Form 1120-H vs. Form 1120 for HOAs: The Section 528 Election, the 60/90 Tests, and Revenue Ruling 70-604, Explained

Picture this. It is March, and the treasurer of a 240-unit condo association opens last year's books to find an unexpected surprise: the operating fund closed the year with $42,000 in excess assessments. Reserves are healthy, the parking lot was repaved under budget, and the bank statement looks great. Then the CPA sends a draft Form 1120 with a tax bill that wipes out a third of the surplus.

The treasurer panics, calls a board meeting, and learns something that nobody mentions at orientation: most homeowners associations can file a different return — Form 1120-H — that lets them exclude the bulk of their member income from tax altogether. They can also revisit a tiny piece of paperwork called the Revenue Ruling 70-604 election, which would have made that surplus question moot in the first place.

This guide walks through the choice between Form 1120 and Form 1120-H, the eligibility tests under Internal Revenue Code Section 528, the mechanics of the 70-604 vote, and the bookkeeping habits that make filing painless every spring. It is written for board members, treasurers, property managers, and the small-firm CPAs who serve them.

Why Homeowners Associations Have Their Own Tax Section

Most nonprofits are nonprofits because they pursue a charitable, educational, or religious purpose recognized under Section 501(c)(3) or one of its cousins. Homeowners associations do not fit that mold. They exist to manage shared property — roofs, hallways, pools, private roads, landscaping — on behalf of the owners who paid for it. The "association" is really a coordination layer between dozens or thousands of individual homeowners.

Congress acknowledged this in 1976 by enacting Internal Revenue Code Section 528. The idea was simple: if a hundred neighbors hire a single contractor to mow common lawns and pool their money to pay him, that pooling should not, by itself, create a taxable enterprise. The dues are really just shared expenses changing hands. So Section 528 lets a qualifying association elect to treat assessments from members for the upkeep of association property as "exempt function income" — outside the tax base entirely.

But Section 528 is an election, not an automatic status. The association files Form 1120-H every year to make the election, and it must meet four eligibility tests every year to qualify. If the election fails — or if the board never makes it — the association defaults back to being a regular C corporation under Form 1120, with all the complexity and audit exposure that brings.

Who Can File Form 1120-H

Three types of organizations qualify:

1. Condominium management associations. Owners hold units inside a shared building or complex; the association manages the common elements (lobby, elevators, structural exterior, mechanical systems).
2. Residential real estate management associations. Owners hold detached lots inside a planned community; the association manages shared infrastructure (roads, gates, pools, parks, landscape).
3. Timeshare associations. Owners hold a right to use, or a fractional interest in, vacation property; the association manages the resort's common areas.

Commercial property owner associations, business improvement districts, and trade associations do not qualify for Section 528 and must file Form 1120 or, in rare cases, claim exemption under another Code section.

The Four Tests for Section 528 Eligibility

To file Form 1120-H, an association must satisfy all four of these on a year-by-year basis:

The Organizational Test

The association must be organized and operated to provide for the acquisition, construction, management, maintenance, and care of association property. In practice, the governing documents — declaration, CC&Rs, bylaws — must give the association control over common property and obligate it to maintain that property. Almost every standard-form HOA satisfies this by design.

The 60% Income Test

At least 60% of the association's gross income for the tax year must consist of exempt function income. Exempt function income means dues, fees, or assessments paid by members as members, in their capacity as owners, to fund the upkeep of common property. Reserve contributions collected from owners count as exempt function income because they are still assessments paid to maintain association property.

Income that does not count as exempt function income includes interest on operating cash or reserve deposits, dividends from invested reserves, capital gains on the sale of association property, rental income from non-members renting clubhouse space, laundry-room and vending-machine revenue, and fees charged for services. Once a community starts running its clubhouse like a banquet hall, that revenue piles up on the wrong side of the ledger.

The 90% Expenditure Test

At least 90% of the association's expenditures for the year must be spent on the acquisition, construction, management, maintenance, and care of association property. Both current operating expenses (landscaping, insurance, pool service, utilities for common areas, management fees) and capital expenditures (roof replacement, road resurfacing, mechanical upgrades) qualify.

What does not qualify? Money spent on items that benefit only a subset of owners or that have no connection to the property itself — for example, sponsoring a member's child's sports team, paying for member social events that look more like entertainment than community building, or making outright donations to outside charities.

