion inspection adds scope and cost | |
| Full reserve study vs. SIRS only | A full study covering all components (more than structural) costs more than a SIRS alone | Boards should get at least two or three proposals from licensed engineers or qualified reserve preparers, and ask specifically whether the quote includes a visual-only inspection or invasive testing (probes, core samples), since that's the single biggest swing factor in both cost and thoroughness. |
Costs vary a lot based on building size, number of components, and whether it's a full reserve study or the narrower SIRS. Industry pricing commonly falls in the range of roughly $3 to $5+ per unit for a basic study on a straightforward property, though condominium associations with older buildings, more complex structural elements, or first-time SIRS studies (with no prior engineering reports to draw from) often see materially higher per-unit costs. There's no single authoritative national price list, and Florida's DBPR does not publish fee schedules for reserve study or SIRS providers, so any number you're quoted should be treated as a market estimate, not a regulated fee. [2] A few cost drivers worth knowing before you get quotes: | Factor | Effect on cost |
What is a SIRS and how is it different from a regular reserve study?
A Structural Integrity Reserve Study, or SIRS, is Florida's statutory version of a reserve study, created after the 2021 Surfside collapse and formalized by SB 4-D and later amendments. It's required for condominium buildings three stories or more in height, and it must be performed by a licensed engineer or architect. [1] [3] Florida Statute 718.112(2)(g) requires the SIRS to address at minimum: roof, structure (including load-bearing walls), fireproofing and fire protection systems, plumbing, electrical systems, waterproofing and exterior painting, windows and doors, and "any other item that has a deferred maintenance expense or replacement cost that exceeds $10,000 and the failure to replace or maintain such item negatively affects the items listed." [1] The statute states associations must have a SIRS completed "at least every 10 years after the condominium's creation" for each building on the condominium property that is three stories or higher, and the first SIRS deadline for existing buildings was December 31, 2024. [1] A regular voluntary reserve study, by contrast, has no legal deadline, no mandated component list, and no requirement that a licensed engineer perform it; a reserve specialist or even the association's own financial team could theoretically build one. That flexibility is exactly why it doesn't satisfy the SIRS requirement on its own.
How much should an HOA (or condo) have in reserves?
There's no single dollar figure that's right for every property, because it depends entirely on what components you have, their age, and their replacement cost. The honest framework is: reserves should track the funding plan generated by the reserve study or SIRS, not an arbitrary percentage or flat number. That said, under Florida's SIRS law, once a study is completed, the association loses the ability to waive or reduce funding for the specific structural components covered by the SIRS. Fla. Stat. 718.112(2)(f) states that reserve funds for items covered by a SIRS "may not be waived or reduced" by membership vote once the SIRS has been done. [1] That's a big shift from the old rules, where condo boards could vote annually to underfund or skip reserves entirely for any component. For components outside the SIRS list (things like landscaping or minor common-area equipment), Florida law still allows boards more flexibility, but chapter 718 generally directs that reserve schedules be based on the useful life and replacement cost of each item. [1] Practically, most reserve specialists suggest a fully-funded reserve target, meaning the association's reserve balance matches the theoretical value of "used up" component life at any given point. Underfunding relative to that target is common (surveys of association finances routinely find many communities reserve well below 100% funded), but SIRS-covered structural items in Florida no longer give boards the legal option to underfund on purpose. See our reserve study breakdown for how funding percentages are typically calculated and what "fully funded" versus "pooled" funding methods mean in practice.
What is an HOA assessment, and what is a special assessment?
An HOA (or condo) assessment is simply the fee members pay to the association to cover shared expenses. Regular assessments cover ongoing operating costs (insurance, landscaping, management fees) and reserve contributions. A special assessment is a separate, often one-time charge levied when the regular budget and reserves can't cover an unexpected or large expense, like a roof replacement that arrives before enough reserve funding has accumulated, or storm damage above what insurance covers. Special assessments are exactly the outcome that reserve studies and SIRS compliance are designed to prevent, or at least soften. A reserve study tells the board years in advance that the roof needs $400,000 in reserve funding by year 15; if the board follows the plan, the money is already there. If the board skipped funding, ignored the study, or never had one, the only option left when the roof fails is a special assessment, often demanding thousands of dollars per unit within a short payment window. Florida's SIRS law was written partly in response to this pattern. Read our explainer on hoa special assessment rules and our guide to condo special assessment insurance if your board is facing one now.
Are HOA and condo special assessments tax deductible?
