Ontario Marriage Act

A plain-language guide to the law that governs marriages in Ontario — R.S.O. 1990, c. M.3

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Official e-Laws Source ServiceOntario Guide Marriage Act, R.S.O. 1990, c. M.3
Consolidation: December 11, 2025 to the e-Laws currency date
Last amended: 2025, c. 20
Verified: October 1, 2026

Overview of the Act

The Marriage Act is the primary provincial legislation in Ontario governing the legal solemnization of marriage. Its fundamental purpose is to establish a rigorous regulatory framework to ensure that marriages performed in the province are legally recognized, orderly, and entered into voluntarily by consenting individuals who possess the legal capacity to marry. The Act serves as a safeguard for both the parties to a marriage and the public, providing clear rules regarding eligibility, the requirements for a valid marriage licence (or the alternative publication of banns), and the specific qualifications and responsibilities of those authorized to solemnize a marriage. Key pillars of the Act include requirements for legal capacity: individuals must be at least 18 years of age to marry without consent, with specific provisions for those aged 16–17 to marry with parental or guardian consent. The Act strictly prohibits marriage between persons who are already married (unless the previous marriage has been legally dissolved, annulled, or terminated by death) and those who lack the mental capacity to consent. It also outlines the prohibited degrees of relationship, incorporating federal standards that prevent marriages between closely related persons. Solemnization is tightly controlled. Only specific categories of individuals—such as registered religious officials, civil servants (judges, justices of the peace, or designated municipal clerks), and, as recently amended, Members of the Provincial Assembly—may legally perform a marriage ceremony. The Act mandates that every marriage must be solemnized under the authority of a valid marriage licence or the publication of banns. It sets out strict procedural requirements, including the mandatory physical presence of the couple, two witnesses, and the officiant, and mandates specific declarations to be made during the ceremony to ensure the parties intend to enter the union. Protection is provided for good-faith errors; under section 31, if a marriage was performed in good faith by someone who believed they were authorized, and the couple has cohabited, the marriage may be deemed valid despite certain procedural irregularities. The Act also establishes the marriage register, governing how marriage records are maintained and submitted to the Registrar General to ensure vital statistics are accurately tracked. Finally, the Act provides for penalties against those who violate its provisions, including those who perform marriages without authorization or who knowingly issue licences to ineligible applicants, thereby upholding the integrity of the institution of marriage in Ontario.

Getting Married in Ontario — ServiceOntario Guide

To get married in Ontario, individuals must be at least 18 years old, or 16-17 with parental consent. Couples must obtain a marriage licence, which is valid for 3 months, by applying at a municipal office with two pieces of government-issued ID. Marriages can be performed by registered religious officiants or civil officiants, such as judges, justices of the peace, or authorized municipal clerks. If previously married in Canada, a divorce certificate is required; if divorced outside Canada, authorization from the Registrar General is necessary, which involves a legal opinion letter. Registered Indians may be eligible for reduced fees. After the ceremony, the signed licence must be submitted by the officiant to the Registrar General to register the marriage.

Key Sections of the Act

1

Definitions

Defines key terms used throughout the Act, such as 'band', 'church', 'issuer', 'licence', and 'Minister'.

2

Administration

States that the administration of the Act is under the direction of the Minister.

3

Delegation of powers and duties

Allows the Minister to delegate their powers and duties under the Act in writing to the Deputy Minister or other ministry employees.

4

Authority to marry

Mandates that no marriage can be solemnized unless it is authorized by a marriage licence or the publication of banns.

5

Who may marry

Sets the age of majority for marriage and requires written parental consent for those aged 16 or 17; it also clarifies that consent is not required for widowed or divorced minors.

6

Application to dispense with consent

Allows a person to apply to a judge for an order to dispense with parental consent if consent is refused or unavailable.

7

Persons lacking mental capacity

Prohibits the issuance of a licence or the solemnization of a marriage if the officiant knows or believes a party lacks the mental capacity to marry.

8

Where dissolution of former marriage recognized in Ontario

Entitles previously married persons to a licence if their prior marriage was legally dissolved or annulled and recognized under Ontario law.

9

Order under Declarations of Death Act, 2002

Provides that a person whose spouse is presumed dead by court order may obtain a marriage licence.

10

Discretionary power of Minister

Grants the Minister discretionary power regarding the issuance of licences under specific circumstances.

11

Issuers

Details the appointment and responsibilities of marriage licence issuers within municipalities.

12

Evidence on applications

Authorizes issuers to require evidence of identity or status and to examine applicants under oath to confirm the truth of their application.

13

Record of licences

Requires issuers to maintain a record of all licences issued.

14

Documents to be forwarded to Registrar General

Directs issuers and officiants to forward necessary documents to the Registrar General following the issuance of a licence or publication of banns.

15

Oaths and affirmations

Empowers issuers to administer oaths or receive affirmations required for the purposes of the Act.

16

Indians

Contains provisions specifically relating to the application of the Act to members of a band or Indigenous entities.

17

Publication of banns

Sets out the rules for solemnizing a marriage through the publication of banns at a place of worship.

