Definition
What is a seat-fill budget?
The seat-fill budget is the maximum amount a producer or presenter can spend on acquisition for a given performance without giving up their margin. It is calculated by multiplying the seats still to sell by the contribution margin of one additional ticket. It is not derived from production cost, nor from a percentage of target revenue, because a show's costs are committed before the first sale.
Why one more ticket brings in almost its full price
Once the venue is rented, the artist fee paid and the technical crew hired, almost all costs are committed. One more attendee adds a ticket sold, minus the ticketing commission, applicable fees and a few variable costs. Their contribution margin (what they bring in once variable costs are paid) is therefore close to the ticket price.
An unsold seat at curtain time cannot be carried over. Cutting the budget when sales are slow can therefore be costly: that is when each empty seat represents the most margin to go after.
Who carries the box-office risk
The seat-fill budget belongs to whoever collects the box office. The agreement between producer and presenter settles it:
- In a flat-fee buyout, the presenter pays a fixed amount for the show and keeps the box office: the seat-fill budget is theirs.
- In a revenue split, producer and presenter divide the box office. Each has its own seat-fill budget on the same venue, calculated on its share (see the marketing budget under revenue sharing).
- In a co-production, the calculation is done jointly. So is the decision to spend.
A ceiling, not a target
Spending the entire seat-fill budget means selling the extra seats with no margin at all. Falia's working framework puts reasonable spending at 40 to 60% of the ceiling. The last tickets cost the most: the point where the cost of one more ticket exceeds its contribution margin often comes before a full house.
The calculation is redone for each performance, not for a whole run. A run of eight nights, two of them already sold out, does not have the same seat-fill budget across all eight.
Seat-fill budget = (seats at target occupancy − tickets sold without paid acquisition) × contribution margin per ticket
Tickets sold without paid acquisition (loyal audience, newsletter, press relations) make up natural occupancy, measured on your past performances. Contribution margin is the average ticket price minus the ticketing commission, fees and variable costs. In a revenue split, it is calculated on your share of the box office.
Fictional example: a 500-seat venue sells 55% of its tickets without advertising, or 275 tickets. The presenter aims for 85%, so 150 seats to win. The average ticket sells for $42; after commission and fees ($8), it brings in $34. The seat-fill budget is 150 × $34, or $5,100.
The presenter spends $3,000 and sells the 150 target tickets: the real cost is $20 per ticket won. Dividing the spend by all 425 tickets sold would give $7, a number that flatters the campaign.
We read the seat-fill budget as the way to make the budget follow the gap to fill rather than the production cost. A fixed percentage of production cost gives too much to the show its loyal audience has already filled. It does not give enough to the hard-to-sell show.
The hardest number to establish is natural occupancy: what you sell without advertising. It is also what lets you measure what the campaign actually produced, because cost per ticket is calculated on the extra tickets only. Complimentary tickets count as a cost: their number multiplied by the contribution margin compares directly with an advertising budget.
Not to be confused with
- Marketing budget
- The marketing budget is set for the year and for all of the business's activities. The seat-fill budget is calculated for a single performance, from the seats still to sell.
- Cost per ticket sold
- Cost per ticket sold divides spending by tickets. Calculated on all tickets, it flatters the campaign. The seat-fill budget sets the ceiling: divided by the seats to win, it gives back the contribution margin, which the cost per ticket won should not exceed.
Related concepts
- Advertising incrementality
- Marketing budget
- On-sale peak
- Drip pricing
- Customer acquisition cost
- Social media advertising
Further reading
- Live shows: calculating the marketing budget to sell remaining tickets
- Ticket sales: adapting the marketing budget to revenue sharing
- Event advertising: selling show tickets with Meta and Google Ads
- Quebec-produced shows: venue occupancy rates in 2024
- Incrementality tests: measuring the sales your advertising generates
- Ticket pricing: how should you display prices and service fees?
Related services
Frequently asked questions
Why not aim for a full house?
Because the cost of one more ticket climbs as the venue fills. The last seats sell to people who don't know the show and have to be convinced in a few days. A venue at 85% with margin is often worth more than a full house at a loss.
How should I spread the budget across a run of dates?
Calculate a seat-fill budget for each date, since natural occupancy varies with the day of the week and the position in the run. Nights that sell themselves need nothing. Their share does more on the weak dates.
