Wedding Planning Timeline by Month (Australia)
A month-by-month wedding planning timeline for Australian couples: when to book each supplier, lodge the NOIM, and build the run sheet for the day.
Your wedding planning timeline has three working windows: the first months after getting engaged (the structural decisions), months 12 to 9 out (booking suppliers), and the final 6 months (locking in details and building the run sheet for the day). Australian couples average a 24-month engagement, which means most of this guide is not urgent on day one - but the decisions you delay earliest are the ones that close off your date options.1
Why the timeline pays for itself early
Sticking to budget is the top stressor for 24% of Australian couples, ahead of the guest list at 15% and keeping on top of tasks at 10%.6 The two are connected: couples who do not set a budget framework early spend about 23% more than they intended, finishing at an average of $38,252 against a starting plan near $29,471.5 A timeline does not solve budget problems, but it does surface them early enough to make decisions about them rather than absorbing them after the fact.
The phases at a glance
| Phase | Timing | Key actions |
|---|---|---|
| Foundation | 18+ months | Date, season, budget, venue search, guest count |
| Booking window | 12 to 9 months | Venue, celebrant, photographer, music, hair and makeup |
| Logistics | 6 months | Cars, invitations, menu, florist, accommodation |
| Detail | 3 months | Final guest count, seating plan, run sheet started |
| Legal minimum | 4 weeks | Notice of Intended Marriage filed |
18+ months out: set the foundations
Start with the three decisions that limit your options the longest: the date, the season, and the initial guest count.
Date and season. October is the single busiest month in Australia, taking 17% of the year's weddings, and spring as a whole (September to November) accounts for 38%. Autumn (March to May) runs second at 31%.7 Saturday is the dominant day at 53% of 2026 weddings.10 If you want a Saturday in October, you are competing with a large share of the market for venue space - and the Australian Bureau of Statistics confirms that demand is real: 25 October was the single most popular marriage date in 2025, with 2,035 couples.9
Choosing an off-peak month or a Friday does not mean a second-tier wedding. It means more venue options, better supplier availability, and in some cases meaningfully lower costs per head. Autumn runs at 31% of the year's weddings and has the same climate conditions as spring in most states.
Budget. Set a specific number from actual research into costs in your area, then add a 20% contingency to it before you agree it with everyone who has a view on the wedding. The average couple starts at $29,471 and finishes at $38,252 - that 23% gap is not waste, it is scope that accumulates over 18 to 24 months.5 A written budget framework lets you track scope as it happens rather than discovering it at the end.
Guest count. The first number to establish, because it determines venue size, catering per-head costs, and invitation quantities. Australian couples plan for 108 guests on average and end up with 85 - a cut of 23 driven mostly by budget pressure.8 Building your budget around a number you can actually accommodate is more reliable than planning for your ideal number and cutting later.
The NOIM window opens now. The Notice of Intended Marriage can be filed up to 18 months before the wedding.4 Most couples do not file this early, but knowing the window is open means you can book a celebrant now and formalise the engagement without rushing the rest of the planning.
12 months out: book the anchors
The order Australian couples book suppliers - from venue first to decorations last - reflects the relative scarcity of each type.3 The timing data explains why: venues are booked an average of 11 months before the wedding, and the next tier of suppliers (celebrant, photographer, musicians, hair and makeup artists) all average 9 months.2
Venue. The most time-sensitive booking. At 12 months out, you have a one-month buffer against the average. On a popular date in spring, some venues on the shortlist will already be gone. Visit three to five options, get written quotes, and confirm in writing before you tell anyone the date.
Celebrant. Book as soon as you have a confirmed venue date. Your celebrant holds the legal weight of the ceremony and should be involved in the run sheet from early on. Most have one available slot on any given Saturday; a good one fills up at the same pace as a good photographer.2
Photographer. Review portfolios carefully and read any samples of how the photographer communicates during the booking process. The photographer is in most of the moments you will look at in 20 years. Nine months is the average booking lead time; on popular dates, the better photographers fill before that.2
Videographer and music. Both follow photography in the typical buying cycle.3 Live musicians average the same 9-month booking window as photographers and celebrants.2
9 months out: style and logistics
Hair and makeup artists average a 9-month booking lead time.2 For a group of four or five people needing preparation on the morning, you need a team with capacity on the day, and the better teams fill at the same rate as the better photographers.
Confirm your attire order, particularly if the gown involves a made-to-order or imported design. Most dressmakers need several months for production and a separate window for alterations - getting the order placed now removes that variable from the critical path.
Flowers, stylists, and wedding hire equipment (chairs, linens, tableware) typically come next in the buying cycle.3 Start approaching florists and stylists with your colour palette and venue photos so they can propose something specific. Hire companies often have fixed inventory per date; confirm early rather than discovering on a site visit that the chairs you want are already committed.
