Last updated 2026-08-14
TL;DR
A condo reserve study is a professional assessment of a building's major common elements (roofs, paint, pavement, plus load-bearing items covered by SIRS) that projects remaining life and repair or replacement cost, then schedules funding. Florida doesn't mandate a full reserve study by law, but it does mandate SIRS-based reserves for buildings 3 stories and up, updated at least every 10 years [1].
What is a reserve study?
A reserve study is a written report, usually done by an engineer, reserve specialist, or similar consultant, that looks at every major shared component in a building or community (roof, paint, pavement, elevators, pool, and for condos the structural items) and answers two questions: how much life does this thing have left, and how much will it cost to fix or replace when that life runs out. A full reserve study has two halves. The physical analysis walks the property, measures and photographs components, and estimates useful life and remaining useful life for each one. The financial analysis takes those numbers and builds a funding plan, either "straight line" (spread the future cost evenly over the item's life) or "pooled" (combine all components into one fund and cash-flow it component by component). Most Florida condo boards use pooled funding because it's more flexible when a few big-ticket items land close together. Florida law doesn't use the words "reserve study" as a universal mandatory document for every association the way some other states do. Instead, Chapter 718 requires condo associations to fund reserves based on either a full study or a set statutory list of components, and as of the 2022-2023 SIRS reforms, buildings three stories and higher must get a Structural Integrity Reserve Study done by a licensed engineer or architect at least every 10 years [1]. That SIRS becomes the backbone of the reserve schedule for structural items; boards still need to handle non-structural reserves (paint, pavement, etc.) separately, often through a traditional reserve study or the statutory component list. See our reserve study explainer for the general mechanics, or reserve study for condo association for how Florida condos specifically structure this.
What is a reserve study for an HOA (versus a condo)?
For a homeowners association, a reserve study covers the same idea (roads, clubhouse roof, pool, irrigation, retention ponds, whatever the HOA owns and maintains) but the legal requirement is lighter than for condos. Florida's HOA statute, Chapter 720, requires reserve accounts only if the members vote to fund them, or if the developer originally set them up and owners haven't voted to waive or reduce them [2]. There's no SIRS-equivalent structural mandate for single-family HOAs, because SIRS in Chapter 718 applies specifically to condominium buildings three stories and above. That said, plenty of HOAs commission a reserve study voluntarily, because underfunded reserves are the single biggest driver of ugly special assessments later. A study for an HOA looks at: road resurfacing cycles (often 15-20 years for asphalt), roofing on common buildings, pool resurfacing (typically every 10-15 years for plaster), fencing, and stormwater infrastructure. See hoa reserve study for the community-association-specific version of this process. The short version: "reserve study for HOA" and "reserve study for condo" answer the same underlying question (what do we own, when will it fail, what will it cost) but the legal floor under condos is much harder now because of the SIRS mandate. HOAs are still mostly self-governed on this.
What is an HOA assessment (and what is a condo assessment)?
An assessment is simply the charge an association levies on owners to pay for shared expenses. There are two kinds. A regular assessment is the recurring monthly or quarterly fee that covers operating costs and reserve contributions, budgeted annually. A special assessment is a one-time (or short-term) charge levied outside the normal budget, usually because reserves fell short of an actual repair bill, or because a SIRS or milestone inspection turned up work that can't wait. Under Florida Statutes 718.116, condo assessments are the owner's proportional share of common expenses as set out in the declaration, and unpaid assessments become a lien on the unit [3]. For HOAs, 720.308 governs how assessments are levied and capped relative to prior-year budgets unless a supermajority of owners approves otherwise [4]. The reason reserve studies and assessments are tied together in every board conversation is simple: a reserve study is the tool that's supposed to prevent the special assessment. If the study (or SIRS) is accurate and the board actually funds it, owners pay predictable amounts over time instead of getting hit with a $15,000 lump-sum bill after a milestone inspection finds spalling concrete. If you want the full mechanics on special assessments specifically, see hoa special assessment.
How much should a condo or HOA have in reserves?
