HOA reserve fund calculator — a 60-second health check
Enter four numbers your board already knows and get an instant estimate of where your reserves stand: your percent funded, reserves per door, special-assessment risk, and the monthly gap to a healthy fund. No reserve study required — just a fast, honest read on your reserve health.
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01What your result means
Percent funded is the number every board asks for first. It compares what you've actually saved to what a community your age and size ideally should have saved by now. The widely used zones — the same ones a professional reserve study reports against — break down like this:
Well positioned. Special assessments are rare at this level.
Workable, but worth a plan to climb toward 70%.
Elevated risk of a special assessment or reserve loan.
A major shortfall is likely already building.
The other two numbers add context. Reserves per door is your balance divided by units — a quick sanity check you can compare year to year. Special-assessment risk estimates the shortfall each owner could face if aging components come due before the fund catches up. Want the full picture on any of these? Read what percent funded really means, how much an HOA should hold in reserves, and the warning signs of an underfunded reserve fund.
02How the estimate works
This calculator is deliberately simple and transparent. It estimates the reserve balance a typical association should have accumulated by now — roughly $15,000 of reserve-funded components per unit, aged against a 25-year average component life — and compares your actual balance to that target. The monthly gap is what it would take to climb to a healthy 70% over the next several years while keeping pace with ongoing wear.
What it is not is a reserve study. It can't see your specific roofs, elevators, or paving, or their real condition and remaining life. Those are what a professional Level I or Level II study measures on site — and what turns an estimate into the exact number your board can budget and disclose against. If you're weighing that step, the complete guide to reserve studies walks through the whole process, and the state-by-state requirements show where a study is legally mandated.
03Frequently asked questions
How is percent funded estimated?
Percent funded compares what you've saved to what you ideally should have saved by now. This tool estimates the ideal balance from a typical blend of reserve components (about $15,000 per unit) aged against a 25-year average life, then divides your current reserves by that target. It's a benchmark estimate — a real study measures your actual components to produce the exact number.
What is a good percent funded for an HOA?
The common industry zones are: 70% or above is strong, 30–70% is fair, and below 30% is weak (under 10% is critical). Associations above 70% rarely need special assessments; those below 30% carry a materially higher risk of a special assessment or a reserve loan. Seventy percent is the usual target.
Is this the same as a reserve study?
No. This is a 60-second estimate from published benchmarks. A reserve study inventories every component, measures condition and remaining life on site, and projects 30 years of funding — and in many states satisfies a legal disclosure. Use this to gauge where you stand; use a study for the exact number and the compliance document.
What is special-assessment risk?
When reserves fall short of what aging components will cost to replace, the gap usually lands on owners as a one-time special assessment or a reserve loan. The calculator estimates that exposure as the shortfall between the ideal balance and your current balance, divided across your units — a rough dollars-per-unit figure.
How much should an HOA have in reserves per unit?
There's no single right number — it depends on the age and mix of your components — but reserves per door is a quick sanity check. A newer community needs far less per door than a mature high-rise with elevators and a pool. Percent funded is the more meaningful measure because it accounts for what your community actually owns and how old it is.
→Get your exact number
A benchmark is a great start. Apex Reserve Studio turns it into a real reserve study — the structured component inventory, a 30-year funding plan, all three NRSS funding options, and a branded PDF your board can adopt and disclose. Flat monthly fee, unlimited studies.
See a sample report → See pricing →