Last updated 2026-07-24
TL;DR
A reserve study for an HOA is a professional inspection and funding plan that estimates the remaining life and replacement cost of shared components (roofs, pools, pavement) and tells the board how much to save each year. Studies cost roughly $3,000 to $20,000 depending on property size and complexity. Most Florida condo associations must fund reserves fully starting in 2025 under Fla. Stat. 718.112.
What is a reserve study?
A reserve study is a written report, usually prepared by an engineer or a reserve specialist, that inventories the major shared components of a community (roofs, roads, pools, elevators, siding, fencing) and estimates two things: how many years each component has left, and what it will cost to repair or replace it. The report then converts those estimates into a funding schedule, a year-by-year number showing how much the association should be putting into its reserve account. Think of it as a maintenance forecast plus a savings plan. It's not a home inspection and it's not an engineering certification of structural safety. It's a planning document. Most studies run 20 to 30 years out, because that covers the full replacement cycle of a roof or a repaving job. The two core outputs are the "physical analysis" (component list, condition, remaining useful life) and the "financial analysis" (current reserve balance, funding goal, recommended annual contribution). A good study also flags which components are structural versus cosmetic, which matters a lot in Florida condo law right now [1].
What is a reserve study for an HOA (and how is it different from a condo's)?
For a homeowners association (single-family homes or townhomes with shared common areas), a reserve study covers whatever the HOA actually owns and maintains: clubhouse, pool, private roads, retention ponds, entry monuments, sometimes a gate or fitness building. It does not usually cover the homes themselves, since those are individually owned. For a condominium, the study has to cover a lot more, because the association owns and insures the building structure itself: roof, load-bearing walls, floors, waterproofing, plumbing risers, in some cases windows. That's why Florida law treats condos and co-ops differently from HOAs for reserve funding purposes. Under Florida Statute 718.112(2)(f), condominium and cooperative associations with buildings three stories or higher must have a Structural Integrity Reserve Study (SIRS) done at least every 10 years, and the components covered by that SIRS cannot be waived or reduced by member vote anymore [1][1]. Traditional HOAs (not condos) are not covered by the SIRS mandate. If your community is an HOA of single-family homes, you're working from your governing documents and general prudence, not a state-mandated structural study. If you're not sure which category your community falls into, check your declaration and talk to association counsel, because "HOA" gets used loosely and some communities are legally condominiums even if they look like a townhome subdivision.
What is an HOA assessment? What are HOA assessments?
An HOA assessment is money the association charges owners, on top of whatever else, to cover costs. There are two flavors. Regular assessments (often called dues) are the recurring monthly or quarterly charge that funds operating expenses and reserve contributions. Special assessments are one-time, extra charges levied when there isn't enough in reserves (or operating funds) to cover a specific cost, like a new roof or storm damage repair. A reserve study is the tool that's supposed to prevent surprise special assessments. If the board funds reserves according to the study's schedule, the money for a 2040 roof replacement is already sitting in the account by 2040. Skip that funding, and the board eventually has to ask owners for a lump sum, often in the tens of thousands of dollars per unit, with 30 to 90 days to pay it. Florida law requires that condo association budgets include reserve line items for items identified in the SIRS, and (as of the 2024-2025 statutory changes) associations generally can't vote to waive or underfund those specific SIRS-covered reserves anymore [1]. For non-SIRS items and for HOAs generally, the association's declaration and bylaws control how assessments get approved. Read the actual language in yours before assuming a board can just impose one; some documents cap special assessments or require a membership vote above a certain dollar threshold.
How much should an HOA have in reserves?
There's no single statutory dollar figure that applies to HOAs the way there now is for condo SIRS-covered components. The honest answer is: enough to match what the reserve study says, funded on a schedule (full funding or a percent-funded target the board picks and discloses). Reserve specialists commonly talk about "percent funded," meaning the reserve balance divided by the ideal balance for where components are in their life cycle. National reserve-study guidance (Community Associations Institute and state reserve-study associations) generally treats anything above roughly 70% funded as a healthy zone, and anything under 30% funded as "weak" or at high risk of special assessments [2]. There's no legal requirement to hit 70%; it's an industry rule of thumb, not a statute. For Florida condos, the newer statutory language forces the issue for structural items: reserves for SIRS-covered components must be funded based on the study's findings, without the old opt-out. That effectively pushes many associations toward full funding on those line items whether the board likes the number or not [1][1]. For everything else, and for HOAs outside the condo statute, it comes down to what the board is willing to defend to owners: full funding costs more per month now, low funding risks a five-figure assessment later. A rough industry benchmark some reserve preparers use: aim to keep the reserve fund above roughly 30% of the fully-funded balance as a minimum cushion, treating anything below that as a red flag requiring a funding plan adjustment [2]. Again, that's a professional guideline, not Florida law, so confirm what your governing documents actually require.
