Quick Answer: HOA accounting runs on fund accounting — the operating fund (day-to-day expenses) and the replacement/reserve fund (future major repairs) are tracked and reported separately under GAAP for common interest realty associations (FASB ASC 972). On the tax side, most associations choose annually between Form 1120-H (simple, 30% flat rate on non-exempt income) and Form 1120 (21% rate, more complexity and risk).

Fund Accounting: the Foundation Boards Get Wrong

A homeowners association is not a small business with one checking account. GAAP for common interest realty associations (FASB ASC 972) requires fund reporting: assessments collected for future major repairs and replacements belong in a replacement (reserve) fund, presented separately from the operating fund that pays landscaping, insurance, management fees, and utilities.

The cardinal sin of HOA bookkeeping is commingling — sweeping reserve money into operating cash to cover a budget shortfall. Beyond the GAAP problem, many governing documents and state statutes restrict borrowing between funds, and boards that do it informally often cannot show members where the roof money went. Clean fund accounting means separate bank accounts, separate ledgers or fund dimensions, and inter-fund borrowings documented with board approval and a repayment plan.

Reserves and Reserve Studies

The reserve fund exists to pay for the component inventory every association owns: roofs, pavement, elevators, pools, siding, painting. A reserve study — component list, condition assessment, remaining useful life, replacement cost, and a funding plan — is how boards decide what to assess. GAAP does not mandate a reserve study, but ASC 972 requires disclosures about estimated remaining useful lives, replacement costs, and the association’s funding policy, which in practice requires one. Some states legislate it directly: California, for example, requires a visual-inspection reserve study at least every three years with annual review (Civ. Code §5550).

Underfunded reserves show up eventually as special assessments — the thing members hate most and the number buyers’ lenders increasingly scrutinize.

Boards change. The books have to survive the turnover.

The most common finding when a new treasurer arrives is that operating and reserve funds have been commingled in practice even where the budget separates them on paper. If your association is heading into budget season, straighten that out first.

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The Annual Tax Decision: Form 1120-H vs Form 1120

Associations make a fresh election every year, and the right answer can change year to year.

Form 1120-H (IRC §528)

Qualification: at least 60% of gross income must be exempt function income (membership dues, fees, and assessments); at least 90% of expenditures must go to acquiring, building, managing, maintaining, or caring for association property; substantially all units must be residential (85% under Treas. Reg. §1.528-4); and no private inurement. See the IRS Form 1120-H instructions.
Tax: flat 30% (32% for timeshare associations) on non-exempt income — interest, nonmember payments, facility rentals — after directly connected deductions and a $100 specific deduction. Member assessments themselves are not taxed.
Why choose it: simplicity and safety. Exempt function income is off the table by statute, and 1120-H filers are not subject to estimated tax requirements.

Form 1120 (regular corporate return)

Tax: 21% flat corporate rate — lower than 30%, which is the entire attraction.
The catch: ALL income is potentially taxable, including excess member assessments, unless managed. Under Rev. Rul. 70-604, members can elect to refund excess assessments or apply them to the following year’s assessments so they escape tax — but the election must actually be made by the membership, documented, and handled as a one-year carryover, not a perpetual rollover. Form 1120 filers also face estimated taxes and materially higher exam complexity.

Worked example

An association collects $500,000 in member assessments and earns $12,000 of interest on reserves. Operating and property expenditures easily satisfy the 90% test.

1120-H: assessments are exempt function income — untaxed. Taxable income is the $12,000 interest minus the $100 deduction (no meaningful directly connected deductions here): $11,900 × 30% = $3,570.
1120: the same interest at 21% = $2,499 — but only if a valid 70-604 election handles the $18,000 of excess member income the association also happened to run this year. Get that wrong and the 21% applies to $30,000, not $12,000 ($6,300), plus estimated-tax exposure.

The $1,071 annual savings from Form 1120 is real when the compliance is airtight — and evaporates the first year the election is missed. This is exactly the judgment call an association’s CPA should make annually, not by default.

Audits, Reviews, and State Thresholds

Many states tie required CPA financial statement services to revenue. Two examples: California requires a CPA review when gross income exceeds $75,000 (Civ. Code §5305); Florida HOAs scale from compiled statements ($150,000–$300,000) to reviewed ($300,000–$500,000) to audited at $500,000+ of revenue, with associations over 1,000 parcels requiring audits regardless (Fla. Stat. §720.303(7)). Governing documents frequently impose their own requirements on top of state law. Boards should confirm their state and documents every year — the threshold you crossed quietly at budget time becomes a compliance failure at year end.

Common Mistakes

Commingling operating and reserve cash — or borrowing between funds with no documentation.
Defaulting to the same tax form every year without running both computations.
Missing or undocumented 70-604 elections on Form 1120 years.
Booking special assessments as current income when they are collected for capital projects and may warrant different treatment.
No ASC 972 reserve disclosures in the financial statements members and buyers rely on.

FAQs

Is an HOA a nonprofit? Does it pay taxes?

Most HOAs are state-law nonprofit corporations but are NOT federally tax-exempt. They file Form 1120-H or 1120 every year and pay tax on non-exempt income like interest.

What counts as exempt function income on 1120-H?

Dues, fees, and assessments from owners in their capacity as members — not payments for extra services, not nonmember income, not interest.

Can the association skip a year of the 1120-H election?

The election is annual — each year stands alone, which is why the 1120 vs 1120-H comparison belongs in every year-end process.

How much should be in reserves?

What the reserve study’s funding plan says — “percent funded” against the study is the metric lenders and buyers look at. There is no universal dollar rule.

Does a self-managed HOA need a CPA?

At minimum for the annual tax election and any state-required review or audit. Fund accounting setup and monthly oversight are where self-managed boards most often need help.

On the tax side, the annual choice between Form 1120-H and Form 1120 can swing an association’s bill tenfold in a special assessment year — see Form 1120-H vs. Form 1120 for HOAs.

Accounting Built for Associations

We provide fund-accounting bookkeeping, reserve tracking, and the annual 1120-H vs 1120 analysis for associations and their management companies. Start with our real estate accounting services, related reading on CAM reconciliation, or contact us.

A related form of restricted-fund accounting. Associations and nonprofits both hold money that is committed to a purpose rather than freely available. Nonprofit bookkeeping works through the same reserve-and-restriction logic in the 501(c)(3) context.

If your board or management company wants this handled rather than explained, our HOA accounting services cover fund accounting, reserve tracking, the monthly board package and the annual 1120-H or 1120 decision.

Reserves deserve their own treatment — percent funded, the study behind it, and the tax on reserve interest are covered in HOA reserve fund accounting.

Most associations are too small to employ an accountant and too heavily regulated to leave the books to a volunteer treasurer who changes every two years. That gap is what outsourced accounting exists to fill: a real monthly close, reserve tracking and board-ready financials produced by the same team each month, with continuity that survives a change of board.

Where a management company runs the association rather than a self-managed board, the same figures have to survive a second audience: the owners. That is a different reporting discipline, and it is the one property management accounting is built around.

Talk to an accountant who works in your industry

Precision Accounting & Consulting works with contractors, law firms, medical practices and property owners across the country. If something on this page raised a question about your own books, send it over and we will give you a straight answer.