Last updated 2026-07-24
TL;DR
A reserve study is an engineering and financial report that lists an association's major common-element components, their remaining life, and the cost to repair or replace them. Florida condos 3+ stories must get a Structural Integrity Reserve Study (SIRS) and fund those reserves fully starting with the 2025 budget year under 718.112, F.S. [1]
What is a reserve study?
A reserve study is a written report, usually done by an engineer or a reserve specialist, that inventories the big-ticket common elements in a community (roof, paving, painting, elevators, pool, structural components) and estimates two things: how many years each item has left, and what it will cost to fix or replace it when that time comes. Good studies also model how much the association should be putting into its reserve fund each year to have the cash on hand when the bill arrives. Think of it as a long-range maintenance budget with an inspection behind it. Most studies run 20 to 30 years out. They get updated every few years because material costs change, components age faster or slower than expected, and sometimes an association does work early or late. For Florida condominiums, the reserve study concept split into two tracks after the 2022 and 2023 legislative changes. There's the traditional financial reserve study that many associations have done voluntarily for years, and there's now the Structural Integrity Reserve Study (SIRS), which is a statutory requirement for condo and cooperative buildings three stories or more in height under section 718.112(2)(g), Florida Statutes [1]. A SIRS only covers structural and life-safety items (roof, load-bearing walls, floor, foundation, fireproofing, plumbing, electrical, waterproofing, windows and doors, and the milestone-related structural elements). It doesn't cover amenities like pools or landscaping the way a full financial reserve study does. If you want the mechanics of what a SIRS inspector actually checks and how it differs from a milestone inspection, see our reserve study guide, which walks through the component list line by line.
What is a reserve study for an HOA?
For a homeowners association (single-family or townhome HOA, not a condo), a reserve study works the same way conceptually but the legal requirement is different. Florida's HOA statute, chapter 720, does not currently impose a SIRS mandate the way chapter 718 does for condos three stories and up. HOAs are generally required to maintain reserve accounts only if the declaration or bylaws call for them, or if the membership votes to fund reserves under section 720.303(6), Florida Statutes [2]. That said, plenty of HOAs commission voluntary reserve studies anyway, especially ones with shared structures like clubhouses, private roads, retaining walls, gated entries, or drainage systems. A reserve study protects the board from the two failure modes that sink HOAs financially: waiting too long to notice a component is failing, and then hitting owners with a special assessment nobody budgeted for. Our hoa reserve study page breaks down which HOA components typically make the list and how often to refresh the study. One practical note: even where state law doesn't force an HOA's hand, mortgage lenders increasingly do. Fannie Mae and Freddie Mac project eligibility reviews look at whether an association has adequate reserves, and a documented reserve study is the cleanest way to show that. Buyers in HOAs with no reserve funding sometimes discover this the hard way when their loan gets flagged during underwriting.
What is an HOA assessment, and what's the difference from a special assessment?
An HOA assessment is the fee the association charges each owner to cover shared expenses. There are two basic types. Regular (or annual/monthly) assessments cover routine operating costs and normal reserve contributions. Special assessments are one-time charges levied when there's a specific extra cost the regular budget doesn't cover, like a new roof, storm damage, or a reserve shortfall the board didn't anticipate. Boards typically need a vote (board-only or membership, depending on the amount and what the governing documents say) to levy a special assessment. In Florida condos, section 718.116, Florida Statutes governs how assessments are calculated, when they become liens, and what happens if an owner doesn't pay [3]. HOAs follow the parallel provisions in chapter 720. The connection to reserve studies matters here directly: an association that funds its reserves properly, based on a real reserve study, needs special assessments far less often. An association that waives reserves for years, or underfunds them, is basically betting that a special assessment (usually a big one, often thousands of dollars per unit) won't be needed on its watch. See our hoa special assessment explainer for how these get calculated and challenged.
How much should an HOA (or condo) have in reserves?