The 85% Residential Test

At least 85% of the units must be used for residential purposes. The test looks at units, not square footage, and timeshare associations are deemed to satisfy it automatically.

Each of these is annual. An association that breezed through the 60/90 tests for five years can flunk in year six if it earns a windfall from a cell-tower lease or runs an unusually large clubhouse rental program, and it would then have to file Form 1120 for that single year.

The Tax Math: A Flat Rate, But Only on a Narrow Slice

If the association makes the Section 528 election and qualifies, here is what gets taxed:

• Exempt function income (member assessments, dues, reserve contributions): not taxable.
• Nonexempt income (interest, dividends, non-member fees, rental income from non-members, capital gains on investments): taxable.
• The association gets a $100 specific deduction from nonexempt income before applying the rate.
• The rate is 30% flat for condominium and residential real estate management associations.
• The rate is 32% flat for timeshare associations.
• Both ordinary income and capital gains are taxed at the same flat rate. No favorable long-term capital gain treatment.

So an association with $850,000 in assessments and $12,400 of interest on reserve CDs would compute its tax like this:

Nonexempt income (interest)         $12,400
Less: directly connected expenses    ($0)    # bank fees, in practice usually trivial
Less: specific deduction            ($100)
Taxable income                      $12,300
Tax at 30%                           $3,690

The $850,000 of assessments never appears in the tax computation.

Now consider the same numbers under Form 1120, which would treat the association as a regular C corporation:

Gross income                       $862,400  # all assessments + interest
Less: total expenses              ($830,000)  # operating + reserves spent
Taxable income                      $32,400
Tax at 21%                           $6,804

For most communities, the Form 1120-H route comes out far ahead — unless the association had a difficult year and operating expenses exceeded operating assessments. In that scenario, the C-corp return can produce a deductible net operating loss that carries forward; Form 1120-H cannot generate or carry an NOL.

The Trap on Form 1120: Member Assessments as Taxable Income

Here is the part that trips up boards who let a Section 528 election lapse and fall back to Form 1120 without thinking it through. On Form 1120, all member assessments are presumptively taxable income unless the association can structure them out of gross income. The conventional way is to invoke Revenue Ruling 70-604: at an annual member meeting, the membership votes to either refund any excess of member income over member expenses or apply that excess to next year's assessments.

Done correctly, that vote means an HOA filing Form 1120 does not pay corporate tax on the surplus assessments at year-end, because those assessments are deemed prepayments toward next year's dues rather than current-year income. Done incorrectly — or skipped entirely — and the surplus shows up as taxable income at the corporate rate.

Revenue Ruling 70-604: The Most Important Document Your Membership Will Never Read

The ruling itself is a single page from 1970. Stripped of the legal scaffolding, it says: a homeowners association that has excess member income at year-end may choose to refund that excess to members or carry it over against next year's assessments, and the carryover prevents the surplus from being taxed as current-year income.

Several practical rules have hardened around the ruling over the decades:

The vote must be made by the membership, not the board. The ruling refers to "stockholder-owners" deciding what to do with the excess. Most CPAs treat this as requiring a formal vote of members at an annual meeting, with the resolution recorded in the minutes. A board-only resolution is risky.

The vote should happen on a recurring annual basis. This is a single-year election, not a perpetual policy. Every year that the association wants the protection, the members need to vote.

You may roll over OR refund, not transfer to reserves. A 1992 IRS Field Service Announcement made it clear: the only two permissible outcomes are a refund to members or a credit against next year's assessments. Sweeping excess operating funds into reserves does not qualify and would expose the surplus to tax.

The carryover must actually be absorbed the next year. You cannot use 70-604 to defer the same dollar forward indefinitely. If $40,000 is rolled over from year one, that $40,000 should be applied against year-two assessments and effectively reduce what members owe.

The vote should occur before the return is filed. Practically, that means holding the annual meeting between the close of the fiscal year and the filing deadline (April 15 for calendar-year associations, with extensions available via Form 7004).

A clean motion at the annual meeting looks something like: "Resolved, that any excess of member assessments over member expenses for the fiscal year ending December 31, 2025, shall be applied against the assessments of the members for the following fiscal year, in accordance with Revenue Ruling 70-604." Two or three sentences in the minutes are usually enough.

Why does this matter when you are filing Form 1120-H anyway? Two reasons. First, sometimes you switch to Form 1120 mid-stream — for example, in a year of large capital gains where the C-corp graduated structure beats the 30% flat rate. The 70-604 vote is still required on the 1120 side. Second, the IRS audit guide for homeowners associations explicitly looks for the vote, so making it a yearly habit removes ambiguity and protects the board.

