An anniversary party costs roughly €250 to €350+ per person ex. VAT for 250 to 500 guests — a total of roughly €95,000 to €175,000+. For 500 to 1,000 guests you should reckon on roughly €225 to €325+ per person (a total of roughly €170,000 to €325,000+). For 1,000 to 2,000 guests, roughly €200 to €300+ per person (a total of roughly €300,000 to €600,000+). Above 2,000 guests, roughly €150 to €200+ per person. All amounts exclude VAT.
Including venue, catering, entertainment and production. The largest cost items are venue and catering (40-50%), entertainment and production (20-30%) and communication (5-10%).