Australian weddings run on two clocks most generic checklists ignore. The first is vendor lead time: the popular Saturday dates from October to March book out 12 to 18 months ahead in every capital, so the vendors with the tightest calendars — venue, photographer, celebrant — have to be locked long before anything else feels urgent. The second is legal: your Notice of Intended Marriage must reach your celebrant at least one month before the ceremony, and no more than 18 months ahead. A checklist that works here is one that respects both clocks, so that's how this one is built — by phase, latest-safe date first.
Twelve to nine months out, make the decisions everything else hangs off: the season or date band, a guest-count range, a working budget, and the city or region. Then book the big three in order of scarcity — venue first, then photographer, then celebrant. Everything about those three bookings gets easier if your date is flexible: a Friday, a Sunday, or a winter date can save 20–30% at the same venue and opens calendars that look full. This is also the window to start the guest list properly, because the count you land on drives every quote you're about to request.
Nine to six months out, build the rest of the vendor team: catering if your venue doesn't include it, flowers and styling, music, and transport. Send each vendor the same brief — date, venue, guest count, what's included — so quotes compare like for like. Get your wedding website up and send save-the-dates now, especially if guests are travelling interstate; accommodation blocks near regional venues go early. If your engagement is long, note that the NOIM window opens at 18 months — your celebrant will usually handle the form at your first planning meeting once the date and venue are locked.
Six to three months out, the planning turns into production. Send invitations with online RSVPs, close in on the menu and dietary collection, sort attire and rings, and confirm the ceremony flow with your celebrant. Put the NOIM in this window deliberately: it needs a witnessed signature and identity documents, and leaving a legal deadline to the final month is how calm plans become frantic ones. The one-month rule is effectively immovable — a prescribed authority can shorten it only in narrow circumstances, and approval is never guaranteed.
The final month is operational handoff. Close RSVPs and chase the stragglers, finish the seating plan, and write the run sheet — who arrives when, where things are set up, and who the venue calls if anything changes. Confirm final counts and payment dates with every vendor, and shortly before the day you'll each sign the legal declaration your celebrant brings. On the day itself the legal core is short: the required words, two witnesses over 18, and three signatures — the rest is celebration.
Every wedding compresses these phases differently — a ten-week engagement runs the same order at triple speed, and the one-month rule still applies. That's exactly what the Wedyesday planner is for: answer a few questions in the start wizard and it generates your personalised checklist in about two minutes, dated backwards from your wedding date, with the NOIM and every other deadline already placed where it belongs.