Last updated 2026-07-24
TL;DR
A reserve study for a condo association is a professional evaluation of common-area components (roof, paint, pavement, structure) that projects when each will need replacement and how much money to set aside now. In Florida, condos 3+ stories must complete a Structural Integrity Reserve Study (SIRS) at least every 10 years under Fla. Stat. 718.112, with full-funding decisions largely stripped from board discretion since 2024 reforms.
What is a reserve study?
A reserve study is a written report, usually done by an engineer, reserve specialist, or accounting firm, that looks at every major shared component of a property (roof, elevators, pool, pavement, structure, plumbing risers) and answers two questions: how much life does each item have left, and how much will it cost to repair or replace it when that time comes. The output is a funding schedule. It tells the board what to collect from owners each year so the money is there when the roof needs replacing in year 12, or the parking structure needs major repair in year 20. Good reserve studies get updated every few years because material costs, contractor pricing, and component condition all shift. Most studies have two parts: a physical analysis (site walk, component inventory, remaining useful life estimates) and a financial analysis (current reserve balance, funding plan, recommended contribution). Some firms combine both; larger buildings often hire an engineer for the physical piece and a CPA or reserve specialist for the funding math. For Florida condos in buildings three stories or taller, a specific subset of this work is now mandatory by statute: the Structural Integrity Reserve Study, or SIRS. That's a narrower, structurally-focused version covering load-bearing items and a fixed list of components under Fla. Stat. 718.112(2)(g) [1].
What is a reserve study for an HOA?
For a homeowners association (single-family or townhome communities governed by Fla. Stat. ch. 720 rather than condo law), a reserve study works the same way conceptually but the components differ. Instead of a shared roof or elevator, an HOA reserve study typically covers private roads, retention ponds, clubhouse buildings, pools, gates, fencing, and irrigation systems, whatever common elements the HOA itself owns and maintains. HOAs in Florida do not currently face a SIRS mandate the way condos do; that requirement under 718.112 is specific to condominium associations. But most HOA governing documents and many lenders (Fannie Mae condo/PUD project standards) expect some form of reserve planning, and a growing number of HOA boards commission voluntary reserve studies just to avoid the special-assessment scramble that hits underfunded communities. See our HOA reserve study guide for how the HOA-specific process and cost range differ from condo SIRS work.
How much does a reserve study cost?
Cost depends heavily on building size, number of components, and whether it's a full engineering-based SIRS or a lighter financial-only study. For Florida condo SIRS work specifically, licensed engineers and contractors commonly quote in the range of roughly $3,000 to $10,000 for smaller buildings (three to five stories, under 50 units) and $10,000 to $20,000 or more for larger high-rises with more mechanical systems, parking structures, and building envelope complexity. There's no statewide fee schedule and DBPR doesn't publish standardized pricing, so these figures come from industry practice rather than a government rate card; get at least two or three quotes and confirm what's included (structural components only, per the SIRS statute, versus a full reserve study covering every common element). A basic financial-only reserve study for a smaller HOA with fewer components can run less, sometimes $1,500 to $4,000, because there's no structural engineering component required. Multi-building complexes or associations wanting a full component inventory plus SIRS compliance in one engagement will land at the higher end. Updates cost less than the initial study, typically 20-40% of the original fee, since much of the component inventory carries forward. Florida law requires SIRS to be redone at least every 10 years [1], though boards can and often should update financial projections more frequently as costs shift.
How much should a condo have in reserves?
There's no single dollar figure that applies to every building; the right reserve balance depends on the age, size, and condition of the property and what the reserve study's funding schedule calls for. The honest answer is: enough to match the fully-funded schedule your reserve study or SIRS produces, not an arbitrary percentage. That said, reserve specialists commonly describe funding as a spectrum. "Fully funded" means reserves match 100% of the theoretical value based on component age and remaining life. Many associations run at 30-70% funded, which isn't automatically a crisis but does raise special-assessment risk if a major component fails early. Florida's 2024 legislative changes (amending Fla. Stat. 718.112) removed the ability of condo boards to waive or reduce reserves for the SIRS-covered structural components starting with reserves due after December 31, 2024 [2]. That means, practically, boards no longer get to vote to underfund the roof or structure reserve line the way they could vote to waive general reserves in the past. Full detail is in our Florida condo reserve fund relief piece covering what changed and what deadlines shifted.