There's no single dollar figure or percentage that applies to every association, because it depends entirely on what your components are, their age, and local construction costs. The honest answer is: enough to cover the specific projects your reserve study lists on the schedule it lists them, without needing a special assessment to fill the gap. That's not a dodge. Reserve funding is typically expressed as a percentage of "fully funded" status: the ratio of what's actually in the reserve account to what the reserve study says should be there at that point in each component's life cycle. Community association industry surveys, including work published by the Foundation for Community Association Research, have repeatedly found that a large share of associations nationally are funded well below 100%, often in the 30% to 70% range, which is why special assessments are so common when a major system fails early or costs run over estimate [4]. For Florida condos covered by the SIRS mandate, the law removed the old option to waive or reduce reserve funding for the SIRS-required components. Starting with the fiscal year beginning January 1, 2025, condo and co-op associations subject to SIRS must fund reserves for those components at the level the study recommends, in full, with no annual membership vote to underfund or skip it [1][4]. That's a real change from the pre-2022 rules, where owners could vote each year to keep contributions low. HOAs (chapter 720) still generally retain more flexibility. Members can vote to reduce or waive reserve funding for a given year under 720.303(6), Florida Statutes, unless the declaration says otherwise [2]. That flexibility is exactly why so many HOAs end up reserve-poor: it's legal to underfund, right up until the parking lot or roof actually fails.
How much does a reserve study cost?
| Basic financial reserve study (HOA, small condo) | Reserve specialist or CPA-adjacent firm | $1,500 - $4,000 | Every 3-5 years | |
|---|---|---|---|---|
| Full reserve study, larger property | Licensed reserve specialist | $4,000 - $10,000+ | Every 3-5 years | |
| Florida SIRS (3+ story condo) | Licensed engineer or architect | $6,000 - $20,000+, scales with building size | Every 10 years, per 718.112(2)(g) [1] | These ranges are not statutory prices; nobody sets a fixed fee for this work, and costs in South Florida coastal markets often run higher than inland or Panhandle markets because of engineer demand and building complexity. Get at least two or three quotes and confirm the provider is licensed to do the specific type of study your building needs. |
Costs vary by building size, component complexity, and whether you're getting a full financial reserve study or a Florida statutory SIRS. As a rough range based on industry reporting and vendor quotes seen across Florida condo and HOA markets: a basic reserve study for a small association can run $1,500 to $4,000, and larger or more complex properties (high-rises, large HOAs with many structural components) can run well into the $8,000 to $20,000+ range [4]. SIRS-specific inspections, because they require a licensed engineer or architect to visually inspect structural elements building-wide, tend to track closer to milestone inspection pricing, sometimes bundled with the milestone inspection itself to save on mobilization costs. DBPR's condominium guidance pages note that a SIRS "must be based on a visual inspection" performed by a licensed engineer or architect, which is part of why these cost more than a paper-based financial reserve study alone [5]. Here's a rough comparison to set expectations: | Study type | Who typically performs it | Typical cost range | Update frequency |
Who is required to get a reserve study or SIRS in Florida?
Florida condominium and cooperative associations with buildings three stories or higher are required to complete a SIRS, and the deadline for the first one was December 31, 2024 for most existing buildings, based on the statutory schedule tied to certificate of occupancy age [1][4]. Buildings that miss the SIRS deadline face real consequences: DBPR can pursue enforcement, and boards lose their ability to waive or reduce reserve funding for the affected components. Standalone HOAs (single-family and townhome communities) are not currently subject to a state-mandated SIRS or reserve study requirement. That's a meaningful gap: an HOA with a shared parking structure, retaining wall, or clubhouse roof can legally go without any professional reserve study, funding reserves purely at the board's discretion (or not at all, if the declaration doesn't require it). Milestone inspections are a separate but related requirement, triggered by building age (generally 30 years, or 25 years within three miles of the coast, then every 10 years after) under section 553.899, Florida Statutes [6]. A milestone inspection and a SIRS are not the same report, though many associations schedule them together since both require an engineer on site. Our reserve study for condo association page covers how the two interact and what order to schedule them in.
Are HOA special assessments tax deductible?