Filing Mechanics: Dates, Forms, and the Year-by-Year Choice

Tax year. Most associations use a calendar year. Some choose a fiscal year that aligns with their assessment cycle, but most do not bother.

Due date. Form 1120-H is due on the 15th day of the 4th month after year-end. For calendar-year associations, that is April 15 of the following year. The same deadline applies to Form 1120.

Extension. File Form 7004 by the original due date for an automatic six-month extension of the filing deadline. Tax still owed must be paid by the original deadline; extensions do not extend payment.

The election is annual. Unlike most tax elections, choosing Form 1120-H is not a permanent commitment. The association picks each year, file by file. So an association can file 1120-H for nine years in a row, switch to 1120 for one anomalous year (perhaps because operating losses created a usable NOL), and switch back the following year. Many CPAs prepare both returns each year and let the board pick whichever produces the lower combined federal-and-state tax.

State conformity. Many states piggyback on Form 1120-H. A handful exempt the association from state tax entirely if it files 1120-H federally. A few states have their own quirks — California, for instance, has its own version (Form 100 with specific HOA election rules), and Florida's tax structure makes the choice less critical. Always check state filings separately.

Late filing. Penalties for filing late are calculated on tax due. Because exempt function income is not taxable, an association with no nonexempt income beyond a sliver of interest income often has minimal exposure. But the late-filing penalty for any return is a minimum of $485 (for 2025 tax years) if it goes more than 60 days past due, so do not assume "no tax owed, no penalty."

A Practical Example: Pinegrove Estates HOA

Pinegrove Estates is a 180-home planned community in suburban Atlanta. Here is the 2025 income statement, simplified:

Operating and capital expenses totaled $812,000, of which $782,000 went to property-related items (landscape, lighting, road repair, pool, gate replacement, management contract) and $30,000 went to a clubhouse social budget that did not directly relate to common-property upkeep.

Test 1: Is the 60% income test met?

Exempt function income = annual assessments + special assessment + reserve contributions + late fees from members = $720,000 + $54,000 + $96,000 + $6,300 = $876,300.

$876,300 ÷ $890,300 = 98.4% — comfortably above 60%. The Pinegrove board sometimes worries whether late fees count, but the IRS view is that fees imposed on members as members, in connection with their obligation to pay assessments, do count. Clubhouse rentals to non-members and CD interest are nonexempt.

Test 2: Is the 90% expenditure test met?

Property-related expenses = $782,000. Total expenses = $812,000. $782,000 ÷ $812,000 = 96.3% — above 90%. The $30,000 social budget is a watch-item; if Pinegrove ever ramps the social budget while operating expenses shrink, the ratio could tip below 90%.

Test 3: The 85% residential test

All 180 homes are single-family residential. Pass.

Test 4: Organizational test

The recorded declaration obligates the HOA to maintain roads, gates, the pool, and common landscape. Pass.

The tax computation

Nonexempt income = CD interest + clubhouse rentals = $9,800 + $4,200 = $14,000. Specific deduction = $100. Taxable income = $13,900. Tax at 30% = $4,170.

Compare with Form 1120: taxable income would be $890,300 − $812,000 = $78,300, taxed at 21% under the current flat C-corp rate, for $16,443. The Form 1120-H election saves Pinegrove approximately $12,000.

The 70-604 angle

If at year-end Pinegrove unexpectedly closed with $25,000 of excess assessments (because the gate replacement came in under bid), and the board decided to file Form 1120 instead of 1120-H, the 70-604 vote at the annual meeting would let that $25,000 escape current-year taxation by being applied against 2026 assessments. Even though Pinegrove plans to stick with Form 1120-H, the CPA recommends recording a 70-604 motion every year as cheap insurance — three sentences in the minutes, no cost.

Bookkeeping Habits That Make the Election Painless

If your books cannot quickly produce the numerator and denominator of the 60% income test and the 90% expenditure test, your CPA is doing reconstructive surgery every March. A few habits make audit-readiness a year-round state.

Separate operating, reserve, and special-assessment funds

Most well-run HOAs use fund accounting, dedicating separate accounts (and often separate bank accounts) for the operating fund, the replacement reserve fund, and any special-purpose funds. This is not just an accounting nicety; in many states it is legally required, and it gives you a clean audit trail when the IRS or a member asks where assessments went.

