How do I collect an unpaid invoice from an event planning client?
How to collect an unpaid event planning invoice
Short answer
Event planners should never do the full event without receiving most of the fee first — the event itself is the leverage, and it's gone the moment it happens. A standard structure: 25–50% upfront, 25–50% 30 days before the event, and a small final balance within 7 days after. If a client misses the pre-event payment, stop work before the event — not after.
Event planning has a unique leverage dynamic: all the pressure to pay sits in the weeks before the event, not after. Once the event is done, the client has received everything of value. The flowers were there, the caterer showed up, the venue was set. From that point on, a client who was already hesitant to pay has no remaining urgency. That's why collecting most of the fee before the event isn't just good practice. It's how you avoid the difficult conversation that happens when a client ghosts you on the final invoice after a successful event.
Spell the pre-event structure out in the signed contract: a deposit at signing (typically 25% to 50%), a progress payment 30 to 60 days before the event (another 25% to 50%), and a final true-up for reimbursables, vendor invoices, or a small balance due within 7 to 14 days after the event. The contract should explicitly say that planning activities stop if the progress payment isn't received by the deadline, and that the event itself may be cancelled if the pre-event balance isn't paid.
When the final post-event balance goes unpaid, the sequence is standard: call at day 3, written notice at day 14, escalation at day 30. The specific leverage event planners have is the vendor relationship. If the client is a business that regularly hosts events (corporate meetings, conferences), the fact that future vendors will hear about non-payment can motivate resolution. State it only if true and without framing it as a threat. "The event industry community is small and my vendor relationships are central to my business" is accurate and appropriate.
For disputes about reimbursables (expenses incurred on the client's behalf that the client now disputes), documentation is everything. Keep receipts, invoices, and approval records for every vendor payment. A client who verbally authorized a flower budget but is now disputing the amount needs to see the original email or text where they said "yes, go ahead." Event planners should document every verbal authorization in writing the moment it happens.