CAI reserve study standards: what Florida boards need to know

Last updated 2026-07-24

What is a reserve study?

A reserve study is a financial and physical analysis of a building's shared components (roof, paving, painting, structural elements, plumbing risers, and so on) that projects when each one will need repair or replacement and how much that will cost. A good study gives a board two things: a physical condition assessment of each major component, and a funding plan showing what the association should be depositing into reserves each year to pay for it without a surprise special assessment. The practice grew up around standards published by Community Associations Institute (CAI), a national nonprofit that represents HOAs and condo associations. CAI's National Reserve Study Standards, developed with input from reserve professionals across the country, define what should be in a study, how components get grouped, and the difference between funding methods like the "component method" and the "cash flow method." These are industry best-practice standards, not law. No state requires a study to say "prepared per CAI standards" on the cover page. In Florida, the legal requirement is separate and, for condominiums, considerably more specific. Florida Statutes 718.112(2)(g) and the newer structural integrity reserve study rules in 718.103 and 718.112 spell out exactly which components must be studied, who can perform the inspection portion, and how reserves must be funded. A board that hires a reserve specialist trained on CAI methodology is often getting a well-organized study, but that study still has to satisfy the Florida statute, more than the national standard. For background on how the two frameworks differ in practice, see our reserve study explainer.

What is a reserve study for an HOA (versus a condo)?

A reserve study for an HOA looks at the same basic question, how much money should the association be setting aside, but the legal stakes are different depending on the type of association and the state. In Florida, single-family home HOAs are governed by Florida Statutes chapter 720, and the reserve rules there are much looser than the condo rules in chapter 718. Homeowners' associations can generally still vote to waive or reduce reserves in many circumstances, and there's no SIRS equivalent forcing homeowner associations to fund structural components on a fixed schedule the way condos now must. Condominium associations face the harder rule. Since the Surfside collapse in 2021 and the legislative response (SB 4-D in 2022, later amended by SB 154 in 2023), condo associations 3 stories or higher have to complete a milestone inspection and a Structural Integrity Reserve Study, and once that SIRS is done, the board generally cannot vote to waive or underfund reserves for the components it covers. That's a meaningful difference from the CAI approach, which treats funding levels as a board and owner decision within a range of acceptable practice. If your association is an HOA rather than a condo, don't assume you're off the hook entirely. Many HOAs with condo-style buildings (townhomes with shared roofs, for instance) can trigger condo statute obligations depending on how the community is legally structured. Check with association counsel before assuming chapter 720's lighter rules apply. Our HOA reserve study page walks through that distinction in more detail.

What is an HOA assessment, and what's the difference between regular and special assessments?

An HOA assessment is the fee owners pay to the association to cover operating expenses and reserves. Most people mean one of two things when they say "assessment." A regular assessment is the recurring due, usually monthly or quarterly, budgeted every year and baked into the association's normal financial cycle. A special assessment is a one-time (or sometimes installment) charge levied outside the regular budget, usually because there isn't enough in reserves to cover an unexpected or underfunded expense, like a roof replacement, a concrete restoration project, or an insurance shortfall after a storm. Special assessments are legal and common in Florida, but they're also the single biggest source of owner anger and litigation. Florida Statutes 718.116 covers assessment obligations generally, and 718.112(2)(g) governs how reserve-related decisions have to be disclosed to owners. A board that keeps reserves properly funded, ideally guided by an actual reserve study rather than a guess, is far less likely to need a large special assessment later. For a full breakdown of how special assessments get approved and what notice owners are entitled to, see HOA special assessment. One practical note boards often miss: a special assessment doesn't erase the underlying SIRS obligation. If a board levies a special assessment to cover a shortfall but doesn't also correct the ongoing reserve contribution schedule, it's likely to be back in the same position at the next study cycle.

How much should an HOA (or condo) have in reserves?

There's no single dollar figure that applies to every building, because reserves scale with the size, age, and component mix of the property. The honest answer is: enough to fund 100% of the components' remaining useful life value by the time they need replacement, according to whatever funding plan (straight-line component method or pooled cash-flow method) the study recommends. For Florida condominiums, though, the law now sets a floor for certain items. Florida Statutes 718.112(2)(g) requires SIRS reserves for the components listed (roof, load-bearing walls, primary structural members, floor, foundation, fireproofing/fire protection systems, plumbing, electrical systems, waterproofing, exterior painting, and windows, among others specified) to be funded at the full amount recommended by the study, with no ability to pool those funds with non-SIRS reserve items and no board or owner vote to reduce or waive them below the required level. That's a sharp break from the pre-2022 rule, when owners could vote annually to underfund or waive reserves almost entirely. One widely cited industry rule of thumb, used informally by reserve professionals (including many trained under CAI methodology) is that a reserve fund is considered "healthy" around 70% funded relative to its fully funded balance, with anything under roughly 30% flagged as a risk of special assessments or deferred maintenance. That threshold isn't in Florida statute; it's an industry convention, so treat it as a benchmark for conversation with your reserve provider, not a legal target. The legal target for SIRS components in Florida condos is full funding of the study's recommended reserve, full stop. HOAs under chapter 720 have more flexibility. Boards there can generally still vote each year to reduce or waive reserve funding (check your bylaws and 720.303), which is exactly why so many single-family HOAs end up hit with large special assessments after a big storm or a major system failure. For guidance on catching up an underfunded reserve account without wrecking the annual budget, see florida condo reserve fund relief.

