A Singapore company constitution is the legal document that sets out your company’s internal rules, powers, and decision‑making processes. It is filed with ACRA when you incorporate and then governs how shareholders and directors must act.
For most founders, using the standard ACRA model constitution is enough to incorporate quickly. You only need a customised constitution when you have specific investor terms, unusual governance needs, or want to avoid future disputes by spelling out detailed rules.
What is a company constitution in Singapore?
A company constitution in Singapore is a binding legal document that defines the company’s structure, powers, and internal rules, and it forms a contract between the company, its shareholders, and its directors.
In Singapore, the constitution replaces the old “memorandum and articles of association” (often called “M&A”). The modern constitution combines both into a single document.
A Singapore company constitution typically:
States the company’s name, type, and liability structure
Sets out the company’s objects or business purposes (if any)
Defines the rights and obligations of shareholders
Sets rules for appointing and removing directors
Describes how board and shareholder meetings are called and run
Covers share issues, transfers, and dividends
Once filed with ACRA, the constitution becomes part of the company’s legal framework and must be followed unless it is properly amended.
Is a company constitution mandatory in Singapore?
A company constitution is mandatory for Singapore companies at the point of incorporation.
When you incorporate a private limited company with ACRA, you must either:
Adopt the standard ACRA model constitution; or
File your own customised constitution.
Without a constitution, ACRA will not complete the incorporation.
For most small and early‑stage startups, the ACRA model constitution is sufficient to start operating.
Company constitution vs memorandum and articles in Singapore
The old “memorandum and articles of association” in Singapore have effectively been replaced by the single company constitution, which now serves the same combined function.
Historically:
The memorandum of association set out basic company details and objects.
The articles of association set out internal rules and procedures.
Today, the constitution:
Combines both into one document
Is filed with ACRA at incorporation or upon conversion
Functions as a contract between the company, shareholders, and directors
If you see older documents or templates referring to “memorandum and articles” or “M&A”, they are referring to what is now generally called the company constitution.
What to include in a Singapore company constitution
Answer first: A Singapore company constitution should clearly cover the company’s identity, share structure, shareholder rights, director powers, meeting procedures, and how the constitution itself can be amended.
Below are the typical sections and what they mean in practice.
1. Company name, type, and liability
The constitution should state:
Company name
Whether it is a private or public company
Whether it is limited by shares or by guarantee
For most founders, the relevant structure is a private company limited by shares.
This section clarifies that shareholders’ liability is limited to the amount unpaid on their shares.
2. Registered office and place of business
The constitution usually states that the company will have a registered office in Singapore.
This is the official address for:
Receiving legal notices
Receiving government correspondence
The exact address can be maintained and updated through ACRA filings rather than by amending the constitution each time.
3. Objects or business activities (if any)
Modern constitutions often allow the company to engage in any lawful business, rather than listing narrow objects.
Founders usually prefer broad objects so the company can pivot or expand into related activities without needing to amend the constitution.
If you include specific objects, you may:
Need shareholder approval to change them later
Create arguments about whether a particular activity is allowed
4. Share capital and share classes
The constitution should describe the company’s share capital framework, including:
Types of shares (ordinary, preference, non‑voting, etc.)
Rights attached to each class (voting, dividends, liquidation preference)
Whether shares have par value (modern Singapore companies typically do not)
For a simple founder‑only company, you may only have ordinary shares with equal rights.
If you expect investors, you may want the constitution to allow for different share classes, such as preference shares, and spell out their rights clearly.
5. Shareholder rights and obligations
A clear constitution should explain:
Voting rights per share
Rights to dividends
Rights on winding up or sale of the company
How new shares are offered (e.g. pre‑emption rights)
Pre‑emption rights (rights of first refusal on new share issues) help protect existing shareholders from dilution without being offered a chance to participate.
6. Share transfers and restrictions
The constitution should set out how shares can be transferred, including:
Whether board approval is required for transfers
Any restrictions on transfers to third parties
Any rights of first refusal or tag‑along / drag‑along provisions (if included)
Private limited companies in Singapore typically restrict share transfers to keep control within a known group of shareholders.
For early‑stage startups, clear transfer rules help avoid disputes when a founder leaves or when a new investor comes in.
7. Directors’ powers and duties
The constitution should describe:
Minimum and maximum number of directors
Eligibility and disqualification criteria
How directors are appointed and removed
The general powers of the board to manage the company
By default, directors collectively manage the company’s business and may exercise all powers not reserved to shareholders by law or by the constitution.
You can also:
Require certain decisions to be approved by shareholders
Require a higher threshold for specific board decisions (e.g. issuing new shares, major asset sales)
8. Board meetings and decision‑making
The constitution should cover how the board makes decisions, including:
How board meetings are called and who can call them
Notice periods for meetings
Quorum requirements (minimum number of directors present)
Voting rules and casting vote (if any)
Whether written resolutions are allowed
Clear board procedures reduce the risk of decisions being challenged as invalid.