There's no single dollar figure that's "right" for every building, because it depends entirely on the age, size, and components of the property. What matters is whether the reserve balance tracks the funding plan the study (or SIRS) recommends, not some generic percentage rule some property managers throw around. That said, industry practice groups reserve funding into a rough scale using a "percent funded" metric: reserves on hand divided by the theoretical fully-funded balance for all components at that point in their life cycle. A commonly cited framework, used by reserve specialists nationally, treats 70% funded and above as strong, 30-70% as fair, and under 30% as weak or at-risk [5]. Florida doesn't legislate a specific percent-funded target; the statute instead requires that reserves for SIRS components be funded based on the study's recommendations, without the option most associations used to have to waive or underfund them for those specific items [1]. For a rough sense of scale: Florida's own analysis when SIRS passed estimated that many condo associations statewide were carrying reserve shortfalls in the tens of thousands to low hundreds of thousands of dollars per building, which is exactly why the legislature moved from optional to mandatory funding for structural items after the Surfside collapse [6]. If your board is asking "how much should we have saved," the honest answer is: get the study or SIRS done, then fund to whatever number the licensed professional calculates for full funding of remaining useful life. Guessing a round number and hoping is how buildings end up with $50,000 special assessments per unit.
How much does a reserve study cost?
| Traditional reserve study (non-structural) | $3,000-$20,000+ | Reserve specialist / consultant | No statewide mandate; often voluntary or by declaration |
|---|---|---|---|
| SIRS (structural) | Varies by building; several thousand to tens of thousands | Licensed engineer or architect | Yes, condos 3+ stories, F.S. 718.112(2)(g) [1] |
| Milestone inspection | Separate cost, often $5,000-$30,000+ depending on size | Licensed engineer or architect | Yes, condos/co-ops 3+ stories, F.S. 553.899 [7] |
| SIRS update | Lower than initial study | Same as above | Every 10 years minimum [1] |
For a traditional, full reserve study (physical inspection plus financial plan) on a mid-size community, published ranges from reserve-study firms and community-association resources generally run from about $3,000 to $6,000 for smaller associations, and up into the $10,000-$20,000+ range for larger or more complex properties with many components [5]. Update-only studies (no new site visit, just refreshed numbers) cost less, often in the low four figures. SIRS specifically is priced differently because it requires a licensed engineer or architect and covers a defined statutory list of structural components (roof, load-bearing walls, floor, foundation, fireproofing, electrical, plumbing, waterproofing, and other items the Division specifies) [1]. Costs vary widely by building size, height, and how much destructive or invasive testing is needed, and DBPR does not publish a fixed statewide fee. Boards should get multiple engineering proposals; costs in the range of a few thousand dollars for a small low-rise to tens of thousands for a large high-rise with structural uncertainty are commonly reported by condo associations and engineering firms working this market. One cost-saving note: if your building already completed its milestone inspection under 553.899, some of that structural data can inform the SIRS scope, potentially reducing duplicate site visits. Ask your engineer directly whether they can combine site work. | Study type | Typical cost range | Who performs it | Required by statute? |
How often does a reserve study or SIRS need to be updated?
SIRS must be performed at least once every 10 years for condominium and cooperative buildings three stories or more in height, per Florida Statutes 718.112(2)(g) [1]. The first-round deadline for existing buildings was December 31, 2024, based on the building's certificate of occupancy date and applicable milestone inspection timing, and associations should confirm current deadlines with counsel since the legislature has adjusted timing more than once since 2022. Traditional (non-SIRS) reserve studies don't have a statutory update cycle in Florida the way SIRS does. Best practice among reserve professionals is a full study with a site visit every 5 years, with a desktop or "update" review annually or every 2-3 years in between to true-up costs for inflation and any completed projects [5]. A study that's 8 or 10 years old with no updates is close to useless. Concrete pricing, insurance costs, and labor rates in Florida have moved enough since 2020 that stale numbers will underfund reserves badly. Boards juggling both documents (SIRS for structural items, a separate reserve study or component list for everything else) sometimes find it easier to put both on the same review calendar even though the legal cycles differ, just so nothing falls through the cracks. That's part of why the Florida condo reserve fund relief discussion around legislative adjustments matters for planning.
What does SIRS cover that a regular reserve study doesn't?
