Last updated 2026-08-14
TL;DR
A reserve study is an engineer's or reserve specialist's inspection and cost projection for a building's major components (roof, structure, plumbing, etc.). Florida law requires condo associations with buildings 3+ stories to complete a Structural Integrity Reserve Study (SIRS) at least every 10 years, and to fund reserves for those items at 100% with no waiving allowed, per Fla. Stat. 718.112.
What is a reserve study?
A reserve study is a professional assessment of a property's major physical components (roofs, paving, plumbing, structural elements, painting, and similar big-ticket items), paired with a cost estimate and a funding schedule so the association can budget for replacement before something fails. Think of it as a maintenance forecast with a price tag attached to every line item, spread out over the useful life of each component. A basic reserve study usually includes three things: a physical inspection of the components, an estimate of remaining useful life for each one, and a financial plan showing how much the association should be setting aside each year to pay for replacement when the time comes. Some studies are done by reserve specialists who focus mostly on the financial modeling; others, especially Florida's newer structural requirement, must be done by a licensed engineer or architect [1]. In Florida condos specifically, there are now two related but distinct things that get called "reserve studies." There's the traditional reserve study that many associations have done for years as a budgeting best practice, and there's the Structural Integrity Reserve Study (SIRS), which became mandatory after the Champlain Towers South collapse in Surfside in 2021. The SIRS is narrower in scope (it covers specific structural components) but has real legal teeth: it drives a funding requirement the old voluntary studies never had. For a full breakdown of what a SIRS actually inspects, see our reserve study for condo association guide.
What is a reserve study for an HOA?
For a homeowners association (single-family homes, townhomes not in a condo form of ownership), a reserve study serves the same basic purpose: figure out what the common-area components will cost to replace and when, then set aside money gradually instead of hitting owners with a surprise bill. HOAs in Florida are governed by chapter 720, not chapter 718, and as of now Florida does not impose a SIRS-style mandatory structural reserve study on HOAs the way it does on condos [2]. That said, many HOA governing documents (declarations, bylaws) require reserve studies or reserve funding on their own, independent of state law, so a board can't assume "no statute means no obligation." Check the association's declaration and confirm with counsel. HOAs that skip reserve planning altogether tend to end up doing special assessments instead, because the roof, the pool deck, or the private roads eventually need replacing whether there's a study or not. A reserve study just makes that cost visible years in advance instead of all at once. See our hoa reserve study page for more on how this works outside the condo context.
What does Florida law actually require (SIRS)?
Florida Statute 718.112(2)(g) requires condominium associations with buildings 3 stories or more in height to complete a Structural Integrity Reserve Study at least every 10 years, and the first one had a statutory deadline of December 31, 2024 for most existing associations [1]. The study has to be performed or supervised by a licensed engineer or architect and must cover, at minimum, the following components if they're part of the condominium property: 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 [1]. The statute is specific about what has to happen with the money once the SIRS is done. Fla. Stat. 718.112(2)(f) prohibits associations from waiving reserve funding for the components covered by a SIRS, and requires those reserves to be funded based on the study's findings, with no ability to use the funds for anything other than their designated purpose absent a proper vote [1]. This is the part that changed the game after 2022: before the post-Surfside reforms, many associations voted every year to waive or reduce reserves. That option is now off the table for SIRS-covered components. For the mechanics of scheduling this alongside the separate milestone structural inspection requirement, see our reserve study overview and the florida condo reserve fund relief page for how the legislature has adjusted deadlines and funding rules since the original 2022 law passed.
What is an HOA assessment, and what is a special assessment?
An assessment, in plain terms, is money an association charges owners to cover shared costs. Regular assessments are the routine dues everyone pays monthly or quarterly for operating expenses and reserve contributions. A special assessment is a one-time or short-term extra charge levied when the regular budget and reserves don't cover a specific need, usually a big repair, a legal settlement, or a shortfall the association didn't reserve for adequately. Special assessments are legal and common in both condo and HOA associations, but the board's authority to levy one, and any dollar caps or owner-vote requirements, comes from the association's governing documents and, for condos, from chapter 718 provisions on budgeting and assessments [3]. Boards can't just invent a number; there's usually a process (board resolution, sometimes membership notice or vote depending on the size of the assessment and what the bylaws say). For a deeper look at how these get triggered and what owners can expect, see our hoa special assessment guide. The short version of why SIRS matters here: a well-funded reserve, driven by an accurate reserve study, is the single best defense against a large surprise special assessment. Boards that reserve properly are spreading a $2 million roof replacement over 20 years of contributions. Boards that don't are asking owners to write a $30,000 check in one year.
