How to read an HOA reserve study: percent funded, funding plans and red flags

If you are buying into an HOA or condominium, or you already own one and the dues just went up, the reserve study is the document that explains why. It is often 40 to 80 pages of tables. This guide shows what to read, what the numbers mean, and which ones should worry you.

What a reserve study is

A reserve study is a budgeting tool for the association's long-lived, expensive items: roofs, paving, painting, elevators, pools, siding. Under the Community Associations Institute (CAI) Reserve Study Standards, it has two parts:

• The physical analysis. An inventory of the components, their condition, how long each one lasts, how long it has left, and what it will cost to replace.
• The financial analysis. The fund status (how much is saved, and how that compares with what's needed) and a funding plan: how much to put into reserves each year for at least the next 30 years.

CAI describes four levels of service:

Check the date and the level on the cover. Association Reserves, a large reserve study firm, treats an update with a site visit at least every three years as best practice, with no-visit updates in between (Reserve Studies 102). A five-year-old study without a site visit may not reflect today's construction costs or a roof that aged faster than planned.

Look for who prepared it. Reserve specialists often hold CAI's Reserve Specialist (RS) designation or the Association of Professional Reserve Analysts' Professional Reserve Analyst (PRA) designation. Engineers and architects prepare them too, especially for structural items.

The component list

Under CAI's 2023 standards, an item belongs in the reserve study when three things are true: the association is obligated to maintain or replace it, the need and timing can be reasonably anticipated, and the total cost is material and can be reasonably estimated. Items the owners maintain themselves, or small costs paid from the operating budget, stay out.

For each component, expect these columns:

• Useful life (UL): how many years the item lasts, with normal maintenance.
• Remaining useful life (RUL): how many years it has left. An RUL of 0 means the work is due this year.
• Current replacement cost: today's price for the repair or replacement, including related costs.

The lives vary with material, climate and maintenance. As an illustration only, Association Reserves' published sample studies use figures like these:

Sources: Association Reserves sample studies (full study sample, mid-rise condo sample). Your study's numbers will differ, and that's fine. What matters is whether they look plausible for your building, and what's coming due soon.

What to do with the list: sort it by remaining life. Everything with an RUL of five years or less, and a large cost, is the near-term bill. Then look for what's missing. A high-rise with no elevator line, an old building with no plumbing or balcony work, or a community with private roads and no paving entry should prompt a question.

The numbers that matter

Fully funded balance

The fully funded balance (FFB) is how much the association would have saved by now if it had put money aside for each component steadily from the day it was new. For each component:

FFB = current replacement cost × effective age ÷ useful life

Effective age is the useful life minus the remaining life. CAI's own example: a $10,000 component with a 10-year life and an effective age of 4 years has a fully funded balance of $4,000. Add up every component and you have the association's FFB.

Percent funded

Percent funded is the actual reserve balance divided by the fully funded balance. If the association has $600,000 saved and its FFB is $1,500,000, it is 40 percent funded.

Association Reserves uses a rule of thumb that most buyers will meet in some form (Reserve Studies 102):

CAI's standards make a point worth repeating: percent funded is not, by itself, a measure of whether reserves are adequate. A community at 45 percent with nothing big due for 15 years may be fine. A community at 75 percent with a $3 million roof due next year may not be.

The shortfall per unit

Some studies (and in California, the reserve summary) show the gap between what's saved and what's needed, divided by the number of units. That figure is the cleanest way to see what underfunding means for you. A $400,000 shortfall across 100 homes is $4,000 per home.

The funding plan

The funding plan sets the annual contribution, and most studies present one or more of these goals, defined in CAI's 2023 standards:

• Full funding: reach and stay at or near 100 percent funded. The most conservative plan. Contributions are higher now, and special assessments are least likely.
• Threshold funding: keep the reserve balance above a chosen dollar amount or percent funded. It can sit above or below full funding, depending on the threshold the board picks.
• Baseline funding: keep the reserve cash balance above zero, without any cushion. CAI calls it not recommended as a long-term plan, because any surprise can mean deferred work, a special assessment or a loan.

The Association of Professional Reserve Analysts' standards also name statutory funding: setting aside the minimum a state law requires.

