Last updated 2026-07-24
TL;DR
A reserve study is a professional report that lists a building's major components (roof, paint, elevators, structure), their remaining life, and the cost to replace them, then calculates how much an association should save each year. Florida condos over three stories must get one done by a licensed engineer or architect for SIRS components under Fla. Stat. 718.112(2)(g) [1]. Most cost $3,000 to $20,000+ depending on building size.
what is a reserve study
A reserve study is a written report, usually put together by an engineer, architect, or a reserve specialist, that inventories a building's major shared components and figures out two things: how much life each component has left, and how much money it will cost to repair or replace it when that life runs out. Think roof, paving, painting, elevators, pool equipment, and (for Florida condos post-Surfside) the structural items covered by milestone and SIRS rules. The report usually has two halves. The physical analysis lists each component, its estimated useful life, and its remaining useful life in years. The financial analysis takes that list and builds a savings plan, usually a 20 to 30 year table showing the reserve balance under a 'full funding' model versus a 'baseline' or 'threshold' model that just avoids running the account to zero. A reserve study is not an inspection report and it is not the same as a milestone inspection. Florida's milestone inspection under Fla. Stat. 553.899 looks at structural integrity and life safety for buildings 3 stories and up once they hit 30 years old (25 years within 3 miles of the coast), and again every 10 years after [1]. A Structural Integrity Reserve Study (SIRS) is a narrower, statute-specific version of a reserve study focused only on the structural components named in the law: roof, load-bearing walls, floor, foundation, fireproofing, electrical, plumbing, waterproofing, and a few others [2]. A general reserve study can cover all of that plus paint, landscaping, pool decks, and every other shared amenity.
what does a real reserve study example look like
| Roof (flat, membrane) | 20 | 6 | $180,000 | $9,000 | |
|---|---|---|---|---|---|
| Exterior paint | 8 | 3 | $95,000 | $11,875 | |
| Asphalt paving | 20 | 9 | $60,000 | $3,000 | |
| Pool resurfacing | 12 | 5 | $28,000 | $2,333 | |
| Elevators (cab modernization) | 25 | 14 | $150,000 | $6,000 | |
| Structural (SIRS: concrete restoration) | 40 | 22 | $400,000 | $10,000 | The report then rolls all of that into a 20 or 30 year cash flow projection, showing the year-by-year reserve balance, planned withdrawals for each replacement, and the recommended annual contribution per unit. A good report will show at least two funding scenarios: full funding (the goal, keeping reserves at or near 100% of what they should be) and a lower, threshold-funded option that boards sometimes choose to keep assessments down, accepting more special-assessment risk down the road. Most reports also include photos of each component, a summary letter from the preparer stating their license and methodology, and an executive summary page a board can hand to owners without making them read 40 pages of tables. |
Every reserve study, whether it's for a 12-unit condo in Sarasota or a 400-unit high-rise in Miami, follows roughly the same format. Here's a simplified example of what the component table looks like inside a typical report: | Component | Useful Life (yrs) | Remaining Life (yrs) | Current Cost | Annual Reserve Contribution |
what is a reserve study for an hoa (and how is it different from a condo's)
For a homeowners' association, a reserve study covers the components the HOA actually owns and maintains, usually roads, clubhouse, pool, gates, retention ponds, and shared roofs if the HOA insures them. Florida law does not currently require most HOAs to get a formal, licensed-professional reserve study the way condos over 3 stories must for SIRS. Chapter 720 requires HOA boards to maintain adequate reserves if the declaration or bylaws call for them, and gives owners the right to vote to waive or reduce reserve funding at the annual meeting in many cases [3]. That said, plenty of HOAs commission a reserve study anyway because lenders, insurers, and buyers now ask for one, and because guessing at a $400,000 road resurfacing bill five years out is a bad way to run a budget. If your community is single-family homes with no shared vertical structure, you won't deal with milestone or SIRS at all, those apply to condo and cooperative buildings 3 stories and higher [1]. See our reserve study for condo association piece for the condo-specific version, or hoa reserve study if you're on an HOA board specifically.
