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 sequence, 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 short version

If you read nothing else, read the table. Everything below it is the reasoning.

When	What has to happen	Why then
12 to 9 months	Brief signed, budget shaped, venue and date confirmed	Almost every other decision depends on the venue and the date
9 to 6 months	The suppliers with the longest lead times: catering, photography, entertainment	These are the ones that run out, not the ones that matter most
6 to 3 months	Design, styling, stationery, transport, accommodation	Cheap to change now, expensive to change later
3 to 1 months	Guest numbers, seating, dietary requirements, final walk-through	Catering and floor plans cannot be finalized without numbers
The final fortnight	Every supplier confirmed in writing, run sheet issued, balances paid	This is where a diary error surfaces while it is still fixable
Event week	Bump-in schedule, contingency plan, print everything	The signal at the venue will be poor. Assume it

12 to 9 months: decide what the event is

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

What happens instead is the brief: 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.

Why the venue comes before everything

A venue decides the guest capacity, the catering options, the access hours, whether you need a wet-weather plan, whether the power will run what you are plugging in, and how much of the room you have to build 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, not by importance

The instinct is to book the things that matter most first. The correct order is to book the things that run out first.

• 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: marquees, furniture, staging, generators.

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

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.

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: 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; do not wait for them.

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: arrival, parking, the first room they enter, where they stand before they sit, and where they go when they need a moment away from it.

The final fortnight: confirm everything in writing

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. 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, and the calls you do not receive on the day are the entire value of the thing.

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

Build the bump-in schedule so suppliers do not arrive on top of each other, and sequence it by what has to be in the room first. Florists cannot dress a table that is not built.

Write the contingency column: what happens if it rains, if a supplier is late, if a speaker does not arrive. Deciding at four o'clock on the day is how a small problem becomes a visible one.

Then print everything. The one thing you can rely on at a venue is that the signal will be poor.

After: 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.

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: divide the fee you charged by the hours the event actually took you. The pricing calculator gives you the figure to compare it against.

Unit 4 of the course builds each of these documents properly, and Unit 5 covers the client conversations that hold the timeline together.