SIRS is narrower and deeper than a typical reserve study. It's limited to a specific statutory list: roof, structure (load-bearing walls and other primary structural members), fireproofing and fire protection systems, plumbing, electrical systems, waterproofing and exterior painting, windows and exterior doors, and any other item the condo association's engineer or architect determines has a material effect on safety, plus anything the Division of Florida Condominiums, Timeshares, and Mobile Homes specifies by rule [1]. Traditional reserve studies typically go broader but shallower, covering everything from pool furniture and clubhouse HVAC to parking lot striping and mailbox kiosks, often without the same engineering rigor SIRS demands (SIRS requires a visual inspection by a licensed engineer or architect, and the report has specific content requirements under the statute). The practical result for most boards: SIRS handles the safety-critical structural spine of the building and its reserve funding becomes mandatory, no waiver, no underfunding, starting with the first SIRS-informed budget after the study is delivered [1]. Everything else, the pool deck, the landscaping, the garage door openers, still falls under whatever reserve policy the association uses, which can still be adjusted by membership vote unless the declaration says otherwise. Boards should not assume SIRS "covers" cosmetic or amenity items just because an engineer walked the property; ask the engineer explicitly what fell inside versus outside SIRS scope.
Are HOA and condo special assessments tax deductible?
For most owners, no. Special assessments for capital improvements, major repairs, or reserve shortfalls are generally treated like an addition to your cost basis in the property, not a deductible expense, because they're a capital cost rather than a currently deductible operating cost. The IRS treats routine HOA/condo assessments (dues) as a personal, nondeductible expense for the portion of the property you use as a home, similar to how ordinary maintenance and utility charges aren't deductible for personal residences [8]. There are narrow exceptions. If the unit is a rental property, the owner's share of the special assessment may be deductible as a business expense or depreciated as a capital improvement, depending on what the assessment funded. If part of the home is used for a qualifying home office, a portion may be deductible under home-office rules. None of this is specific tax advice; owners should confirm with a CPA or tax attorney how a particular assessment is treated, since the answer depends on whether it counts as a repair versus a capital improvement and how the unit is used. This is a common question because SIRS-driven special assessments in Florida have been large lately, and owners understandably want relief somewhere. The honest answer is that the tax code doesn't provide much for owner-occupants; the relief mechanisms that do exist are the legislative reserve-funding delays and installment options Florida has floated, not federal tax deductions.
How does a reserve study interact with the milestone inspection?
The milestone inspection (Florida Statutes 553.899) and SIRS are separate legal requirements, but they usually happen on overlapping timelines and often involve the same engineer looking at the same structural elements, so smart boards coordinate them rather than treating them as unrelated projects. Milestone inspections are triggered by building age and proximity to the coast: buildings 3 stories or more must get a Phase 1 inspection by the 30th year after the certificate of occupancy (or 25th year for buildings within 3 miles of the coastline), and every 10 years after that [7]. If Phase 1 finds substantial structural deterioration, a Phase 2 inspection follows. The findings from a milestone inspection, particularly anything Phase 2 uncovers, directly feed into the SIRS reserve numbers, because SIRS is supposed to reflect the real remaining life of structural components, not a generic assumption. If your engineer just found active rebar corrosion during Phase 2, your SIRS reserve schedule for that component needs to shrink accordingly, and probably needs new money faster than a 10-year update cycle would otherwise suggest. Boards that treat these as two disconnected paperwork exercises tend to end up with reserve numbers that don't match the actual condition of the building. For the inspection side specifically, see our milestone inspections coverage.
Who actually performs a reserve study or SIRS, and how do boards pick someone qualified?
For SIRS specifically, Florida law requires the study be performed by a licensed engineer or architect [1]. That's not optional and it's not something a property manager or a generic "reserve specialist" without that license can sign off on for the structural components covered by the statute. DBPR's Division of Florida Condominiums, Timeshares, and Mobile Homes oversees condo association compliance generally; boards can check licensure status for engineers and architects through the Florida Department of Business and Professional Regulation's license search. For traditional (non-SIRS) reserve studies, credentials vary. Many practitioners hold a Reserve Specialist (RS) designation from the Community Associations Institute, or a Professional Reserve Analyst (PRA) credential from the Association of Professional Reserve Analysts. Neither credential is a Florida licensing requirement by statute for non-structural components, but boards should still ask for references, sample reports, and whether the person carries errors-and-omissions insurance. Get at least two or three proposals for any SIRS or reserve study. Ask specifically what site access they need, how long the report will take, and whether the fee includes photos and component-by-component detail or just summary tables. A cheap proposal that skips a real site walk isn't worth the savings when the number gets challenged at a membership meeting.
