A reserve fund is money an HOA sets aside specifically for major, predictable-but-infrequent expenses — repaving roads, replacing a roof, repainting a building, or overhauling an elevator. It's separate from the operating budget, which covers day-to-day costs like landscaping and utilities.

What a reserve study is

A reserve study is a professional assessment of every major shared component the association is responsible for — its expected lifespan, current condition, and replacement cost — used to calculate how much the association should be setting aside each year. Most associations commission a full study every few years, with cheaper "update" studies in between. States increasingly require these on a set schedule, especially for condo associations, following high-profile cases of deferred maintenance leading to serious structural problems.

Why underfunded reserves are a real risk

When an association hasn't saved enough, it has two options when a big expense comes due: take out a loan (repaid through higher dues) or levy a special assessment — a one-time bill, sometimes for thousands of dollars per household, due on a short timeline. Underfunded reserves are one of the most common — and most financially painful — surprises for HOA homeowners, and they're often invisible until the bill arrives.

How to check reserve health before buying

Ask for these three things during a home purchase:

  1. The current reserve study — look at the "percent funded" figure. Above 70% is generally considered healthy; below 30% is a warning sign.
  2. Recent board minutes — look for any discussion of upcoming major repairs or assessments.
  3. Dues history — frequent, large increases can indicate the board is playing catch-up on reserves.
Buying a condo? Many mortgage lenders now require a look at the association's reserve funding and any pending special assessments as part of condo loan approval — ask your lender or title company for their condo questionnaire early in the process.

Full funding vs. baseline funding

Associations generally aim for one of two funding philosophies: fully funding reserves to cover 100% of projected future costs, or baseline funding, which keeps the balance just high enough to avoid running out of money entirely. Fully funded associations have smoother dues, no surprise assessments, but higher regular dues today. Baseline-funded associations often look cheaper upfront but carry more special-assessment risk down the line.

This article is for general education and isn't financial advice. Reserve requirements and disclosure rules vary by state — review your specific association's most recent reserve study.

Related: HOA fees explained · What is an HOA? · Find an HOA accountant · Find an HOA lender