How much should an HOA have in reserves?
Same logic as condos, different governing statute. Florida HOAs under Chapter 720 aren't subject to the SIRS mandate, and Chapter 720 gives HOA boards more flexibility to waive or reduce reserve funding by membership vote than condo boards now have for structural items under 718.112. That flexibility is a double-edged sword. An HOA board can legally under-reserve for years if owners keep voting to waive full funding, and then get hit with a special assessment when the clubhouse roof or the private road needs replacement all at once. A reserve study, even a voluntary one, at least gives the board (and buyers doing due diligence) a real number to look at instead of guessing. As a rule of thumb, reserve specialists in the field generally flag anything under about 30% funded as a red flag warranting a funding plan review, though again, this is industry practice and judgment, not a statutory threshold.
What is an HOA assessment?
An HOA assessment is a fee the association charges owners to fund its budget, either the regular recurring dues (often called "regular assessments") or a one-time or short-term charge to cover a specific cost the regular budget doesn't cover, called a "special assessment." Regular assessments fund day-to-day operations: landscaping, insurance, utilities for common areas, management fees, and contributions to reserves. Special assessments happen when something unbudgeted comes up: a burst pipe, storm damage not fully covered by insurance, or a major repair the reserve fund can't absorb. Both condo associations (Fla. Stat. 718) and HOAs (Fla. Stat. 720) have statutory authority to levy assessments, and both sets of statutes require the association to follow specific notice and voting procedures depending on the size and type of assessment. Governing documents (declaration, bylaws) layer additional requirements on top, so the exact process varies by community; that's a question for your association's counsel, not a generic answer.
What are HOA assessments used for, and how do special assessments differ?
Regular assessments cover predictable, recurring costs. Special assessments cover the unpredictable or the underfunded: the things a reserve study should have anticipated but the association didn't save enough for, or genuinely unexpected damage like a hurricane or a failed elevator motor. The pattern boards see most often in Florida right now: a SIRS or milestone inspection turns up structural repair needs the reserve fund doesn't cover, and the board has to levy a special assessment to bridge the gap. This is exactly the scenario a well-funded, regularly updated reserve study is meant to prevent, though for buildings just now doing their first SIRS under the 2022-2024 reform wave, the gap is often already baked in from years of underfunding before the mandate existed. See our dedicated guide on HOA special assessment rules, notice requirements, and how boards typically calculate the amount owed per unit.
Are HOA special assessments tax deductible?
Generally, no, not for the individual owner's personal income taxes, if the assessment is for capital improvements or major repairs to common elements. The IRS treats special assessments for capital improvements the same way it treats other home improvement costs: they get added to your cost basis in the property, which can reduce capital gains tax when you sell, but they're not an itemized deduction in the year you pay them [3]. There's a narrow exception: if part of a special assessment is specifically for a casualty loss (like storm damage) and meets IRS casualty loss rules, or if the unit is used as a rental or home office, a portion may be deductible or depreciable as a business expense. That's fact-specific and depends on the individual owner's tax situation, so this is a question for a CPA, not a board decision or a blanket answer. IRS Publication 523 addresses how capital improvements affect the cost basis of a home, and that general framework is what tax preparers apply to special assessments for capital work [3]. Boards should not advise owners on the tax treatment of assessments; that's outside a board's role and creates liability if the advice is wrong.
What does the SIRS mandate actually require, and who has to comply?
Florida's SIRS requirement, added by SB 4-D after the 2021 Surfside collapse and refined in later sessions, applies to condominium buildings three stories or more in height. It requires a structural integrity reserve study addressing specific components: roof, load-bearing walls and other primary structural members, floor, foundation, fireproofing and fire protection systems, plumbing, electrical systems, waterproofing and exterior painting, windows and doors, and "any other item that has a deferred maintenance expense or replacement cost exceeding $10,000 and the failure to replace or maintain such item negatively affects the items listed" [1]. The statute requires the study be performed by a licensed engineer or architect and states associations "must have a structural integrity reserve study completed at least every 10 years after the condominium's creation" for buildings meeting the height threshold [1]. The first-round deadline for existing buildings was December 31, 2024, tied to the milestone inspection timeline for many properties. DBPR, the Florida Department of Business and Professional Regulation, is the state agency that regulates community association managers and handles related licensing and complaint functions; check their site for current guidance and any enforcement bulletins tied to the SIRS rollout [4]. Because the statute has been amended multiple times since 2022, always confirm current deadlines and thresholds with your association's counsel.
