Quick answer
An HOA reserve fund is money an association sets aside for major repairs and replacements of shared components, such as roofs, paving, pools and elevators, that are too large and infrequent for the operating budget. A reserve study estimates when each item will need work and how much the association should save each year.
Most associations are behind. Reserve study firm Association Reserves, looking at more than 100,000 reserve studies it prepared between 1986 and 2025, found that 74% of the communities were underfunded, meaning below 70% of their fully funded balance. In its most recent two-year period, which covered high inflation, the share reached 82%, the highest the firm has recorded. It points to higher construction costs and closer scrutiny after the 2021 Champlain Towers South collapse in Surfside, Florida. The firm notes the data reflects its own clients, not a national sample.
When a major repair arrives and the money is not there, the choices are hard: a special assessment, a loan, or deferring the work and accepting the risk that it gets worse. This guide explains what an HOA reserve fund is, how much an association should hold, how to estimate contributions, what state law requires and what boards can do when reserves fall short.
HOA Reserve Fund vs Operating Fund
Keeping these two funds separate is the most basic financial discipline in an association.
The operating fund pays predictable, recurring costs: landscaping, utilities, insurance, management fees and administration. Regular assessments refill it through the year, and the board budgets it annually.
The reserve fund pays for major, infrequent work: roof replacement, road and parking resurfacing, pool equipment, elevators, HVAC in shared buildings, exterior painting, fencing and drainage. None of these are surprises. Every component has an expected life, and reserve planning is saving for each replacement before it arrives. For how both funds fit into the annual plan, see our HOA budget guide.
Using reserves for operating costs
Many states and governing documents restrict it, and it quietly drains the cushion the community depends on. Some states allow a temporary transfer under strict conditions. California, for example, requires notice, written findings and repayment within one year under Civil Code 5515. Check your state law and documents before moving any reserve money.
How Much Should an HOA Have in Reserves?
The standard measure is percent funded: the association's actual reserve balance divided by its fully funded balance. The fully funded balance is what the fund would hold if the association had saved for every component in step with its age, so a 20-year roof that is 10 years old would have half its replacement cost set aside.
Source: Association Reserves, How Much Should an HOA Have in Reserve? These are industry benchmarks, not legal requirements. Your reserve study sets the right target and contribution for your community.
How to Estimate Your HOA Reserve Contribution
A reserve study does this properly across every component, with inflation and interest built in. A simple version helps boards see where the numbers come from. For each component:
• Fully funded balance = replacement cost x (current age / useful life)
• Annual contribution to reach full funding = (replacement cost - money already set aside for it) / remaining useful life
Here is an illustrative example for one component, with made-up numbers:
Add the same math across every component and you have a rough reserve budget. Treat it as a check on your understanding, not a substitute for a professional study, which accounts for inflation, interest, component condition and a 30-year cash flow. See our guide to HOA reserve studies for what a study covers, who prepares it and how lenders use it.
What a Reserve Study Does
A reserve study is the plan behind the reserve fund. A preparer inventories the components the association must maintain, assesses each one's condition and remaining life, estimates replacement costs, and recommends an annual contribution, usually over a 30-year horizon. Many associations update the financial projections every year and do a full update with a site inspection every few years; several states set the schedule by law, as shown below. For more detail, see HOA reserve studies.
HOA Reserve Fund Requirements by State
Reserve rules vary widely. Here is what the statutes in several key states require, checked November 2026.
Sources: Cal. Civ. Code 5550; Florida HB 913 Senate summary and Withum on HB 913; NRS 116.31152; Maryland HB 107 and PropFusion Maryland guide; Va. Code 55.1-1826; RCW 64.90.545; C.R.S. 38-33.3-209.5; PropFusion Texas law guide. This table is a summary, not legal advice; rules change often, so confirm current requirements with a community association attorney.
For state detail, see our guides to new HOA laws in Florida, California HOA law changes for 2026 and Texas HOA law. Condo boards should also see our guide to condo association management software for the building records these rules depend on.
What Happens When HOA Reserves Are Underfunded?
When a major expense arrives and the reserves cannot cover it, the board usually has three options:
• Special assessment: a one-time charge to every owner to cover the shortfall. Rules and limits vary by state; see our guide to HOA special assessments.
• Association loan: borrowed money repaid through future assessments, adding interest and reducing flexibility.
• Deferred maintenance: postponing the work, which usually makes the problem bigger and more expensive.
Underfunding can also matter when owners sell. Buyers, lenders and insurers increasingly look at an association's reserves, especially for condominiums. Boards facing a large gap should talk to their attorney before levying an assessment and explain the plan to owners early.
How to Close a Reserve Funding Gap
• Update the reserve study so the plan reflects current costs and conditions.
• Raise contributions in steps over several years rather than all at once.
• Recheck the component list and remove items the association is not responsible for, or add ones that were missed.
• Use a special assessment or loan for an urgent project, then rebuild contributions so it does not happen again.
• Report percent funded and the catch-up plan to owners every year.
HOA Reserve Fund Accounting
Keep reserve money in its own bank account and its own fund in the books. Record reserve contributions as they are billed, charge major expenditures to the reserve fund, and show the reserve balance as a separate line on the balance sheet. Report the balance and percent funded to owners at least once a year. For the full accounting treatment, see our HOA accounting guide, and for how boards share these numbers with owners, see HOA financial transparency.
HOA Reserve Fund Best Practices
• Update the reserve study on the schedule your state requires, with an annual financial review in between.
• Keep reserves in a separate account, never mixed with operating money.
• Report the reserve balance and percent funded to owners at least annually.
• Use 70% funded as a working benchmark, and let the study set the contribution path.
• When there is a gap, adopt a phased plan and explain it to owners.
• Update the component list after major projects or changes to the property.
• Confirm your state's current rules each year with a community association attorney.
Reserve funds in ManageCasa
ManageCasa is built for HOAs, community associations and the management companies that run them. Operating funds, reserves and special accounts sit on separate ledgers, and balance sheets, income statements and budget versus actual reports come from live data, so boards can report reserve balances to owners with confidence. See ManageCasa's financial tools, explore ManageCasa for HOAs and community associations, or book a free demo with the team at ManageCasa.
Frequently Asked Questions
What is an HOA reserve fund?
An HOA reserve fund is a dedicated savings fund for major repairs and replacements of common components, such as roofs, paving, pool equipment and elevators. It is kept separate from the operating fund, which pays day-to-day costs. A reserve study sets the yearly contribution based on each component's remaining life and expected replacement cost.
How much should an HOA have in reserves?
Follow your current reserve study, because the right amount depends on your components, their ages and their costs. As a benchmark, reserve study firm Association Reserves considers a fund over 70% of its fully funded balance strong, under 70% underfunded, and under 30% at high risk of not covering upcoming projects.
What happens if an HOA does not fund its reserves?
When a major repair arrives and the reserves cannot cover it, the board usually has three options: levy a special assessment, borrow and repay the loan through future assessments, or defer the work and risk higher costs later. Underfunded reserves can also concern buyers, lenders and insurers reviewing the association.
Are HOAs required to have a reserve fund?
It depends on the state and the governing documents. California, Nevada, Maryland, Virginia and Washington set reserve study schedules for many associations, and Florida requires structural integrity reserve studies for condo buildings of three or more stories. Texas has no statewide reserve mandate. Your governing documents may require reserves regardless.
Can an HOA use reserve funds for operating expenses?
Generally not, and many states and governing documents restrict it. Some states allow a temporary transfer under strict conditions. California, for example, requires notice of the board meeting, written findings and repayment within one year under Civil Code 5515. Check your state law and documents, and ask your association's attorney first.
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