Last updated 2026-07-24
TL;DR
A reserve study is a professional assessment of an association's common-area components (roofs, paving, pools, structure) that estimates remaining life and replacement cost, then recommends annual funding. Florida condos 3+ stories must get a Structural Integrity Reserve Study (SIRS) at least every 10 years, and those reserves can no longer be waived or fully pooled under Fla. Stat. 718.112.
What is a reserve study?
A reserve study is a written report, usually done by an engineer or a reserve specialist, that looks at every major common-area component your association owns (roof, paving, elevators, pool, painting, structural elements) and answers three questions: what does it cost to replace, how many years of useful life does it have left, and how much money should the association be setting aside each year to pay for it without a surprise bill. Most studies have two parts. The physical analysis inspects and inventories components, estimates remaining useful life, and prices out replacement in current dollars. The financial analysis takes that inventory and builds a funding plan, usually a 20 to 30 year projection, showing what reserve contributions need to look like under a "full funding" model versus a "baseline" model that only covers what's due right when it's due. For Florida condominiums, this isn't just good practice anymore. Buildings three stories or higher must have a Structural Integrity Reserve Study, commonly called a SIRS, completed by December 31, 2024, and updated at least every 10 years after that [1]. A SIRS specifically covers structural items: roof, load-bearing walls, floor, foundation, fireproofing and fire protection, plumbing, electrical, waterproofing, and any other item with a deferred maintenance cost over $10,000 that would affect the priorities above [1]. A general reserve study (the kind HOAs for single-family homes or townhomes might get) can cover a broader list, like landscaping, fencing, and clubhouse furnishings, because there's no structural-safety statute driving it. See our reserve study guide for the mechanics of scheduling one, and the hoa reserve study page if your association isn't a condo but still wants one done right.
What is a reserve study for an HOA (as opposed to a condo)?
For a homeowners' association, a reserve study works the same way conceptually, but the legal requirement is different. Florida's HOA statute, chapter 720, doesn't currently impose a SIRS mandate the way chapter 718 does for condos. HOAs are generally required to reserve for items the board decides to reserve for, and funding decisions get made annually in the budget process, subject to whatever the association's declaration and bylaws say [2]. That said, a lot of Florida HOAs choose to commission a reserve study anyway, because it's the only reliable way to know if the annual assessment is remotely adequate. Without one, boards often guess, and the guess is almost always too low, because roofs and roads and pools don't wait for convenient budget years. If your community is a condominium inside an HOA-style master association (fairly common in Florida with attached villas or townhome condos), you may have both a chapter 718 SIRS obligation for the condo buildings and a separate reserve conversation for master association amenities like a clubhouse or gate. Don't assume one study covers both. Ask your management company or engineer directly which components each report includes.
What is an HOA assessment? What are HOA assessments?
An HOA assessment is a fee the association charges members, on top of (or instead of) regular dues, to pay for something specific. There are two basic kinds: regular assessments, which are the routine dues covering operating costs and reserve contributions, and special assessments, which are one-time or short-term charges to cover an unbudgeted cost, like a major repair, a legal settlement, or a reserve shortfall discovered after a study. Special assessments are the ones that generate board meetings people actually show up to. They happen when reserves weren't funded adequately, insurance didn't cover a loss, or a structural repair (think concrete restoration after a milestone inspection) costs more than anyone budgeted. Florida law requires associations to disclose reserve funding status and any planned assessments in the annual budget meeting notice, and boards have fiduciary duties around how special assessments are levied and communicated [1]. If your board is staring down a special assessment right now, our hoa special assessment article covers notice requirements and payment plan options, and condo special assessment insurance looks at whether insurance financing products can spread the cost.
How much should an HOA have in reserves?
