What is Appointment No-Show Cost?
The dollar amount lost per missed appointment — typically $150-$400 for dental, $80-$200 for service-business, $200-$600 for medical / specialty.
Definition
Appointment no-show cost is the dollar amount lost per missed appointment. It's the chair revenue (or service revenue) that couldn't be resold at short notice plus the operational cost of the empty slot.
The cost varies by vertical: - General dental: $150-$300 per no-show. - Specialty dental (ortho, oral surgery): $300-$600 per no-show. - Salon / spa: $80-$250 per no-show. - Medical specialty: $200-$500 per no-show. - Therapy / counseling: $120-$250 per no-show.
Most operators underestimate the cost because they don't include the operational overhead (staff time, scheduling friction, downstream rebooking cost). The fully-loaded number is usually 1.3-1.6x the headline revenue figure.
Cumulative cost is non-trivial. A 3-chair dental practice running at 12% no-show rate sees roughly $2,200/month in no-show cost. Annualised: $26,400.
How it works
No-show cost compounds because the chair (or service slot) operates at fixed capacity. Every empty slot is paid-for time the operator can't recover. Unlike a manufacturing line that can backfill production, a calendar can't reclaim Tuesday at 2pm.
The recovery is operational. A 3-stage reminder cadence (7-day email, 3-day SMS, 1-day SMS with prep info) typically cuts no-shows 40-60% inside 30 days. The cost recovered is the chair (or slot) revenue that now lands on the calendar instead of evaporating.
Deposits + cancellation policies layered on top can reduce the residual no-show rate from 4-5% to 2-3%, but the bulk of the recovery comes from the reminder cadence itself.
Examples and data
A 3-chair dental practice (general):
Baseline: 12% no-show rate. Average chair revenue $250/hr. ~30 no-shows per week across 3 chairs. Monthly no-show cost: 30 × $250 × 4 = $30,000/month theoretical maximum, $4,500/month operational (factoring in lower revenue per slot type). After 3-stage reminders: 5% no-show rate. Monthly cost drops to $1,875. Recovery: $2,625/month, or $31,500/year.
A 90-seat restaurant (full-service):
Reservation no-show rate: 14%. Average covers $85. Monthly no-show cost: $1,200-$2,500. After deposit-on-booking + 24h SMS confirm: 4% no-show. Cost drops 60-70%.
Both verticals see the bulk of recovery in month one.
The Edynamics lens
Edynamics deploys appointment-reminder automation as one of the first playbooks in every engagement where it's relevant. The no-show recovery is one of the most visible Revenue Recovery wins because the dollars are clean and the recovery is fast.