How much does a reserve study cost in Florida?

Cost depends heavily on building size, number of components, and whether the study includes the structural engineering inspection required for SIRS or just a financial reserve analysis. As a rough range reported across the reserve study industry and consistent with what Florida licensed engineering and reserve firms have quoted publicly, a basic reserve study for a small association can run $3,000 to $8,000, while a full SIRS for a mid-size or high-rise condo, which typically requires a licensed engineer or architect to physically inspect structural components under Florida Statutes 718.112(2)(g), commonly runs $10,000 to $30,000 or more depending on square footage, number of buildings, and site access. A few cost drivers matter more than people expect. Buildings with more distinct structural systems (parking garages, multiple wings, seawalls) cost more to study because each component needs its own inspection and remaining-life estimate. Coastal buildings often cost more too, because engineers spend more time assessing corrosion, waterproofing, and balcony conditions in salt-air environments. And a rushed timeline, common right before a statutory deadline, can push prices up because engineering firms are backlogged. The cheapest option is rarely the smartest one here. A reserve study is the document your board will use to defend funding decisions to owners for years; a firm that cuts corners on the physical inspection can leave your association exposed if a component fails early or a lender or buyer's attorney later questions the study during a unit sale. For a plain-language walk-through of what a study should include and how to read one once you have it, see reserve study for condo association.

Are HOA or condo special assessments tax deductible?

Generally, no, not for the individual unit owner, and this is one of the most common misunderstandings boards run into when owners get hit with a large bill. Special assessments used for capital improvements or reserve funding are typically treated by the IRS as additions to the owner's cost basis in the property, not as a deductible expense, similar to how a home improvement isn't deductible when you pay for it but reduces your taxable gain when you sell. There are narrow exceptions. If a portion of a special assessment is specifically for repairs (not improvements) on a property the owner rents out, that portion may be deductible as a rental expense in the year paid, subject to normal IRS rules distinguishing repairs from capital improvements. IRS Publication 527 (Residential Rental Property) covers how repairs versus improvements are treated for a rental unit, and IRS guidance on cost basis (see IRS Topic No. 703) covers how capital assessments are added to basis for a primary residence. This isn't tax advice, and boards should never tell owners how to treat an assessment on their personal returns. Point owners to a CPA or tax preparer, and keep clean records of what each assessment was for (capital project versus operating shortfall versus insurance deductible) because that documentation is exactly what an owner's accountant will need.

What are CAI's National Reserve Study Standards, exactly?

CAI's National Reserve Study Standards describe a recommended process: a site visit and physical inspection of major components, an estimate of useful life and replacement cost for each, and a funding plan recommendation using either the component method (funding each item separately toward its individual replacement cost) or the cash flow method (pooling all reserve funds together and testing the plan against a projected disbursement schedule over 20 to 30 years). CAI itself doesn't license or regulate reserve preparers nationally; that's left to states. Some states, like California, have their own statutory reserve study requirements (Civil Code 5550) that overlap heavily with CAI practice. Florida's approach is different in one big way: since the SIRS law took effect, Florida explicitly requires a physical inspection portion of the study for condominiums 3 stories and up to be performed or supervised by a licensed engineer or architect, more than a reserve specialist. That requirement comes from Florida Statutes 718.112(2)(g) and is echoed in guidance from Florida's Department of Business and Professional Regulation (DBPR), which regulates condominium associations. So a Florida board evaluating a reserve study proposal should ask two separate questions: does the firm follow sound reserve methodology (the CAI-style component analysis and funding math), and does the engineer or architect on the team hold an active Florida license, since that's the part the statute actually requires. A well-run reserve firm covers both, but they're legally distinct requirements.

How does Florida's SIRS law differ from a standard CAI-style reserve study?