what is an hoa assessment
An assessment is the fee the association charges owners to cover shared expenses, whether that's the regular monthly or quarterly dues (the 'regular assessment') or a one-time, extra charge for something not covered by the operating budget (a 'special assessment'). Regular assessments fund day-to-day operating costs and reserve contributions. Special assessments happen when the association needs money faster than reserves and normal dues can provide, often for a big repair, a legal settlement, or an insurance shortfall. Under Florida law, condo associations generally must give unit owners at least 14 days' notice before a board meeting where a special assessment will be considered, and the notice has to state the purpose and estimated cost [2]. A board can't just decide over coffee and mail a bill the next week; there's a process, and skipping it invites a legal challenge from owners. See our hoa special assessment article for the full walk-through of notice requirements, payment plan rules, and what happens if an owner refuses to pay.
how much should an hoa have in reserves
There's no single dollar figure that works for every association, because it depends entirely on the size, age, and component list of the property. The honest answer: your reserves should be funded to whatever percentage of 'full funding' your board and members are comfortable with, ideally north of 70%, with 100% being the target most reserve professionals recommend. A rough industry benchmark from Community Associations Institute research and reserve specialists puts healthy associations somewhere between 70% and 100% funded relative to their reserve study's full-funding target; anything under 30% funded is generally considered a red flag that a special assessment is likely within a few years. Florida condos are a different story now: as of the 2022 and 2023 legislative changes (SB 4-D and SB 154), condo associations 3 stories and up can no longer vote to waive or reduce SIRS-related reserves, and must fully fund reserves for the structural components identified in the SIRS starting with the fiscal year following the December 31, 2024 SIRS deadline (with some phase-in adjustments made in 2025) [2] [4]. For a rough gut-check number: reserve specialists commonly cite that reserves should be enough to cover, at minimum, the next 5 years of anticipated major expenditures without a special assessment. If your reserve study shows a $400,000 roof due in year 4 and your reserve account has $40,000 in it, that's your answer right there.
how much does a reserve study cost
| Small HOA (under 50 units, no vertical structure) | $1,500 to $4,000 | |
|---|---|---|
| Mid-size condo (50-150 units) | $4,000 to $12,000 | |
| High-rise condo (150+ units, full SIRS scope) | $10,000 to $30,000+ | |
| SIRS-only add-on to existing reserve study | $2,000 to $8,000 | These are general market ranges, not a quote, and pricing varies by firm, region, and how much of the building's structural documentation already exists. A building with clean permit records and prior engineering reports costs less to study than one where the engineer has to reconstruct history from scratch. Get at least two or three bids from licensed firms, and confirm the person signing the SIRS is a licensed engineer or architect as Florida law requires [2]. |
Cost depends heavily on building size, number of components, and whether it's a full reserve study or a narrower SIRS-only report. Rough Florida market ranges reported by engineering and reserve firms: | Property type | Typical cost range |
who has to get a sirs done in florida, and by when
Condominium associations with buildings 3 stories or more in height must complete a Structural Integrity Reserve Study. The original statutory deadline was December 31, 2024, and after that, SIRS reports must be updated at least every 10 years [2]. The 2025 legislative session made some adjustments to timing and reporting flexibility for associations still catching up, so if your association missed the original deadline, don't assume the rules are frozen. Confirm current deadlines with your association's counsel, since this is an area the legislature keeps revisiting. The statute itself is specific about what must be included: 'A structural integrity reserve study must, at a minimum, identify the association's reserves and determine, at a minimum, the estimated remaining useful life and the estimated replacement cost or deferred maintenance expense of the common areas' for a defined list of components [2]. That list includes roof, load-bearing walls, primary structural members, floor, foundation, fireproofing and fire protection systems, plumbing, electrical, waterproofing and exterior painting, and windows and exterior doors. This is distinct from the milestone inspection, which is a life-safety structural review under Fla. Stat. 553.899, triggered at 30 years of building age (25 years for coastal buildings within 3 miles of the coastline) and repeated every 10 years [1]. Buildings can need both a milestone inspection and a SIRS at overlapping times, and they're prepared by different types of reports even though both rely on licensed engineers.
