Family constitution: the document that sets the family rules
The essentials in 30 seconds
- A family constitution is the written document that sets the rules a family follows for decisions, roles and membership.
- Most constitutions cover 6 areas, from purpose and values to the way the text changes.
- It sits beside wills, trusts and company documents, and qualified counsel reviews the final text.
- A review every 3 to 5 years keeps the document current as of October 2026.
- EQOS Asia offers a free 30-minute pre-diagnostic for families in Singapore, ASEAN and Hong Kong.
A family constitution is a written document in which a family sets the rules for how it makes decisions about shared wealth, roles and membership. This page explains what it contains and how families use it as of October 2026, as one tool of family governance. Two further pages cover writing it and updating it. This page is general information, not legal, tax or investment advice.
On this page
Compare the EQOS Asia offers and request a 30-minute pre-diagnostic.
What is a family constitution, and what does it cover?
A family constitution, sometimes called a family charter or family protocol, is a written agreement about how the family works together. It covers who belongs to the family circle, how decisions are taken, what the family owns jointly and how members raise concerns. Its tone is practical: it describes behavior and procedure rather than legal ownership alone. A reader finishes it knowing the family’s purpose, the people involved and the next step when a question arises.
The document serves the whole family, so its language is plain. A teenager and a grandparent should both follow it. Families with members who read different languages at home can keep one version as the reference text and add a translation for everyone else. Plain words, short sentences and concrete examples help every member apply the rules without a lawyer in the room.
Which problems does a family constitution solve for shared wealth?
Unspoken assumptions leave each decision open to a fresh debate about who has a say. A written procedure answers that question in advance, so the conversation moves from who decides to what is best for the family. The family gains speed, and each member gains clarity about the part they play. Younger members gain a clear picture of how to earn a larger voice over time.
The constitution also protects continuity. When a founder steps back, the rules remain, and new members find them waiting. The constitution holds the memory of why the family chose its approach, which helps later generations apply the rules in the spirit in which the family wrote them.
What are the 6 areas of a family constitution?
Most constitutions cover 6 areas: purpose and values, membership and roles, decision making and voting, ownership and investment principles, conduct and conflict handling, and the process to amend the document. Families add areas that suit them, such as philanthropy, employment of relatives in the family business or use of shared property.
Each area states a principle and a procedure. The principle explains the intent, and the procedure explains the steps, the deadlines and the person responsible. The guide on how to write a family constitution gives the full list of sections to include and the order that readers find easiest to follow.
How does a family constitution relate to wills, trusts and company documents?
A constitution sits beside legal instruments and does not replace them. Wills, trusts, shareholder agreements and company articles fix ownership and carry legal force. The constitution explains the family’s intent behind them and sets the process the family follows when those documents leave room for judgment.
Whether any clause binds the family legally depends on its wording and on the law that applies. Many families treat the constitution as a moral and procedural agreement and ask their lawyer to align the legal documents with it. Qualified counsel in each jurisdiction reviews the final text before the family signs.
How does a family adopt a family constitution together?
Adoption works best as a shared process. A small drafting group collects views from each branch, writes a first version and circulates it. Members comment, the group revises and the family approves the final text at an assembly. People support what they helped to write, so participation matters as much as the wording.
A signing moment gives the document weight. Many families hold a short ceremony where each adult member signs, and a copy goes to each household. Younger members receive an age-appropriate summary, and they sign their own copy when they reach the age that the constitution sets for full membership.
How often should a family review its constitution?
A constitution lives with the family. A review every 3 to 5 years suits many families, and events such as a marriage, a death, a business sale or a move to a new country can trigger an earlier one. The page on family constitution review explains the process, the vote needed and the way to record changes.
Amendments follow the procedure that the document itself defines, often a supermajority at the assembly. This protects stability and still allows change. A dated change log at the end of the document lets any member see what moved and why. Versions are numbered, so the family always knows which text is current.
Where can a family start with a family constitution today?
Start with a one-page draft of purpose, values and three decision rules. Share it at the next family meeting, collect comments for 30 days and refine it. A short, living draft builds the habit of writing things down, and a fuller document grows from it over the following months. Each new section answers a real question that came up in family life.
EQOS Asia supports decision makers in Singapore, ASEAN and Hong Kong with structured analysis of a family decision. A free 30-minute pre-diagnostic is the first step (EQOS Asia private page, 2026), and the pricing page lists the formats from one question to a full mapping. This page is general information, not legal, tax or investment advice.
See also in this guide
Frequently asked questions
What is the difference between a family constitution and a family charter?
The two terms describe the same kind of document: a written agreement about how a family decides, who belongs and how the rules change. Some families prefer charter, protocol or code. The label matters less than the content, which should state principles, procedures and the way the family amends them.
Who should help write a family constitution?
A drafting group of 3 to 5 members from different branches and generations usually leads the work. An independent facilitator keeps the discussion balanced, and a lawyer checks that the text fits the legal documents of the family. The whole family then reviews and approves the draft together.
How long should a family constitution be?
A constitution of 5 to 15 pages is a practical target. A short text gets read and applied. Place principles first, procedures second and annexes, such as forms or contact lists, at the end, so the main text stays compact and each member can find the rule they need quickly.
Does a family constitution need a family office?
A family that holds a business, property or an investment portfolio together can use a constitution from day one. When the family later creates an office, the constitution supplies the principles that the board and the investment committee follow, and the office team applies them in daily work.
Test your knowledge
1. What does a family constitution describe?
- Only share prices
- How the family decides and who belongs
- The weather forecast
Show the answer
How the family decides and who belongs.
2. How many core areas do most constitutions cover?
- 6
- 2
- 40
Show the answer
6.
3. How does a constitution relate to wills and trusts?
- It replaces them
- It cancels them
- It sits beside them
Show the answer
It sits beside them.
4. Who approves the final text in the adoption process?
- The family at an assembly
- A bank branch
- A tax office
Show the answer
The family at an assembly.
5. Which review interval suits many families?
- Every week
- Every 3 to 5 years
- Only at a death
Show the answer
Every 3 to 5 years.
About the author
Stéphane Jambu
President, EQOS Forecast Asia
Stéphane Jambu leads EQOS Forecast Asia and works as a consultant in e-commerce, search visibility, and AI. LinkedIn profile
Sources: EQOS Asia private page (eqos-asia.com/private.html), EQOS Asia pricing page (eqos-asia.com/pricing.html), consulted on 23 October 2026. Page updated on 23 October 2026.