How much does a reserve study cost?
| Small HOA (under 50 units, no structural/SIRS scope) | $1,500 to $4,000 | |
|---|---|---|
| Mid-size condo or HOA (50-200 units) | $4,000 to $10,000 | |
| Large or high-rise condo with SIRS scope | $8,000 to $25,000+ | |
| Update-only study (no new site visit, every 3-5 years) | $500 to $2,000 | These are industry-reported ranges, not fixed prices; get quotes, because the spread is wide and driven by building height, number of structural components, and whether an engineer has to sign off. A Structural Integrity Reserve Study specifically must be based on a visual inspection performed by a licensed engineer or architect, per Fla. Stat. 718.112(2)(g), which is part of why SIRS-scope studies tend to cost more than a basic HOA amenity study [1]. DBPR, Florida's Department of Business and Professional Regulation, licenses and regulates community association managers and publishes condominium reporting requirements; check its Division of Condominiums, Timeshares, and Mobile Homes section for current SIRS reporting forms and deadlines before you budget for a study [3]. Confirm current fee schedules and any state reporting costs with your association's counsel or manager, since these get updated. |
Reserve study pricing depends on property size, number of components, and whether it includes a physical site visit (a "Level I" full study) versus an update using existing data. Rough national and Florida ranges reported by reserve-study firms and industry associations: | Study type | Typical cost range |
Are HOA special assessments tax deductible?
For most owners, no. The IRS generally treats HOA regular assessments and special assessments on a personal residence as a nondeductible personal expense, the same way you can't deduct your own roof repair. There's no line on Schedule A for "HOA special assessment." There are narrow exceptions. If the property is a rental, the assessment (or the portion allocable to the rental use) is generally deductible as a rental expense, or depreciated if it's a capital improvement rather than a repair, following the ordinary rules in IRS Publication 527, Residential Rental Property [4]. If part of your home is used for a qualifying home office, a proportional share might factor into that calculation. And if the assessment funds a casualty-loss repair in a federally declared disaster area, a portion could interact with casualty loss rules, though those got narrower after the 2017 tax law changes. This isn't a substitute for a CPA's read of your specific situation. If a special assessment lands on your desk, don't assume it's deductible just because it's expensive; ask a tax preparer who can look at whether the property is a rental, a repair versus a capital improvement, and your specific state and federal filing situation.
How often does an HOA or condo need a reserve study done?
For Florida condominiums subject to the SIRS requirement, the study must be updated at least every 10 years, tied to the building's age and the mandated inspection schedule under Fla. Stat. 718.112 [1][1]. Many associations choose to do a full study more often, every 3 to 5 years, and cheaper "update" studies in between, because construction costs and component conditions change faster than a decade. HOAs without the SIRS mandate set their own schedule based on governing documents or board judgment. Industry best practice from groups like CAI generally recommends a full reserve study every 3 to 5 years with annual reviews of the funding plan in between, since material costs, insurance, and labor prices shift year to year [2]. A study done in 2019 and never updated is close to useless by 2026. Roofing costs, concrete, and labor have moved a lot since then, and a stale study will tell the board it needs less money than it actually does.
What happens if the HOA or condo board ignores the reserve study?
Nothing happens immediately, which is exactly the problem. There's no reserve police showing up the week after a board votes to underfund. What happens instead is slower and worse: the roof, pool deck, or structural component keeps aging, the gap between what's saved and what's needed keeps growing, and eventually a real repair need (storm damage, a failed inspection, a milestone inspection finding) forces the issue. At that point the board has three options, all bad compared to funding on schedule: a special assessment (often the largest single bill many owners will ever get from their association), a reserve loan (interest costs on top of the repair cost), or delaying the repair (which risks it getting worse, more expensive, or triggering safety and insurability problems). For Florida condos, the newer statutory language specifically closes the door on waiving SIRS-covered reserves, precisely because the state watched associations underfund for decades and then get hit with exactly this scenario after building failures prompted the current law [1]. If your board is weighing a study's recommendation against a lower number members would prefer to pay, get that trade-off in writing and get counsel's read on what your documents and Chapter 718 actually require before voting it down.
