Last updated 2026-08-14
TL;DR
A capital reserve study is an engineer or reserve specialist's report estimating what your building's major components (roof, paving, structure) will cost to repair or replace, and how much you should save each year. Florida condos 3+ stories now must fund reserves for SIRS items based on that study, with no more waiving them for those items under Fla. Stat. §718.112(2)(f).
What is a reserve study?
A reserve study is a written report, usually done by an engineer, reserve specialist, or a licensed contractor with the right credentials, that inventories a property's major shared components (roof, elevators, pavement, structure, pool, painting) and estimates two things: the useful life remaining on each item and what it will cost to repair or replace it when the time comes. From those two numbers, the study builds a funding schedule showing how much the association should be putting into reserves each year so the money is there when the roof actually needs replacing instead of triggering a special assessment. Most studies run 20 to 30 years out and get updated every few years as costs and conditions change. A full study usually includes an on-site visual inspection; some cheaper "update" studies skip the site visit and just adjust the numbers from the prior report. For Florida condos, the study that now matters most legally is the Structural Integrity Reserve Study (SIRS), a specific statutory version tied to milestone inspection findings and covering a defined list of structural and life-safety components under Fla. Stat. §718.112(2)(g) [1]. A reserve study is not a guess or a rule of thumb. It is a documented, line-item projection, and for Florida condos over three stories, the SIRS version is now a legal requirement, not a best practice suggestion.
What is a reserve study for an HOA?
For a homeowners association, a reserve study works the same way conceptually: an inventory of shared components the HOA is responsible for (roofs on common buildings, clubhouse, pool, gates, private roads, retaining walls) with cost and life-expectancy estimates for each. The output is a multi-year funding plan that tells the board what percentage of dues should go to reserves versus operating expenses. Florida's SIRS statute applies specifically to condominium associations with buildings three stories or more in height, not to single-family HOAs [1]. That said, plenty of Florida HOAs with condo-style buildings, townhome complexes with shared roofs, or common structural elements choose to commission a similar study voluntarily, because the math (fund gradually vs. get hit with a surprise bill) doesn't change just because the statute doesn't technically require it. If your HOA has any building over three stories that meets the condominium form of ownership, check with your association's counsel on whether SIRS applies to your specific structure, since "HOA" and "condominium association" get used loosely and the legal triggers are specific.
What is an HOA assessment, and what is a special assessment?
An HOA assessment (or condo assessment) is money the association charges owners on top of, or instead of, regular dues. Regular assessments fund the annual operating budget and reserve contributions; you pay them monthly or quarterly as part of normal dues. A special assessment is a one-time (or limited-term) additional charge the board levies when there isn't enough reserve money to cover a needed repair, and the shortfall has to come from somewhere fast. Special assessments are legal and common in Florida. Boards typically levy them after a milestone inspection turns up required structural repairs, after storm damage exceeds insurance proceeds, or when a reserve study reveals a funding gap the association never closed. The trigger is almost always the same story: reserves were waived or underfunded for years, then a big bill came due all at once. Under current Florida law, condo boards no longer have the option to fully waive or reduce reserve funding for the specific SIRS components once the study is done [1]. That single change is aimed directly at preventing the kind of six-figure special assessment that made headlines after Champlain Towers South.
How much should an HOA (or condo) have in reserves?
There's no single dollar figure that applies to every building; the right reserve balance is whatever the study says you need for your specific components, ages, and local repair costs. But two national benchmarks are worth knowing. The Community Associations Institute has cited industry estimates that many associations are underfunded relative to their reserve study recommendations, and Florida's own post-Surfside task force and legislature moved to require full funding for structural items specifically because so many buildings had reserves that didn't match their actual repair timelines [2]. A useful way to think about "how much" is in terms of percent funded: reserves divided by the fully funded balance the study recommends for that point in time. Reserve professionals generally treat anything above roughly 70% funded as reasonably healthy, 30% to 70% as a caution zone, and under 30% as a red flag likely to require a special assessment within a few years [3]. Florida's statute doesn't set a percent-funded target; it sets a floor, requiring that reserves for SIRS components be funded at the level the study calculates, full stop, with no board vote to reduce them [1]. If your building has never had a reserve study, the honest answer to "how much should we have" is: nobody can tell you until the study is done. Guessing based on what a neighboring building has in reserves is a common mistake, because age, height, coastal exposure, and construction type all change the number significantly.