There's no single dollar figure that's right for every association, because it depends entirely on what you own and how old it is. A reserve study is the only credible way to answer this for your specific property. That said, a few benchmarks help boards sanity-check where they stand. Under Florida's SIRS rules for condos, the reserve contribution for the structural components covered by the study must be based on the study's findings, funded at a level that will have the money available when the component needs replacing, and it cannot be waived, reduced by membership vote, or pooled together with other reserve line items the way non-structural reserves sometimes were in the past [1]. That's a meaningful shift: pooled or "cash flow" funding used to let boards move money between reserve categories informally. For SIRS items, each component now needs its own dedicated funding line. For non-SIRS reserves and for HOAs generally, a common industry rule of thumb is that a well-funded reserve fund sits somewhere around 70% or more of "full funding" (the amount you'd have if every component's reserve exactly matched its age-based depreciation) though this benchmark comes from reserve-industry practice, not statute, and boards should treat it as a guideline rather than a legal target. Associations under 30% full funding are generally considered at meaningful risk of a special assessment within a few years, according to reserve specialists in the field; there isn't one federal or state dataset that tracks this nationally, so treat any specific percentage claim (including this one) as an industry rule of thumb, not hard data. The honest answer for "how much should my HOA have in reserves" is: get the study, then fund to at least what it recommends for full funding on structural and safety items, and negotiate the discretionary stuff (landscaping refresh, clubhouse furniture) based on what your membership can tolerate in dues increases.
How much does a reserve study cost?
| Basic reserve study (no site visit) | Financial projection only | $1,000 to $3,000 | |
|---|---|---|---|
| Full reserve study | Site inspection + financial plan | $3,000 to $8,000+ | |
| SIRS (condo 3+ stories) | Licensed engineer/architect, structural components only | Varies by size; generally higher than a standard full study | These ranges are general industry figures, not fixed fees. Get at least two or three quotes from licensed firms, and confirm the scope matches what your statute requires before comparing price. |
Costs vary widely by building size, number of components, and whether it's a basic reserve study or a full SIRS requiring a licensed engineer or architect's inspection. As a general range reported by reserve-study firms and Florida community association attorneys, a basic reserve study (financial analysis only, no engineer site visit) for a small to mid-size community can run roughly $1,000 to $3,000. A full reserve study with a physical site inspection typically runs $3,000 to $8,000 or more depending on unit count and complexity. A SIRS specifically, because it requires a licensed engineer or architect and covers structural components on a building three stories or taller, tends to run higher, and larger or older buildings with more structural systems to inspect will cost more than a small low-rise. Florida law requires the SIRS visual inspection to be performed by a licensed engineer or architect [1], and DBPR maintains licensing information for these professionals. Think of it this way: a reserve study or SIRS is a small line-item cost compared to the special assessment it's designed to prevent. Boards that skip the study to save a few thousand dollars often end up facing six or seven-figure special assessments a few years later because nobody had accurate numbers. | Study type | Typical scope | Rough cost range |
Are HOA special assessments tax deductible?
Generally, no, not for the individual homeowner, and this trips up a lot of board members who get asked about it constantly. The IRS treats HOA assessments, regular or special, as a personal, nondeductible living expense for an owner's primary residence, similar to how regular maintenance on your own home isn't deductible [3]. There are narrow exceptions. If the property is a rental or investment property, special assessments may be deductible as a business expense, or depreciated as a capital improvement, depending on what the assessment paid for. If part of your home is used for a home office that qualifies under IRS home office rules, a portion of the assessment might be deductible there too. None of this is board business to sort out, and it isn't legal or tax advice; owners with rental units or complicated tax situations should talk to a CPA, and boards should be careful not to represent assessments as deductible in any official communication, since that crosses into giving tax advice the board isn't qualified to give. A board's job here is limited to documenting what the assessment was for and when it was charged, so an owner's accountant can figure out the tax treatment. That's it.
What does a reserve study actually look like when it's done?
A finished reserve study report typically has a component inventory (list of every reserve item, its useful life, remaining life, and current replacement cost), a funding plan (usually a 20 to 30 year table showing recommended annual contributions and projected fund balance), and a narrative summarizing the methodology and any assumptions. For a SIRS specifically, Florida law spells out what has to be in it: an inventory of the structural components inspected, no lower than a specified minimum reserve threshold based on remaining life and estimated cost, and a statement of current reserve balance for each item [1]. The visual inspection portion has to be done by a licensed engineer or architect, and the association has to distribute a summary of the SIRS to owners within a set timeframe after completion, per the statute in effect for your association; confirm the current notice deadline with your association's counsel since these deadlines have been amended more than once since 2022. Boards should expect updates to a SIRS at least every 10 years [1], but nothing stops a board from getting one sooner if a milestone inspection or storm damage turns up new structural concerns. If your building is also subject to a 25 or 30-year milestone structural inspection, coordinate the two, since findings from one often change the funding math in the other.
Who actually performs a reserve study or a SIRS?
