Last updated 2026-07-24
TL;DR
Reserve study requirements differ enormously by state. Florida mandates a Structural Integrity Reserve Study (SIRS) for condo buildings three stories and up under Fla. Stat. §718.112, with no waiver allowed. Most other states either require nothing, require only a disclosure, or leave reserve funding to the association's governing documents and board discretion.
What is a reserve study?
A reserve study is an engineering and financial analysis of a building's major shared components, roofs, elevators, pavement, plumbing, structural elements, that predicts when each one will need repair or replacement and how much that will cost. A qualified provider (often an engineer, reserve specialist, or in Florida specifically a licensed engineer or architect for certain components) walks the property, estimates remaining useful life on each item, and produces a funding schedule so the association isn't caught flat-footed when the roof fails at year 22 instead of year 25. Most studies have two halves. The physical analysis lists every major common-area component, its age, condition, and expected remaining life. The financial analysis then models how much money the association needs to be setting aside each year to have cash on hand when each item needs replacing. Get either half wrong and the whole document is close to useless. Reserve studies aren't new. Community associations have used them informally for decades. What changed in Florida after the Champlain Towers South collapse in Surfside in June 2021 is that the state made a specific version, the Structural Integrity Reserve Study, mandatory by law for condo and cooperative buildings three stories or taller, with real deadlines and no board vote to waive it [1].
What is a reserve study for an HOA, and how is it different from a condo SIRS?
A reserve study for an HOA covers the community's shared physical assets, roads, clubhouse, pool, retaining walls, irrigation systems, and sometimes roofs if the HOA maintains them. It exists to answer one question: are we saving enough money now to avoid a painful special assessment later? The key difference from Florida's SIRS is scope and legal force. A general HOA reserve study is usually a financial planning tool the board chooses to commission, often because the governing documents or a state disclosure law asks for one. Florida's SIRS, by contrast, applies specifically to condominium and cooperative buildings three stories or more, requires a study of designated structural and life-safety components (roof, load-bearing walls, floor, foundation, fireproofing, plumbing, electrical, waterproofing, exterior painting, windows, and more), and comes with statutory reporting and funding requirements under Fla. Stat. §718.112(2)(g) [1]. A single-family HOA in Florida is generally not subject to SIRS at all; that law is aimed at condo and co-op buildings. If your association is a Florida condo working through this specifically, our reserve study and reserve study for condo association guides break down the SIRS component list and timeline in more detail.
What is an HOA assessment (and what is a special assessment)?
An HOA assessment is the regular fee owners pay to fund the association's operating budget and reserves, usually billed monthly, quarterly, or annually. A special assessment is a separate, one-time charge the board levies outside the normal budget, typically to cover an unexpected repair, a reserve shortfall, or a large capital project the reserve fund can't absorb. Boards reach for special assessments when reserves run short, which happens constantly. A 2022 industry survey work by the Community Associations Institute has repeatedly found that a meaningful share of associations are underfunded relative to their real repair needs; underfunding is the single biggest driver of surprise special assessments nationwide [2]. In Florida specifically, the 2022 and 2023 legislative changes (SB 4-D and SB 154) removed the option for condo associations to waive or reduce reserve funding for SIRS-covered components starting with the fiscal year beginning January 1, 2025, which is exactly why so many boards are now facing special assessments they'd previously deferred [1][3]. If your board is staring down one of these, hoa special assessment covers notice requirements and payment plan options, and condo special assessment insurance covers whether insurance can offset any part of the bill.
How much should an HOA have in reserves?
There's no single dollar figure that applies to every association; the honest answer depends on the age, size, and materials of the buildings and infrastructure involved. What the industry does track is a percent-funded ratio: reserve balance divided by the fully funded reserve target from the study. Most reserve specialists consider 70% funded or better a healthy range, and anything under 30% funded is generally considered a red flag for a near-term special assessment [2]. Florida's SIRS law sidesteps the percentage question and instead requires full funding, no reserve waivers, no pooling of SIRS-designated components starting with fiscal years beginning on or after January 1, 2025, for condominiums three stories and up [1]. That means Florida boards aren't being asked to hit an arbitrary target percentage; they're being told to fund based on what the SIRS study says each structural component will actually cost when it needs replacing. A rough industry rule of thumb some reserve preparers use as a gut check (not a legal standard) is that reserves should equal roughly 10-15% of a project's original construction replacement cost for older buildings, but this varies so much by component mix that it's really just a starting conversation, not a target to write into a budget. The reserve study itself, done properly, will tell you the real number.
