TLDR
Fund commingling—using a single account or single ledger to hold both operating and reserve funds—is the most common source of personal liability for volunteer HOA board members. Most state HOA statutes require fund separation, and most audits of small self-managed HOAs find at least some level of commingling. The fix is not complicated, but it requires the right accounting structure. General-purpose software like QuickBooks cannot enforce it. Purpose-built HOA accounting software with fund accounting can.
Why commingling is so common in small self-managed HOAs
Commingling is almost never intentional. It happens because a volunteer treasurer several board cycles ago set up the simplest possible structure—one bank account, one QuickBooks file—and subsequent treasurers inherited it without questioning whether it satisfied legal requirements. Each year the structure continued, the exposure compounded.
By the time a new treasurer with accounting awareness looks at the setup, there may be years of mixed transactions to unpack. The good news is that you do not need to unpack them. The remediation is prospective: fix the structure going forward, document the current reserve balance based on bank statements, and establish controls that prevent future commingling.
The software problem
QuickBooks is the most common tool in HOA commingling situations because it is the most common accounting software generally, and it was not designed for HOA fund accounting. QuickBooks workarounds—classes, sub-accounts—look like fund separation but do not enforce it. Every month, the treasurer must manually ensure that reserve contributions are allocated correctly. One month of missed allocation is commingling.
Purpose-built HOA accounting software with native fund accounting eliminates this risk by design. The allocation is configured once. Every transaction posts to the correct fund automatically. There is no monthly manual step to forget.
The personal liability argument
Most volunteer board members are surprised to learn that fund commingling creates personal liability exposure—not just organizational risk for the HOA. The surprise reflects how common the problem is and how rarely it results in visible consequences. Consequences surface when a capital project failure triggers a large special assessment, when an HOA is audited in connection with a unit sale dispute, or when a homeowner who loses money challenges the board’s reserve management directly.
Documentation that the board identified commingling and corrected it—with dates, authorized transfers, and accounting structure changes documented in minutes—is the board member’s primary protection. The remediation steps in this guide are designed to create that documentation.
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See plans & pricing- Fund Commingling
- The practice of holding operating funds and reserve funds in the same bank account or treating them as a single accounting pool without separate balance sheets. Prohibited or restricted in most states, and grounds for personal liability claims against board members.
DEFINITION
- Fund Separation
- The accounting and banking structure that maintains operating and reserve funds as distinct pools with independent balances, reports, and (typically) separate bank accounts. The standard structure for HOA compliance in most states.
DEFINITION
- Reserve Transfer
- The monthly or periodic movement of funds from the operating account to the reserve account equal to the reserve contribution for the period. When properly structured, reserve transfers are automatic allocations at the time of assessment collection—not manual transfers that happen separately.
DEFINITION
- Cross-Fund Transaction
- A transaction that moves money from one fund to another (e.g., using reserve funds to pay operating expenses). Cross-fund transactions should require board authorization and be documented in minutes. In proper HOA fund accounting software, they require explicit approval.
DEFINITION
Q&A
What causes HOA fund commingling?
The most common cause is a single bank account or single accounting ledger used for all HOA funds, often set up years ago by a treasurer who was not aware of the legal separation requirement. QuickBooks setups that use one account with category-level separation are also a common source—they look like they might satisfy the requirement but do not enforce it. New treasurers who inherit these structures often do not know the problem exists until an audit or a homeowner challenge surfaces it.
Q&A
How quickly can a treasurer fix fund commingling?
Opening a separate reserve bank account takes one to two weeks (bank account opening process). Reconfiguring accounting software with proper fund structure takes a few hours with the right software or a CPA engagement for QuickBooks reconfiguration. Transferring the reserve balance to the new account requires board authorization and documentation in minutes. Total timeline from decision to proper structure: two to four weeks. Documenting the remediation for the record takes one additional board meeting.
Frequently asked