Last updated 2026-07-24

TL;DR
A reserve study is an engineering and financial analysis that tells a condo or HOA board what its major components (roof, paving, painting, structural) will cost to repair or replace, and when. Florida law now requires condos 3+ stories to get a structural integrity reserve study (SIRS) at least every 10 years and to fully fund those reserves starting in 2025 (Fla. Stat. 718.112) [1].
what is a reserve study?
A reserve study is a written report, usually built from a physical inspection plus cost estimating, that lists every major shared component in a community (roof, elevators, pool deck, pavement, painting, structural elements) along with its estimated remaining useful life and the cost to repair or replace it. The study then tells the board how much money it should be setting aside each year so the funds are actually there when the roof or the parking garage needs work. Most studies fall into two camps: a full study (site visit, component inventory, cost estimates, funding plan) or an update study (revisits an existing study, adjusts costs and timelines). A full study for a mid-size condo typically runs every 3 to 5 years for HOAs under Chapter 720, though Florida now mandates a specific structural version, the SIRS, for condos and cooperatives 3 stories and taller under Chapter 718 [1]. The output is usually two things: a physical/technical section (what components exist, condition, remaining life) and a financial section (current reserve balance, recommended annual contribution, funding percentage). Boards use the financial section to set the reserve line item in the annual budget. For deeper background on how this interacts with statute-driven reserve rules, see reserve study and hoa reserve study.
what is a reserve study for an hoa?
For a homeowners association (single-family, townhome, or non-condo community governed by Chapter 720), a reserve study looks a lot like the condo version but the statute is less prescriptive. Florida requires HOAs to reserve for components the board is obligated to maintain if reserves are established in the budget, but Chapter 720 does not mandate the structural inspection regime that Chapter 718 now imposes on condos [2]. That matters practically: an HOA board can still vote, by a majority of the membership, to waive or reduce reserves in a given year unless the governing documents say otherwise. A condo board under the post-2022 reforms generally cannot waive SIRS-based structural reserves anymore. An HOA reserve study typically covers roofs, roads, retention ponds, clubhouse HVAC, pool equipment, fencing, and painting cycles. If your community has a rec center, gate, or private roads, those get their own line items with their own replacement cost estimates and timelines. See hoa reserve study for the HOA-specific mechanics, and reserve study for condo association for the condo side.
what is an hoa assessment (and how is it different from a reserve contribution)?
An HOA assessment is the money a homeowners association charges each member to cover the community's expenses. There are two basic kinds: the regular assessment (your normal monthly or quarterly dues, which fund operating costs and, ideally, reserves) and the special assessment (a one-time or short-term extra charge levied when the regular budget and reserves can't cover a specific cost). Reserve contributions are usually baked into the regular assessment as a line item. When reserves fall short, either because they were underfunded for years or because a big unplanned repair hits (a roof failure, storm damage, a required structural repair after a milestone inspection), the board levies a special assessment to close the gap. So a reserve study is really the tool that determines whether your regular assessment is enough, or whether a special assessment is coming. Boards that skip or ignore reserve studies tend to get blindsided by five- and six-figure special assessments. Boards that fund reserves properly smooth that cost into predictable annual dues increases instead. For more on how special assessments actually get levied and what limits apply, see hoa special assessment.
how much should an hoa or condo have in reserves?
There's no single dollar figure that works across communities; the honest answer is 'whatever your reserve study says the fully funded number is for your specific components,' because a 40-unit 1970s building and a 400-unit 2015 tower have completely different exposure. But the industry benchmark most reserve specialists cite is the 'percent funded' ratio: reserves on hand divided by the fully funded ideal, based on each component's age and remaining life. Community Associations Institute research and reserve-study professionals generally treat 70% funded or higher as healthy, 30-70% as a caution zone, and under 30% as high risk for a special assessment. There's honestly no perfect consensus threshold in the data, different reserve specialists draw the caution line in slightly different places, but under 30% funded is where nearly everyone agrees trouble is likely. For Florida condominiums specifically, the law changed the conversation. Since 2022's SB 4-D and SB 154 reforms, condos and cooperatives with buildings 3 stories or higher must complete a milestone inspection and a SIRS, and starting with reserve budgets adopted on or after December 31, 2024 for many associations (with some deadlines extended into 2025 legislative fixes), they generally cannot fund reserves below what the SIRS says is needed for the structural components it covers [1] [3]. That's a legal floor, not a suggestion. Practically, most experienced managers will tell a board: don't just meet the statutory minimum on structural items, fund the whole component list (roofing, paving, painting, elevators, structural) to at least 50-70% funded if you want to avoid a surprise assessment in a bad year.
what are hoa assessments used for, and what triggers a special one?
