Free HOA Tools and Calculators

Last verified: September 8, 2026 · See updates

Most self-managed boards do not need to buy software to answer their first big questions, they need to run the numbers. These five tools do exactly that. Each one is free, runs entirely in your browser, asks for no signup, and sends nothing you type anywhere. Every formula and scoring rule is printed on the page, so you can check the math or adapt it in a spreadsheet.

How these work: all five tools are client-side, nothing you enter leaves your device. They are educational aids, not legal, tax, accounting, or reserve-study advice. The software-match tool ranks products from our published weighted rubric; rankings are never affected by compensation. One result card in that tool carries an inline affiliate disclosure where it applies, and our disclosure policy governs every relationship.

The five tools

HOA Reserve Fund Calculator

Enter your major components and current reserve balance to get a straight-line annual and monthly contribution, percent funded, and per-unit cost. Shows the method step by step so a treasurer can defend the number to the board. Not a reserve study, but the right first pass before you commission one.

Best for: treasurers setting or sanity-checking next year’s reserve contribution.

HOA Special Assessment Calculator

Split a special assessment across units by equal share, percentage interest, or square footage; model a monthly payment plan with or without interest; and compare the per-unit cost of an assessment against an association loan. Produces a plain-English summary a treasurer can paste into the notice.

Best for: boards facing a roof, paving, or reserve shortfall and deciding how to fund it.

HOA Software Match

Answer six questions about your association, size, primary need, condo vs. HOA, budget, fund accounting, and vendor maturity, and get a reasoned shortlist of up to three products drawn from our scored comparison. Includes an honest “stay on free spreadsheets” outcome when that is the right answer.

Best for: boards deciding whether, and what, to buy.

HOA Meeting Notice Deadline Calculator

Pick your state, the kind of meeting and the meeting date, and get the last date notice may go out, the earliest date where the statute sets a ceiling, and the statute each figure comes from. Covers the 49 states in our comparison table, with every clock and its citation printed beside the answer.

Best for: secretaries and presidents setting the mailing date for an annual, special or board meeting.

HOA Fine, Lien and Foreclosure Timeline by State

Enter your state and the date an assessment went unpaid, and get the fine process the statute requires, how the lien is perfected, how many months your lien beats the first mortgage, and every statutory deadline as a date. Covers the 29 states whose fine and lien rules our comparison table has verified at primary source, and says so for the other 20.

Best for: treasurers and presidents deciding what to do about a delinquent account.

Reserve Study Cost Estimator

Enter your state, your annual operating budget and your unit count, and get the two cost anchors national providers publish applied to your own numbers, the do-it-yourself route priced at $499 plus the 20 to 40 hours the provider publishes, and the cost per unit and per unit a year across the cycle your state sets. Says whether your state requires a study at all and who its statute allows to prepare it.

Best for: treasurers budgeting for a study, and boards deciding between a professional study and doing it themselves.

Management Cost Comparison Calculator

Compare the yearly cost of full self-management, a hybrid bookkeeping service, and a full management company side by side, including a dollar value for the volunteer hours nobody usually prices. Reports cash cost and total cost separately so you see exactly what a management company buys back.

Best for: boards weighing “should we stay self-managed?”

Working from our data instead

If you would rather read the numbers than answer questions, our HOA Software Pricing Transparency Dataset publishes what 30 HOA software vendors charge, which of them publish a price at all, and a normalised monthly cost at 100 units. Free CSV and JSON.

Which tool should you start with?

New or unsure whether to self-manage at all? Start with the management cost comparison, then take the self-management readiness assessment.
Staying self-managed and shopping for software? Run HOA Software Match, then check the scored comparison and normalized pricing.
Chasing unpaid dues or sending a fine letter? Check what your state's statute requires, and what your lien is worth against the first mortgage, with the fine, lien and foreclosure timeline, then work the account with the delinquent dues collection workflow.
Running the annual meeting or a board meeting? Work out the mailing date with the meeting notice deadline calculator, then draft the meeting with the agenda and minutes templates.
Setting a budget or reserve contribution? Use the reserve fund calculator alongside the reserve study guide.

Prefer a downloadable spreadsheet?

When you want something to keep and edit rather than a one-time calculation, our free templates and spreadsheets include a dues ledger, an annual budget workbook, an operations calendar, and a vendor comparison scorecard, all in the same Board Starter Pack. The tools above answer a question now; the templates give you a file to run all year.