How to organise a colleague’s birthday party

A colleague’s birthday party works best when the practical details are settled before anyone starts decorating. Confirm the date and room first, then send invitations and track replies, dietary requirements and the final guest count. Use that number to order the cake, set catering quantities and buy drinks. On the day, leave time for chilled items, food preparation, tables, the buffet, music and a final toilet check—not just the decorations.

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The plan, step by step

Every task with its own sub-checklist, in the order you'll actually need them.

Preparations

1
Confirm date and location
2
Reserve a room
3
Send invitations
4
Process registrations
5
Collect dietary requirements
6
Confirm number of guests
7
Order cake
8
Determine catering quantities
2 people
9
Put together the music
10
Check the shopping list
11
Do the shopping
2 people
12
Pick up the cake and refrigerated items
13
Chill drinks
2 people
14
Prepare snacks
3 people
15
Cut vegetables and fruit
2 people
16
Set out dips and sauces
17
Set up the coffee and tea station
18
Set up tables
3 people
19
Set out chairs
2 people
20
Set up the buffet
2 people
21
Hang decorations
2 people
22
Set up gift table
23
Connect sound equipment
24
Place waste stations
25
Check toilets

Event

26
Welcome guests
2 people
27
Serve drinks
2 people
28
Serve snacks
2 people
29
Restock the buffet
2 people
30
Refill drinks
2 people
31
Serve coffee and tea
32
Cut the cake
2 people
33
Serve cake
2 people
34
Operate the music
35
Collect waste along the way
36
Collect used dishes
2 people
37
Store food and drinks safely

Aftercare

38
Remove decorations
2 people
39
Put furniture back
3 people
40
Wash dishes
2 people
41
Switch off equipment
42
Pack leftovers
2 people
43
Dispose of waste
2 people
44
Clean the room
3 people
45
Clean the restrooms
46
Return borrowed items
47
Clear away leftover groceries

What to bring

Grouped the way you'd shop for it, with quantities.

Furniture

Tablesqty 6
Chairsqty 35
Buffet tablesqty 2
Gift table

Tableware

Platesqty 40
Cake platesqty 40
Glassesqty 50
Coffee cupsqty 35
Knivesqty 40
Forksqty 40
Spoonsqty 40
Serving spoonsqty 6

Kitchen

Cutting boardsqty 3
Kitchen knivesqty 3
Serving plattersqty 8
Serving traysqty 4
Cake server
Corkscrewqty 2
Bottle openersqty 2
Thermos flasksqty 3
Coolersqty 3
Ice cube traysqty 3

Equipment

Bluetooth speaker
Extension cordsqty 3
Power stripsqty 3

Decorations

Balloonsqty 80
Balloon ribbonqty 2
Buntingqty 6
Tableclothsqty 6
Napkin holdersqty 6

Lighting

String lightsqty 3

Cleaning

Waste binsqty 4
Cleaning bucketqty 2
Mopsqty 2
Dustpan and brushqty 2

Catering

Groceries

Tips

Confirm the final guest count at least 3 days before the party. Use it to adjust catering quantities, cake portions, chairs, plates, glasses and drinks rather than relying on the invitation total.
Collect dietary requirements with the RSVP and give the caterer the final list 3 days ahead. Keep clearly labelled alternatives separate from the main buffet so guests do not have to guess.
Plan the food and drink timeline backwards from the start time: collect the cake and chilled items on the day, chill drinks before guests arrive, and prepare cut fruit, vegetables, dips and sauces close to serving time.
Set up the room in this order: tables and chairs, buffet and coffee station, cake and gift table, then decorations. This prevents balloons, garlands and tablecloths from getting in the way while furniture and equipment are being moved.
Test the Bluetooth speaker, extension cables and power strips before guests arrive, and place waste points and a bottle opener where people can reach them. A final 30-minute walk-through should cover toilets, drinks, serving utensils, napkins and the cake knife.

Frequently asked questions

How far in advance should I invite colleagues to a birthday party?: Send the invitations 2 to 3 weeks before the party, especially if it takes place outside working hours. Set the RSVP deadline 3 to 5 days before the event so you can confirm catering, cake and seating.
How much food and drink do I need for a colleague’s birthday party?: Base food quantities on the confirmed guest count, with roughly 2 to 3 drinks per person for the first hour and about 1 drink per person for each additional hour. Add a small buffer for late replies and unexpected guests, then chill drinks in batches rather than all at once.
When should I order the birthday cake?: Order the cake at least 5 to 7 days ahead, or earlier if the bakery needs more notice. Confirm the final portion count 3 days before the party and arrange collection on the day so it stays fresh.
What should I do one hour before the colleague’s birthday party?: Finish the buffet and coffee station, put out serving dishes, plates, glasses, cutlery and napkins, and check that drinks are cold. Use the final hour to test the speaker, place the cake and gift table, check the toilets and remove packaging from the guest area.

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