Regular assessments cover the community's ordinary operating budget: insurance, landscaping, management fees, utilities for common areas, and the reserve contribution. Special assessments get triggered by one of a few things: a reserve shortfall discovered mid-cycle, storm or casualty damage not fully covered by insurance, a required repair identified in a milestone inspection or SIRS that reserves don't cover, or a discretionary capital improvement the membership approves. Under Florida law, condo boards generally have authority to levy special assessments for emergencies and required repairs without a membership vote, though the amount and notice requirements depend on the association's declaration and Chapter 718 provisions [1]. HOAs under Chapter 720 usually need to check their declaration for caps on special assessment amounts before a membership vote is required. The practical trigger boards should watch for: any time a milestone inspection (required at 25 years for buildings within 3 miles of the coast, 30 years elsewhere, per most local ordinances tracking the state framework, and every 10 years after) flags structural deficiencies, that report becomes the basis for either a reserve draw or a special assessment [4]. If the reserve study didn't already have that repair funded, the assessment is coming. Read more on the mechanics in hoa special assessment and on insuring against the risk in condo special assessment insurance.
how much does a reserve study cost?
| Basic HOA reserve study (non-structural) | $2,500 - $8,000 | Reserve specialist / RS professional | |
|---|---|---|---|
| Full condo reserve study | $5,000 - $15,000 | Reserve specialist, may include engineer review | |
| Structural Integrity Reserve Study (SIRS) | $8,000 - $25,000+ | Licensed engineer or architect (required by statute) [1] | |
| Update study (no new site visit) | 30-50% of full study cost | Same firm that did the original study | Because pricing varies so much by region and building complexity, get at least two quotes from Florida-licensed providers and confirm the scope matches what your governing documents and Chapter 718 actually require before signing. |
Reserve study costs in Florida generally run from about $3,000 to $20,000+, depending on the size of the property, the number of components inventoried, and whether it's a full study (with an on-site inspection) or a desktop update. A small HOA with a handful of components might pay closer to $2,500 to $5,000. A large high-rise condo with elevators, a parking structure, seawalls, and full structural components covered under SIRS can run $10,000 to $25,000 or more, especially once the study needs a licensed engineer or architect to certify the structural portions. The SIRS specifically must be performed by a licensed engineer or architect, per Florida Statute 718.112(2)(g), and it has to inspect defined structural components: roof, load-bearing walls, floor, foundation, fireproofing, electrical systems, plumbing, waterproofing, exterior painting, windows, and more [1]. That licensing requirement is part of why SIRS costs tend to run higher than a traditional 'reserve study' that only covers cosmetic or mechanical components. Many boards also budget for update studies every 3 to 5 years between full studies, which cost less (often 30-50% of a full study) because they don't require a full new site inspection. Here's a rough cost range comparison boards can use for budgeting conversations: | Study type | Typical cost range | Who performs it |
are hoa special assessments tax deductible?
Generally, no. For a personal residence, special assessments from an HOA or condo association are treated like other costs of maintaining your home and are not deductible on your federal income tax return, according to IRS guidance on rental and personal-use property [5]. The IRS treats regular HOA dues the same way: not deductible for a home you live in. There are two narrow exceptions worth knowing. If you rent out the unit, a special assessment that counts as a repair or operating expense may be deductible as a rental expense in the year paid, while an assessment that's a capital improvement (a new roof, a structural upgrade) generally has to be depreciated over time rather than deducted immediately [5]. If part of your home is used for a qualifying home office, a proportional share of HOA assessments tied to that use may factor into the home office deduction calculation. This is genuinely a case-by-case tax question, and the answer depends on whether the property is a personal residence, a rental, or mixed use, and whether the assessment is a repair or a capital improvement. Talk to a CPA before assuming either way; the IRS instructions for Schedule E and Publication 527 are the right starting references [5].
what's the difference between a milestone inspection and a reserve study (or SIRS)?