Generally, no, for the individual homeowner paying it. Special assessments used for capital improvements, repairs, or reserve shortfalls are treated by the IRS as additions to your cost basis in the property, not as a deductible expense, in the same way that a special assessment for a new roof isn't a repair deduction; it's a capital cost . There are narrow exceptions. If part of a special assessment is specifically for maintenance or operating costs on a rental property you own (not your personal residence), that portion may be deductible as a rental expense in the year paid, similar to regular HOA dues on a rental. If the assessment funds a casualty-loss repair after a federally declared disaster, there may be a casualty loss angle, but that's a fact-specific tax question. The IRS's own guidance on rental property expenses and capital improvements (Publication 527 and related basis rules) is the right starting reference, and a CPA should sign off on anything beyond dues on a rental unit . Don't take a home office or rental deduction on a special assessment without checking with a tax preparer first. The IRS distinguishes sharply between a currently deductible expense and a capitalized cost added to basis, and misclassifying a big assessment can create real exposure in an audit.
What's the difference between a reserve study and a milestone inspection?
A milestone inspection is a structural safety check: a licensed engineer or architect examines the building for signs of substantial structural deterioration and issues a report, required at 30 years of age (25 years if within three miles of the coast) and every 10 years after, under section 553.899, Florida Statutes [6]. It answers the question "is this building structurally sound right now?" A reserve study, including the SIRS version, answers a different question: "what will it cost to maintain and replace major components over time, and how much should we be saving?" A SIRS specifically must estimate remaining useful life and replacement cost for the structural items listed in 718.112(2)(g), and it must be updated at least every 10 years [1]. They overlap in one important way: both typically require a site visit by a licensed engineer or architect, and a milestone inspection finding can directly change what a SIRS recommends funding (a building with early-stage concrete spalling needs a different reserve trajectory than one with none). Many Florida associations now schedule both inspections in the same site visit to save on engineer travel and mobilization fees.
How does reserve underfunding lead to special assessments?
When a reserve fund doesn't have enough saved for a component's replacement, the association has three options when that component fails: borrow (a bank loan against future assessments, if a lender will underwrite it), levy a special assessment, or defer the repair (which is usually the worst option and often illegal once a safety issue is documented). Most Florida condos facing large SIRS-driven repair bills in the past two years chose the special assessment route, and some of these have run into the tens of thousands of dollars per unit for older coastal buildings needing structural or waterproofing work. The state did create limited relief options: legislation passed in 2024 (SB 1103) gave associations some additional flexibility, including the ability to use lines of credit and to phase in some funding, and 2025 legislation (HB 913 / related bills) adjusted parts of the SIRS and reserve timeline further. Because this area of law keeps moving, confirm the current deadlines and funding rules with your association's counsel before assuming last year's numbers still apply. If you're a board trying to get ahead of this rather than reacting to it, a $199 one-time Building-Specific Board Compliance Kit can help organize your SIRS and milestone deadlines, reserve line items, and owner notices into one schedule so nothing gets missed between inspection cycles. It doesn't replace the engineer's report or your attorney's read of your documents; it just keeps the paperwork and dates straight.
What happens if a Florida condo association skips its required SIRS?
Skipping a required SIRS puts the association out of compliance with section 718.112, Florida Statutes, and DBPR's Division of Florida Condominiums, Timeshares, and Mobile Homes has enforcement authority over associations under its jurisdiction [5]. Practically, the bigger risk for most boards isn't a state enforcement action; it's the loss of the ability to waive reserve funding and the liability exposure if a structural problem goes undetected and later causes damage or injury. Owners and buyers are also paying closer attention. Lenders and title companies increasingly ask for proof of SIRS completion before closing a sale in a condo building three stories or higher, and some have started declining to finance units in associations that are behind on their statutory inspections. A board that's behind should get quotes from a licensed engineer immediately and put a firm date on the calendar rather than let it drift another budget cycle.
How often does a reserve study need to be updated?
For a Florida SIRS, the statute requires an update at least every 10 years [1]. For voluntary financial reserve studies, industry practice (and most reserve specialist recommendations) suggests every 3 to 5 years, with a lighter "update" (no new site visit, just recalculated numbers) in the off years and a full study with a new site visit periodically. The reason for the shorter voluntary cycle is that construction costs, insurance costs, and material availability move fast, faster than a 10-year SIRS cycle captures. An association that only updates its numbers once a decade risks budgeting off stale cost estimates, especially after a period like 2021-2024 when roofing and concrete restoration costs in Florida rose sharply due to insurance market pressure and material costs. If your last study is more than 5 years old and hasn't been adjusted for current pricing, treat the numbers with real skepticism before setting next year's budget.
Frequently asked questions
What is a reserve study?