How much does a reserve study cost?
| Full reserve study | ~$3,000, $10,000+ | Yes | First study, or every 5 to 6 years | |
|---|---|---|---|---|
| Update (no site visit) | Lower, often $500, $2,000 | No | Interim years between full studies | |
| SIRS (statutory) | Often higher than general reserve study, varies by size | Yes, by licensed engineer/architect | All Florida condos 3+ stories | Get three quotes. Reserve study firms vary a lot in price and depth, and the cheapest bid sometimes skips components a more careful firm would catch. |
Cost varies with building size, number of components, and whether it's a full study (with site visit) or an update. Industry sources and Florida reserve specialists commonly cite full reserve studies running roughly $3,000 to $10,000+ for a mid-size condo building, with larger or more complex properties (multiple buildings, elevators, pools, extensive common structural elements) running higher [4]. SIRS studies specifically, because they require a licensed engineer or architect and a defined list of structural components under §718.112(2)(g), tend to run toward the higher end of that range or above it depending on building size and site access [1]. Update studies without a new site visit typically cost less than a full study, often a fraction of the price, but they lean on assumptions instead of fresh inspection data, so accuracy declines the longer you go between full studies. Compare that cost to what happens without one: special assessments tied to deferred structural repairs have run into the tens of thousands of dollars per unit at some Florida buildings following milestone inspections. A $5,000 to $10,000 study is cheap insurance against a $30,000 per-unit surprise bill. | Study type | Typical cost range | Site visit? | Best for |
What does Florida's SIRS requirement actually require?
Florida's Structural Integrity Reserve Study requirement, created after the 2021 Surfside collapse, applies to condominium associations for buildings three stories or higher. The statute requires a visual inspection by a licensed engineer or architect covering specific structural components, including the roof, load-bearing walls, floor, foundation, fireproofing and fire protection systems, plumbing, electrical systems, waterproofing and exterior painting, and windows and doors, among others listed in §718.112(2)(g) [1]. The deadline for the first SIRS was December 31, 2024, for most existing associations, tied to the milestone inspection schedule for buildings reaching their 25- or 30-year mark [1]. Once the study is done, associations must present it to owners and fund reserves for those specific structural components at the level the study calculates, and the board can no longer vote to waive or reduce reserve funding for those items, a change from the old rule that let a majority of owners waive reserves entirely [1]. The Department of Business and Professional Regulation, Division of Condominiums, Timeshares, and Mobile Homes oversees condo association compliance and publishes guidance for associations working through these requirements [5]. If your building hasn't had its SIRS done yet, or you're not sure whether the deadline already passed for your association, confirm the current status and any extensions with your association's counsel, since the legislature has amended this statute more than once since 2022 and further changes are plausible. For a broader walkthrough of how SIRS interacts with the milestone inspection timeline, see our reserve study guide, and for the HOA-specific angle, see HOA reserve study.
Are HOA special assessments tax deductible?
Generally, no, not for the average unit owner. Special assessments paid to your condo or HOA for repairs, reserves, or capital improvements are treated like other homeowner association dues: they're a personal living expense, not a deductible one, on your individual federal tax return. The IRS doesn't have a specific provision letting owners deduct special assessments the way you might deduct mortgage interest or property taxes. There are narrow exceptions. If you rent out the unit, a special assessment tied to a repair (not a capital improvement) on that rental property may be deductible as a rental expense, and one tied to a capital improvement may be depreciable over time; this is genuinely IRS Publication 527 territory and specific to your situation [6]. If a special assessment is tied to a federally declared disaster and part of it funds casualty losses, there can be narrow casualty-loss rules too, though the Tax Cuts and Jobs Act tightened personal casualty loss deductions significantly for 2018 through 2025 . The honest, non-lawyer answer: don't assume deductibility, and don't file based on a board member's guess. Ask a CPA who's looked at your actual assessment notice and your ownership situation (primary residence vs. rental vs. investment).
How does a reserve study connect to milestone inspections?
