What are Memorandum and Articles of Association in Singapore?

If you’ve been researching how to set up a company in Singapore, you may have come across the terms Memorandum of Association and Articles of Association, often abbreviated as M&AA. They appear in older company formation guides, legal templates, and sometimes in requests from foreign investors used to the terminology of other jurisdictions.

The short answer to whether you need them: no. Singapore replaced the M&AA with a single document called the Company Constitution in 2016. If you are incorporating today, you file a Company Constitution.

This guide explains what the M&AA were, how they worked, why they still appear in certain contexts, what documents you need to set up a company today, and how the Company Constitution fits into the broader Singapore framework.

What Is a Memorandum of Association?

The Memorandum of Association (MOA) was the foundational document of a Singapore company. It set out the basic facts about the company’s existence: who formed it, what it was for, and how its members were liable.

According to Section 22 of the Companies Act, the MOA typically includes:

• The name of the company
• The liability of its members (for example, limited by shares or by guarantee)
• The names, addresses, and occupations of the founding shareholders
• A declaration that the founders agreed to form the company and, where shares were involved, how many shares each founder would take up
• For companies limited by shares: the members’ commitment to contribute to debts in the event of liquidation

The MOA had to be signed by all founding shareholders, and a copy was kept at the company’s registered office.

Its purpose was to define the relationship between the company and the outside world: specifically, what the company was and what it was authorised to do.

What Are the Articles of Association?

The Articles of Association (AOA) was the internal rulebook of the company. Where the MOA dealt with the company's external identity, the AOA set out how the company would be governed and managed day-to-day.

According to Section 35 of the Companies Act, the AOA covered:

• The rights and powers of shareholders
• The duties and responsibilities of directors
• Rules for issuing shares and paying dividends
• Procedures for holding general meetings (including notice requirements and quorum)
• How decisions could be made, challenged, or overridden

Companies limited by guarantee or unlimited companies were required to file AOAs at incorporation. Private companies could either file their own customised articles or adopt a standard set of default rules known as "Table A," similar to the replaceable rules used in some other jurisdictions.

In practice, many founders used the standard Table A to save time and legal cost. Companies with investors, complex ownership structures, or specific governance requirements filed customised articles instead.

Differences Between MOA and AOA

The two documents had distinct functions. The table below maps the key differences.

The MOA defined what the company was and what it could do. The AOA defined how the company would actually run. Together, they were the constitutional documents of the business entity.

How the M&AA Worked Together

The MOA and AOA operated as a pair. Together, they formed the statutory constitutional documents of a company, binding the company and its members, and each member to every other member, under the Companies Act.

Because both were public documents filed with ACRA, they were accessible to anyone. For companies limited by shares that wished to keep certain matters private (funding commitments, exit rights, drag-along clauses, or dispute resolution procedures), members could enter into a shareholders' agreement in addition to the memorandum and articles.

This distinction between public constitutional documents and private shareholders' agreements still applies under the current Company Constitution framework.

What Replaced the M&AA: The Company Constitution

The Companies (Amendment) Act 2014 simplified company formation in Singapore by merging the MOA and AOA into a single document: the Company Constitution. The change took effect from January 2016.

All companies incorporated on or after that date file a Company Constitution instead of a separate M&AA. The Constitution fulfils both roles: it sets out the company’s key details and the rules by which it will be governed.

For most Singapore companies, the simplest option is to adopt ACRA’s Model Constitution, a standard-form document prepared by the Accounting and Corporate Regulatory Authority (ACRA) that is appropriate for the majority of straightforward private limited companies. You do not need a lawyer to use the Model Constitution.

Companies with more complex needs (investor rights, multiple share classes, specific governance requirements, or structures involving foreign shareholders or holding companies) use a customised Company Constitution drafted with legal advice.

M&AA vs Company Constitution

Purpose of a Company Constitution

The Company Constitution is the foundational document of every Singapore company. It serves several core purposes.

Defines the company's structure. The constitution sets out the company name, registered office, type of business entity, share capital, and class rights attached to shares. It tells anyone looking at the company exactly how it is organised.

Sets the internal management rules. It covers how directors are appointed, how the board meets, how votes are counted, and when shareholder approval is required for major decisions. This is what makes corporate governance possible.

Acts as a binding contract. Section 39(1) of the Companies Act treats the constitution as a contract between the company and its members, and among members themselves. Each shareholder can enforce its terms in court.

Provides legal certainty. Banks, regulators, auditors, and counterparties review the constitution to confirm who has signing authority, how decisions are made, and which actions need formal approval.

Replaces the older M&AA framework. Since 2016, the constitution has combined the public-facing identity (formerly MOA) with the internal rulebook (formerly AOA) into one document

A well-drafted constitution reduces internal conflict, prevents disputes about director authority, and gives investors confidence that the company is properly run.

Why M&AA Still Come Up Today

Even though M&AA are no longer filed in Singapore, the terms appear in a few specific contexts:

Foreign investors and due diligence. Investors from jurisdictions where the M&AA structure is still in use, such as the United Kingdom, India, Hong Kong, and many other common law countries, often ask for a company's "Memorandum and Articles of Association" as part of standard due diligence. In a Singapore context, the equivalent document to provide is the Company Constitution. If a foreign investor asks for your M&AA, you share your Company Constitution instead.

Older Singapore companies. Companies incorporated before January 2016 that still hold their original M&AA; those documents remain valid and continue to function as the Company Constitution.

Legal templates and older guides. Company formation templates, legal textbooks, and incorporation guides published before 2016 reference the M&AA throughout. If you are using older materials, the process they describe has been superseded. The current requirement is a Company Constitution, not separate MOA and AOA documents.