A general reserve study can be prepared by a reserve specialist, sometimes a credentialed member of a professional reserve organization, and doesn't always require an engineer if there's no structural component being assessed. A SIRS is different: Florida law requires the visual structural inspection portion to be performed by a licensed engineer or licensed architect [1]. DBPR (the Department of Business and Professional Regulation) licenses and regulates engineers and architects in Florida and is the place to verify a professional's license status before you sign a contract. Don't skip this step. Boards have been burned by hiring unlicensed "inspectors" who produced reports that didn't satisfy the statutory requirement, forcing the association to pay for a second, compliant study. Your management company can often help vet firms and pull references, but the decision to hire, and the fiduciary responsibility for making sure the study actually meets the statute, sits with the board. This is exactly the kind of task that's easy to let slip through the cracks between board meetings, which is why some associations use a structured board-kit-builder style checklist ($199 one-time at BoardDeadline) to track when studies, inspections, and notices are due, alongside the required deadlines under chapter 718. The kit doesn't perform the study or make compliance calls about your specific documents; licensed engineers, architects, and your association's counsel do that. It organizes the schedule so nothing gets missed.
What happens if the board skips or delays the reserve study or SIRS?
For Florida condo associations subject to the SIRS mandate, skipping it isn't really an option anymore in the way it might have been under the old, more flexible reserve rules. The 2024 statutory changes removed the ability of unit owners to vote to waive or reduce structural reserve funding for SIRS-covered components [1]. Boards that fail to complete a required SIRS or fail to fund the resulting reserve line items as required can face legal exposure, and depending on how a declaration is written, individual board members could face claims tied to their fiduciary duty to the association. Beyond legal exposure, the practical risk is worse: without a study, boards don't know how much to charge, and when a roof or a garage deck fails years earlier than anyone expected, the only fix left is a special assessment nobody budgeted for. That's the scenario that generates lawsuits, foreclosures on owners who can't pay a five-figure assessment, and boards getting voted out at the next annual meeting. See florida condo reserve fund relief for what limited flexibility, if any, currently exists around funding timelines, and confirm anything specific to your building with your association's counsel, since the legislature has amended these reserve rules multiple times since the Surfside collapse in 2021 prompted the original statutory overhaul.
How does a reserve study relate to milestone inspections and SIRS deadlines?
They're related but distinct requirements, and boards often conflate them. A milestone inspection is a structural safety inspection required for condo and cooperative buildings three stories or more, generally due by the building's 30th year (25th year if within three miles of the coast), and again every 10 years after [4]. A SIRS is a financial planning document that estimates reserve funding needs for structural components. In practice, the milestone inspection's Phase 1 (and Phase 2, if required) findings often feed directly into the SIRS numbers, because if the milestone inspection turns up deferred structural maintenance, that cost has to show up somewhere in the reserve study's component list. Boards that time these two processes close together, using the same engineer or firm where possible, tend to get a more coherent and defensible set of numbers than boards that treat them as unrelated projects on different calendars. For the milestone timeline itself, along with the coastal 25-year trigger, see our dedicated milestone inspection coverage; this article focuses on the reserve funding side of the equation.
Quick answers: reserve study terms boards mix up
What is a reserve study, in one sentence: it's a professional report estimating the remaining life and replacement cost of an association's major components, paired with a funding plan. What is a reserve study for HOA, specifically: for non-condo HOAs, it's the same kind of report, but Florida law doesn't currently mandate it under chapter 720 the way it mandates SIRS for condos under chapter 718; boards adopt it voluntarily or per their governing documents. What is an HOA assessment, in one sentence: a fee, regular or special, charged to members to fund operations, reserves, or an unbudgeted cost. What are HOA assessments used for, most commonly: insurance premiums, reserve contributions, routine maintenance, and (via special assessment) major repairs or legal judgments not covered by insurance or existing reserves.
Frequently asked questions
What is a reserve study?
A reserve study is a professional report that inventories an association's major common-area components (roof, paving, pool, structural elements), estimates each item's remaining useful life and replacement cost, and recommends how much the association should contribute to reserves each year to pay for future replacements without a surprise special assessment.
What is a reserve study for an HOA?
For a homeowners' association, a reserve study works the same way as for a condo: it inventories shared components and projects funding needs. Florida doesn't currently require HOAs (chapter 720) to get one the way it requires condos (chapter 718) to get a SIRS, so HOAs typically commission one voluntarily or per their declaration.
