How to budget for a corporate event (and where the money really goes)

The short answer: start with one total number that has been approved, split it across the main categories (venue, food and drink, production, people and logistics), and hold back a contingency before you book anything. Then track every quote against that plan, checking whether prices include GST and what the minimum spend actually covers.

Most corporate event budgets don’t blow out because of one big mistake. They creep: an extra hour of bar service, a surcharge nobody read, AV that wasn’t in the venue package. Here’s how to build a budget that holds.

Start with the total, not the wish list

Agree the total budget and what it must cover before you look at venues. Is it the whole event, or only the venue and catering? Does it include staff travel, gifts or a photographer? A clear scope stops “we assumed that was separate” conversations later.

It also helps to think per head. Divide the total by the expected guest numbers. That figure quickly tells you whether you are looking at a long lunch, a cocktail party or a fully produced evening, and it makes venue minimum spends easier to compare.

The main cost categories

The costs people forget

• GST. Check whether each quote includes GST (10% in Australia). Mixing inclusive and exclusive quotes is one of the most common budget errors.
• Minimum spends. A minimum spend is not a package. Ask exactly what counts towards it: food, drinks, room hire, staff.
• Surcharges. Some venues and suppliers charge more on Sundays and public holidays, or add card-payment fees.
• Overtime. Extra time for staff, security or the band can add up fast if the night runs late.
• Bump-in and bump-out. Early access for set-up or late pack-down can carry its own fee.
• AV. A “screen and microphone” rarely includes a technician. Ask.
• Delivery and collection for hired furniture, styling and equipment.

How much contingency to keep

A common rule of thumb is to hold back around 10% of the total. Keep it out of the plan until you genuinely need it. Typical calls on it: guest numbers going up after the deadline, a wet-weather change, or an extra hour of bar service on the night.

Track committed spend, not just quotes

Use one simple sheet with four columns for every line: budgeted, quoted, committed (signed or deposit paid) and paid. Update it every time something is booked. Finance teams appreciate it, and it shows you instantly how much room is left.

Where you can save without it showing

• Choose a weeknight or lunch instead of a Friday or Saturday night.
• Pick a venue that already looks good, so you need less styling.
• Use a drinks tab with a cap, or a shorter beverage package with good non-alcoholic options.
• Combine roles: a DJ who can also MC, or a photographer who also captures short video clips.
• Keep speeches short so you don’t pay for an extra hour you didn’t plan.

Budget checklist

1. Approved total and what it covers, in writing.
2. Per-head figure calculated.
3. Every quote marked GST-inclusive or exclusive.
4. Minimum spend inclusions confirmed.
5. Surcharges, overtime and access fees asked about.
6. Contingency set aside.
7. Tracking sheet shared with whoever approves spend.

Want help making the numbers work? See corporate event planning or request a proposal.