Australia: Governing Laws/Bylaw Requirements

A company’s internal management may be governed by:

  • provisions of the Corporations Act 2001 that apply to the company - known as replaceable rules, or
  • a constitution, or
  • a combination of both.


The constitution is a contract between:

  • the company and each member
  • the company and each director
  • the company and the company secretary, and
  • a member and each other member.

A company can adopt a constitution before or after registration. If it is adopted before registration, each member must agree (in writing) to the terms of the constitution. If a constitution is adopted after registration, the company must pass a special resolution to adopt the constitution. A company can change or repeal its constitution by passing a special resolution. A special resolution needs at least 28 days notice for publicly listed companies and 21 days notice for other company types. For the resolution to pass, at least 75% of the votes cast must be in favour. A company must provide a current copy of the constitution to any member who requests it within seven days. If a fee is charged, the constitution must be provided within seven days of payment.

Replaceable rules

Replaceable rules are in the Corporations Act and are a basic set of rules for managing your company. If a company doesn’t want to have a constitution, they can use the replaceable rules instead.

Replaceable rules do not apply to a proprietary company if the same person is the sole director as well as the sole shareholder. Replaceable rules outlined details the rules outlined in the Corporations Act and which section they’re in. The content in each of those sections applies as the replaceable rule. If a company wants to change or remove a replaceable rule, they will need to have a constitution that outlines the changes.


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