What is an HOA assessment?
An HOA assessment is any fee the association charges members to cover costs, split into regular assessments (routine dues for operations and reserves) and special assessments (one-time charges for unbudgeted costs like major repairs, uninsured losses, or reserve shortfalls found after a study or inspection).
How much should an HOA have in reserves?
It depends on your components and their age; a reserve study is the only reliable way to know for your specific property. Reserve-industry practice treats roughly 70% or more of full funding as healthy and under 30% as at meaningful risk of a special assessment, though these are industry benchmarks, not statutory requirements.
How much does a reserve study cost?
A basic reserve study without a site visit typically runs $1,000 to $3,000. A full study with a physical inspection runs roughly $3,000 to $8,000 or more. A Florida SIRS, which requires a licensed engineer or architect, generally costs more, scaling with building size and the number of structural components inspected.
Are HOA special assessments tax deductible?
Generally no, for a personal residence. The IRS treats HOA assessments, regular or special, as nondeductible personal living expenses. Exceptions may apply for rental or investment properties or a qualifying home office, but owners should confirm with a CPA rather than rely on board guidance, since this isn't tax advice.
What's the difference between a reserve study and a SIRS?
A reserve study is a broader financial planning tool that can cover any common-area component. A Structural Integrity Reserve Study (SIRS) is a Florida-specific, statutorily defined study limited to structural and life-safety components (roof, load-bearing walls, foundation, plumbing, electrical, waterproofing, fireproofing) required for condos three stories or higher under Fla. Stat. 718.112.
Who has to get a SIRS in Florida?
Condominium and cooperative associations with buildings three stories or higher must complete a SIRS, with the first one due December 31, 2024, and updates required at least every 10 years after, per Fla. Stat. 718.112(2)(g).
Can a condo association waive or reduce SIRS reserve funding?
No. Under the current version of Fla. Stat. 718.112, unit owners cannot vote to waive, reduce, or pool reserve funding for the structural components covered by a SIRS. This is a change from the older reserve rules that allowed membership votes to reduce or waive reserve contributions.
Who is qualified to perform a reserve study or SIRS?
A general reserve study can be prepared by a reserve specialist without an engineering license if no structural analysis is involved. A SIRS specifically requires the visual structural inspection to be performed by a licensed engineer or architect. Boards can verify licenses through Florida DBPR before signing a contract.
What happens if a board skips a required SIRS?
The association risks legal exposure for failing to meet a statutory obligation, and board members could face fiduciary duty claims depending on the circumstances. Practically, skipping the study means the board is guessing at funding needs, which raises the odds of an unplanned, large special assessment down the road.
Does every HOA need a reserve study, or just condos?
Florida law currently mandates SIRS only for condos and cooperatives three stories or higher (chapter 718). HOAs governed by chapter 720 aren't subject to that specific mandate, but many still get a voluntary reserve study because it's the only reliable way to set adequate dues and avoid special assessments.
How often does a reserve study or SIRS need to be updated?
A SIRS must be updated at least every 10 years under Fla. Stat. 718.112(2)(g). General reserve studies for HOAs don't have a fixed statutory update schedule in Florida, but industry practice recommends a full update every 3 to 5 years, with an annual review of the funding plan in between.
Sources
- Florida Senate, Florida Statutes 718.112(2)(g): SIRS deadline of December 31, 2024 and 10-year update requirement for condo buildings three stories or higher
- Florida Senate, Florida Statutes Chapter 720: HOA reserve funding is generally governed by the association's declaration and annual budget process, not a statutory SIRS mandate
- Internal Revenue Service, Publication 530: HOA assessments for a personal residence are generally nondeductible personal living expenses
- Florida Senate, Florida Statutes 553.899: Milestone inspection required at 30 years generally, or 25 years for buildings within three miles of the coast, and every 10 years thereafter
- Florida Senate Statutes: Defines requirements related to condominium association transition and structural reporting relevant to SIRS obligations
- Florida Senate Statutes: Governs HOA assessments and the association's authority to levy them
- Internal Revenue Service: Provides guidance on deductibility of expenses related to real property, relevant to whether HOA special assessments are tax deductible
- Florida Senate Statutes: Defines qualifications and licensing for community association managers who may coordinate reserve studies