How often does an HOA have to update its reserve study?
Reviewed by the OurHOA team · Updated June 2026
How often an HOA must update its reserve study - the typical full-study and annual-update cycle, state requirements like California's three-year rule, and why staying current prevents special assessments.
A reserve study isn't a one-time document
A reserve study is the board's long-range plan for funding big-ticket repairs and replacements - the roof, the pool, the roads, the elevators - and it only works if it's kept current. Costs rise, components age faster or slower than predicted, and the reserve balance changes every year, so a study done once and shelved quickly drifts out of step with reality. That's why reserve planning runs on a cycle: a thorough study at intervals, refreshed by lighter updates in between, so the funding plan always reflects what the community actually has and what it actually costs to replace. The question isn't whether to update it but how often.
The typical cycle: a full study every few years, updates in between
The common professional practice is to commission a full reserve study with an on-site inspection every three to five years, then update it - usually annually - in the years between. The full study re-examines the components, re-measures their condition, and rebuilds the cost and funding projections from the ground up. The annual update keeps the numbers honest between full studies: it rolls the plan forward a year, adjusts for inflation and for any components that were repaired or replaced, and resets the recommended contribution. Boards that update annually rarely get blindsided, because each year's budget is built on a fresh look at the reserve plan rather than a stale one.
What your state may require
Some states put the cycle into law rather than leaving it to best practice. California is the clearest example: an association must conduct a reserve study, including a visual inspection of the components it maintains, at least once every three years, and must review that study annually and adjust it as needed (Cal. Civ. Code 5550). Other states - among them Nevada, Hawaii, Virginia, Washington, Utah, and Colorado - have their own reserve-study or reserve-disclosure requirements with varying intervals and content. Where no statute sets a cycle, the governing documents or sound fiduciary practice fill the gap. Check your state's HOA or condominium act and your CC&Rs for the interval that binds your board.
Three levels of update - with and without a site visit
Reserve professionals generally describe three levels of service, and knowing them helps a board ask for the right one. A full study (a 'level one') includes an on-site inspection and a complete component inventory - what you'd order for a brand-new community or when the old study is badly out of date. An update with a site visit (a 'level two') keeps the existing inventory but re-inspects the components in person to catch changes in condition. An update without a site visit (a 'level three') refreshes the financial projections - balances, inflation, contributions - from the desk, without a new inspection. A sensible cycle mixes them: periodic on-site studies anchored by lower-cost financial updates in the intervening years.
Why staying on cycle matters
An out-of-date reserve study is how communities walk into special assessments. If the plan hasn't tracked rising replacement costs or a component that's failing early, the reserve fund quietly falls behind what it will actually need, and the gap eventually lands on owners as a lump-sum special assessment - the exact scenario our guide on special assessments describes. Keeping the study current also keeps the reserve line in everyone's dues set at the right level; our guide on the reserve contribution in your dues explains how that monthly amount ties back to the study. Regular updates turn a sudden, painful bill into a small, predictable adjustment - which is the whole point of funding reserves in the first place.
How OurHOA helps
Keeping a reserve plan on cycle is largely about not losing track - knowing when the last study was done, when the next one is due, and how the actual reserve balance is tracking against the plan. OurHOA gives a self-managed community one place to keep its reserve study and financial records and to see the reserve balance alongside the budget, so the board remembers to refresh the study on schedule and can fund it consistently year to year. That keeps a small community's long-range planning from slipping. OurHOA is software for keeping a community's records and finances organized, not a reserve-study firm or a law office - for the update interval your state requires and a professional analysis of your components, engage a qualified reserve-study provider and review your governing documents.
OurHOA is the friendly, affordable way self-managed communities keep dues, records, and reminders in one place. See how it works.
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.