What should a board do once the reserve study or SIRS is done?
Getting the report is the easy part. The harder part, and the part boards routinely fumble, is actually turning the report into a budget, a communication plan for owners, and a calendar of the next deadlines. Practically, once SIRS or a reserve study lands on the board's desk, there are four things to nail down fast: the funding number that has to go into next year's budget, the date the next update is due (10 years for SIRS, sooner if best practice for a general study), whether a special assessment is needed to close an existing gap, and how the board explains all of this to owners before the annual meeting so nobody's blindsided. Boards juggling a milestone inspection deadline and a SIRS deadline and an annual budget cycle on top of normal HOA business tend to lose track of exact dates, which is a real problem given the lien and liability exposure tied to missed statutory deadlines. This is the exact gap our $199 one-time Building-Specific Board Compliance Kit is built to close: it organizes your building's specific deadlines (milestone, SIRS, reserve funding cycle) into one schedule, tracks what's coming due, and gives the board plain-language talking points for owners. It doesn't replace your engineer or your attorney; it's the calendar and communication layer sitting on top of their work. Start at /board-kit-builder if your board needs that organized in one place. Whatever system a board uses, the one non-negotiable is this: don't let the report sit in a folder. A board that gets a SIRS back showing a $2 million roof replacement due in 6 years and does nothing with that number for 3 years is setting up the next board (or the current one) for a brutal special assessment vote.
What happens if a board skips or delays the reserve study or SIRS?
For SIRS specifically, skipping it isn't really an option anymore for qualifying buildings; it's a statutory requirement with real consequences, including potential liability exposure for board members who knowingly disregard it, and DBPR enforcement authority over condo associations generally [1]. Associations that fail to complete SIRS on time risk being unable to waive or reduce reserve funding for those components, on top of whatever direct penalties or liability follow from ignoring a legal deadline. Beyond the legal risk, delay has a compounding financial cost that's easy to underestimate. Every year a board waits to fund a known future repair, the remaining years to save shrink, which mechanically raises the monthly or annual contribution needed to hit the same target, or forces a special assessment instead. A roof that costs $800,000 to replace in year 10 doesn't get cheaper if the board waits until year 8 to start saving; it gets harder to fund on a shorter runway, and materials and labor costs in Florida have been rising besides. There's also a resale and financing angle worth a mention. Since 2022, Fannie Mae and Freddie Mac have tightened lending standards for condo projects with significant deferred maintenance, unfunded reserves, or unresolved structural issues found by a milestone inspection. Buildings that show as underfunded or non-compliant on SIRS timelines can find units harder to finance, which drags down resale values for every owner, more than the board's headache. Confirm current lender-specific rules with your association's counsel and any mortgage professionals working in the building, since agency guidance has been updated more than once since the SIRS law passed.
Frequently asked questions
What is a reserve study?
A reserve study is a professional report that inventories a building's major shared components (roof, paint, structure, mechanical systems), estimates each one's remaining useful life, and builds a funding schedule so the association saves enough to pay for replacement without a surprise special assessment. In Florida, condos 3+ stories must get the structural version, SIRS, at least every 10 years under F.S. 718.112(2)(g) [1].
What is a reserve study for an HOA?
For an HOA, a reserve study covers community-owned assets like roads, pools, clubhouses, and stormwater systems rather than condo building structure. Florida's Chapter 720 doesn't mandate reserve studies for HOAs the way Chapter 718 now mandates SIRS for condos; HOA reserves are typically funded only if owners vote to establish and keep them [2].
What is an HOA assessment?
An HOA assessment is the charge levied on members to cover association expenses, either as a regular recurring fee set in the annual budget or as a special assessment for unbudgeted costs like storm damage or a reserve shortfall. Florida Statutes 720.308 governs how these are levied and capped relative to prior budgets [4].
How much should an HOA or condo have in reserves?
There's no fixed dollar amount; it depends on the property's specific components and their remaining life. Reserve professionals use a percent-funded scale where 70%+ of the theoretical full-funding target is considered strong and under 30% is weak [5]. Florida law requires condos to fund SIRS-covered items per the study's recommendation, without the waiver option that used to apply.
How much does a reserve study cost?