A typical chart of accounts has assets numbered 1000–1999 (operating checking, reserve money market, reserve CDs, assessments receivable), liabilities 2000–2999 (prepaid assessments, accrued expenses, deferred income from special assessments not yet earned), fund balances 3000–3999, income 4000–4999 (regular assessments, special assessments, reserve contributions, late fees, interest, clubhouse rental), and expenses 5000+ broken into operating categories.

Tag every dollar of income with an exempt/nonexempt code

Add a custom field or sub-account that classifies each income transaction as "exempt function" or "nonexempt." When the 60% test rolls around, the report writes itself. Plain-text accounting tools and most property-management systems support this without extra software.

Accrue assessments on the right side of year-end

Assessments billed in December but applicable to January's operating budget are prepaid — they belong on the balance sheet as a liability at year-end and roll into income in January. Recording them as current-year income inflates the surplus and complicates the 70-604 conversation.

Reconcile reserve CDs monthly

Interest income on reserve deposits is the most common piece of nonexempt income. Recording it monthly, with proper classification, prevents a frantic search through bank statements in April.

Keep a "decision file" for the board

A simple folder — physical or digital — that holds the annual 70-604 resolution, the most recent reserve study, the auditor's letter, and the prior year's Form 1120-H. When a new treasurer arrives, this file is the institutional memory.

Common Mistakes and How to Avoid Them

Skipping the 70-604 vote because "we file 1120-H anyway." The vote costs nothing and protects you in years when the 1120-H math goes sour and you need to switch. Make it an annual agenda item.

Treating reserve contributions as nonexempt income. Reserve contributions are still assessments collected from owners to maintain association property. They belong on the exempt side of the 60% test.

Letting clubhouse and amenity rentals to non-members balloon. A community that turns its clubhouse into a wedding venue can accidentally flunk the 60% income test or push too much expense onto the nonexempt side and flunk the 90% expenditure test. Track the trajectory.

Filing late because nothing was owed. The minimum late-filing penalty applies even when zero tax is due.

Forgetting the $100 specific deduction. Small, but it is the only deduction Form 1120-H gives you against nonexempt income.

Trying to sweep operating surplus into reserves under 70-604. Not allowed — the only choices are refund or carryover.

Missing state-level conformity rules. California's filing process is different. Florida exempts most HOAs from state income tax. Texas's franchise tax has its own thresholds. Always run the state return alongside the federal.

Assuming the election is permanent. It is annual. Re-evaluate every year, especially after capital projects, refinancings, or large reserve interest swings.

When Filing Form 1120 Instead of 1120-H Makes Sense

The Form 1120-H route wins for the vast majority of associations, but there are scenarios where the standard C-corp return is cheaper:

1. A loss year. An HOA whose operating expenses exceeded operating assessments may generate a usable NOL on Form 1120 that it can carry forward. Form 1120-H does not allow NOL generation or carryover.
2. High nonexempt income relative to net surplus. If the taxable nonexempt slice on Form 1120-H is large and the overall net income on a Form 1120 view would be small, the 21% C-corp rate may beat the 30% flat 1120-H rate.
3. Heavy capital expenditures with deductible characteristics. A C-corp return can match certain expenses against certain income in ways the flat 1120-H structure cannot.

The CPA's standard practice is to prepare a two-column comparison every year: 1120-H tax versus 1120 tax (with 70-604 election applied), and pick the lower number. The election does not need to be consistent year-over-year.

Keep Your Association's Finances Audit-Ready

Running a community association is harder than it looks. You are part landlord, part nonprofit director, part accountant — and the IRS treats your tax filing as if you knew exactly which lever to pull. A 60% test failure or a missed 70-604 vote can shift thousands of dollars from the reserve fund to the U.S. Treasury.

The boards that handle this well share one habit: they keep their books in a transparent, auditable, plain-text-friendly format that makes it trivial to answer questions like "how much of our income was exempt function income this year?" and "what did we spend on association property versus discretionary items?" When the books are clean, the tax election is a five-minute decision instead of a three-week scramble.

Beancount.io offers plain-text, version-controlled accounting that gives community associations complete transparency over every assessment, every reserve contribution, and every expenditure — no proprietary file formats, no vendor lock-in, and a clean audit trail every board, auditor, and CPA can follow. Get started for free and see why finance-minded volunteers and small-firm accountants choose plain-text accounting for the organizations they steward.