How does a SIRS relate to the milestone inspection?
They're related but separate requirements. The milestone inspection (Fla. Stat. 553.899) is a structural safety inspection triggered by building age, generally required at 30 years for most buildings and 25 years for buildings within three miles of the coast, then every 10 years after [5]. It's about safety, done by a licensed engineer or architect, and results in a report on structural condition. The SIRS is about money. It's a funding study that uses many of the same structural components the milestone inspection looks at, and often the same engineering firm collects data for both around the same site visit, which saves cost. Boards often bundle them for efficiency: schedule the milestone inspection and the SIRS site visit together, since much of the physical inspection overlaps. See our milestone inspections hub content and the general reserve study overview for how the two timelines interact for buildings hitting both deadlines close together.
What happens if a condo board doesn't complete a required reserve study or SIRS?
Consequences run from administrative to financial to legal, depending on how late and how the local county or DBPR chooses to handle it. Florida law ties SIRS completion to reserve funding rules: associations that don't complete a required SIRS lose the ability to legally waive or underfund the structural reserve components, meaning the board may be required to fund reserves at the higher, non-waivable level anyway, without the benefit of the study to guide exactly how much. Buyers and lenders are also watching. Fannie Mae and other lenders have added condo project review questions tied to milestone inspections and SIRS status; a building that's out of compliance can see units become harder to finance, which hits resale values association-wide, more than for the seller trying to close. County building departments enforce the milestone inspection deadlines and can escalate non-compliance to code enforcement action in serious cases. None of this is a substitute for reading your specific county's enforcement posture and your declaration's own requirements with counsel; enforcement varies by jurisdiction and this article can't tell you what your specific building's status is.
How do boards manage the paperwork and deadlines around all this?
The practical problem most volunteer boards run into isn't understanding the concept of a reserve study, it's tracking which deadline applies to their specific building (age, height, coastal distance all matter), getting bids to licensed professionals on time, and keeping owners informed without a paid management company doing it all for them. That's the gap a fixed-price tool like BoardDeadline's $199 Building-Specific Board Compliance Kit is built for: it takes your building's age, height, and location and generates the applicable milestone and SIRS deadlines, a document checklist, and owner-communication templates, so the board isn't guessing at which statute year applies. It doesn't replace the licensed engineer who has to actually perform the inspection or reserve study, and it doesn't determine whether the structural work meets code; that's for your engineer, your CPA, and your association's counsel to determine.
How often should a reserve study be updated?
For SIRS specifically, Florida law sets a floor of once every 10 years [1]. But a 10-year-old funding number is close to useless in a period of high material cost inflation; most reserve specialists recommend a full update every 3-5 years and a lighter financial review annually, adjusting the contribution schedule as actual costs and component conditions change. Boards that only update on the statutory minimum schedule tend to get surprised. A roof estimated at $400,000 in year one of a 10-year study can easily cost $550,000-$600,000 by year eight, given the roofing material and labor cost increases of the past several years; nobody has a single authoritative national dataset tracking this precisely for HOA/condo components, but contractor bid data collected by reserve specialists consistently shows double-digit percentage increases over multi-year spans in Florida's post-hurricane construction market. An annual budget cycle is the natural time to at least sanity-check the reserve schedule against current contractor quotes, even if a full new study isn't due.
Frequently asked questions
What is a reserve study?
A reserve study is a professional assessment of a property's shared components (roof, structure, elevators, pavement, plumbing) that estimates each item's remaining life and future replacement cost, then produces a funding schedule showing how much the association should be collecting now. Florida condos 3+ stories must complete a structural-focused version, the SIRS, under Fla. Stat. 718.112 [1].
What is a reserve study for an HOA?
It's the same concept applied to homeowners association common property: private roads, ponds, clubhouses, pools, and similar shared assets rather than a shared building. Florida HOAs under Chapter 720 aren't required by state law to do a SIRS the way condos are, but many boards commission voluntary studies to avoid special-assessment surprises.
How much does a reserve study cost?
Florida condo SIRS pricing commonly runs $3,000-$10,000 for smaller buildings and $10,000-$20,000+ for larger high-rises, based on industry quotes rather than a published state rate schedule. Basic financial-only HOA reserve studies without structural engineering can run $1,500-$4,000. Updates typically cost 20-40% of the original study fee.