How much should an HOA (or condo) have in reserves?
There's no single statutory dollar figure or percentage that applies to every association, because the right reserve amount depends entirely on the building's age, size, components, and local replacement costs. What the SIRS statute requires instead is that reserves be funded based on the study's own findings for the covered structural components, at 100% of the calculated need, without waiving, per Fla. Stat. 718.112(2)(f) [1]. That said, the industry rule of thumb reserve professionals use is a "percent funded" benchmark. A reserve fund is considered fully funded at 100% of the calculated need for all components at their current age. Many reserve specialists consider anything above roughly 70% funded to be reasonably healthy, and anything under 30% funded to be a red flag signaling likely special assessments ahead. These are industry conventions from reserve-study practitioners, not fixed legal thresholds, so treat them as a gut check rather than a rule. What you can say with more confidence: for the specific components the SIRS covers (roof, structure, waterproofing, electrical, plumbing, fireproofing, and windows, per 718.112(2)(g) [1]), Florida law now requires funding at the level the study calculates, full stop. There's no board vote available anymore to underfund those specific line items the way there used to be for general reserves before the 2022 and 2023 reform bills.
How much does a reserve study cost?
Costs vary widely based on building size, number of components, and whether you're getting a basic financial-only reserve study or a full SIRS with engineering inspection. Florida associations report SIRS costs commonly falling somewhere in the low thousands for small buildings up to the tens of thousands for large, complex high-rises, though there's no single statewide fee schedule and no state agency publishes an official average, so treat any number you hear as a range, not a quote. Factors that move the price: the number of buildings and units, the age and complexity of major systems, whether the engineer needs invasive testing (core samples, moisture probes) versus visual inspection only, and how competitive the local market for licensed engineers is in a given county. Coastal, high-rise, and older buildings tend to cost more because there's simply more to inspect and document. One practical note: boards sometimes try to save money by bundling the SIRS with the milestone structural inspection when both are due around the same time, since an engineer is already on-site. That can genuinely reduce costs, but it only works if the timing lines up; a board 3 years out from its milestone inspection but facing a SIRS deadline this year shouldn't wait just to bundle. Get a firm quote from a licensed Florida engineer or architect before assuming any bundling discount will apply.
Are HOA special assessments tax deductible?
For most owners, no. Special assessments paid to a condo or HOA for capital improvements, repairs, or reserve shortfalls are generally not deductible as a personal expense on a federal tax return, because the IRS treats them similarly to home improvement costs rather than deductible taxes or interest [4]. The IRS publication on selling your home (Publication 523) discusses how certain assessments can adjust your cost basis in the property, which matters when you eventually sell, but that's different from an annual deduction [4]. There are exceptions worth knowing. If a unit is a rental property, special assessments related to repairs or operating costs may be deductible as a business expense against rental income, subject to normal IRS rules distinguishing repairs from capital improvements. And if part of an assessment specifically funds something like flood mitigation tied to a federally declared disaster, there can be narrow casualty-loss provisions, though those rules tightened significantly after the Tax Cuts and Jobs Act limited personal casualty loss deductions to federally declared disasters through 2025 [5]. Bottom line: don't assume deductibility. Owners facing a large special assessment should talk to a CPA about their specific situation, especially with rental units or disaster-related assessments, rather than guessing based on general condo-owner forum advice.
What happens if a Florida condo association doesn't complete its SIRS?
