Reserve Study Explained for HOAs and Condos

A reserve study is the document behind the reserve line in an HOA or condo budget. It answers three questions: what will we have to replace, when, and how much should we put aside each year so the bill does not land on owners all at once? This is general information, not legal or accounting advice. Whether a study is required, how often, who may prepare it and how reserves must be funded are set by your state and your governing documents, and they differ. Check your state's statute.
What a reserve study is, and is not
It is a planning report. A qualified professional inventories the common components the association must maintain, estimates the remaining life and replacement cost of each, and proposes a funding plan.
It is not a guarantee that nothing will fail early, it is not the annual budget (the board still sets that), and it is not a maintenance plan, although the two should agree. A study is only as good as the inventory and the assumptions behind it, which is why boards should read it, not just file it.
The components
A reserve component is a common element of the community with a limited useful life and a replacement or major repair cost large enough that it should be planned for, not paid out of the monthly operating budget. Typical examples:
- roofs, siding, exterior painting and waterproofing,
- paving, sidewalks, parking structures and gates,
- elevators, boilers, pumps and common-area HVAC,
- pools, fitness rooms, clubhouse finishes and playground equipment,
- fencing, lighting, irrigation and common-area plumbing and electrical systems,
- windows and exterior doors, where the association maintains them.
Day-to-day items stay in the operating budget: cleaning, landscaping, small repairs, utilities. Which items the association is responsible for depends on your declaration, so the first step of any study is to read it. The component worksheet further down is a way to start your own list.
What is in the study
Two parts, in most studies.
Physical analysis. For each component: the quantity, the year installed, the useful life, the remaining life and the cost to replace it today. Studies differ in whether the preparer visits the site and inspects, or only updates the numbers of an earlier study.
Financial analysis. The current reserve balance, a projection of income and spending over a long horizon (commonly 20 to 30 years), the assumptions about inflation and interest, and one or more funding plans.
Funding plan concepts
These are the terms you will meet. They are industry terms, not legal requirements, unless your documents or your state say otherwise.
- Full funding. Aim to keep the reserve at the level the study calculates is needed at that point of each component's life.
- Threshold or baseline funding. Aim to keep the balance above a chosen minimum, often set so that the reserve never runs out. The board chooses the floor.
- Percent funded. The reserve balance as a share of the level the study calculates as ideal. It is a snapshot, not a verdict; read the assumptions behind it.
- Special assessment instead of a reserve. Paying for the roof when it fails by billing owners at that time. It is a choice some associations make, not a funding plan, and it lands unevenly on whoever owns when the bill arrives.
- Contribution. The annual amount in the budget that flows to the reserve. This is the number the study turns into a budget line.
A study usually offers several plans. The board picks one, adopts it in the budget, and records the decision in the minutes.
RESERVE COMPONENT WORKSHEET
[ASSOCIATION NAME] Date: ____________ Prepared by: ____________
Copy this block for each component. Read your declaration first: list only
what the association maintains.
COMPONENT 1: ____________________________________________
Quantity and unit: ____________ Year installed: ________
Useful life: ____ years Remaining life: ____ years
Replacement cost today: $____________
Source of the estimate (quote, contractor, past invoice): ____________
Condition notes: _____________________________________________
_____________________________________________
COMPONENT 2: ____________________________________________
Quantity and unit: ____________ Year installed: ________
Useful life: ____ years Remaining life: ____ years
Replacement cost today: $____________
Source of the estimate (quote, contractor, past invoice): ____________
Condition notes: _____________________________________________
_____________________________________________
COMPONENT 3: ____________________________________________
Quantity and unit: ____________ Year installed: ________
Useful life: ____ years Remaining life: ____ years
Replacement cost today: $____________
Source of the estimate (quote, contractor, past invoice): ____________
Condition notes: _____________________________________________
_____________________________________________
COMPONENT 4: ____________________________________________
Quantity and unit: ____________ Year installed: ________
Useful life: ____ years Remaining life: ____ years
Replacement cost today: $____________
Source of the estimate (quote, contractor, past invoice): ____________
Condition notes: _____________________________________________
_____________________________________________
Total replacement cost of all components today: $____________
Date of last professional reserve study: ____________
Next study or update due: ____________ (per your documents / state)
How a board tracks the study
A study that nobody opens goes stale. Once a year, when the board builds the budget:
- Compare the actual reserve balance with the balance the study projected for this date. The difference tells you whether the plan is on track.
- Compare contributions made with contributions the study assumed. A budget that cut the reserve line one year shows up here.
- List what was replaced, what it cost, and what the study had estimated. Large gaps mean the cost assumptions are out of date.
- Note components that moved. A roof that is failing early, or a pump that outlived its estimate, changes the plan.
- Decide whether the study needs an update now. Material cost changes, a major replacement or a new amenity are reasons not to wait for the scheduled date.
- Record the review in the minutes and give owners the summary. What owners must receive, and when, is set by your documents and your state.
