Table of Contents
- What Changed for 18-Year-Olds Under UAE Law?
- Can an 18-Year-Old Sign a Contract in the UAE?
- Can an 18-Year-Old Sign a Power of Attorney in the UAE?
- Does Turning 18 Automatically Mean a POA Will Be Notarised?
- Can an 18-Year-Old Sign Company Documents in the UAE?
- What About a Memorandum of Association or Shareholder Document?
- Can an 18-Year-Old Act as an Agent Under a POA?
- Does an 18-Year-Old Still Need Parental or Guardian Consent?
- What If the Document Was Signed Before 1 June 2026?
- What Should an 18-Year-Old Check Before Signing?
- Frequently Asked Questions
- Conclusion
Yes, in many cases an 18-year-old can now sign contracts and manage their own civil affairs in the UAE. A major change to UAE law took effect on 1 June 2026, reducing the civil age of majority from the previous higher threshold to 18 Gregorian years.
That does not mean every document can automatically be signed simply because someone has turned 18. A Power of Attorney, company document, or notarised instrument may involve additional questions about authority, the purpose of the document, the capacity in which the person is signing, and the requirements of the authority receiving it.
So, if you are asking whether an 18-year-old can sign a POA, contract, or company document in the UAE, the answer depends not only on age but also on what is being signed and in what capacity.
What Changed for 18-Year-Olds Under UAE Law?
Federal Decree-Law No. 25 of 2025 promulgating the new Civil Transactions Law came into force on 1 June 2026.
Article 84 provides that a person who has reached the age of majority, has full mental capacity and is not subject to interdiction has full legal capacity to exercise civil rights. The same Article now defines the age of majority as completion of 18 Gregorian years.
This is significant because the previous Civil Transactions Law applied a higher age threshold. The 2026 reform means that an individual who has completed 18 Gregorian years will generally no longer need a parent or guardian merely because of age when exercising ordinary civil rights.
Age, however, is only one part of legal capacity. A restriction imposed by law, a court order, or a special legal regime can still affect a person’s ability to carry out a particular transaction.
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Can an 18-Year-Old Sign a Contract in the UAE?
Generally, yes.
An individual who has completed 18 Gregorian years, has full mental capacity and is not legally restricted will generally have the civil capacity to enter into contracts in their own name.
This may include ordinary agreements involving matters such as services, purchases, rentals, or other private transactions, subject to any special law governing the particular contract.
Legal capacity should not be confused with whether the contract itself is legally effective. Even where both parties are adults, an agreement can still raise problems if:
- its purpose is unlawful;
- mandatory legal requirements have not been followed;
- the person signing does not actually have authority to bind another person or company;
- a particular form of notarisation, registration, or approval is required; or
- the terms do not accurately reflect the transaction.
Where the issue concerns the wording, obligations, or enforceability of an agreement rather than age alone, contract drafting and review may be relevant before the document is signed.
Can an 18-Year-Old Sign a Power of Attorney in the UAE?
The civil-capacity position changed significantly from 1 June 2026 because an individual generally reaches the age of majority at 18 Gregorian years.
However, a Power of Attorney involves more than simply putting a signature on a document.
A Power of Attorney allows one person, known as the principal, to authorise another person to act within the powers stated in the document. Those powers may concern property, business affairs, litigation, vehicles, banking, company matters, or another specified transaction.
The person granting the POA must therefore have legal capacity and must also be entitled to grant the particular authority contained in it.
For example, an 18-year-old cannot use a POA to delegate a corporate power that they do not personally possess or to authorise an act that requires some separate approval.
The scope of authority granted through a Power of Attorney should therefore be checked against the transaction for which the document will actually be used.
Does Turning 18 Automatically Mean a POA Will Be Notarised?
Not necessarily.
Legal capacity under the Civil Transactions Law and acceptance of a document through a particular notarial or government procedure are related, but they are not always the same question.
A notary may need to verify:
- the identity of the person signing;
- their legal capacity;
- the capacity in which they are acting;
- their authority to execute the document;
- their understanding and consent; and
- any supporting documents required for the particular transaction.
There is also a practical point following the 2026 age-of-majority reform. Some published service information may not yet reflect the new civil-capacity threshold consistently. For that reason, an individual aged 18 to 20 who needs a notarised POA should confirm the current requirements of the particular notary channel before relying only on the general age-of-majority rule.
If the document must be notarised in Dubai, the applicable private notary requirements should therefore be checked against the document, the signer’s capacity, and the intended use.
For readers who already know that a POA is required but are unsure about the procedural steps, our separate guide on POA notarisation and private notary services explains the process in more detail.
Can an 18-Year-Old Sign Company Documents in the UAE?
Possibly, but age is not the only issue.
The UAE Commercial Transactions Law provides that a person who has attained 18 calendar years and is free from a legal impediment is competent to engage in trade.
That does not mean any 18-year-old can automatically sign documents on behalf of a company.
When a person signs for a company, the more important question is often:
What gives that individual authority to bind the company?
Authority may arise from documents such as:
- the company’s Memorandum of Association or Articles of Association;
- the person’s appointment as manager or authorised representative;
- a shareholder or board resolution;
- a corporate Power of Attorney;
- the company’s constitutional documents; or
- another authority accepted by the relevant licensing or registration body.