Begin planning accommodation for the night before and the wedding night. Block booking a small group of rooms avoids last-minute pressure on guests who are travelling.
6 months out: the detail layer
Cars are booked an average of 6 months before the wedding.2 Six months is also the natural point to send formal invitations - enough lead time for interstate or international guests to make travel arrangements.
At this point, collect dietary requirements from every guest. Caterers typically ask for confirmed numbers and a dietary breakdown 4 to 6 weeks before the event, and having the data already collected means you are not chasing RSVPs in the final month.
Confirm the full menu with your caterer and get any selections locked in writing. If your venue has a separate catering supplier, request a run-through of what they need from you for the service schedule - the timing of courses feeds directly into the run sheet.
The seating plan often gets left too late. If you start a first draft at 6 months - even with placeholder seats for people who have not RSVPed - you have three months to revise it as replies come in rather than building it from scratch under deadline pressure.
3 months out: build the run sheet
Finalise the guest count. This number flows into catering, the seating plan, and every line of the run sheet that has a head count attached to it.
The run sheet for the day - the minute-by-minute schedule that every supplier works from - typically starts as a rough draft at 3 months and is tightened up in the final weeks. The PlannedBy run sheet generator builds that schedule from a single input: the ceremony time. From that one field, it derives getting-ready, departure, guest arrival, family photos, reception, and send-off - and adjusts every row automatically when anything shifts.
Keeping on top of tasks is a stressor for 10% of couples, and most of that pressure lands in the final 3 months when the detail work compresses against the date.6 A shared document with vendor contact details, arrival windows, and each supplier's specific requirements prevents the scramble that comes from trying to remember who confirmed what.
Confirm arrival times with every supplier in writing. The caterer, the photographer, the musicians, and the hair and makeup team cannot finalise their own schedules for the day without a time from yours.
4 weeks out: the legal minimum
Australian law requires the Notice of Intended Marriage to be filed with your celebrant at least 1 month before the wedding.4 If it has not been done yet, this is the hard deadline - the ceremony cannot legally proceed without it.
One month out is a useful checkpoint for everything else too:
- Final run sheet circulated to every supplier, the wedding party, and any helpers
- Emergency kit assembled: backup pins and tape, pain relief, a phone charger, a small first-aid kit
- Any outstanding supplier balances paid so nothing needs to be resolved on the day
- Venue walkthrough completed with the venue coordinator if you have not done one recently
Your celebrant should have all paperwork signed before any rehearsal. Bring it up at least a week before the wedding rather than the day before.
Frequently asked questions
How far in advance should you start planning a wedding in Australia?
Australian couples average a 24-month engagement.1 For a popular date in spring or October, a minimum of 12 months of planning runway lets you book the venue and the major suppliers before the best options are gone. With 18 months, you can make decisions at a considered pace. With less than 6 months, you need to move on venue and celebrant in the first weeks.
What is the Notice of Intended Marriage?
The Notice of Intended Marriage (NOIM) is the legal form you give your authorised celebrant before getting married in Australia. It must be given at least 1 month before the wedding and can be given up to 18 months before.4 Both partners sign it. Your celebrant keeps the form and uses it to verify the legal requirements are met before the ceremony.
What order do you book wedding suppliers in Australia?
The typical AU buying cycle starts with the venue, then catering, then a planner if you are using one, then the celebrant, photographer, wedding attire, videographer, and music.3 Cars, flowers, stylists, and hire equipment come later in the cycle. The timing that matters: venues book 11 months out on average, and the ceremony and photography suppliers close at 9 months.2
Why do Australian couples spend more than their original wedding budget?
The average overspend is 23%, moving from a starting budget of $29,471 to an average final spend of $38,252.5 Most of it is scope added over time: extra guests, upgraded styling, additions to the menu. Setting a fixed guest number at the start and treating any additions as deliberate trade-offs reduces the gap.
When should you start the seating plan?
A first draft at 3 months - even with placeholder seats for people who have not responded - gives you time to revise as RSVPs come in. Leaving it until the final 2 weeks means building it under deadline pressure when other preparation is also happening.
What is the most popular month to get married in Australia?
October, at 17% of the year's weddings, which makes it the peak of the peak season.7 Spring as a whole (September to November) accounts for 38%. Autumn (March to May) runs second at 31%. If you want a venue that is well-regarded in your area and a date in spring, 12 months of lead time is the minimum, not a buffer.
The next decision is the venue. It is the booking that fixes the date, and the date is what every other decision is scheduled around. Use the PlannedBy run sheet generator to start your day-of schedule once the venue confirms - the ceremony time is the only input it needs.