Generally, no, not for the individual unit owner, at least not as a straightforward deduction, and this is an area where owners should talk to a tax professional rather than rely on board guidance. The IRS treats special assessments for capital improvements (a new roof, structural repairs) as an addition to the owner's cost basis in the property, not a deductible expense in the year paid. That can reduce capital gains tax when the unit is eventually sold, but it isn't a current-year deduction. [4] There are narrow exceptions. If a unit is a rental property, special assessments tied to repairs and maintenance (rather than capital improvements) may be deductible as a business expense in the year incurred, subject to the usual repair-versus-improvement rules the IRS applies to any rental property. [4] If a special assessment is tied to a casualty loss, like storm damage in a federally declared disaster area, there may be a casualty loss deduction available, though the rules tightened significantly after the Tax Cuts and Jobs Act limited personal casualty loss deductions to federally declared disasters. [5] Boards shouldn't give individual owners tax advice on this. The honest answer to give owners who ask is: keep every notice, invoice, and assessment letter, and take it to a CPA, because the deductibility hinges on capital improvement versus repair classification and on the owner's personal tax situation (rental versus primary residence, itemizing versus standard deduction).
Who is required to perform a reserve study or SIRS in Florida?
For the statutory SIRS, Florida law requires the inspection be performed by a licensed engineer or architect. Fla. Stat. 718.112(2)(g) specifies the study must be based on a visual inspection performed by these licensed professionals. [1] DBPR's Division of Florida Condominiums, Timeshares, and Mobile Homes oversees condominium association compliance generally, though the SIRS inspection itself must come from the licensed engineer or architect, not from DBPR staff or from the association's management company. [2] For a voluntary, non-statutory reserve study covering non-structural components, associations have more flexibility. Many hire reserve study specialists (some hold credentials through organizations like the Community Associations Institute) who aren't necessarily licensed engineers, since the work is financial forecasting more than structural engineering. Boards should never let a management company or board member self-certify a SIRS. The statute is specific about licensure, and an improperly performed study could leave the association exposed if a component fails and the study is later challenged. Confirm current licensing requirements with your association's counsel, since DBPR guidance and statutory language can be updated.
What happens if a condo association skips its SIRS or reserve study?
Skipping a legally required SIRS puts the association out of compliance with Fla. Stat. 718.112, and the practical consequences tend to show up in a few places. Lenders increasingly require SIRS and milestone documentation before approving mortgages in a building, so unit sales can stall. Insurance carriers ask for the same paperwork during underwriting and renewal. And owners themselves have grounds to raise the missed deadline at annual meetings or through legal counsel, since the statute removes the board's discretion to waive reserve funding for SIRS-covered items once the study exists (or should exist). [1] Beyond the legal exposure, the financial risk is the bigger long-term problem. Without a study, boards are essentially guessing at reserve contributions, and guessing tends to run low, because nobody wants to raise dues more than necessary. When a major component fails without adequate reserves, the special assessment that follows is often far larger and far more sudden than gradual reserve funding would have required. If your association is behind on its SIRS, the first call should be to a licensed engineer to get the inspection scheduled, and the second should be to counsel to understand exactly where the association stands relative to the December 31, 2024 deadline and any grace period your county or the Legislature has since addressed. Some relief provisions have been discussed and adjusted since the original 2024 deadline; see our page on florida condo reserve fund relief for the latest on what's changed.
How often does a reserve study or SIRS need to be updated?
Florida statute requires the SIRS at least every 10 years per building, for buildings three stories and higher. [1] A voluntary full reserve study is typically recommended to be updated every 3 to 5 years by most reserve specialists, with a lighter annual update to adjust for inflation and any completed projects, though this is industry practice rather than a Florida statutory requirement outside the SIRS cycle. The reason a 10-year statutory cycle doesn't mean boards can ignore reserves for a decade: component conditions change, costs inflate, and unexpected damage (a storm, a plumbing failure) can shift the whole funding picture well before the next mandated study. Treating the SIRS as a floor, not a ceiling, is the more defensible approach, both financially and from a liability standpoint if a component fails between statutory cycles.
How should a board actually use a reserve study once it has one?
The study itself is only useful if the board turns it into an annual budget decision. That means, every budget cycle, pulling the current year's line from the funding schedule and using it (not a lower number the board prefers) as the reserve contribution line in the operating budget, then documenting to the membership why that number is what it is. Boards also need a system to track deadlines: when the SIRS is due, when milestone inspections fall due (29-year mark for coastal counties, 25-year for others, and every 10 years after under Fla. Stat. 553.899), and when the next voluntary reserve study update should happen. [6] Juggling this manually across spreadsheets and email is exactly where boards fall behind and end up scrambling before a deadline, or worse, missing one entirely. This is the specific gap the Building Compliance Kit at BoardDeadline is built to close: a one-time $199 tool that organizes your building's specific SIRS and milestone deadlines, tracks what's been completed, and generates the notices and scheduling reminders boards need to send to owners. It doesn't replace your licensed engineer, and it makes no determination about whether your specific building complies with the statute; that call belongs to your engineer and your association's counsel. What it does is keep the paperwork, dates, and communications organized so nothing falls through the cracks between now and the next deadline.