Feature	Standard CAI-style reserve study	Florida SIRS (ch. 718)
Legal requirement	Voluntary industry standard	Mandatory for condos 3+ stories under Fla. Stat. 718.112(2)(g)
Who inspects	Reserve specialist (may or may not be an engineer)	Licensed engineer or architect required for the physical inspection
Components covered	Board's discretion, often all reusable/replaceable items	Specific list set by statute: roof, structure, waterproofing, electrical, plumbing, fireproofing, and more
Funding flexibility	Board/owners can often adjust contribution levels annually	No waiver or reduction below the study's recommended level once SIRS applies
Pooling allowed	Yes, common cash-flow method	No, SIRS reserve items cannot be pooled with non-SIRS reserves
Update frequency	Typically recommended every 3-5 years	Every 10 years per statute, though many boards update sooner	The upshot: a Florida condo board that hires a CAI-trained reserve professional is likely getting good methodology, but the finished product has to be checked against the statute line by line, ideally with association counsel reviewing the report before it's presented to owners. A study that would satisfy a board in Ohio or Colorado might still miss a required Florida component or funding rule.

Who has to get a reserve study or SIRS in Florida, and when?

Condominium associations with buildings 3 stories or taller had to complete their first milestone inspection and Structural Integrity Reserve Study by December 31, 2024, under the timeline set in Florida Statutes 553.899 and 718.112, with some associations granted brief extensions under later legislative fixes (SB 1103, 2025). After that first SIRS, the statute calls for the study to be updated at least every 10 years, and the milestone structural inspection follows its own separate clock tied to building age and distance from the coast (generally 25 years for coastal buildings, 30 years for others, then every 10 years after). Smaller condo buildings under 3 stories, and most single-family HOAs under chapter 720, are not swept into the SIRS mandate, though local building departments can still require age-based recertification (Miami-Dade and Broward counties have run their own 40-year recertification programs for decades, independent of the 2022 state law). Boards should confirm both the statutory milestone/SIRS timeline and any county-level recertification rule that might apply on a shorter clock. Our milestone inspections hub covers the age and height triggers in detail if you're not sure which deadline applies to your building.

What happens if a board ignores CAI standards or Florida's SIRS requirements?

Ignoring CAI's voluntary standards carries no legal penalty by itself, since they aren't law. Ignoring Florida's SIRS requirement is a different matter entirely. Florida Statutes 718.112(2)(g) makes the structural integrity reserve study and its funding requirements mandatory, and DBPR has enforcement authority over condominium associations that fail to comply, which can include administrative fines and, in serious cases, referral for further legal action. Beyond the regulatory risk, there's a practical one: lenders and title companies increasingly ask for SIRS and milestone inspection status before closing on a unit sale or refinance, following guidance changes from Fannie Mae and Freddie Mac after Surfside tightened their condo project review standards. A building that can't produce a current SIRS or milestone report risks owners being unable to sell or refinance, which turns a compliance problem into a market-value problem fast. For boards trying to just get organized, a lot of this is less about legal interpretation and more about logistics: knowing which deadline applies, keeping the engineer's report, the SIRS, and the funding schedule in one place, and being ready to show owners exactly where the numbers came from. That's the gap our $199 Board Compliance Kit is built to close; it doesn't replace your engineer or your reserve specialist, and it makes no compliance determination about your specific building, but it organizes the paperwork, tracks your deadlines, and gives you owner-ready communication templates once the licensed professionals have done their part.

What should a board actually do with a reserve study once they have one?

Getting the study is step one. A lot of boards file it away and move on, which defeats most of the point. The study should drive next year's budget directly: the SIRS-required components go into the reserve line at the full recommended contribution (no board discretion there under current law), and non-SIRS components get budgeted according to whatever funding plan the board and membership choose. Owners should see a summary of the study, more than a line item buried in the budget. Florida Statutes 718.112(2)(g) requires specific disclosures to owners about SIRS status and funding, and boards that proactively explain the numbers, in plain language, tend to get far less pushback at annual meetings than boards that spring a special assessment on people with little warning. Finally, treat the study as a living document. Component costs move with material and labor prices; a study done in 2022 dollars is already stale in 2025 construction pricing. Many reserve professionals recommend at least a light desk-review update every few years even though the statute only mandates a full SIRS refresh every 10 years. It costs less to true up the numbers gradually than to discover a 40% funding gap right before the next inspection cycle. Our condo special assessment insurance piece covers how some associations are bridging funding gaps with financing tools while reserves catch up.

Frequently asked questions

What is a reserve study?

A reserve study is a professional assessment of a building's major shared components (roof, structure, plumbing, paving) that estimates each item's remaining useful life and replacement cost, then recommends a funding plan so the association has the money on hand when replacement is due. In Florida condos, the structural inspection portion must be done or supervised by a licensed engineer or architect under Fla. Stat. 718.112(2)(g).

What is a reserve study for an HOA?

For an HOA, a reserve study analyzes shared community assets, roads, clubhouses, pools, and recommends annual reserve contributions. Chapter 720 HOAs in Florida have more flexibility than condos to waive or reduce reserves by owner vote, so the study functions more as a planning tool than a hard legal floor, unlike a condo's SIRS.

What is an HOA assessment?

