Illinois HOA law

Illinois condo and HOA assessment increases

Illinois does not cap dues, but it gives owners a trigger. A budget over 115% of last year can be challenged by petition. Here is how the 115% rule works and what to read in the disclosure package.

The short version. Illinois does not put a hard cap on assessment increases, but it gives owners a specific check. Under the Condominium Property Act, 765 ILCS 605/18(a)(7), and the parallel rule in the Common Interest Community Association Act, 765 ILCS 160/1-45(c), if an adopted budget or separate assessment would push total assessments for the year past 115% of the prior year's total, owners holding 20% of the votes can petition the board. For a condominium, that petition has to reach the board within 21 days of the board action; for a non-condo HOA under the CICAA, the window is 14 days. The board then has to call a meeting of owners within 30 days, and at that meeting the increase is rejected only if a majority of the total votes are cast against it. Increases up to 115% can be adopted by the board alone, and true emergency assessments for safety can skip the vote.

How the 115% trigger works

The number to remember is 115%. As long as the board keeps the year's total assessments within 115% of last year, it can adopt the budget on its own. Cross that line, and owners get a tool. Owners holding 20% of the votes can petition the board, within 21 days for a condominium or 14 days for a non-condo HOA, and force a meeting.

The meeting has to happen within 30 days of the petition, and the increase survives unless a majority of all the votes in the association are cast against it. That is a high bar, so the trigger is more of a brake than a veto. Emergency assessments for structural, life, or safety needs can be adopted without the vote, and large capital improvement assessments have their own approval thresholds.

What to check in the disclosure package

Read these together before you make an offer:

  • The last few years of budgets to see how fast assessments have risen.
  • Any increase over 115% and whether owners petitioned or accepted it.
  • Any special or capital assessment that has been approved or proposed.
  • The reserve fund status, which signals whether a big increase is coming.

Why this matters to your offer

Illinois does not cap your dues, so the 115% trigger and the reserve picture are what tell you where assessments are headed. A community that keeps hitting the trigger, or that is underfunded, is signaling future cost.

An HOA Notes brief reads the budgets, the reserve status, and the minutes together, flags a community heading toward a steep increase or a special assessment, and cites the page behind each finding.

What the statute says

765 ILCS 605/18(a)(7) and 765 ILCS 160/1-45(c) (115% assessment increase trigger). If a proposed budget or separate assessment would cause total assessments for the current fiscal year to exceed 115% of the prior fiscal year's assessments, owners holding 20% of the votes may petition within 21 days (CPA) or 14 days (CICAA) to call a membership meeting within 30 days; at that meeting, the budget or assessment is rejected if a majority of total votes are cast against it; additionally, the proposed annual budget must be distributed to all owners at least 25 days before board adoption (CPA) or 30 to 60 days before adoption (CICAA). The association may adopt budget increases up to 115% of the prior year by board action alone without triggering the member petition right; it may adopt emergency assessments for structural, life, or safety matters without any member vote; capital improvement or addition assessments require approval of two-thirds of total unit owner votes (CPA) or a simple majority (CICAA).

When you read the disclosure packet, watch for the board may increase assessments in any amount without owner notice or approval, special assessments may be levied at the board's sole discretion for any purpose, and bylaws denying owners the right to petition for a meeting after a large assessment increase. HOA Notes flags each of these against the statute and tells you which restrictions are actually enforceable.

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Illinois assessment increases: common questions

Is there a cap on HOA dues increases in Illinois?

No hard cap. But if assessments would exceed 115% of the prior year, owners holding 20% of the votes can petition for a meeting to reject the increase.

How long do owners have to petition?

Within 21 days of the board action for a condominium under the Condominium Property Act, or 14 days for a non-condo HOA under the Common Interest Community Association Act.

What does it take to reject the increase?

At the meeting, which the board must call within 30 days, a majority of all the votes in the association must be cast against the increase.

Can the board skip the vote for an emergency?

Yes. Emergency assessments for structural, life, or safety matters can be adopted without a member vote.

Sources, verified 2026-06-03

The statements about Illinois law on this page were verified against three independent sources on 2026-06-03. Section 18(a)(7) is part of the Illinois Condominium Property Act (765 ILCS 605); the parallel CICAA rule is 765 ILCS 160/1-45(c). Statutes change; confirm the current text before relying on it.

  1. 765 ILCS 605/18 (Illinois Condominium Property Act; budget and assessments), Illinois General Assembly. Verified 2026-06-03. ilga.gov
  2. Caps on special assessments and expenditures, Community Associations Institute, Illinois Chapter. Verified 2026-06-03. cai-illinois.org
  3. Illinois Statutes Chapter 765 Property 605/18, FindLaw. Verified 2026-06-03. codes.findlaw.com

About this page

Last reviewed 2026-06-03. This page is a general buyer guide and a description of the HOA Notes service. HOA Notes is not a law firm and this is not legal advice. Illinois statutes change; the citations above were verified against current sources on the date shown. Consult an Illinois real estate attorney before relying on any legal right described here.