How do you read and use a reserve study once you have one?
Start with the component list and remaining useful life numbers. Cross-check them against what the board actually knows: if the study says the roof has 12 years left but you had a leak crew out twice last year, flag it for re-inspection rather than trusting the paper. Next, look at the funding plan page. It should show current reserve balance, percent funded, and a recommended contribution schedule (often shown as "full funding" versus a "baseline" or lower alternative). Boards sometimes get shown multiple funding scenarios; pick the one the board can actually defend to owners in a meeting, in writing, with the study's numbers attached. Building a simple compliance calendar off the study (inspection due dates, SIRS renewal date, budget adoption deadline, member notice deadlines) is genuinely one of the most useful things a board can do with the document, since a study that sits in a drawer for three years doesn't help anyone. A reserve study for condo association has extra layers (SIRS scope, milestone inspection tie-ins) worth reading closely if you're condo-specific rather than a pure HOA. If your board wants a simple way to turn the study's dates and numbers into a working calendar and communication plan without hiring another consultant, the $199 Building-Specific Board Compliance Kit at /board-kit-builder organizes the SIRS and milestone deadlines, reserve funding line items, and owner notice timeline from your existing study into one document. It doesn't replace the engineer or the reserve specialist who did your study, and it doesn't tell you whether your reserves meet every statutory threshold; it just keeps the dates and numbers from getting lost between board meetings.
Who can prepare a reserve study, and does it have to be a licensed professional?
For a general HOA reserve study (non-SIRS), there's no Florida statute requiring a specific license; many associations hire reserve-study firms, some of which employ credentialed reserve specialists (RS designation from the Community Associations Institute, or PRA from the Association of Professional Reserve Analysts), but the state doesn't mandate a license the way it does for SIRS work. For a Structural Integrity Reserve Study under Florida condo law, the inspection portion must be performed by a licensed engineer or architect, per Fla. Stat. 718.112(2)(g) [1]. This ties directly to the milestone inspection requirements under Fla. Stat. 553.899, which also require a licensed engineer or architect for buildings reaching 25 or 30 years old (30 inland, 25 within three miles of the coast, under most county implementations) [5]. DBPR maintains licensing information for engineers and architects through the relevant state boards, and its condominium division page is the place to check current SIRS filing and reporting requirements before hiring anyone [3]. Get references, ask for a sample report, and confirm the firm carries errors-and-omissions insurance before signing a contract.
How does a reserve study connect to Florida's milestone inspection and SIRS deadlines?
The two requirements are related but not the same thing. A milestone inspection, required under Fla. Stat. 553.899, is a structural safety check by a licensed engineer or architect, due when a condo or co-op building reaches 30 years old (25 years if within 3 miles of the coast), and every 10 years after [5]. A Structural Integrity Reserve Study, required under Fla. Stat. 718.112, is the reserve-funding document that has to be based on a visual inspection of specific structural components, due at least every 10 years for buildings 3 stories or taller [1][1]. In practice, a lot of associations schedule the two together, or use the milestone inspection engineer's findings to inform the SIRS component list, because it's more efficient to have one visit cover both. That's a scheduling choice, not a legal requirement to combine them; check with your engineer and your association's counsel about how your specific county and building height interact with both deadlines. For background on the county-by-county coastal distance rule and how age gets calculated, the milestone inspection guides on this site walk through the mechanics in more depth, and the Florida DBPR's condominium relief and SIRS timeline bulletin explains recent statutory adjustments in plainer language than the statute itself [6].
Frequently asked questions
What is a reserve study?
A reserve study is a professional report that inventories a community's shared components (roofs, pools, roads, elevators), estimates each one's remaining life and replacement cost, and produces a year-by-year funding schedule showing how much the association should save. It's a planning and budgeting tool, not a certification of current safety.
What is a reserve study for an HOA?
For a homeowners association, a reserve study covers common-area assets the HOA actually owns: clubhouse, pool, private roads, retention ponds, fencing, sometimes a gate. It does not cover individually owned homes. It's different from a condo reserve study, which must also cover the building structure itself under Florida law.
What is an HOA assessment?