Cross-border structures. If your Singapore company has a parent company or subsidiaries in Malaysia, Indonesia, or other jurisdictions, counterparties may use M&AA terminology when referring to constitutional documents in general. In these cases, M&AA is being used as a generic term, not a Singapore-specific legal reference. The US equivalent is articles of incorporation, while the UK uses model articles of association.

Documents Needed for Company Formation in Singapore

To incorporate a private limited company in the Republic of Singapore today, you no longer need an MOA or AOA. You need a complete document pack ready for ACRA, including:

• Approved company name reserved through BizFile
• Company Constitution (Model or customised)
• Identification documents (passport or NRIC) for each director, shareholder, and beneficial owner
• Proof of residential address for each appointee (utility bill, bank statement, or similar)
• Consent to act forms signed by directors and the company secretary
• Registered office address in Singapore
• Description of business activities with the matching SSIC code
• Initial capital details (paid-up share capital, share certificate template)
• Particulars of beneficial owners for the Register of Registrable Controllers (RORC)
• Financial year-end declaration

For corporate shareholders, you also need certified copies of the parent company's incorporation documents, a certificate of good standing, and a board resolution authorising the investment. Foreign documents in another language must be translated into English by a certified translator.

For the full checklist, see our guide to company incorporation requirements.

Requirements for a Private Company in Singapore

A private company limited by shares is the most common type of business entity in Singapore. It comes with a clear set of requirements under the Companies Act.

Public companies limited by shares can offer their shares to the public and are subject to additional disclosure rules. Most foreign founders set up a private limited company because it offers limited liability, simple compliance, and full operational flexibility.

How to Register a Company in Singapore

The registration process for new companies runs through ACRA's BizFile portal and takes 1 to 3 business days for most applications. Here is the short version.

1. Reserve a company name through BizFile (SGD 15 fee). The name must be unique, free of restricted words, and not infringe trademarks.
2. Prepare the Company Constitution using the Model Constitution or a customised version drafted by a lawyer or corporate service provider.
3. Gather the required documents (IDs, proof of address, consents, share capital details).
4. Submit the incorporation application through BizFile (SGD 300 fee). A licensed filing agent does this for foreigners without SingPass.
5. Officers endorse their roles in BizFile within 60 days of approval.
6. Receive your UEN, e-Notification, and Certificate of Incorporation once endorsement is complete.

For a step-by-step walkthrough, see our full guide on how to start a business in Singapore.

How to Amend a Company Constitution

The constitution is not set in stone. Companies update theirs from time to time as the business evolves: bringing in new investors, changing share classes, adjusting director powers, or rewriting governance procedures.

Two types of resolutions can amend the constitution:

Ordinary resolution. Used for minor changes such as administrative updates. Requires more than 50% of votes cast by members entitled to vote.

Special resolution. Used for substantive changes such as altering share capital, changing the company name, or rewriting governance rules. Requires at least 75% of votes cast at a properly convened meeting of the company.

Step-by-step amendment process

1. Review the existing constitution. Confirm whether your specific change needs an ordinary resolution, a special resolution, or both.
2. Draft the proposed amendments. Set out the exact wording of the new provisions. Many companies engage a corporate secretary or lawyer for this step.
3. Send notice to all shareholders. For private companies, the notice period is at least 14 days. For public companies, it is 21 days. The notice must include the agenda and full text of the proposed resolution.
4. Hold the meeting (or pass a written resolution). Members vote on the resolution. A written resolution can replace the meeting if the constitution permits it and members sign within the required timeframe.
5. File the resolution with ACRA. Submit the passed resolution and the updated constitution through BizFile within 14 days.
6. Update internal records. Keep the amended constitution at the registered office. Notify all officers and shareholders.

Subject to the provisions of the Companies Act, some clauses can be "entrenched", which means they require a higher voting threshold or extra conditions before they can be changed. Common entrenched clauses cover protected shareholder rights, founder veto rights, or fixed board composition.

Role of the Company Secretary

The company secretary is the officer responsible for keeping a company compliant with the Companies Act and ACRA filing obligations. The role is mandatory for every private and public company in Singapore.

Key responsibilities

• Maintaining statutory registers for directors, shareholders, and registrable controllers
• Preparing and filing annual returns with ACRA
• Organising the annual general meeting and preparing minutes
• Drafting resolutions for board meetings and shareholder votes
• Updating ACRA on changes to directors, shareholders, share capital, registered office, or business activities
• Advising directors on their duties and obligations under written law
• Managing the Company Constitution and any amendments, ensuring compliance with the resolutions passed

Requirements for the role

• Must be a natural person ordinarily resident in Singapore
• Cannot be the sole director of the company
• For public companies, must hold professional qualifications (such as ICSA, CSIS, or a recognised legal background)
• Must be appointed within 6 months of incorporation
• Must consent in writing to the appointment

Most foreign founders use a corporate service provider to fill this role. The annual fee usually runs from SGD 300 to SGD 1,200, depending on the scope of services and the size of the company.

What This Means for Your Company

If you are setting up a new Singapore company: You do not need to prepare a Memorandum of Association or Articles of Association. File a Company Constitution at the time of incorporation via ACRA. Most founders use the Model Constitution. If your company has investors or complex governance needs, get a customised version prepared.

If your company was incorporated before 2016: Your existing M&AA are treated as its constitution and can be changed from time to time in the same way as a company constitution. No action is required unless you want to modernise the wording.

If a foreign investor or counterparty asks for your M&AA: Provide your Company Constitution. It is the equivalent document under current Singapore law. You can explain that Singapore replaced the M&AA with the Company Constitution in 2016, with the substance unchanged.

If you need help preparing or updating a Company Constitution: At Statrys, we handle Singapore company registrations end-to-end, including the Company Constitution, as part of our incorporation service.