Failing to complete a required SIRS puts an association out of compliance with Fla. Stat. 718.112, which can expose the board to owner complaints, potential DBPR inquiries, and difficulty later justifying reserve waivers or budget decisions that depend on having current study data. Florida's Division of Florida Condominiums, Timeshares, and Mobile Homes, under the Department of Business and Professional Regulation, oversees condo association compliance and complaint intake [6]. Beyond the regulatory angle, there's a practical risk that matters more day to day: without a current SIRS, the board has no defensible basis for its reserve budget. That makes it much harder to explain to owners why dues are rising, and it makes any eventual special assessment look reactive rather than planned. Lenders and title companies have also started asking for SIRS status during condo sales, since Fannie Mae and other underwriters flag buildings with reserve or structural compliance issues, which can affect unit resale values and buyer financing. None of this means a board should panic-hire the first engineer who returns a call. It means the SIRS deadline needs to sit on the same calendar as milestone inspection deadlines, insurance renewal dates, and annual budget planning, because they all interact. This is exactly the kind of scheduling and documentation problem a $199 one-time Board Compliance Kit is built for: it organizes the building's specific deadlines (SIRS, milestone inspection, budget votes) in one place so the board isn't relying on memory or a scattered email thread. It doesn't replace the engineer's inspection or legal advice; it just keeps the paperwork and dates straight.
How does a SIRS relate to the milestone structural inspection?
They're related but separate requirements under Florida law, and boards sometimes conflate them. The milestone structural inspection, under Fla. Stat. 553.899, is a phase-based structural inspection (phase one is a visual review, phase two is more invasive if needed) required for condo and cooperative buildings 3 stories or more once the building hits 30 years old (25 years if within 3 miles of the coast), and every 10 years after that [7]. The SIRS, under 718.112(2)(g), is the reserve funding study, also triggered by the 3-stories-or-more threshold, also on a roughly 10-year cycle, but focused on funding reserves for structural and building-envelope components rather than certifying the structure's current safety [1]. In practice, a lot of associations schedule both around the same window because they cover overlapping components (roof, structure, waterproofing) and because using the same engineering firm for both can be more efficient. But they answer different questions: the milestone inspection asks "is this building structurally sound right now," while the SIRS asks "how much money do we need to be setting aside to maintain these components over time." For a full comparison of timing and triggers, see our milestone inspection coverage. For a full walkthrough of what a SIRS report actually contains component by component, our reserve study for condo association page goes deeper into the engineering side.
Do reserve study requirements differ for older buildings or coastal buildings?
The SIRS requirement itself doesn't change based on age or coastal proximity the way the milestone inspection timing does. SIRS applies to condo buildings 3 stories or more regardless of when they were built, with the 10-year re-study cycle running from whenever the first study was completed [1]. The milestone inspection, by contrast, does have a coastal distinction built into the statute: buildings within 3 miles of the coastline face the 25-year trigger instead of 30, because saltwater exposure accelerates deterioration of concrete, rebar, and building envelopes [7]. What does change practically for older and coastal buildings is the content of the reserve study itself. An engineer inspecting a 45-year-old oceanfront tower is going to find shorter remaining useful life on structural and waterproofing components than one inspecting a 12-year-old inland building, which pushes the reserve funding number up. So while the requirement to do a SIRS is the same across ages, the dollar figure that comes out of it usually is not; older, coastal buildings tend to need to reserve more aggressively per unit. Boards in coastal counties should also expect insurers to ask about SIRS and milestone status when underwriting property policies, since carriers use this documentation to assess structural risk. That connects directly to premium costs; see our condo special assessment insurance page for how reserve funding status and insurance costs interact.
Who can perform a reserve study or SIRS in Florida?
For the statutory SIRS, Florida law requires the study be performed by a person qualified to perform such analysis, and specifically references licensed engineers and architects for the structural components [1]. The Florida Department of Business and Professional Regulation licenses and regulates engineers and architects operating in the state, and associations should confirm any firm they hire holds active Florida licensure before signing a contract [8]. For traditional, non-SIRS reserve studies covering non-structural components (furniture, pool equipment, general capital items), many associations use reserve study specialists who may hold credentials like the Reserve Specialist (RS) designation through the Community Associations Institute, though Florida statute doesn't mandate a specific credential for those voluntary studies the way it does for the SIRS engineer requirement. Boards should ask any prospective firm for proof of current Florida license, references from other associations of similar size, and a clear scope of work that maps to the components listed in 718.112(2)(g) if it's meant to satisfy the statutory SIRS. Don't assume a general handyman inspection or an unlicensed "reserve consultant" satisfies the legal requirement; the statute is specific about licensure for a reason.
Frequently asked questions
What is a reserve study?
A reserve study is a professional inspection of a property's major components (roof, plumbing, structure, paving, and similar big items) paired with cost estimates and a funding schedule. It tells a board how much money to set aside each year so replacements can be paid for without a surprise special assessment when something wears out.
What is a reserve study for an HOA?