How much does a reserve study cost?
Cost depends heavily on building size, number of components, and whether it's a basic financial-only study or a full study with an on-site engineering inspection. General industry ranges commonly cited by reserve study firms and CAI-affiliated providers run from roughly $1,200 to $2,500 for a small association's basic financial update, up to $10,000-$20,000+ for a large, multi-building condo needing a full physical inspection with engineering sign-off [2]. Florida's SIRS adds a wrinkle because it specifically requires inspection and reporting on structural components by a licensed architect or engineer, more than a reserve financial planner [1]. That professional-licensure requirement generally pushes SIRS costs higher than a basic HOA reserve study, and larger or older coastal buildings with more components (or harder-to-access structural elements) will cost more than a small inland low-rise. Boards sometimes try to save money by skipping the update and reusing an old study. That's usually a false economy: material costs, labor costs, and insurance-driven repair standards move fast, and a study more than a few years stale can badly understate what a roof or facade replacement will actually cost today.
Are HOA special assessments tax deductible?
Generally, no, not for a typical homeowner using the property as a personal residence. Special assessments for capital improvements (a new roof, elevator, or structural repair) are usually treated by the IRS as an addition to your cost basis in the property, not as a deductible expense, according to longstanding IRS guidance on real estate and cooperative housing corporations [4]. That basis increase can reduce capital gains tax when you eventually sell, but it doesn't reduce your taxable income the year you pay it. There are narrow exceptions. If you rent out the unit as investment property, assessments tied to repairs (as opposed to improvements) may be deductible as a business expense in the year paid, and capital improvement assessments on a rental are typically depreciated over time rather than deducted immediately. None of this is a substitute for actual tax advice; a CPA needs to look at whether your specific assessment was for a repair or a capital improvement, and whether the unit is a residence, rental, or mixed use. The IRS doesn't publish a simple one-page answer specific to condo special assessments, which is part of why so much bad information circulates online. When in doubt, keep every assessment notice and invoice; your accountant will need the paper trail either way.
Which states legally require a reserve study, and which don't?
| Florida | Mandatory SIRS for condos/co-ops 3+ stories | Fla. Stat. §718.112; no waiver allowed for SIRS components starting FY2025 [1] | |
|---|---|---|---|
| California | Mandatory reserve study every 3 years, annual review | Civil Code §5550 (Davis-Stirling Act) for condo/HOA associations [5] | |
| Nevada | Mandatory study, updated periodically | NRS 116.31152 requires study and annual review [6] | |
| Colorado | Disclosure-based, no full study mandate | Requires reserve study disclosure in resale documents under CCIOA | |
| Virginia | Disclosure required, no funding mandate | Property Owners' Association Act requires disclosure of reserve study status | |
| Texas | No statewide mandate | Reserve studies encouraged, not required by state law for most HOAs | |
| Most other states | No statutory requirement | Left to governing documents, lender requirements (FHA/Fannie Mae), or board discretion | This table is a starting point, not a substitute for reading your own state's current statute; several states have amended these rules in the last two to three years, largely in response to Surfside. Confirm current text with your association's counsel before relying on any summary, including this one. |
This is where things get genuinely uneven. A handful of states have real statutory reserve study mandates with teeth. Most states have either a lighter disclosure requirement or nothing at all, leaving reserve funding entirely to the association's own bylaws and board judgment. | State | Reserve study requirement | Notes |
Why did Florida change its reserve study law after Surfside?
The Champlain Towers South collapse in Surfside on June 24, 2021 killed 98 people and became the direct catalyst for Florida's overhaul of condo safety law. The Florida Legislature responded in 2022 with SB 4-D, then refined it in 2023 with SB 154, creating the Structural Integrity Reserve Study requirement alongside the separate milestone inspection program [1][3]. The core policy problem lawmakers were trying to fix: associations had been legally allowed to vote to waive or reduce reserve contributions year after year, which let boards defer painful assessments indefinitely, sometimes for decades, while structural components quietly aged past their safe service life. SIRS closes that loophole specifically for structural and life-safety components. Under §718.112(2)(f), condo and cooperative associations "may not determine to provide no reserves or less reserves than required" for the SIRS-designated components once the study is done [1]. This is a meaningfully different philosophy than most other states, where reserve underfunding remains a private governance choice between the board and its owners, not a statutory violation.
What components does Florida's SIRS actually require boards to study and fund?