A reserve study is a professional report that inventories an association's major common-element components, estimates each one's remaining useful life, projects replacement or repair costs, and recommends an annual funding schedule so the association has cash on hand when the work is due, rather than needing a special assessment.
What is a reserve study for an HOA specifically?
For an HOA, a reserve study covers shared components like private roads, clubhouses, pools, retaining walls, and drainage systems. Unlike Florida condos, HOAs under chapter 720 aren't state-mandated to complete one, so it's typically done voluntarily or required by the governing documents or a lender.
What is an HOA assessment?
An HOA assessment is a fee charged to each owner to cover the association's shared costs, either as a regular recurring charge (dues) or a special assessment for a one-time expense like a major repair, storm damage, or a reserve shortfall not covered by the annual budget.
How much should an HOA have in reserves?
There's no fixed dollar figure; it depends on your reserve study's schedule of components and costs. The goal is being funded close to 100% of what the study says should be saved at each point in time. National surveys have found many associations funded well below that, often 30% to 70%, which is why unexpected special assessments are common.
How much does a reserve study cost?
A basic reserve study runs roughly $1,500 to $4,000 for a small association, and $4,000 to $10,000 or more for larger or more complex properties. Florida's structural SIRS, which requires a licensed engineer's site inspection, often costs $6,000 to $20,000+ depending on building size and complexity.
Are HOA special assessments tax deductible?
Generally no, for a personal residence. The IRS treats special assessments for capital repairs or improvements as additions to your cost basis, not deductible expenses. A portion may be deductible if the property is a rental and the assessment funds ordinary maintenance; check with a CPA.
Is a SIRS the same thing as a reserve study?
No. A SIRS (Structural Integrity Reserve Study) is a narrower, Florida-specific statutory requirement covering only structural and life-safety components for condos three stories or higher. A full financial reserve study covers all common-element components, including amenities, and isn't limited to structural items.
Which Florida condos are required to do a SIRS?
Condominium and cooperative associations with buildings three stories or taller must complete a SIRS under section 718.112(2)(g), Florida Statutes. The first deadline for most existing buildings was December 31, 2024, and updates are required at least every 10 years after that.
Do Florida HOAs have to do a reserve study or SIRS?
Not currently under state law. Chapter 720, which governs Florida HOAs, doesn't impose a SIRS mandate the way chapter 718 does for condos. HOA reserve funding is generally governed by the declaration, bylaws, or a membership vote under section 720.303(6), Florida Statutes.
Can a condo association still waive reserve funding in Florida?
Not for SIRS-required structural components. Starting with the fiscal year beginning January 1, 2025, associations subject to the SIRS mandate must fully fund those reserves, with no annual vote to waive or reduce them. Non-SIRS reserve items may still be subject to waiver votes; confirm current rules with counsel.
What happens if a condo board skips a required SIRS?
The association falls out of compliance with section 718.112, Florida Statutes, loses the ability to waive reserve funding, and faces potential DBPR enforcement. Practically, lenders and title companies are increasingly requiring proof of SIRS completion before financing a unit sale, which can stall closings.
How is a milestone inspection different from a reserve study?
A milestone inspection checks whether a building is currently structurally sound, required at 30 years (25 if within three miles of the coast) and every 10 years after, under section 553.899, Florida Statutes. A reserve study or SIRS separately projects future repair costs and funding needs; they're often scheduled together.
Sources
- Florida Senate, Florida Statutes Section 718.112: SIRS requirement for condos 3+ stories, reserve funding mandate starting 2025, 10-year update cycle
- Florida Senate, Florida Statutes Section 720.303: HOA reserve funding and membership waiver vote provisions
- Florida Senate, Florida Statutes Section 718.116: Condo assessment calculation, liens, and collection rules
- Florida DBPR, Division of Florida Condominiums, Timeshares, and Mobile Homes: SIRS deadline for existing buildings and reserve funding compliance requirements
- Florida Senate, Florida Statutes Section 553.899: Milestone inspection age thresholds (30 years, or 25 years within 3 miles of coast) and 10-year recurrence
- Internal Revenue Service, Publication 527 (Residential Rental Property): Special assessments for capital improvements are added to cost basis rather than currently deducted, with different treatment for rental property expenses