A milestone inspection is a one-time structural safety check (repeated every 10 years) required for condo and co-op buildings 3 stories or taller in Florida, done by a licensed architect or engineer, focused on finding substantial structural deterioration [4]. It happens at 25 years of age for buildings within 3 miles of the coastline, and 30 years for buildings farther inland, with the specific mileage and timing standards set at the local level in many counties, so confirm the exact trigger with your county building department. A SIRS (Structural Integrity Reserve Study) is the reserve-funding companion to that inspection. It's required under Fla. Stat. 718.112(2)(g) for the same class of buildings, must be updated at least every 10 years, and specifically covers the structural component list named in the statute: roof, load-bearing walls, primary structural members, floor, foundation, fireproofing and fire protection systems, plumbing, electrical, waterproofing, exterior painting, and windows/exterior doors, among others [1]. A traditional (non-SIRS) reserve study is broader and less legally rigid; it covers everything from pool furniture to paving to clubhouse roofs, and it's not required to be done by a licensed engineer unless your documents say so. In practice, most condos now need all three: the milestone inspection (structural safety check), the SIRS (structural reserve funding plan), and often a general reserve study (everything else). See milestone inspections content and reserve study for how these pieces fit together.
what happens if a board skips or delays the reserve study?
Skipping the SIRS isn't really optional anymore for qualifying condos. Florida Statute 718.112(2)(g) requires associations to have the SIRS completed and to disclose the results to owners, and failure to do so can expose the board to a claim of breach of fiduciary duty and can jeopardize the association's ability to sell units (some lenders and title companies now ask for milestone/SIRS status before closing) [1]. For traditional HOA reserve studies under Chapter 720, there's no equivalent statutory mandate to conduct the study itself, but if the association has voted to fund reserves, the board still has a fiduciary duty to manage that money reasonably, and an outdated or nonexistent reserve study makes it hard to defend the reserve contribution amount if an owner challenges it. The real-world cost of delay is almost always the same: the repair doesn't get cheaper by waiting, and the gap between what's saved and what's needed becomes a special assessment that lands on owners all at once instead of being spread over years. Buildings that deferred structural maintenance and reserve funding for decades are part of why the legislature passed the 2022 reforms in the first place, in direct response to the Champlain Towers South collapse in Surfside.
who actually performs a reserve study or SIRS in Florida?
For a SIRS, the law is specific: it has to be performed by a person qualified to perform such analysis, generally a licensed engineer or architect in Florida, because the statute requires visual inspection of structural components and professional judgment about remaining useful life and deficiencies [1]. DBPR's Division of Florida Condominiums, Timeshares, and Mobile Homes has issued guidance and FAQs on this requirement that boards should check for the latest procedural detail. For a general (non-SIRS) reserve study, Florida doesn't require a specific license. Many boards hire a Reserve Specialist (RS) credentialed through the Community Associations Institute, or a licensed engineer/contractor who does reserve work as part of a broader practice. There's no state licensing board specifically for 'reserve study preparer' the way there is for engineers. Boards should always confirm two things before hiring: that the person doing the SIRS is currently licensed as an engineer or architect in Florida (checkable through DBPR or the Florida Board of Professional Engineers), and that the scope of work in the contract actually matches what the statute requires, not a lighter version. A cheap SIRS that skips required components is worse than no SIRS, because it creates a false sense of compliance.
how do boards use the reserve study to set the annual budget?
The reserve study's financial section usually gives the board a recommended annual contribution figure, often shown two ways: the 'straight-line' or 'component' funding method (save exactly what's needed for each item on its own schedule) and the 'cash flow' or 'pooled' method (all reserve money pooled together, spent as needed across components). Florida condo law leans toward requiring adequate funding regardless of method for the SIRS-covered structural components specifically. A board's practical workflow each budget cycle: pull the current reserve study or its most recent update, compare current reserve balances against the recommended balance for each component, and set next year's assessment to close any gap over a reasonable number of years (many reserve specialists suggest closing a shortfall over 3-5 years rather than one brutal special assessment, where the statute and cash position allow it). This is also where organizing the paperwork actually matters day to day. A board juggling a milestone inspection report, a SIRS, insurance renewal deadlines, and a reserve budget vote all in the same year benefits from having those documents and dates in one place rather than scattered across three committee members' inboxes. That's the specific gap the $199 Building-Specific Board Compliance Kit is built to close: it doesn't replace the licensed engineer who does your SIRS or the reserve specialist who does your study, but it organizes the deadlines, tracks disclosure requirements, and keeps the board's compliance calendar straight so nothing falls through a committee handoff.
how often does a reserve study or SIRS need to be updated?
A SIRS must be performed at least once every 10 years for qualifying condo and cooperative buildings under Fla. Stat. 718.112(2)(g), timed to the same 10-year cycle as the recurring milestone inspection [1] [4]. Some associations choose to update it more frequently, every 3-5 years, especially if a major repair happens mid-cycle and the component inventory needs to reflect the new roof or new elevator that just went in. General (non-SIRS) reserve studies for HOAs and for non-structural condo components don't have a statutory refresh clock in Florida, but the reserve-study industry standard, per National Reserve Study Standards guidance used by most credentialed preparers, recommends a full study every 5 years with an update (no site visit) in the interim years. Waiting longer than that tends to produce a study that's badly out of step with real material and labor costs, especially given how much construction costs have moved since 2020. An old study's numbers can be dangerously optimistic.