They're separate reports that feed into each other. The milestone inspection is a structural safety check required for condo and cooperative buildings three stories or higher, generally due by the end of the year in which the building turns 25 years old (or 30 years old for buildings not within 3 miles of the coast), and every 10 years after that . The engineer or architect doing the milestone inspection produces a report on the structural condition of the building. The SIRS then uses that structural information, plus its own visual inspection, to build the reserve funding schedule for those same structural components. In practice, many associations time their first SIRS to follow shortly after their milestone inspection, since the milestone report often flags exactly the kind of deferred maintenance the SIRS needs to price out. If your building is approaching its 25- or 30-year mark, budget for both reports in the same planning cycle rather than treating them as separate, unrelated projects. Boards that stagger them thoughtfully (milestone first, SIRS shortly after, informed by the findings) tend to get a more accurate reserve number than boards that commission them independently with no coordination. Our reserve study for condo associations piece walks through sequencing this alongside milestone deadlines in more detail.
What happens if a board skips or delays the reserve study?
Under current Florida law, skipping the SIRS isn't really an option for condo associations three stories and up; it's a statutory requirement, not a board choice, and the December 31, 2024 deadline has already passed for most existing buildings [1]. Associations that missed it face exposure to owner complaints, potential DBPR action, and, practically, no legal basis to keep waiving reserves for structural items going forward. The bigger real-world risk isn't a fine, it's the special assessment that follows. Boards that delay the study and keep underfunding reserves eventually hit a wall: a roof fails, a parking structure needs urgent repair, or a subsequent milestone inspection flags something serious, and there's no reserve money to pay for it. That's when boards go to owners for $10,000, $30,000, sometimes higher per-unit assessments, often with a 30- to 60-day payment window, because there was no multi-year runway to spread the cost. Delay also compounds financially. Every year reserves stay underfunded, the gap between what's saved and what's needed grows, and the eventual catch-up contribution (or special assessment) gets larger, not smaller.
How should a board actually use the study once it's done?
Get the study, then act on it, which sounds obvious but is where a lot of boards drop the ball. The three things that actually matter: adopt the funding schedule into next year's budget, communicate the numbers to owners in plain language before the annual meeting, and calendar the update cycle (typically every 3 to 5 years, sooner if a major repair happens) so the numbers don't go stale. Boards juggling a SIRS, a milestone inspection deadline, insurance renewal, and a budget cycle at the same time often lose track of which document supports which decision, and owners get frustrated when nobody can produce a clear answer at the annual meeting. This is exactly the kind of scheduling and communication gap our $199 one-time Building-Specific Board Compliance Kit is built to close: it organizes your building's inspection and reserve deadlines, generates the owner notices Florida law requires, and keeps the SIRS funding schedule visible alongside your milestone timeline, so the board isn't reconstructing the story from scratch every meeting. It doesn't replace your engineer or reserve specialist; it organizes what they've already told you. Whatever system you use, the discipline that matters is simple: treat the reserve study as a living budget document, not a report that gets filed and forgotten until the next crisis.
What should boards check before hiring a reserve study firm?
Ask about credentials first. Florida's SIRS statute requires the visual structural inspection component to be performed by a licensed engineer or architect, so confirm the firm has that license on staff, more than a "reserve specialist" designation with no engineering credential behind it [1]. You can verify a Florida engineer or architect license through DBPR's licensing search [5]. Ask what's included in the component list, get a sample report from a similar building if possible, and get the cost and turnaround time in writing before signing. A rushed study done in a week or two for a large building is a warning sign; thorough site visits and cost research take time. Finally, ask how they handle updates. A firm that low-balls the initial study price but charges heavily for every update, or one that won't commit to an update cycle, can end up costing more over ten years than a firm with a fair ongoing relationship.
Frequently asked questions
What is a reserve study?
A reserve study is a professional report, usually by an engineer or reserve specialist, that inventories a building's major shared components, estimates remaining useful life and replacement cost for each, and produces a multi-year funding schedule. For Florida condos three stories or higher, the statutory version is called a Structural Integrity Reserve Study (SIRS), covering specific components under Fla. Stat. §718.112(2)(g).
What is a reserve study for an HOA?
For an HOA, a reserve study inventories shared assets the association is responsible for (roofs, clubhouses, pools, roads, retaining walls) and projects when each will need repair or replacement and how much that will cost. Florida's mandatory SIRS specifically applies to condominium associations with buildings three stories or taller, not generally to single-family HOAs, so confirm applicability with counsel for mixed or condo-style HOAs.