Traditional reserve studies for community associations typically run $3,000 to $6,000 for smaller properties and can exceed $10,000-$20,000 for large, complex ones [7]. SIRS costs vary more widely since it requires a licensed engineer or architect and depends heavily on building size and structural complexity; get multiple engineering quotes rather than assuming a flat rate.
Are HOA or condo special assessments tax deductible?
Generally no, for owner-occupants. The IRS treats special assessments for capital repairs or improvements as an addition to the property's cost basis rather than a deductible expense, similar to nondeductible personal home maintenance costs [10]. Rental property owners may have different treatment; confirm specifics with a CPA.
What is SIRS and how is it different from a regular reserve study?
SIRS (Structural Integrity Reserve Study) is Florida's mandatory structural-only study for condo/co-op buildings 3+ stories, covering a defined list like roof, load-bearing structure, plumbing, electrical, and waterproofing, performed by a licensed engineer or architect [8]. A regular reserve study is broader (covers amenities, paint, pavement) but isn't legally required statewide the way SIRS now is.
How often is SIRS required in Florida?
At least once every 10 years for qualifying condominium and cooperative buildings 3 stories or higher, per Florida Statutes 718.112(2)(g) [1]. The exact first-round deadline depends on the building's age and certificate of occupancy date; confirm current dates with your association's counsel since the legislature has adjusted timing since the law passed in 2022.
Who is legally allowed to perform a SIRS in Florida?
Only a licensed engineer or architect can perform a Structural Integrity Reserve Study under Florida law [8]. Boards can verify a professional's license status through the Florida Department of Business and Professional Regulation's online license search [11].
What happens if a condo association doesn't complete its SIRS on time?
The association loses the ability to waive or underfund reserves for SIRS-covered structural components, and board members can face liability exposure for knowingly ignoring a statutory requirement. DBPR has enforcement authority over condo association compliance generally [1][11]. Delayed compliance also risks financing complications for unit sales in the building.
Does the milestone inspection replace the need for a SIRS?
No. The milestone inspection (F.S. 553.899) and SIRS (F.S. 718.112) are separate legal requirements, though they often use the same engineer and overlapping structural data. Milestone inspections check current structural safety; SIRS uses that condition data to project remaining life and set reserve funding for the next decade [9][1].
Can an HOA or condo waive reserve funding entirely?
Condos can no longer waive or reduce reserve funding for SIRS-covered structural components once the study is done; that option was eliminated in the post-Surfside reforms [1]. HOAs under Chapter 720 generally can still vote to waive or reduce reserves unless the declaration says otherwise, since HOA reserve funding isn't mandatory by default [2].
How is percent funded calculated for a reserve study?
Percent funded is the association's current reserve balance divided by the theoretical fully-funded balance for all components at their current age and condition. Reserve professionals commonly treat 70%+ as strong, 30-70% as fair, and under 30% as weak or at financial risk [5]. Florida doesn't set a statutory percent-funded target; SIRS instead mandates funding to the study's specific recommended number for structural items.
Sources
- Florida Senate, Florida Statutes 718.112(2)(g): SIRS is required at least every 10 years for condo/co-op buildings 3+ stories, and reserves for SIRS components cannot be waived or reduced
- Florida Senate, Florida Statutes Chapter 720: HOA reserve accounts are only required if established by the developer or voted in by members, unlike condo SIRS reserves
- Florida Senate, Florida Statutes 718.116: Condo assessments are owners' proportional share of common expenses and unpaid assessments become a lien on the unit
- Florida Senate, Florida Statutes 720.308: HOA assessments and special assessments are governed by caps relative to prior-year budgets unless a supermajority approves otherwise
- Community Associations Institute, reserve funding guidance: Reserve funding is commonly benchmarked using a percent-funded scale where 70%+ is considered strong and under 30% is weak
- Florida Senate, Committee analysis of SB 4-D / reserve reform bills: Legislative analysis behind Florida's post-Surfside reserve funding reforms cited widespread reserve shortfalls across condo buildings
- Florida Senate, Florida Statutes 553.899: Milestone inspections are required by the 30th year (25th year if within 3 miles of the coast) after certificate of occupancy, and every 10 years after
- Internal Revenue Service, Publication 530, Tax Information for Homeowners: Homeowner association assessments and similar charges are generally treated as nondeductible personal expenses, distinguishing capital costs from deductible expenses