How should an HOA invest its reserve funds?
Reviewed by the OurHOA team · Updated July 2026
Safety first, then liquidity, then yield. How boards use FDIC limits, CD ladders, and the reserve study to put idle money to work without gambling with it.
Why this question comes up at all
A community that funds its reserves properly ends up sitting on a pile of money it will not spend for years. A 200 home association saving for a road overlay and a clubhouse roof might be holding 400,000 dollars that has no job until 2031. Leaving that in a checking account earning nothing is a real cost, because construction inflation keeps moving while the balance does not. The instinct to do something with it is correct. The trouble starts when a board member who does well in his own brokerage account suggests the association do the same thing.
The order of priorities is not negotiable
Every reserve investment decision runs through three filters in a fixed sequence: safety, then liquidity, then yield. Yield comes last, and it is the only one most people want to talk about. The reason for the order is that a board is spending other people's money under a fiduciary duty, and there is no version of the math where earning an extra percent justifies putting the roof fund at risk. Practically this rules out stocks, bond funds, crypto, and anything with a share price that can be lower on the day you need the money. What is left is bank deposits, certificates of deposit, money market deposit accounts, and United States Treasury securities. That list looks boring because it is supposed to.
What your documents and your state allow
Before designing anything, read the declaration and bylaws, because many sets of documents contain an investment clause that narrows the field further, sometimes to federally insured deposits only. Several states layer statutes on top of that, and a few limit associations to government backed instruments. States also regulate the mechanics of moving the money rather than just where it sits. California is the detailed example: under Civil Code section 5380, a managing agent cannot transfer funds out of the association's reserve or operating accounts without prior written board approval unless the amount is under a threshold, which is the lesser of 5,000 dollars or five percent of budgeted income for associations of 50 or fewer units, and the lesser of 10,000 dollars or five percent for larger ones. Many communities also write a two signature requirement into their own policy for reserve withdrawals. None of that is about returns, but it is where most of the actual losses in this area come from.
FDIC coverage is per bank, not per account
This is the detail boards get wrong most often. FDIC insurance covers 250,000 dollars per depositor, per insured bank, per ownership category. The association is one depositor. Opening four accounts at the same bank does not give you a million dollars of coverage, it gives you 250,000 dollars of coverage across the four. An association holding more than that at one institution has uninsured money sitting there, which is a fact worth knowing whether or not you think that particular bank is sound. There are two clean ways around it. Spread deposits across separate unaffiliated banks, which is simple but means more statements to reconcile every month. Or use a deposit network service such as ICS or CDARS, where you deal with one bank and it places your money across many member institutions in insured increments. Treasury securities sidestep the question entirely, since they are backed by the federal government rather than by an insurance fund with a cap.
Let the reserve study set the maturities
The reserve study already tells you when you need money and how much, so use it as the maturity schedule instead of guessing. Keep enough in a checking or money market account to cover normal operations plus any surprise, since a failed pump or a storm cleanup does not wait for a CD to mature. Then ladder the rest against the study. Say the pool resurfacing lands in year two and the roofs in year five: buy CDs or Treasuries maturing in those years so cash arrives when the contract gets signed. A common structure is rungs at six or twelve month intervals, so something matures regularly and you can either spend it or roll it into a new longer rung at whatever rates have become. The point of the ladder is not to squeeze out yield, it is to avoid the situation where you break a CD early and eat a penalty because the money was locked up on the wrong schedule.
The parts boards forget
Interest is taxable to the association. Reserve interest is nonexempt function income, so an association filing Form 1120-H pays a flat 30 percent on it, less directly related expenses and a 100 dollar deduction, and that changes what a headline rate actually nets you. Reserve money also has to stay segregated from operating money, in its own account with its own records, or the line between the two blurs and borrowing from reserves becomes something that happens by accident. Put the whole approach in a written investment policy the board adopts by vote: what instruments are allowed, the maximum maturity, how insurance limits get respected, who signs, and how often it gets reviewed. It takes a page. The value of writing it down is that it survives turnover, so the treasurer three years from now inherits a rule rather than a habit, and owners can see where the money is without having to ask. Keeping that policy, the reserve study, and the account statements in one place every future board can reach is exactly the kind of continuity OurHOA is built for.
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These guides are general education for HOA boards and residents, not legal, tax, or financial advice. Rules vary by state and by your community's governing documents - check with a professional for your situation.