How much should a condo have in reserves?
There's no fixed statewide dollar figure; the right amount is whatever your reserve study's funding schedule calls for based on component age and replacement cost. Reserve specialists describe 100% as "fully funded," with many buildings running 30-70% funded, a range that raises special-assessment risk but isn't automatically a violation on its own.
How much should an HOA have in reserves?
Same logic as condos: match your reserve study's funding schedule. Chapter 720 gives Florida HOA boards more legal flexibility than condo boards to vote to waive or reduce reserve funding, which means underfunding is more common and more legally permissible, but it still raises the risk of a large special assessment later.
What is an HOA assessment?
An HOA assessment is a charge levied on owners to fund the association's budget: either a regular recurring dues payment or a special assessment for a specific unbudgeted cost like storm damage or a major repair the reserve fund can't cover. Both condo (Ch. 718) and HOA (Ch. 720) statutes govern how these are levied.
What are HOA assessments used for?
Regular assessments fund ongoing operations like landscaping, insurance, and management fees, plus contributions to reserves. Special assessments fund one-time or short-term needs the regular budget and reserves don't cover, most often major repairs, storm damage, or a funding gap uncovered by a milestone inspection or SIRS.
Are HOA special assessments tax deductible?
Generally no for personal residences; special assessments for capital improvements typically get added to your cost basis rather than deducted in the year paid, per longstanding IRS treatment of home improvement costs described in IRS Publication 523 [3]. Exceptions can apply for casualty-loss-related portions or rental/business-use units. Consult a CPA for your specific situation.
What is a SIRS and how is it different from a regular reserve study?
A Structural Integrity Reserve Study (SIRS) is Florida's statutory, structure-focused version of a reserve study, required for condos 3+ stories under Fla. Stat. 718.112(2)(g), covering a fixed list of components like roof, load-bearing walls, and waterproofing. A general reserve study can cover more items (pools, clubhouses, paint) but isn't itself a legal substitute for SIRS compliance.
Who is required to perform a SIRS in Florida?
The physical inspection portion must be performed by a licensed engineer or architect, per Fla. Stat. 718.112 [1]. Associations then use that report to build or update the funding schedule, sometimes with help from a reserve specialist or accountant. DBPR oversees related licensing for community association managers [4].
How often does Florida law require a SIRS to be redone?
At least every 10 years after the condominium's creation, per Fla. Stat. 718.112(2)(g) [1]. Many reserve professionals recommend a full update every 3-5 years and an annual financial check-in, since a 10-year-old cost estimate is often far below current material and labor pricing.
Can a condo board still vote to waive reserve funding in Florida?
For the specific structural components covered by SIRS, no, not for funding due after December 31, 2024, under the 2024 reforms to Fla. Stat. 718.112 [2]. Boards should confirm exact current rules with counsel, since this area has changed multiple times since 2022 and may change again.
Does a milestone inspection replace the need for a reserve study?
No. The milestone inspection (Fla. Stat. 553.899) is a structural safety check tied to building age and coastal proximity [5]. The SIRS is a separate funding study. They often share engineering data from the same site visit, but one doesn't legally substitute for the other.
Sources
- Florida Legislature, Fla. Stat. 718.112 (Bylaws; condominium and association governance, including reserve requirements): SIRS component list, 10-year completion requirement, and licensed engineer/architect requirement for condos 3+ stories
- Florida Legislature, Ch. 2024-244, Laws of Florida (condominium and cooperative association reserve funding reforms): 2024 reforms removing ability to waive reserve funding for SIRS structural components after Dec 31, 2024
- IRS, Publication 523, Selling Your Home: capital improvement costs, including special assessments for improvements, generally adjust cost basis rather than being currently deductible
- Florida Legislature, Fla. Stat. 553.899: milestone inspection required at 30 years generally, 25 years within 3 miles of coastline, then every 10 years
- Florida Legislature, Fla. Stat. ch. 720 (Homeowners' Associations): Chapter 720 governs Florida HOAs and gives boards flexibility to waive or reduce reserve funding by membership vote, unlike condo reserves for SIRS components
- Florida Legislature, Fla. Stat. ch. 718 (Condominiums): Chapter 718 governs Florida condominium associations, including statutory authority to levy regular and special assessments