9. Shareholder meetings and resolutions
The constitution should also set out how shareholders make decisions, including:
How general meetings are called
Who can call a meeting
Notice periods and contents of notices
Quorum requirements
Voting methods (show of hands, poll)
When ordinary vs special resolutions are required
Certain key decisions, such as changing the constitution, typically require a special resolution (a higher approval threshold than an ordinary resolution).
10. Dividends and distributions
The constitution should explain:
Who decides on dividends (usually the board, sometimes with shareholder approval)
How dividends are declared and paid
Treatment of different share classes (if any)
Singapore companies may only pay dividends out of available profits, subject to applicable law.
11. Accounts, records, and audits
The constitution usually includes general provisions on:
Keeping proper accounting records
Preparing financial statements
Appointing auditors (if required)
The detailed requirements come from Singapore company law and accounting standards, but the constitution can reinforce responsibilities and procedures.
12. Company seal (if used)
Some constitutions still include provisions about a common seal.
Many Singapore private limited companies no longer use a physical company seal in practice, but if your constitution mentions one, it should state:
When the seal may be used
Who must witness or sign when it is affixed
13. Indemnity and limitation of liability
The constitution may include clauses:
Indemnifying directors and officers against certain liabilities incurred in good faith
Clarifying that indemnity cannot extend to fines or penalties where prohibited by law
These clauses must be consistent with Singapore company law.
14. Amendment of the constitution
The constitution should state how it can be amended.
In practice, amendments usually require:
A shareholder special resolution; and
Lodging the updated constitution with ACRA.
This section is critical because it defines how flexible or rigid your governance framework is.
ACRA constitution requirements in Singapore
Answer first: ACRA requires every Singapore company to have a constitution that complies with the Companies Act and is lodged at incorporation or when amended.
In practice, this means:
You must adopt either the ACRA model constitution or a customised one
The constitution must be consistent with Singapore company law
Any changes to the constitution must be properly approved and filed with ACRA
ACRA does not typically “approve” your wording line by line, but if your constitution conflicts with mandatory provisions of the Companies Act, those conflicting parts may be invalid or unenforceable.
For most founders, using the ACRA model constitution ensures basic compliance and avoids drafting errors.
Using the ACRA model company constitution vs a customised constitution
Answer first: Most early‑stage Singapore private limited companies can safely start with the ACRA model constitution, and only move to a customised constitution when investors or more complex governance needs arise.
When the ACRA model constitution is usually enough
The standard ACRA model constitution is usually suitable if:
You have a small number of founders
Everyone holds ordinary shares with similar rights
You do not have institutional investors yet
You want to incorporate quickly and cheaply
Benefits of using the model constitution include:
Faster incorporation
Lower legal drafting costs
Familiarity to service providers and banks
When you should consider a customised constitution
A customised company constitution in Singapore is more appropriate when:
You are bringing in venture capital or private equity investors
You need multiple share classes with different rights
You want specific veto rights or reserved matters
You have complex founder arrangements (e.g. different vesting, exit rights)
You are planning for an ESOP or employee share scheme with particular terms
A customised constitution can:
Align governance with your shareholders’ agreement
Reduce ambiguity in key decisions
Provide clearer rules for exits, transfers, and deadlock situations
Customisation should be done with professional advice to ensure consistency with Singapore law and with any shareholders’ agreement.
Company constitution vs shareholders’ agreement
Answer first: The company constitution is a public, statutory document filed with ACRA, while a shareholders’ agreement is a private contract between shareholders (and often the company) that can add more detailed or commercial terms.
Key differences:
Visibility: The constitution is lodged with ACRA; a shareholders’ agreement is usually private.
Scope: The constitution focuses on formal governance rules; a shareholders’ agreement can cover commercial arrangements, founder commitments, and detailed investor protections.
Binding parties: The constitution binds the company, shareholders, and directors as a matter of company law; a shareholders’ agreement binds only its parties under contract law.
Common practice for startups:
Use the constitution for core governance rules and share rights.
Use a shareholders’ agreement for:
Founder vesting
Detailed exit terms
Information rights
Non‑compete / non‑solicit obligations
Custom investor protections
Both documents should be consistent. If they conflict, it can create uncertainty and disputes.
When you need to update your Singapore company constitution
Answer first: You should update your Singapore company constitution when your share structure, investor base, or governance needs change in a way that is not properly covered by your existing constitution.
Common triggers for updating the constitution include:
1. Bringing in new investors
You may need amendments when:
Issuing preference shares or other new share classes
Granting specific investor rights (e.g. vetoes, anti‑dilution)
Aligning with a new shareholders’ agreement
Investors often require a revised constitution as a condition of their investment.
2. Creating or revising share classes
If you want to:
Introduce non‑voting shares
Create different dividend rights
Implement liquidation preferences
you usually need to amend the constitution to define these rights clearly.
3. Changing governance or decision‑making rules
You may want to update the constitution if you change:
Board composition or minimum/maximum number of directors
Quorum requirements for board or shareholder meetings
Which decisions require special or unanimous approval
These changes help reflect the company’s growth and risk profile.