Frequently asked questions
What is a reserve study?
A reserve study is a professional inspection and financial forecast of a property's major components (roof, plumbing, structure, paving) that estimates remaining useful life and future replacement costs, then produces a funding schedule showing how much the association should save each year. Florida's version for condos, the SIRS, is required by Fla. Stat. 718.112 for buildings 3+ stories.
What is a reserve study for an HOA?
For an HOA, a reserve study works the same way as for a condo: it evaluates shared components and produces a funding schedule. Florida's SIRS mandate applies to condominiums under chapter 718, not single-family HOAs under chapter 720, but HOAs with attached structures or shared amenities often get voluntary studies for the same financial planning benefit.
What is an HOA assessment?
An HOA assessment is the regular fee members pay for shared expenses like insurance, maintenance, and reserve contributions. It's distinct from a special assessment, which is a separate, often one-time charge for a large or unexpected cost the regular budget and reserves can't cover, such as storm damage or a major component replacement.
What are HOA assessments used for?
Regular HOA assessments fund ongoing operations (management, insurance, landscaping, utilities for common areas) and reserve contributions for future major repairs. Special assessments fund specific large expenses outside the regular budget, like a roof replacement or storm damage repair, and are typically billed as a lump sum or short-term installment plan to owners.
How much should an HOA have in reserves?
There's no universal dollar figure; the right amount depends on the reserve study's component-by-component funding schedule. The goal most reserve specialists recommend is being close to 100% funded relative to the theoretical value of components' used-up life. Florida law bars condo boards from waiving reserve funding for SIRS-covered structural items once a SIRS exists.
How much does a reserve study cost?
Costs vary widely by building size, age, and scope, commonly landing in a rough range of a few dollars per unit for straightforward properties, with older or coastal buildings and first-time SIRS studies costing more due to added inspection scope. There's no state-set fee schedule; get multiple quotes from licensed engineers and compare inspection scope, more than price.
Are HOA or condo special assessments tax deductible?
Generally no for a primary residence; special assessments for capital improvements typically add to the owner's cost basis rather than being deductible in the year paid. Rental property owners may deduct assessments classified as repairs. Casualty-related assessments may qualify for a casualty loss deduction in federally declared disasters. Consult a CPA for specifics.
What is the difference between a SIRS and a milestone inspection?
A milestone inspection (Fla. Stat. 553.899) is a structural safety check required at 25 or 30 years depending on coastal location, then every 10 years after. A SIRS (Fla. Stat. 718.112) is a reserve funding study covering specific structural components, required every 10 years for condo buildings 3+ stories. They serve different purposes but often share inspection data.
Who has to perform a SIRS in Florida?
Florida law requires the SIRS visual inspection be performed by a licensed engineer or architect, per Fla. Stat. 718.112(2)(g). Associations should not accept a study performed by unlicensed staff or their management company. DBPR oversees condominium association compliance broadly but does not itself perform the inspection.
What happens if my condo association missed the SIRS deadline?
The association is out of compliance with Fla. Stat. 718.112, which can affect mortgage approvals, insurance underwriting, and expose the board to owner challenges. The immediate fix is scheduling the inspection with a licensed engineer as soon as possible and consulting counsel about the association's specific exposure and any applicable relief provisions.
Does a reserve study replace the need for a milestone inspection?
No. They're separate legal requirements under different statutes. A milestone inspection (553.899) evaluates structural safety at age milestones; a SIRS (718.112) is a reserve funding study. A completed milestone inspection can supply data used in the SIRS, but completing one does not satisfy the other's requirement.
How often must a Florida condo update its SIRS?
Fla. Stat. 718.112 requires a SIRS at least every 10 years for each condominium building three stories or higher. Many reserve specialists recommend informal budget updates more frequently (every few years) to account for inflation and completed projects, even though the statutory inspection cycle itself is every decade.
Sources
- Florida Senate, Florida Statutes Ch. 718.112: SIRS requirements, component list, 10-year cycle, and reserve waiver restrictions for condo associations
- Florida DBPR, Division of Florida Condominiums, Timeshares, and Mobile Homes: DBPR's oversight role for condominium association compliance
- Florida Senate, SB 4-D (2022): 2022 legislation establishing structural integrity reserve study and milestone inspection requirements after Surfside
- IRS, Publication 527, Residential Rental Property: Tax treatment of capital improvements versus repairs for rental property, relevant to special assessment deductibility
- IRS, Topic No. 515, Casualty, Disaster, and Theft Losses: Personal casualty loss deductions limited to federally declared disasters after Tax Cuts and Jobs Act
- Florida Senate, Florida Statutes Ch. 553.899: Milestone inspection deadlines at 25 or 30 years depending on coastal location, repeated every 10 years