The Commercial Companies Law also recognises the powers of company managers subject to the company’s constitutional documents and the terms of their appointment.
As a result, a person may be old enough to enter into a contract personally but still lack authority to sign the same document on behalf of a company.
Questions about the person’s role, corporate approvals, and limits on signing authority may therefore need to be examined as part of the company’s corporate governance and signing arrangements.
What About a Memorandum of Association or Shareholder Document?
Company documents require particular care because the individual may be signing in more than one capacity.
For example, a person might sign:
- personally as a shareholder;
- as a company manager;
- as an authorised representative of another shareholder;
- under a corporate POA; or
- on behalf of another legal entity.
The fact that the signer is 18 may establish personal legal capacity, but it does not prove each of those other forms of authority.
Where the document is a Memorandum of Association or an amendment to an existing MOA, the relevant licensing authority and notarial requirements must also be satisfied. Our separate article on Memorandum of Association notarisation in Dubai covers that procedure in more detail.
Can an 18-Year-Old Act as an Agent Under a POA?
The new age-of-majority rule means an 18-year-old may generally possess full civil capacity, provided the other legal-capacity conditions are satisfied.
However, whether a particular authority, bank, court, land department, licensing authority, or other institution will accept that person as an agent for a specific transaction may depend on the nature of the power granted and any special rules governing that transaction.
The POA itself must also contain sufficient authority for the agent to perform the intended act.
For example, authority to manage general administrative affairs should not automatically be treated as authority to sell property, transfer company ownership, or exercise another specific power if the relevant transaction requires express authorisation.
Does an 18-Year-Old Still Need Parental or Guardian Consent?
Under the current Civil Transactions Law, reaching 18 Gregorian years generally brings full civil capacity where the person has full mental capacity and is not interdicted.
This means the previous assumption that someone aged 18, 19 or 20 automatically needs a parent or guardian for ordinary civil transactions is no longer consistent with the current general age-of-majority rule.
However, guardian involvement may still arise where:
- the person is legally subject to guardianship, trusteeship, or curatorship;
- a court has restricted the person’s capacity;
- the transaction is governed by a special legal rule; or
- a particular authority requires additional evidence concerning capacity or representation.
What If the Document Was Signed Before 1 June 2026?
The date matters.
The new Civil Transactions Law came into force on 1 June 2026. Its general rule is that legislation applies from its effective date and does not retrospectively change preceding facts and acts unless otherwise provided.
At the same time, the new Law specifically provides that its legal-capacity provisions apply to persons who meet the conditions stated in those provisions.
This means someone who is 18 today should not automatically assume that the new age threshold retrospectively validates every document they may have signed before 1 June 2026.
If the validity of an older POA, contract, property transaction, or company document is in question, the date of execution and the law applicable at that time should be reviewed separately.
What Should an 18-Year-Old Check Before Signing?
Before signing a POA, contract, or company document, check five things:
- Your personal capacity: Have you completed 18 Gregorian years, and are there any legal restrictions affecting your capacity?
- The capacity in which you are signing: Are you signing for yourself, as an agent, as a company manager, or for another person?
- Your actual authority: If you are representing someone else or a company, what document gives you that authority?
- Formal requirements: Does the document require notarisation, registration, witnessing, Arabic translation, or approval from another authority?
- The intended transaction: Does the wording of the document expressly cover the act you intend to carry out?
These checks are particularly important for POAs and company documents because legal capacity and signing authority are separate issues.
Frequently Asked Questions
Is the legal age for signing contracts now 18 in the UAE?
Under the Civil Transactions Law effective from 1 June 2026, a person reaches the age of majority upon completing 18 Gregorian years. Full civil capacity also requires full mental capacity and the absence of a legal restriction such as interdiction.
Can an 18-year-old sign a Power of Attorney without their parents?
Age alone will generally no longer require parental involvement once the person has completed 18 Gregorian years and has full legal capacity. However, the particular POA and notarial procedure may involve additional eligibility and authority requirements.
Can an 18-year-old sign documents for a company?
Only if the individual also has authority to sign for that company. Personal legal capacity at 18 does not itself make someone an authorised corporate signatory.
Can an 18-year-old start or conduct business in the UAE?
The Commercial Transactions Law provides that a person who has attained 18 calendar years and is free from a legal impediment is competent to engage in trade. Licensing, company, and activity-specific requirements still apply.
Why might a notary reject a document even if the signer is 18?
A notary must consider more than age. Identity, legal capacity, signing authority, supporting documents, the contents of the instrument, and the rules applying to the particular transaction may all affect acceptance.
Does the new age rule validate documents signed before June 2026?
Not automatically. The validity of an earlier transaction can depend on the law applicable when it was executed and the Civil Transactions Law’s transitional rules.
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Conclusion
Since 1 June 2026, completing 18 Gregorian years generally gives an individual full civil capacity in the UAE, provided the person has full mental capacity and is not legally restricted. That makes it possible for many 18-year-olds to enter contracts and manage their own legal affairs without relying solely on parental or guardian consent.
A POA or company document still requires a second question: does the person have the authority and meet the procedural requirements needed for that particular transaction?
If there is uncertainty over capacity, corporate authority, POA wording, or notarisation requirements, HHS Lawyers can review the proposed document and the capacity in which it will be signed before it is submitted to the relevant authority.