Fla. Stat. §718.112(2)(g) lists specific structural and life-safety components that must be included if the building has them: roof, load-bearing walls or other primary structural members, floor, foundation, fireproofing and fire protection systems, plumbing, electrical systems, waterproofing and exterior painting, windows, and "any other item that has a deferred maintenance expense or replacement cost that exceeds $10,000 and the failure to replace or maintain such item negatively affects the items listed... as determined by the licensed engineer or architect performing the visual inspection" [1]. That last clause matters. It's not a fixed checklist; the inspecting engineer or architect has discretion to add components based on what they actually find on-site. A building with unusual balcony construction or an aging seawall might get additional line items a neighboring building doesn't. For the studies to be valid, the inspection must be performed by a licensed engineer or architect, and DBPR maintains licensing information for these professionals through its regulatory boards . The kit or checklist a board uses to track this internally doesn't replace that licensed inspection; it just organizes the deadlines, the vendor contracts, and the paper trail around it.
What are the deadlines for milestone inspections and SIRS in Florida?
Milestone structural inspections apply to condo and co-op buildings three stories or more. Under §553.899, buildings must complete their initial Phase 1 milestone inspection by December 31 of the year they turn 30 years old, or 25 years old if located within three miles of the coastline, and every 10 years after that [1]. Local building officials can also require earlier inspection for buildings showing visible distress. SIRS, the reserve study piece, must be completed by December 31, 2024 for existing associations under the statute's transition timeline, with the resulting reserve funding requirements (no waivers on SIRS components) kicking in for the fiscal year starting January 1, 2025 [1]. Some associations that missed the December 2024 SIRS deadline are still catching up; check with your management company and engineer on where your specific building actually stands, since enforcement posture and any legislative grace periods can shift year to year. Boards juggling both deadlines on the same calendar often lose track of which report feeds which board vote. That's the exact problem a structured $199 Board Compliance Kit is built to solve: it doesn't perform the inspection or the study (only the licensed engineer or architect can do that), but it organizes the deadlines, vendor contacts, and owner notices around both milestone and SIRS requirements so nothing falls through in a volunteer board's inbox.
What happens if an association skips reserve funding relief or delays its SIRS?
In Florida, the practical risk of delay is twofold: legal exposure and financial exposure. Legally, §718.112 no longer permits associations to vote down full reserve funding for SIRS components once the study identifies the need; a board that ignores this is operating outside the statute [1]. Financially, delay just compounds the problem, because deferred structural repairs tend to get more expensive, not less, as materials continue to age and labor and insurance costs keep climbing. There was a real, if narrow, relief valve: florida condo reserve fund relief programs and legislative adjustments have been debated and partially enacted in recent sessions to help associations facing sudden, large special assessments smooth the transition. These change year to year, so a board weighing whether to seek relief, delay a vote, or push forward should talk to counsel about the current-year version of the law rather than relying on last year's headlines. Outside Florida, the consequences of skipping a reserve study are usually softer but not harmless: lenders increasingly ask for reserve study documentation before approving mortgages in condo developments, and Fannie Mae and FHA condo project approval guidelines both look at reserve funding adequacy as part of underwriting.
How do I get a reserve study done for my HOA or condo?
Start by figuring out which type of study your state or your governing documents actually require. In Florida, a SIRS-covered building needs a licensed engineer or architect for the structural inspection component; a general financial reserve study for non-SIRS items can often be done by a reserve specialist, though many boards use the same firm for both to keep the numbers consistent [1]. Get at least two or three quotes. Costs vary widely by firm and region, and a study that's too cheap sometimes means a rushed physical inspection, while a study that's too pricey doesn't automatically mean better data. Ask for sample reports from prior clients, ask how they handle component useful-life estimates, and ask directly whether the firm carries professional liability insurance for the work. Once the study is in hand, the board's job shifts to implementation: budgeting the recommended annual contribution, communicating the numbers to owners (who often don't want to hear them), and deciding whether a special assessment, a loan, or a phased funding plan makes more sense for any existing shortfall. Our hoa reserve study guide walks through that budgeting conversation in more depth.
Frequently asked questions
What is a reserve study?
A reserve study is a professional analysis of an association's major shared components (roofs, structure, plumbing, elevators, pavement) that estimates each item's remaining useful life and replacement cost, then builds a funding schedule so the association saves enough money before repairs are needed. Florida's version for condo buildings three stories and up is called a Structural Integrity Reserve Study, or SIRS [1].
What is a reserve study for an HOA?