4. Aligning with current law or best practice
Older constitutions may:
Refer to outdated provisions
Use structures that are no longer common
Updating the constitution can:
Reduce legal uncertainty
Make it easier for banks, investors, and counterparties to understand your structure
5. Resolving recurring disputes or ambiguities
If you repeatedly encounter questions such as:
Who has the casting vote?
Can a director be removed in this situation?
How exactly do we handle a deadlock?
then your constitution may be too vague or misaligned with how you actually operate.
Clarifying the rules through an amendment can prevent future disputes.
How to change your company constitution in Singapore (high‑level overview)
Answer first: To change a Singapore company constitution, shareholders must pass the required resolution (typically a special resolution) and the company must lodge the updated constitution with ACRA.
In broad terms, the process usually involves:
Drafting the amendments or new constitution
Prepare either specific amendment clauses or a fully restated constitution.
Board approval to convene a meeting
Directors approve the proposed changes in principle and call a shareholders’ meeting or propose a written resolution.
Shareholder approval
Shareholders pass the required resolution (often a special resolution) in accordance with the existing constitution and Singapore law.
Lodging with ACRA
File the necessary documents and the updated constitution with ACRA within the prescribed timeframe.
Updating internal records
Circulate the updated constitution to directors and shareholders.
Ensure corporate secretarial records and any shareholders’ agreement are aligned.
Because the constitution is a core legal document, most companies work with a corporate services provider or lawyer when making significant changes.
Practical tips for founders drafting or choosing a constitution
Keep it simple at incorporation
For most first‑time founders:
Start with the ACRA model constitution unless you already have investors with specific requirements.
Avoid over‑engineering governance before you know how the business will evolve.
Think ahead about investors
If you expect to raise capital soon:
Be prepared that investors may require a new constitution.
Understand that your initial constitution is not “final” and can be updated.
Align with your shareholders’ agreement
If you have or plan to have a shareholders’ agreement:
Ensure the constitution and the agreement are consistent on key points such as share classes, voting rights, and reserved matters.
Decide which document will contain which types of terms.
Document how you actually operate
Your constitution should:
Reflect your real decision‑making processes
Be understandable to all founders and key shareholders
If the document is too complex to follow, it is more likely to be breached or ignored.
Use professional templates carefully
If you use a “company constitution Singapore template” from a service provider:
Confirm it is designed for Singapore law
Check that it matches your company type (e.g. private company limited by shares)
Avoid mixing templates from different jurisdictions
When in doubt, get professional review before filing.
Frequently Asked Questions
What is a company constitution in Singapore?
A company constitution in Singapore is the legal document that sets out a company’s structure, powers, and internal rules, and it binds the company, its shareholders, and its directors. It replaces the old memorandum and articles of association and must be filed with ACRA.
Is a company constitution mandatory for Singapore companies?
Yes, a company constitution is mandatory for Singapore companies. You must adopt either the ACRA model constitution or a customised constitution when incorporating with ACRA.
Can I use a Singapore company constitution template to incorporate?
Yes, you can use a Singapore company constitution template, and most founders simply adopt the ACRA model constitution provided during incorporation. If you use any other template, ensure it is suitable for Singapore law and your specific company type.
Do I still need a memorandum and articles of association in Singapore?
No, you do not need a separate memorandum and articles of association in Singapore for new companies. The modern company constitution combines the functions of the old memorandum and articles into a single document.
When should I update my company constitution in Singapore?
You should update your company constitution in Singapore when your share structure, investor arrangements, or governance needs change in a way that is not covered by your existing constitution. Common triggers include new investors, new share classes, or revised decision‑making rules.
Who can change the company constitution?
The company constitution can generally be changed only by the shareholders passing the required resolution, typically a special resolution. The updated constitution must then be lodged with ACRA.
Is the company constitution the same as a shareholders’ agreement?
No, the company constitution is not the same as a shareholders’ agreement. The constitution is a public, statutory document filed with ACRA, while a shareholders’ agreement is a private contract that can contain more detailed commercial and investor terms.
Do I need a lawyer to draft or amend my company constitution?
You are not legally required to use a lawyer to draft or amend your company constitution, but professional advice is strongly recommended for customised or complex constitutions. Errors or inconsistencies can create governance problems and disputes later.
Where can I get a copy of my company’s constitution?
You can usually obtain a copy of your company’s constitution from your corporate secretary or by purchasing the relevant records from ACRA. It is good practice for all directors and shareholders to keep a copy.
How IncSG can help
If you are preparing to incorporate and are unsure whether to use the ACRA model constitution or a customised one, IncSG can help you understand the practical implications for your specific situation.
We can walk you through:
What the standard constitution does and does not cover
When it makes sense to customise your constitution
How your constitution should align with any shareholders’ agreement
Having a clear, appropriate constitution at the start makes incorporation smoother and reduces the risk of shareholder or director disputes later. When you are ready, speak with a professional advisor or corporate services provider to ensure your constitution supports how you want your company to be run.