RESERVE FUND: ANNUAL TRACKING SHEET
[ASSOCIATION NAME] Fiscal year: ________ Date: ____________
Date of the last reserve study: ____________
Next study or update due: ____________ (per your documents / state)
Funding plan adopted from the study: [full / threshold or baseline / other]
Percent funded, if the study reports it: ______ %
RESERVE ACCOUNT (cash roll-forward)
Opening reserve balance $____________
+ Contributions actually made $____________
+ Interest earned $____________
- Spent on planned replacements $____________
- Spent on unplanned repairs $____________
= Closing reserve balance $____________
COMPARISON WITH THE BUDGET AND THE STUDY (not added to the account)
Contribution budgeted for the year $____________
Contribution actually made $____________
Variance (over / under budget) $____________
Balance the study projected for this date $____________
Closing reserve balance (from above) $____________
Difference (over / under the study) $____________
COMPONENTS REPLACED OR REPAIRED THIS YEAR
Component Study estimate Actual cost
__________________ $____________ $____________
__________________ $____________ $____________
__________________ $____________ $____________
COMPONENTS MOVED EARLIER OR LATER THAN THE STUDY ASSUMED (and why)
______________________________________________________________
______________________________________________________________
Does the study need an update now? [yes / no] Reason: ____________
Reviewed by the Board on: ____________ Minutes reference: ____________
Signed: ____________ (Treasurer)
A worked example: Florida condominiums
To show how specific a rule can become, here is what Florida's condominium statute says about its structural integrity reserve study (SIRS), in § 718.112(2)(g). It applies to Florida condominiums only; do not assume it for an HOA or another state.
- Who and how often. A residential condominium association must have a structural integrity reserve study completed at least every 10 years after the condominium's creation, for each building of three habitable stories or higher.
- What it covers. At a minimum, the roof; the structure; fireproofing and fire protection systems; plumbing; electrical systems; waterproofing and exterior painting; windows and exterior doors; and any other item with a deferred maintenance or replacement cost above $25,000 (or the inflation-adjusted amount, if greater) whose failure would affect the others.
- How. It is based on a visual inspection, and it must be performed or verified by a licensed engineer, a licensed architect, or a person certified as a reserve specialist or professional reserve analyst.
- Owners. Within 45 days after receiving it, the association must distribute a copy to each unit owner or deliver a notice that it is available for inspection and copying on written request.
The full definition, the deadlines and the 45-day notice are on our Florida SIRS glossary entry, and the reserve funding rules that go with it are in HOA budget template and reserve fund basics. For Texas, California, Arizona and everywhere else, look up your own statute.
How to do it in Unitify, and what we do not do
Unitify is not a reserve study tool and does not calculate remaining life or replacement cost. Here is where it helps with the work around the study:
- Billing turns the adopted budget into assessments, with a separate line for the reserve contribution, invoiced automatically and tracked as paid or overdue per unit, so the treasurer can compare contributions collected with contributions budgeted. You export to your accountant's tools for the general ledger and statements; Easybilly, Unitify's billing module, has no live two-way sync with accounting software out of the box.
- The equipment register gives each boiler, pump and valve a card with its system, type, location and service history, so the facts about a component do not live in one person's head (Base and Pro plans). It is a register, not a reserve study.
- Resident voting can run an owner vote or a survey on a budget item where your documents and state allow, with the tool recording votes rather than deciding legal validity.
Plans are priced per apartment per month, with a free plan: Free is $0, Base is $1 and Pro is $3. Billing is an add-on at $0.5 per invoice, free on Pro (see the pricing page). See the United States page or book a demo.
Frequently asked questions
What is an HOA reserve study?
A reserve study is a report that lists the common components an association must eventually repair or replace, estimates how many years each has left and what it will cost, and sets out a plan for how much to put in the reserve fund each year. The board uses it to set the reserve contribution in the budget.
What is in a reserve study?
Normally two parts. The physical part is an inventory of components with their condition, remaining useful life and replacement cost. The financial part compares the current reserve balance with what the plan needs and proposes a funding plan, with assumptions about inflation and interest.
Is a reserve study required for an HOA?
It depends on the state and on your governing documents. Under Florida condominium law, a residential condominium building of three habitable stories or higher needs a structural integrity reserve study at least every 10 years (Fla. Stat. § 718.112(2)(g)). This page does not summarize other states, so check your own statute and documents.
How often should a reserve study be updated?
On the schedule your governing documents or state law set, and sooner when costs change materially, a major component is replaced early or the association takes on a new amenity. Many boards review the study every year when they build the budget, even when a full update is due less often.
How much does a reserve study cost?
It depends on the size of the community, the number of components, whether the preparer visits the site and whether it is a first study or an update. We give no price because it varies; get written quotes from several qualified preparers and compare what each includes.
What are full, threshold and baseline funding?
They are common industry names for funding plans, not legal requirements unless your documents or state say so. Full funding aims to keep the reserve at the level the study calculates as needed at each point. Threshold or baseline funding aims to keep the balance above a chosen minimum. A plan that relies on special assessments instead of building a reserve is not a funding plan so much as a decision to bill owners later.
Who prepares a reserve study?
A qualified professional such as a reserve specialist, an engineer or an architect. Who may prepare it is a state question. Florida condominium law, for its structural integrity reserve study, allows a licensed engineer, a licensed architect, or a person certified as a reserve specialist or professional reserve analyst (Fla. Stat. § 718.112(2)(g)).