18

Where banns not to be published

Prohibits the use of banns if either party has been previously married.

19

Prohibited degrees

Requires that the prohibited degrees of relationship, as defined by federal law, be endorsed on marriage licences and proofs of banns.

20

Who may solemnize marriage

Restricts the power to solemnize marriages to those who are registered under the Act or authorized by section 24.

20.1

Who may be registered — religious body

Outlines the criteria for registering persons from a religious body to solemnize marriages.

20.2

Who may be registered — band, First Nation, Métis or Inuit organization

Details the registration process for individuals representing Indigenous organizations or communities.

20.3

Who may be registered — if no persons recognized as authorized

Provides a pathway for registration in situations where no other authorized persons are available.

20.4

Rights of person registered

Confirms the rights and authority conferred upon a person who is registered under the Act to solemnize marriage.

21

Register

Mandates the maintenance of a register of persons authorized to solemnize marriage.

22

Cancellation of registration

Provides for the cancellation of a person's registration to solemnize marriage.

23

Publication of registration and cancellation

Requires that the registration or cancellation of an officiant be published.

24

Civil marriage

Authorizes judges, justices of the peace, and other specified classes (like municipal clerks and Members of the Assembly) to perform civil marriages.

25

Attendance of parties and witnesses

Requires the physical presence of both parties, two witnesses, and the officiant for the marriage to be valid.

26

Proof of publication

Addresses the requirements for providing proof that banns have been published.

27

Time for solemnization

Addresses rules regarding the timing of the ceremony.

28

Offence

States that any person who contravenes the Act is guilty of an offence.

29

False statement

Makes it an offence to make a false statement in any document required by the Act.

30

Unauthorized solemnization

Prohibits a person from solemnizing a marriage if they are not authorized under the Act.

31

Good faith

Provides that if a marriage is performed in good faith by an unauthorized person, it may be deemed valid if the couple cohabits.

32

Interpretation

Provides interpretative guidance for specific terms used in the Act.

33

Regulations

Authorizes the Lieutenant Governor in Council to make regulations regarding various aspects of the Act.

33.1

Forms

Authorizes the Minister to require the use of specific forms for the administration of the Act.

34

Expenses

Addresses the payment of expenses related to the administration of the Act.

35

Fees

Allows for the prescription of fees payable under the Act.

Frequently Asked Questions

What is the minimum age to get married in Ontario?▾
The minimum age to marry is 16. However, anyone under 18 requires written consent from their parents or legal guardians (Marriage Act, s. 5).
Can we get married online or by proxy?▾
No. The Marriage Act requires the physical presence of both parties, two witnesses, and the officiant at the ceremony (Marriage Act, s. 25).
How long is a marriage licence valid?▾
A marriage licence is valid for three months from the date it is issued.
What happens if our marriage officiant turns out not to be authorized?▾
If the marriage was solemnized in good faith and the parties intended to comply with the Act and have cohabited, the marriage may be deemed valid despite the officiant's lack of authorization (Marriage Act, s. 31).
Do I need to live in Ontario to get married there?▾
No, there are no residency, citizenship, or medical requirements to obtain a marriage licence in Ontario.
What documents do I need if I was divorced outside of Canada?▾
You must obtain authorization from the Minister by submitting a completed application, a statement of sole responsibility, a legal opinion letter from an Ontario lawyer, and a certified copy of the divorce decree (Marriage Act, s. 8).
Who can be a witness at our wedding?▾
Two witnesses are required, and they must be at least 18 years of age (Marriage Act, s. 25).
Are there specific declarations I must make during the ceremony?▾
Yes, both parties must declare in the presence of the officiant and witnesses that they know of no lawful impediment to the marriage and that they take each other as spouses (Marriage Act, s. 24).
Can I get married via the publication of banns instead of a licence?▾
Yes, provided both parties regularly attend the same place of worship in Canada and neither party has been previously married (Marriage Act, s. 17, 18).
What do I do after the ceremony to make it legal?▾
The signed marriage licence must be forwarded by the officiant to the Office of the Registrar General for registration (Marriage Act, s. 14).
Are Members of the Provincial Assembly authorized to perform marriages?▾
Yes, Members of the Assembly may solemnize marriages under the authority of a licence if they have given written notice to the Minister (Marriage Act, s. 24).
Can a person under the influence of drugs or alcohol get married?▾
No, an officiant shall not solemnize a marriage if they know or have reasonable grounds to believe a person lacks the mental capacity to marry, including due to intoxication (Marriage Act, s. 7).

Quick Reference

Two Witnesses Required

Section 25 requires at least two witnesses physically present. They must sign the marriage register (Section 28). Virtual/proxy weddings are prohibited.

Good-Faith Protection

Sections 30 & 31 protect marriages solemnized in good faith, even if a technical defect exists in the officiant's authorization.

Disclaimer: This page provides a plain-language summary of the Ontario Marriage Act for informational purposes only. It is not legal advice. The authoritative text is the official version on the Ontario e-Laws website. This content is automatically synced from official Government of Ontario sources on a monthly basis to reflect amendments.

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