An HOA assessment is money owners pay the association, either a regular recurring due covering operations and reserves, or a special assessment, a one-time or installment charge for an unbudgeted expense like a roof replacement or storm damage. Both are enforceable obligations under the association's governing documents and Florida Statutes 718.116 for condos.

How much should an HOA or condo have in reserves?

Enough to fully fund whatever the reserve study recommends for each component's remaining life, which varies by building. For Florida condos, SIRS components (roof, structure, plumbing, electrical, waterproofing, and others listed in Fla. Stat. 718.112(2)(g)) must be funded at 100% of the study's recommendation with no waiver allowed; HOAs under chapter 720 have more discretion to underfund by vote.

How much does a reserve study cost?

A basic financial reserve study can run roughly $3,000 to $8,000 for a smaller association. A full Florida SIRS, which requires a licensed engineer's physical inspection, commonly runs $10,000 to $30,000 or more depending on building size, number of structures, and coastal exposure driving added corrosion and waterproofing assessment.

Are HOA special assessments tax deductible?

Usually not for the individual owner. Special assessments for capital improvements typically get added to the owner's cost basis in the property rather than deducted, per general IRS basis rules (see IRS Topic No. 703). A portion tied to repairs on a rental property may be deductible in the year paid; check with a CPA for the specific treatment.

What's the difference between CAI reserve study standards and Florida's SIRS law?

CAI's National Reserve Study Standards are voluntary industry methodology used nationwide. Florida's SIRS law (Fla. Stat. 718.112(2)(g)) is mandatory for condos 3 stories or higher, requires a licensed engineer or architect for the physical inspection, bans pooling of SIRS reserve funds, and doesn't allow boards to waive full funding once the study applies.

Who is required to get a Structural Integrity Reserve Study in Florida?

Condominium associations with buildings 3 stories or taller had to complete their first SIRS by December 31, 2024 under Fla. Stat. 718.112 and 553.899, with limited extensions under later legislation. Buildings under 3 stories and most chapter 720 HOAs aren't covered by the state SIRS mandate, though county-level recertification programs may still apply.

How often does a reserve study need to be updated in Florida?

The statute requires a SIRS update at least every 10 years, run alongside the milestone structural inspection cycle. Many reserve professionals recommend a lighter interim review every 3 to 5 years since construction costs shift and component conditions change faster than a full 10-year cycle accounts for.

Can a Florida condo board vote to waive or reduce reserves for SIRS components?

No. Once the Structural Integrity Reserve Study applies, Fla. Stat. 718.112(2)(g) removes the board and membership's ability to waive or reduce funding for SIRS-covered components below the study's recommended level. That's a major change from the pre-2022 rule allowing annual waiver votes.

What components does a Florida SIRS have to cover?

The statute lists 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, among other structural components specified in Fla. Stat. 718.112(2)(g). Non-structural items like landscaping or amenities fall outside SIRS but may still need separate reserve funding.

Does a reserve study have to be done by a licensed engineer in Florida?

The physical inspection portion of a Florida condo's Structural Integrity Reserve Study must be performed by or under the supervision of a licensed engineer or architect, per Fla. Stat. 718.112(2)(g). The broader financial and funding-plan portion of the study is often handled by a reserve specialist working alongside that licensed professional.

What's the difference between a milestone inspection and a reserve study?

A milestone inspection is a structural safety inspection of the building, required at 25 years (coastal) or 30 years (inland) and every 10 years after, under Fla. Stat. 553.899. A reserve study, including the SIRS, is a financial planning document estimating replacement costs and required reserve funding; the two are related but legally separate requirements.

Sources

1. Florida Legislature, Florida Statutes 718.112: SIRS component list, no-waiver/no-pooling rule, and owner disclosure requirements for condo reserves
2. Florida Legislature, Florida Statutes 718.103: Definitions section underlying condominium association reserve and structural integrity terminology
3. Florida Legislature, Florida Statutes 553.899: Milestone inspection timing at 25 years coastal / 30 years inland and every 10 years thereafter
4. Florida Legislature, Florida Statutes 718.116: Assessment obligations of condominium unit owners
5. Florida Legislature, Florida Statutes 720.303: HOA (chapter 720) association powers including reserve funding votes
6. Florida Department of Business and Professional Regulation, Condominiums, Timeshares, and Mobile Homes Division: DBPR regulatory oversight of condominium association compliance
7. IRS, Topic No. 703 Basis of Assets: Capital improvement assessments are generally added to property cost basis rather than deducted
8. IRS, Publication 527 Residential Rental Property: Repair vs. capital improvement distinction for rental property expense deductions
9. California Legislative Information, Civil Code 5550: Example of another state's statutory reserve study requirement for comparison with Florida's approach
10. Florida Senate, SB 1103 (2025): Legislative adjustments and extensions to SIRS/milestone timelines after the original 2022 law