Making an event accessible costs extra, but not drastically. On average: +10-20% on the total budget. Breakdown: physical adaptations (ramp, lift, subtitling) €500-2,000; interpreting for the deaf €150-300/hour; space adaptations (quiet room, emergency plan) €200-500; catering diversification (allergy/dietary options) +€2-5 per person. For large events (200+ guests), costs spread better per person than for small ones. ROI comes from reaching more guests (inclusivity = greater reach), a better reputation, and compliance. Many companies see accessibility not as a cost but as an investment in inclusion. Live Impact advises on cost-effective accessibility solutions.