Then read the 30-year cash flow table. It shows each year's opening balance, contributions, expenses and closing balance. Look for the year the balance gets lowest, and what it's down to. A plan that dips to a few thousand dollars the year the roof is replaced has no room for a cost overrun.

The test that matters most: compare the contribution the study recommends with what the current budget actually puts into reserves. If the board contributes less than the study's plan, ask why, and how it intends to cover the difference.

How it connects to special assessments

A special assessment is what happens when a component comes due and the money isn't there. CAI's standards say plainly that low funding can lead to project delays, special assessments or a line of credit. Our guide to special assessments covers how they are levied and who pays at closing.

From the reserve study, you can usually predict one:

1. Find the expensive components with five years or less remaining.
2. Add up their cost.
3. Compare that with the reserve balance plus the next few years of planned contributions.
4. If there's a gap, divide it by the number of units. That's roughly your share, unless the board raises dues, borrows or defers the work.

What state law adds

Some states set rules for reserve studies. Two examples:

• California. The board must have a visual inspection of the major components at least every three years and review the study every year (Civil Code 5550). It must adopt a funding plan (5560) and send owners a reserve summary with the annual budget report, including the percentage of required reserves on hand (5565, 5300). The Assessment and Reserve Funding Disclosure Summary (5570) is a short form that shows percent funded now and for the next five budget years. Ask for it first.
• Florida. Condominium buildings three habitable stories or higher need a structural integrity reserve study (SIRS) at least every 10 years (Fla. Stat. 718.112(2)(g)). It covers items such as the roof, structure, fireproofing, plumbing, electrical, waterproofing and windows. Owners can no longer vote to waive or reduce reserves for those items, and existing associations had to complete their first SIRS by December 31, 2025. Milestone structural inspections apply to the same buildings (553.899).

Washington also requires reserve studies with regular updates (RCW 64.90.545). Other states require none. Ask your agent or attorney what applies where you're buying.

What lenders look at

Your lender cares about reserves too. Fannie Mae's condo project review, for example, expects the budget to put at least 10 percent of assessment income into reserves, or an acceptable reserve study that the budget actually follows (Selling Guide B4-2.2-02). Projects that need critical repairs are ineligible until the work is done (B4-2.1-03). Rules change, so ask your lender early.

Red flags

• No reserve study, or one more than three years old without an update.
• Percent funded under 30, or falling year after year.
• A baseline plan, or contributions below what the study recommends.
• Large components due within five years with too little set aside for them.
• A 30-year cash flow that dips close to zero.
• Obvious components missing, or costs that look years out of date.
• A study that assumes a dues increase the board hasn't adopted.
• Minutes or an engineer's report describing a problem that the study doesn't include.

Questions to ask the HOA

1. When was the study done, at what level, and by whom?
2. What is the current percent funded, and what was it three years ago?
3. Which funding plan did the board adopt, and does the budget fund the recommended contribution in full?
4. Which major components are due in the next five years, and how will each be paid for?
5. Are any special assessments, loans or dues increases planned or being discussed?
6. Has any component failed earlier than the study expected?
7. Is there an engineering or structural report that isn't reflected in the study?

A 20-minute reading order

1. The cover: date, level of service, preparer.
2. The executive summary: reserve balance, FFB, percent funded, recommended contribution.
3. The component list, sorted by remaining life.
4. The funding plan and the 30-year cash flow table, looking for the lowest year.
5. The current budget: is the recommended contribution actually there?
6. The minutes: anything the study hasn't caught up with.

Our resale package checklist puts the reserve study alongside the rest of the documents.

Check the whole package with FileAI

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Sources

• Community Associations Institute, Reserve Study Standards (2023), in Reserve Studies and Funding Resources (June 2026) and An Explanation of CAI's Reserve Study Standards (2025)
• Association of Professional Reserve Analysts, Standards of Practice
• Association Reserves, Reserve Studies 102 (2025) (percent funded ranges) and sample studies (full, mid-rise condo)
• California Civil Code 5300, 5550, 5560, 5565, 5570
• Florida Statutes 718.112 and 553.899; Washington RCW 64.90.545
• Fannie Mae Selling Guide, B4-2.2-02 Full review process and B4-2.1-03 Ineligible projects

This guide is general information, not legal or financial advice. Reserve study rules differ by state and change often: ask your real estate attorney, agent or the association's manager what applies to the home you're buying.