Legal Requirements for Getting Married in Perth, WA

Confused about the legal side of getting married in Perth? You're not alone, but it's simpler than you think. I'm Mark, your Perth marriage celebrant, and handling every bit of this paperwork is part of what I do.

Here's exactly what Australian law requires, and how I take care of it all for you.

What Australian Law Says About Marriage?

Marriage in Australia is governed by the Marriage Act 1961 and the Marriage Regulations 2017. Under Australian law, marriage is defined as the union of two people, to the exclusion of all others, voluntarily entered into for life, a definition updated in December 2017 when marriage equality became law.

The marriage requirements in Western Australia are identical to the rest of Australia; it's federal law. Whether you're planning a beach ceremony in Cottesloe, a vineyard wedding in Margaret River, or a garden celebration in South Perth, the legal process is the same.

All couples have equal rights under Australian marriage law, same-sex, opposite-sex, and gender-diverse. As an LGBTQIA+-affirming Perth celebrant, I celebrate every kind of love, and every couple goes through the exact same legal process with me.

what-australian-law-says-about-marriage-mark-your-ceremony

Criteria to getting married

  • Both parties must be at least 18 years of age or at least one party is 18 years of age and the other person has obtained parents’ authorisation and a court order giving permission to be married

  • Two witnesses must be over 18 years of age

  • All documents need to be in English or have an official NAATI translation attached (www.naati.com.au)

  • All certificates must be originals, extracts or certified copies

  • Both of you, your witnesses and myself sign the official documents (on your wedding day)

A man smiling and reading from a notebook into a microphone during an outdoor event.

What You Actually Need to Do to Get Married in Australia, Perth?

Four legal steps. That's it.

  1. Lodge your Notice of Intended Marriage (NOIM), at least 1 month before your date

  2. Provide proof of identity for both of you

  3. Sign the Declaration of No Legal Impediment (DONLIM) before the ceremony

  4. Say the legal words and sign on the day

I guide you through every single one. Nothing falls through the cracks.

Step 1: Notice of Intended Marriage (NOIM)

The NOIM is your official declaration to the Australian government that you intend to marry.

The rules:

  • Must be lodged at least 1 calendar month before your wedding

  • Cannot be lodged more than 18 months in advance

  • Goes to me, your authorised Perth marriage celebrant, not a government office

What you'll need:

Full legal names as per your ID, Dates and places of birth,

Parents' names and countries of birth, Current marital status

Step 2: Proof of Identity

Both of you must provide identity documents when lodging your NOIM.

Accepted documents:

  • Australian or international passport (preferred)

  • Full birth certificate, not a birth extract or commemorative copy

  • Driver's licence as supplementary ID

Overseas documents? Non-English documents need a NAATI-accredited translation before lodgement. I'll point you to a trusted translator.

Step 4: The Legal Requirements on Your Wedding Day

Three things must happen for your marriage to be legally valid:

  • The Monitum: I say the legally required words, worked naturally into your ceremony. Not robotic. Not awkward.

  • Your Legal Vows: You each say words that confirm your consent.

  • The Signing: You, your partner, two witnesses (18+), and I sign three copies of your marriage certificate. I keep one, you keep one, and I lodge one with the WA Registry of Births, Deaths and Marriages within 14 days.

Your official WA marriage certificate arrives from the Registry around 6–8 weeks later; that's the document you use for name changes, passport updates, and everything legal.

Step 3: Declaration of No Legal Impediment (DONLIM)

A signed declaration that there's no legal reason either of you can't get married.

You cannot legally marry in Australia if you are:

  • Already married to someone else

  • Marrying a close blood relative

  • Under 18 (limited exceptions, see below)

  • Not freely consenting

I prepare the DONLIM and guide you through signing it in the minutes before your ceremony. Takes 60 seconds.

Special Circumstances

Divorced? Bring your Decree Absolute or Australian divorce order. Overseas divorces must be legally recognised in Australia first, I'll advise you.

Widowed? You'll need your late spouse's death certificate. I'll confirm exactly what's required.

Under 18? Australian law requires both parties to be at least 18. In rare cases, a 16–17-year-old can apply to a court for approval; neither can be under 18. Court involvement is required before I can proceed.

I Handle All the Legal Paperwork | That's the Point

Most couples come to me stressed about the legal side. They leave wondering why they were ever worried.

After 200+ weddings across Perth, Fremantle, South Perth, the Hills, and Margaret River, paperwork, deadlines, lodgement, and signing are completely handled. Every time.

When you book with me:

  • I send you the NOIM and check every detail before lodgement

  • I track your legal deadlines so you never miss the one-month window

  • I securely hold your original documents until after your wedding

  • I bring every signed document prepared and organised on the day

  • I lodge your certificate with the WA Registry within 14 days

All couples are welcome: same-sex, opposite-sex, LGBTQIA+-affirming, all backgrounds, all love. Same process, same care, same standard.

Ready to Get Your Perth Wedding Sorted?

The legals are handled. The ceremony will be personal. The day will run smoothly.

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Call Mark: 0433 514 098

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