Frequently asked questions
What is a reserve study?
A reserve study is a report, usually done by a reserve specialist or licensed engineer, that inventories a community's major shared components (roof, paving, structural elements, elevators), estimates remaining useful life and replacement cost, and recommends how much the association should be saving each year so funds are ready when repairs are due.
What is a reserve study for an HOA?
For an HOA under Florida Chapter 720, a reserve study covers components the association is responsible to maintain (roofs, roads, amenities, painting) and calculates a recommended annual reserve contribution. Unlike condo SIRS rules, Chapter 720 doesn't mandate the study itself, though funded reserves must still be managed prudently.
What is an HOA assessment?
An HOA assessment is a charge levied on members to fund the association's expenses. Regular assessments cover ongoing operating costs and reserve contributions; special assessments are one-time or short-term charges for costs regular reserves and budget don't cover, such as storm damage or a reserve shortfall.
How much should an HOA have in reserves?
There's no universal dollar figure; it depends on your components' age and replacement cost per your reserve study. As a benchmark, industry guidance generally treats 70% or more of the 'fully funded' ideal as healthy, 30-70% as caution, and under 30% funded as high risk for a special assessment.
How much does a reserve study cost?
Basic HOA reserve studies typically run $2,500 to $8,000. Full condo reserve studies run roughly $5,000 to $15,000. A Structural Integrity Reserve Study (SIRS), which must be done by a licensed engineer or architect under Fla. Stat. 718.112, often costs $8,000 to $25,000 or more depending on building size.
Are HOA special assessments tax deductible?
Generally no, for a personal residence. The IRS treats HOA dues and special assessments as nondeductible personal living expenses. Exceptions can apply for rental properties (as an operating expense or depreciated capital improvement) or a qualifying home office. Confirm with a CPA for your specific situation.
What is the difference between a SIRS and a regular reserve study?
A SIRS is a Florida-mandated structural reserve study, required for condos and co-ops 3+ stories, covering a specific list of structural components (roof, foundation, load-bearing walls, plumbing, electrical, waterproofing) and must be done by a licensed engineer or architect. A regular reserve study is broader and covers non-structural items too, without that licensing requirement.
Who is required to complete a milestone inspection and SIRS in Florida?
Condominium and cooperative associations with buildings 3 stories or higher must complete a milestone inspection (at 25 years if within 3 miles of the coast, 30 years otherwise, then every 10 years) and a SIRS under Fla. Stat. 718.112. Confirm exact local timing thresholds with your county building department.
Can a Florida condo board waive reserve funding?
For structural components covered by a completed SIRS, associations generally cannot vote to waive or reduce that funding once required by statute. For non-SIRS reserve items, and for most HOAs under Chapter 720, the membership can often still vote to waive or reduce reserves unless governing documents say otherwise. Confirm with association counsel.
How often does a reserve study need to be updated?
A SIRS must be updated at least every 10 years, matching the milestone inspection cycle. General reserve studies have no Florida statutory refresh requirement, but industry standard practice recommends a full study every 5 years with lighter update studies in between.
What happens if my association skips the SIRS?
Skipping a required SIRS can expose board members to fiduciary duty claims, trigger disclosure violations under Fla. Stat. 718.112, and create problems for owners trying to sell or refinance units, since some lenders now check milestone/SIRS status before closing.
Does a reserve study cover hurricane or storm damage?
No. A reserve study plans for predictable wear and scheduled replacement of components, not sudden casualty losses. Storm damage is typically handled through property insurance first, with a special assessment covering any gap between insurance proceeds and repair costs.
Sources
- Florida Senate, Florida Statutes Chapter 718.112: SIRS requirement, structural component list, engineer/architect licensing, and reserve funding mandate for condos 3+ stories
- Florida Senate, Florida Statutes Chapter 720: HOA reserve funding and waiver provisions under Chapter 720
- Florida Senate, SB 4-D (2022) and related reserve funding legislation: 2022 reform requiring full reserve funding for SIRS components starting with reserve budgets adopted after December 31, 2024
- Florida Senate, Florida Statutes Chapter 553: Milestone inspection age and coastal-mileage thresholds for buildings 3 stories or taller
- IRS, Publication 527, Residential Rental Property: Tax treatment of HOA dues and special assessments for personal residences and rental property