are hoa special assessments tax deductible
For most individual homeowners, no. Special assessments paid to your HOA or condo association are generally treated like regular HOA dues by the IRS: not deductible as a personal expense, because they're considered part of maintaining your personal residence [5]. IRS Publication 530 explains that homeowners association fees or charges on a personal residence are treated as nondeductible personal expenses, similar to other costs of maintaining a home. The exceptions matter. If the property is a rental or investment property, HOA dues and special assessments are generally deductible as an ordinary business expense against rental income, following the same logic as other rental operating costs [6]. If a special assessment pays for a capital improvement (like adding a new elevator or replacing a roof) on a property you use as a home office or rental, part of it may need to be capitalized and depreciated rather than deducted immediately, similar to how any capital improvement to real property gets treated. And if a special assessment is tied to a casualty loss, like storm damage repair, there may be limited deduction paths depending on your specific facts. This is genuinely a case where you should talk to a CPA, not guess from a blog post. The rules differ for primary residence, rental, and mixed-use property, and IRS Publication 527 covers rental property expense rules in more detail [6].
how does a reserve study connect to a special assessment
A good reserve study is the single best tool a board has for avoiding surprise special assessments, because it turns 'we might need a new roof someday' into 'we need $180,000 in 6 years, so we should be setting aside $2,500 a month starting now.' Boards that skip reserve studies, or that chronically underfund based on an old study, tend to end up facing large, unplanned special assessments when a roof, elevator, or structural repair finally comes due at once. Florida's post-Surfside reforms were built around exactly this problem: buildings that deferred structural maintenance for decades because reserve funding was optional and easy to vote down. The new SIRS rules remove that voting-waiver option for structural components specifically, which means boards can no longer kick the can on those line items the way they could before 2022 [2] [4]. If your board is staring down a large repair bill and wondering how to spread the cost, our condo special assessment insurance article covers financing options, and florida condo reserve fund relief covers what limited relief options exist for associations that are behind.
what should a board actually do with a reserve study once it's done
Getting the report is the easy part. The harder part is using it: budgeting the recommended contributions, updating the study every few years as costs and component conditions change, and communicating clearly to owners why assessments are what they are. A reserve study that sits in a drawer doesn't protect anyone. Boards should schedule the reserve study's recommended contribution into next year's budget, put the SIRS and milestone inspection deadlines on a calendar the whole board can see, and keep a paper trail showing when reports were received, when the board acted on them, and how contributions were communicated to owners. That paperwork matters if an owner later challenges a special assessment or if a lender or buyer's attorney asks for records during a sale. This is the kind of organizing work our Building-Specific Board Compliance Kit is built for: a $199 one-time tool that takes your building's age, height, and coastal location and lays out the milestone and SIRS deadlines you're facing, with a communication template board members can send to owners. It doesn't replace the licensed engineer or architect who has to actually perform the inspection or reserve study, that work has to be done by the professionals the statute requires. What it does is keep the deadlines, the paperwork, and the owner notices from falling through the cracks between board meetings.
what is the difference between a reserve study and a milestone inspection report
They answer different questions and come from different statutes. A milestone inspection under Fla. Stat. 553.899 asks: is this building structurally sound right now, and are there life-safety issues that need immediate attention? It results in a report the local building official reviews, and it's triggered by building age (30 years generally, 25 years if within 3 miles of the coast) and repeated every 10 years [1]. A reserve study, including the SIRS version, asks a forward-looking financial question: given the expected life of each component, how much should we be saving, and when will we need to spend it? It doesn't get filed with a building official the way a milestone report does, but it does have to be shared with owners and factored into the budget [2]. Many buildings will need both around the same time, especially older coastal properties. See reserve study for a broader overview of how these reports interact with each other and with the association's overall compliance calendar.
Frequently asked questions
What is a reserve study?
A reserve study is a professional report that inventories a building's major shared components, estimates how many years of useful life each one has left, and calculates the annual savings the association needs to pay for replacements without a surprise special assessment. Florida condos over 3 stories need a specific version, the SIRS, prepared by a licensed engineer or architect under Fla. Stat. 718.112(2)(g).
What is a reserve study for an HOA?
