The Event Planning Timeline, What to Do and When

Every event runs backwards. The date is the one thing that cannot move, so every decision has a deadline defined by it, and the single most common reason a plan comes apart is that something was done in the wrong order rather than done badly.

This is the event planning timeline, from the first conversation to the final invoice. Adjust the months to the event you have. A corporate day can come together in six weeks, and a popular venue in peak season is booked more than a year out. The order holds either way.

The timeline at a glance

Longer lead times are becoming normal for weddings in particular. The Knot's research on engagement length puts the average at 15 months, up from 14 before the pandemic. Here at the Event Planning Institute, we've found that wedding clients now book their planner about a month earlier than they did three years ago.

Whatever the lead time, the phases fall in the same order. If you read nothing else, read the table, which gives each phase with what has to happen in it and why it happens then. Everything below it is the reasoning.

Read down the right-hand column and a pattern appears. Every "why" is about what the next phase needs, which is the whole argument for working backwards. The task-by-task version of the same sequence is in the complete event planning checklist.

12 to 9 months, decide what the event is

Nothing gets booked in this phase until the very end. That is the discipline, and it is the one most new planners break.

What happens instead is the brief, which covers what the event is for, who is coming, what the client actually cares about and what they do not want. Get it in writing and get it signed off. Almost every argument later in a project is a disagreement about what was agreed here, and a written brief ends it before it starts.

Then the budget, shaped by category rather than by supplier, with a contingency line held back rather than allocated. And then, only then, the venue. The planning agreement with the client belongs here too, and our guide to what goes in an event planning contract covers the clauses that matter.

Why the venue comes before everything

A venue decides more of the event than any other single booking. Before a supplier is contacted, the venue has already settled a long list of questions.

• The guest capacity, seated and standing.
• The catering options, including whether an outside caterer is allowed at all.
• The access hours for bump-in and pack-down.
• Whether a wet-weather plan is needed.
• Whether the power will run what suppliers plan to plug in.
• How much of the room has to be built from nothing.

Booking a supplier before the venue is choosing an answer before you know the question.

The contract matters as much as the room. Read it for access times, what counts as an extra, the noise curfew, the pack-down deadline and who pays for damage. Those are the terms that cost money later, and most planners skim them once and then discover them on the day.

9 to 6 months, book by lead time rather than importance

The instinct is to book the things that matter most first. The correct order is to book the things that run out first, and in most markets that list looks much the same.

• Catering, because it is usually the largest line in the budget and the hardest to change late.
• Photography and video, because good ones are booked a year ahead in peak season.
• Entertainment, for the same reason, and because it drives the running order of the evening.
• Anything hired in volume, such as marquees, furniture, staging and generators.

Stationery, favors and signage do not belong here. They feel urgent because they are visible, and they can be turned around in weeks.

One small booking does belong on the photographer's brief now, though. The room is only ever perfect once, in the quarter of an hour before the first guest arrives. Put photographing it on the run sheet, with a name against it, because those images are the ones a planner's portfolio is built from.

6 to 3 months, the decisions that are cheap to change

Design, styling, stationery, transport and accommodation all land here. They are grouped together because they share one property. Changing them now costs an email, and changing them in the final month costs money.

Permits belong in this window as well. Alcohol, amplified sound, road closures and temporary structures can each need approval, and the SBA page on licenses and permits explains how local, state and federal rules divide. The venue or the city's events office will know what applies, and approvals take weeks.

This is also the phase where scope creep arrives, usually politely, one addition at a time. Price each one as it comes up rather than absorbing it. A change order is a one-page document, and it is the difference between a client who adds two things and a client who adds twenty.

3 to 1 months, the numbers

Guest numbers drive catering, seating, transport and the floor plan, and nothing downstream of them can be finalized until they settle. Chase the responses rather than waiting for them, because a quiet guest list does not fill itself in.

Do the final walk-through in this window rather than in the last fortnight, so that anything it surfaces still has time to be fixed. Walk the guest journey in order, the way a guest would experience it.

1. Arrival and parking, including where a taxi or rideshare drops people off.
2. The first room they enter, and where coats and bags go.
3. Where they stand before they sit, and how long they will stand there.
4. The route to the restrooms and the exits.
5. Where they go when they need a moment away from it all.

Most problems a walk-through finds are small, such as a step with no ramp or a bar placed where the queue will block a door. Found now, each one costs a conversation. Found on the day, it costs the schedule.

The final fortnight, confirm everything in writing

Confirm every supplier, individually, in writing, however certain you are. The confirmation is not a formality. It is the step where a diary error, a changed contact or a misremembered arrival time surfaces while there is still a fortnight to fix it.

Then issue the run sheet, built from the event timeline template if you are starting from scratch. Every supplier gets the whole document rather than only their own lines, because a supplier who can see the whole day solves small problems without calling you. Our guide on how to write an event run sheet covers the layout.

Take the final balance now, before the event rather than after it. An invoice sent the week after is the hardest money in this industry to collect.

Event week, assume the worst about the signal

Event week is for sequencing and for writing down the decisions nobody wants to make on the day. Three jobs matter more than the rest.

• Build the bump-in schedule so suppliers do not arrive on top of each other, sequenced by what has to be in the room first. Florists cannot dress a table that is not built.
• Write the contingency column, covering what happens if it rains, if a supplier is late or if a speaker does not arrive.
• Print everything, including the run sheet, the floor plan and the supplier contact list.

The contingency column exists because deciding at four o'clock on the day is how a small problem becomes a visible one. Our post on what to do when a supplier does not turn up shows how to write it. And print, because the one thing you can rely on at a venue is that the signal will be poor.

After the event, the part that pays for the next booking

Pack-down is part of the plan, not the end of it, and it is where deposits are lost. Know who is taking what, when the room has to be clear, and who does the final walk-through with the venue.

In the week after, send the client a short debrief and ask for the review while they are still pleased. Then do the arithmetic that decides whether the business works, which is dividing the fee you charged by the hours the event actually took you.

As an illustration, a planner who charged $3,000 for a wedding and spent 75 hours on it earned $40 an hour before costs. If the quote assumed 50 hours, the next one needs a higher fee or a tighter scope. The event pricing calculator gives a figure to compare it against.

Where the course goes further

Unit 4 of the Fundamentals Course, Timelines, Logistics and Run Sheets, builds each of the documents in this timeline properly, from the planning timeline to the floor plan and the run sheet. Unit 5 covers the client conversations and the brief that hold the timeline together.