For an HOA, a reserve study covers common-area components like roofs, pools, roads, and clubhouse buildings, projecting replacement costs and timelines. Florida doesn't currently mandate a SIRS-style study for HOAs under chapter 720 the way it does for condos, but many HOA declarations require reserve studies on their own; confirm with counsel.
What is an HOA assessment?
An HOA assessment is a fee the association charges owners to cover shared costs: regular assessments are routine dues for operating expenses and reserves, while special assessments are one-time or short-term charges for unbudgeted needs like a major repair or reserve shortfall.
How much should an HOA have in reserves?
There's no fixed legal dollar amount for HOAs in Florida. Reserve professionals generally consider a fund above roughly 70% of its calculated full-funding target reasonably healthy, and below 30% a warning sign. For condo SIRS-covered components, Florida law now requires funding at 100% of the study's calculated need, with no waiving allowed under Fla. Stat. 718.112.
How much does a reserve study cost?
Costs vary by building size and complexity; small buildings may pay in the low thousands, while large high-rises can run into the tens of thousands, especially if invasive testing is needed. There's no statewide published average, so get quotes from licensed engineers for your specific building rather than relying on a generic figure.
Are HOA special assessments tax deductible?
Generally no, for personal residences. The IRS treats special assessments more like home improvement costs, which can adjust your cost basis when you sell (see IRS Publication 523) rather than a deduction you take annually. Rental property owners may have different deductibility rules; talk to a CPA.
What is a SIRS and how is it different from a regular reserve study?
SIRS stands for Structural Integrity Reserve Study, a Florida-specific, statutorily mandated study under Fla. Stat. 718.112(2)(g) covering structural and building-envelope components, done by a licensed engineer or architect. A regular reserve study is broader (can include non-structural items) and, outside the SIRS requirement, isn't mandated by state law in the same way.
Which Florida buildings must complete a SIRS?
Condominium associations with buildings 3 stories or more in height must complete a Structural Integrity Reserve Study at least every 10 years under Fla. Stat. 718.112(2)(g). The first statutory deadline for most existing associations was December 31, 2024; confirm current deadlines with your association's counsel since the legislature has adjusted timing before.
Can a condo association still waive reserve funding?
Not for the components covered by a completed SIRS. Fla. Stat. 718.112(2)(f) prohibits waiving or reducing reserve funding for SIRS-covered structural components once the study is done; owners can no longer vote to skip that funding the way they could before the post-Surfside reforms.
How often does a Florida condo need a milestone inspection versus a SIRS?
Both run on roughly a 10-year cycle for buildings 3 stories or more, but they trigger differently. The milestone inspection under Fla. Stat. 553.899 kicks in at 30 years (25 years if within 3 miles of the coast). The SIRS under Fla. Stat. 718.112 is tied to the association's own study schedule, generally every 10 years.
Who is qualified to perform a Florida SIRS?
Florida law requires the SIRS to be performed by a licensed engineer or architect for the structural components specified in Fla. Stat. 718.112(2)(g). Boards should verify active Florida licensure through DBPR before hiring a firm, and confirm the scope of work actually maps to the statutory component list.
What components does a Florida SIRS have to cover?
At minimum: roof, load-bearing walls and other primary structural members, floor, foundation, fireproofing and fire protection systems, plumbing, electrical systems, waterproofing and exterior painting, and windows, per Fla. Stat. 718.112(2)(g), to the extent those components exist on the property.
Sources
- Florida Senate, Fla. Stat. 718.112: SIRS requirement, covered components, 10-year cycle, and reserve funding/waiver prohibition
- Florida Senate, Fla. Stat. ch. 720: HOAs are governed by chapter 720, separate from condo chapter 718
- Florida Senate, Fla. Stat. 718.116: Condo association assessment authority and owner liability provisions
- IRS, Publication 523, Selling Your Home: How special assessments can adjust cost basis rather than being annually deductible
- 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 DBPR, Division of Florida Condominiums, Timeshares, and Mobile Homes: State division overseeing condo association compliance and complaints
- Florida Senate, Fla. Stat. 553.899: Milestone inspection age triggers of 30 years (25 if within 3 miles of coastline) and 10-year recurring cycle
- Florida DBPR, Board of Professional Engineers licensing: Florida licenses engineers who may perform statutory SIRS structural assessments