An HOA assessment is a charge to owners to cover association costs. Regular assessments are recurring dues covering operating expenses and reserve contributions. Special assessments are one-time charges levied when reserves or operating funds fall short of a specific cost, like storm damage or a roof replacement.
How much should an HOA have in reserves?
Enough to match the funding schedule in a current reserve study. Industry guidance (CAI and reserve-specialist associations) generally treats above roughly 70% funded as healthy and below about 30% funded as high-risk for special assessments, though these are professional benchmarks, not Florida statute, except where SIRS-covered condo reserves now require full funding by law.
How much does a reserve study cost?
Reserve study costs typically run $1,500 to $4,000 for a small HOA amenity study, $4,000 to $10,000 for mid-size properties, and $8,000 to $25,000 or more for large condos requiring a Structural Integrity Reserve Study with a licensed engineer's inspection. Update-only studies without a site visit often cost $500 to $2,000.
Are HOA special assessments tax deductible?
Generally no, for a personal residence. The IRS treats them as a nondeductible personal expense. Exceptions can apply if the property is a rental (deductible or depreciable as a rental expense) or in limited casualty-loss situations. Confirm your specific case with a CPA rather than assuming either way.
What's the difference between a reserve study and a SIRS?
A reserve study is the general funding-plan document; a Structural Integrity Reserve Study (SIRS) is a specific, statutorily defined version required for Florida condo and co-op buildings three stories or higher under Fla. Stat. 718.112. SIRS must be based on a licensed engineer or architect's visual inspection and covers specific structural components that can't be waived from funding.
Does every HOA in Florida need a reserve study?
No. The SIRS mandate under Fla. Stat. 718.112 applies to condominium and cooperative associations, not traditional single-family or townhome HOAs. HOAs may still choose to commission a reserve study as good practice or because their governing documents require one; check your declaration and consult counsel.
How often should a reserve study be updated?
Florida condos under SIRS must update at least every 10 years. Many associations and industry groups like CAI recommend a full study every 3 to 5 years with annual funding-plan reviews in between, since construction and labor costs shift meaningfully year to year and a stale study understates true funding needs.
Can a board vote to waive or reduce reserve funding?
For Florida condo associations, reserves for components covered by a Structural Integrity Reserve Study can no longer be waived or reduced by member vote under current Fla. Stat. 718.112. For non-SIRS reserve items and for HOAs generally, waiver rules depend on the governing documents; confirm specifics with association counsel.
Who is qualified to perform a reserve study?
General HOA reserve studies are often done by credentialed reserve specialists (RS or PRA designations) without a specific state license requirement. A Florida SIRS inspection specifically must be performed by a licensed engineer or architect under Fla. Stat. 718.112(2)(g), tying it to the same licensing standard used for milestone inspections.
What happens if a Florida condo association skips its SIRS?
Skipping a legally required SIRS exposes the association to compliance risk with the state and county, and it removes the documented basis for reserve funding decisions, which can complicate insurance renewals, lender approvals for unit sales, and defense against owner objections to future special assessments. Confirm your county's enforcement approach and current deadlines with counsel.
Sources
- Florida Senate, Florida Statutes Section 718.112 (condominiums; reserve requirements): SIRS-covered reserve components cannot be waived or reduced by member vote and must be funded per the study
- Community Associations Institute, CAI Reserve Fund Planning fact sheet: Industry benchmarks treating above ~70% funded as healthy and below ~30% as high-risk, and recommending full studies every 3-5 years
- Florida DBPR, Division of Condominiums, Timeshares, and Mobile Homes, Milestone Inspection and SIRS reporting guidance: State licensing and condominium reporting requirements, including SIRS filing guidance
- IRS Publication 527, Residential Rental Property: HOA assessments on rental property may be deductible or depreciable as rental expenses, unlike personal residence assessments
- Florida Senate, Florida Statutes Section 553.899 (milestone inspections): Milestone inspections are required at 30 years (25 years if within 3 miles of coast) and every 10 years thereafter, performed by a licensed engineer or architect
- Florida Senate, Florida Statutes Section 718.112, 2023 amendment history (SB 154 / reserve funding changes): Statutory adjustments to SIRS timelines and reserve funding rules enacted in the 2023 legislative session
- Florida DBPR, Condominium Reserve Study and Milestone Inspection FAQ bulletin: State guidance explaining how milestone inspection findings and SIRS component lists commonly get coordinated