How are HOA dues calculated and divided among owners?
Reviewed by the OurHOA team · Updated July 2026
How boards build the annual budget, the formulas used to split assessments among homes - equal share, unit size, or fractional interest - and the uniformity rules that keep it fair.
It's two steps: set the budget, then divide it
Your assessment isn't a number the board picks out of the air - it's the output of a two-step process. First the board builds an annual budget: it adds up the coming year's operating costs (insurance, landscaping, utilities for shared areas, management, routine repairs) plus the amount the reserve study says should be set aside for big future replacements. Then it divides that total across the homes using the formula in the governing documents. Divide the community's yearly need by your share of it and you get your dues. That's why dues rise when insurance premiums or reserve contributions climb, not because someone is padding the bill.
The common ways dues get divided
There are three formulas you'll run into. The simplest is an equal share - every lot pays the same, common in planned communities of similar single-family homes. The second is by size - square footage, lot size, or number of units - so a larger home carries a larger slice of the shared cost. The third, standard in condominiums, is by fractional or percentage interest: the declaration assigns each unit an undivided ownership percentage of the common elements, and dues (and often voting power) track that percentage. Many condominium statutes require it this way - Florida's Condominium Act, at Fla. Stat. 718.115(2), directs that common expenses be shared in the exact proportions or percentages the declaration sets. Some communities blend methods, charging a base equal amount plus a size-based component.
Where the method comes from - and why it's hard to change
The allocation method lives in your recorded declaration (the CC&Rs) or the condominium plat, and it generally can't be switched on a whim. Because every owner bought relying on a fixed share, changing the formula - say, moving from equal shares to square-footage - usually takes a declaration amendment and the supermajority owner vote that requires, not a simple board decision. What the board sets each year is the total dollar amount, through the budget; how that total is split among homes is fixed by the documents. If your dues seem out of line with a neighbor's, the first thing to read is the assessment-allocation schedule in the declaration, because that's the math the board is bound to follow.
The uniformity rule: same basis for everyone
Whatever method applies, it has to be applied evenly. Assessments are meant to be uniform for owners in the same class - a board can't quietly charge one owner more for an identical unit, or assign costs by who it likes. Tiered or differing dues are lawful only when the governing documents actually authorize them: a community where single-family lots and townhomes legitimately carry different shares, for instance, or where only some homes can access a gated amenity. A differential the documents don't support is the kind an owner can challenge. We cover that line in detail in our guide on whether an HOA can charge different dues to different owners.
What to check, and how OurHOA helps
To understand your own bill, ask for the adopted annual budget and the declaration's assessment-allocation schedule - together they show both the community's total need and your share of it. If you think the math is wrong, put the question in writing and ask the board to walk through how your number was derived. For boards, dues disputes almost always trace back to unclear records: an outdated owner roster, a budget no one can find, or an allocation applied inconsistently. OurHOA helps small self-managed communities keep the budget, the owner list, and each home's assessment organized in one place, so the figure on every statement traces cleanly back to the budget and the documents - and lands the same way for every home. OurHOA is record-keeping software, not an accountant or a law firm, so confirm your community's specific allocation and any state rules with a qualified professional.
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.