A corporate event budget should cover eight cost centres: venue and meeting space, accommodation, F&B, AV and production, transport, activities, staffing, and contingency (10-15%). Track committed vs actual spend throughout planning. The biggest budget overruns come from F&B and AV — get fixed quotes for both.
Most first-draft event budgets miss 15-25% of real cost because the planner thinks in categories a hotel invoices in — not in the fifty line items a finished event actually consumes.
Venue
- Meeting room rental (main + breakouts + green room)
- Room flip / changeover fees
- Overnight security if rigging stays up
- Early-access and late-teardown fees
Accommodation
- Attendee room block
- Speaker/VIP rooms (often upgraded)
- Staff rooms
- Attrition exposure reserve (15-20% of block cost)
Food & beverage
- Arrival refreshments / welcome reception
- Breakfasts (in block rate or separate)
- Morning coffee break
- Lunch (working, networking, or plated)
- Afternoon coffee break
- Dinner — plated, buffet, or off-site
- Bar / drinks reception
- Dietary-specific uplifts
- Service charge and VAT
AV and production
- Stage, screen, projection
- Sound system, mics
- Lighting
- Recording and streaming
- Graphics / lower thirds / holding slides
- Tech crew labour
- Rehearsal time
Speakers and content
- Speaker fees
- Speaker travel and accommodation
- Speaker gifts
- Moderator fees
- Content development / slide design
Attendee experience
- Registration platform and badges
- Signage (digital and printed)
- Swag and attendee gifts
- Networking activity / entertainment
- Off-site activity / transport to venue
Staff and event management
- Event management agency fee (if any)
- Internal staff travel
- Hostesses and on-site crew
- Security
Marketing and communications
- Pre-event invitations and reminders
- Event website / app
- Post-event content production
Miscellaneous and contingency
- Shipping and storage
- Printing
- Taxes and service charges not caught elsewhere
- Contingency: 10% for established event, 15% for new format
European per-person benchmarks
A 2-day in-person corporate meeting in a 4-star European city hotel typically runs €900-1,400 per attendee all-in (room + F&B + meeting + AV share). Add €200-400 per attendee for a gala dinner with entertainment. Luxury tier runs €1,600-2,400 per person.
Build the budget bottom-up by line, then sanity-check against per-person benchmarks. A budget that's 30% below benchmark has missed something.
Always book against forecast, not budget. If your forecast is €150k and your budget is €135k, negotiate to €135k but commit to €150k — the €15k buffer absorbs the surprises that always happen.
Common Budget Overruns and How to Prevent Them
The most frequent source of budget overruns in corporate events is the gap between estimated and actual F&B consumption. Hotel F&B minimums are contractual floors, not forecasts. If your event has open bar service, a high-energy evening programme, or a guest list that includes heavy consumers, actual F&B spend can exceed estimates by 20 to 40 percent. Build your F&B budget line based on the hotel's per-person average for similar events, not on the minimum spend figure in the contract.
AV and production costs are the second most common source of overruns. Initial quotes for in-house AV packages often exclude items that only become apparent during the technical walkthrough: additional screens for side-view visibility, a confidence monitor for the presenter, extra microphones for panel sessions, or a streaming setup for virtual attendees. Ask for a fully itemised AV quote that covers the complete technical specification of your event, not a package price that may not include everything you need.
Building in Contingency Without Inflating the Estimate
A contingency line of 10 to 15 percent is standard practice in corporate event budgets and should be presented openly to internal stakeholders as a planned reserve, not a hidden buffer. Frame it honestly: events involve variables that cannot all be predicted at contracting stage, and a contingency line ensures that minor unexpected costs do not require a budget amendment process mid-planning.
If your organisation's budget approval process makes contingency lines difficult to justify, build the reserve into your individual line items instead. Add 10 percent to your F&B estimate, 15 percent to your AV estimate, and 10 percent to your transport estimate. This achieves the same protection without requiring a separate contingency approval. The risk is that it makes individual line items look inflated, so use whichever presentation approach your approvers find most credible.