What is an HOA assessment?
An HOA assessment is money owed to the association, either as regular recurring dues that fund operations and reserves, or as a special assessment, a one-time additional charge levied when reserves can't cover a needed repair. Special assessments are common after milestone inspections or storm damage reveal costs beyond what's been saved.
What are HOA assessments used for?
Regular assessments cover day-to-day operating costs (landscaping, insurance, management fees) and reserve contributions for future big-ticket repairs. Special assessments cover specific, often urgent, shortfalls: a failed roof, storm damage beyond insurance proceeds, or structural repairs flagged by a milestone inspection or reserve study that reserves weren't funded to cover.
How much should an HOA have in reserves?
There's no universal dollar figure; the right amount depends on your specific reserve study. As a rule of thumb, reserve professionals often treat 70% or more "funded" (actual reserves versus the study's fully funded target) as healthy, 30 to 70% as a caution zone, and under 30% as a strong risk of a coming special assessment.
How much does a reserve study cost?
A full reserve study for a mid-size condo building commonly runs roughly $3,000 to $10,000 or more, depending on size and complexity, with SIRS studies (requiring a licensed engineer or architect) often at the higher end. Update studies without a new site visit typically cost less, sometimes just several hundred to a couple thousand dollars.
Are HOA special assessments tax deductible?
Generally no, for a primary residence, special assessments are a personal expense like regular dues and aren't federally deductible. Exceptions exist for rental properties (repair-related assessments may be deductible, capital ones depreciable) and narrow casualty-loss situations tied to federally declared disasters; check IRS Publication 527 and consult a CPA for your specific case.
What is the difference between a reserve study and a milestone inspection?
A milestone inspection is a structural safety check required for Florida condo and co-op buildings three stories or higher, generally due at 25 or 30 years and every 10 years after. A reserve study, including the statutory SIRS, uses inspection findings to build a funding schedule pricing out future repairs to those components; they're separate reports that work together.
When was the Florida SIRS deadline?
For most existing Florida condominium associations meeting the statutory criteria, the first Structural Integrity Reserve Study deadline was December 31, 2024, tied to Fla. Stat. §718.112. If your association missed it or you're unsure of your status, confirm current requirements and any legislative changes with your association's counsel, since amendments have occurred since 2022.
Can a condo board still waive reserves in Florida?
No, not for the structural components covered by SIRS. Current law removed the option for owners to vote to waive or reduce reserve funding for those specific items once the study is completed, a direct response to underfunded reserves identified after the Surfside collapse. Non-SIRS reserve items may still have different waiver rules; confirm specifics with counsel.
Who is qualified to do a Florida reserve study or SIRS?
The structural visual inspection portion of a SIRS must be performed by a licensed engineer or architect under Florida law. General (non-SIRS) reserve studies are often done by reserve specialists or credentialed reserve study firms. You can verify an engineer's or architect's Florida license through DBPR's licensing search.
How often should a reserve study be updated?
Most reserve professionals recommend a full study (with a new site visit) every 5 to 6 years, with lighter update studies in between using adjusted cost and inflation assumptions. After any major repair, storm event, or milestone inspection finding, it's worth updating sooner rather than waiting out the full cycle.
Sources
- Florida Senate, Florida Statutes Chapter 718.112: SIRS requirements, structural component list, reserve funding mandate, and elimination of reserve waivers for SIRS items
- Community Associations Institute (CAI): Industry advocacy and estimates on association reserve underfunding nationally
- Florida DBPR, Division of Condominiums, Timeshares, and Mobile Homes: State oversight of condo association compliance and licensee verification for engineers/architects
- IRS Publication 527, Residential Rental Property: Tax treatment of rental property repair expenses and capital improvements, relevant to special assessment deductibility for rentals
- IRS, Topic No. 515 Casualty, Disaster, and Theft Losses: Personal casualty loss deduction limited to federally declared disasters under the Tax Cuts and Jobs Act, 2018-2025
- Florida Senate, Florida Statutes Chapter 553.899: Milestone inspection timing requirements: 25 years (or 30 years if not within 3 miles of coastline) and every 10 years thereafter