It's the same core concept applied to a homeowners association's shared assets: roads, clubhouses, pools, retaining walls, and similar infrastructure. Unlike Florida's condo-specific SIRS law, most single-family HOA reserve studies are driven by governing documents, lender requirements, or general best practice rather than a statutory mandate.
What is an HOA assessment?
An HOA assessment is the fee owners pay into the association, either as a regular (monthly, quarterly, or annual) charge covering operations and reserves, or as a special assessment, a one-time charge levied outside the normal budget to cover an unexpected or large expense the reserve fund can't fully absorb.
How much should an HOA have in reserves?
There's no universal dollar figure; it depends on the age and materials of the community's infrastructure. Industry practice generally treats a reserve fund at 70% or more of its fully funded target as healthy, and below 30% funded as a warning sign for a near-term special assessment [2]. Florida's SIRS law bypasses percentages and requires full funding of SIRS-designated components with no waiver option starting FY2025 [1].
How much does a reserve study cost?
Basic financial-only reserve studies commonly run $1,200 to $2,500 for smaller associations, while full studies with on-site engineering inspection for larger or older buildings can run $10,000 to $20,000 or more [2]. Florida's SIRS, which requires a licensed engineer or architect, tends to cost more than a basic HOA reserve study because of that licensure requirement.
Are HOA special assessments tax deductible?
Generally no, for a personal residence. Special assessments for capital improvements typically increase your cost basis in the property rather than being deductible in the year paid, per longstanding IRS treatment of real estate improvements [4]. Rental property owners have more nuanced options; a CPA should review whether the assessment was for a repair versus a capital improvement.
Which states require reserve studies by law?
Florida (SIRS for condos/co-ops 3+ stories, Fla. Stat. §718.112 [1]), California (reserve study every 3 years plus annual review, Civil Code §5550 [5]), and Nevada (NRS 116.31152 [6]) have real statutory mandates. Most other states either require only a disclosure of reserve status or have no state-level requirement at all, leaving it to governing documents.
Does every Florida condo need a SIRS?
SIRS applies to condominium and cooperative buildings that are three stories or more in height, as defined under Fla. Stat. §718.112 [1]. Buildings under three stories, and most single-family HOAs, are generally not subject to the SIRS requirement, though associations should confirm applicability with counsel given how building height and structure type get classified.
What's the difference between a milestone inspection and a SIRS?
A milestone inspection (Fla. Stat. §553.899) is a structural safety inspection of the building performed by a licensed engineer, due by age 30 (or 25 if within three miles of the coast) and every 10 years after. SIRS (§718.112) is the reserve funding study covering the same structural components; the two are related but legally separate requirements with separate deadlines [1].
Can a Florida condo association still waive reserve funding?
No, not for SIRS-designated structural components. Since fiscal years beginning on or after January 1, 2025, Florida condo and co-op associations can no longer vote to waive or reduce reserve funding for components identified in the SIRS study, per Fla. Stat. §718.112(2)(f) [1]. Non-SIRS reserve items may still have more flexibility depending on the association's documents.
What happens if my association can't afford full SIRS-required reserves?
Options generally include a special assessment, a bank loan secured against future assessments, or a phased funding plan negotiated with the association's engineer and counsel. Some legislative relief measures have been proposed or enacted for associations facing sudden large assessments; check current-year status, since this area of Florida law has shifted across recent legislative sessions [1][3].
Who is qualified to perform a Florida SIRS inspection?
The structural components of a SIRS must be inspected by a licensed engineer or architect, per Fla. Stat. §718.112(2)(g) [1]. DBPR maintains licensing verification for engineers and architects operating in Florida through its regulatory boards [7]. A reserve study firm alone, without a licensed engineer or architect involved, cannot legally complete the structural portion.
Sources
- Florida Senate, Florida Statutes Chapter 718 (Condominiums): SIRS requirements, component list, waiver prohibition, and definitions under §718.112
- Florida Senate, SB 154 (2023) legislative summary: 2023 amendments refining the 2022 SB 4-D condo safety reforms
- Internal Revenue Service, Publication 530 (Tax Information for Homeowners): Tax treatment of capital improvement assessments as basis adjustments rather than deductions
- California Legislative Information, Civil Code §5550 (Davis-Stirling Common Interest Development Act): California's mandatory reserve study every 3 years with annual review
- Nevada Legislature, Nevada Revised Statutes 116.31152: Nevada's statutory reserve study and annual review requirement
- Florida Senate, Florida Statutes §553.899 (Milestone inspections): Milestone inspection age thresholds (30 years, or 25 years within 3 miles of coastline) and 10-year recurrence