For an HOA, a reserve study covers the components the association owns directly, like roads, a clubhouse, pool, or gates, and projects the savings needed to replace them on schedule. Most Florida HOAs (single-family, no shared vertical structure) aren't required by state law to get one, unlike condos over 3 stories, but many do it anyway for budgeting and lender requirements.
What is an HOA assessment?
An HOA assessment is a fee charged to owners to cover association expenses. Regular assessments (monthly or quarterly dues) fund normal operations and reserves. Special assessments are one-time charges for unplanned or underfunded expenses, like a roof replacement or insurance shortfall, and Florida condos generally require 14 days' notice before a board can approve one.
What are HOA assessments used for?
Regular assessments cover routine operating costs like landscaping, insurance, management fees, and reserve contributions for future repairs. Special assessments cover unexpected or underfunded costs, often a major repair like a roof, elevator, or structural fix that reserves alone can't cover. Both are set by the board, generally under authority in the declaration and Florida Statutes chapters 718 or 720.
How much should an HOA have in reserves?
There's no fixed dollar figure; it depends on your reserve study's component list and full-funding target. A common benchmark is staying at or above 70% funded relative to the study's full-funding goal, with under 30% funded generally considered risky. For Florida condos, structural (SIRS) reserves can no longer legally be waived by owner vote as of the post-2022 statutory changes.
How much does a reserve study cost in Florida?
Small HOAs typically pay $1,500 to $4,000. Mid-size condos (50-150 units) usually run $4,000 to $12,000. High-rise condos needing full SIRS scope can run $10,000 to $30,000 or more. Prices vary by firm, building complexity, and whether prior engineering records already exist.
Are HOA special assessments tax deductible?
Generally no, for a personal residence, special assessments are treated like regular HOA dues and aren't deductible on your federal return. If the property is a rental or investment property, the assessment is usually deductible as a business expense, though capital improvements may need to be depreciated instead of deducted immediately. Confirm specifics with a CPA.
What is the difference between a reserve study and a SIRS?
A SIRS (Structural Integrity Reserve Study) is a narrower, Florida-statute-specific version of a general reserve study, focused only on structural components: roof, load-bearing walls, floor, foundation, fireproofing, electrical, plumbing, and waterproofing. A general reserve study covers all shared components, including paint, paving, and amenities, more than structural ones.
Who is required to get a SIRS done in Florida?
Condominium associations with buildings 3 stories or taller are required to complete a Structural Integrity Reserve Study, originally due December 31, 2024, and updated at least every 10 years afterward under Fla. Stat. 718.112. Deadlines and phase-in rules have been adjusted by subsequent legislation, so confirm current status with your association's counsel.
Does an HOA legally have to get a reserve study?
Most Florida HOAs governed by Chapter 720 are not statutorily required to hire a licensed professional for a formal reserve study the way condos over 3 stories are for SIRS. Many HOA declarations still require reserve funding decisions, and owners often have the right to vote to waive or reduce reserves annually, so check your specific governing documents.
What happens if a reserve study shows we're underfunded?
The board typically has to raise regular assessments over time to close the funding gap, consider a special assessment to cover an immediate shortfall, or in limited cases pursue financing like a bank loan secured against future assessments. For SIRS-covered structural items in Florida condos, owners can no longer vote to waive that funding, so underfunding has to be addressed through budgeting.
How often does a reserve study need to be updated?
Best practice, and the statutory minimum for SIRS in Florida, is every 10 years, though many reserve specialists recommend a lighter update every 3 to 5 years as costs, inflation, and component conditions change. An outdated study based on old construction costs can badly underestimate what a board actually needs to save.
Sources
- Florida Senate, Florida Statutes Chapter 718.112: SIRS component list, requirement for licensed engineer/architect, and deadline details
- Florida Senate, Florida Statutes Section 553.899: Milestone inspection triggers at 30 years (25 years coastal), repeated every 10 years
- Florida Senate, Florida Statutes Chapter 720: HOA reserve funding and owner waiver rules under Chapter 720
- Florida Senate, SB 154 (2023): 2023 legislative changes to SIRS reserve funding waiver rules
- Internal Revenue Service, Publication 530: HOA assessments on a personal residence are generally not deductible
- Internal Revenue Service, Publication 527: HOA dues and assessments on rental property are generally deductible as rental expenses