Producers and presenters: the budget it takes to fill a venue
An empty seat at curtain time is worth zero, forever. Your acquisition budget should therefore not be calculated as a percentage of production cost, but from the contribution margin carried by the seats you still have to sell. The calculation changes the amount completely.
- The average occupancy rate for performances of Quebec origin stood at 72% in 2024. Nearly three seats in ten stay empty, and each one carried almost an entire margin.
- On a show, most of the costs are already committed. One more attendee costs almost nothing, so their contribution margin is close to the ticket price.
- Your spending ceiling is calculated by multiplying the seats you still need to sell by that contribution margin, not by applying a percentage to the production budget.
- The first tickets sell almost by themselves. The last ones cost the most. Dividing spend by total tickets sold flatters the number and hides what advertising actually produced.
- Complimentary tickets, 8% of attendance in Quebec in 2024, are an acquisition cost, not attendance. They should appear in the calculation as such.
On this page
What is the seat-fill budget
The seat-fill budget is the maximum amount a producer or presenter can spend on acquisition for a given performance without destroying margin. It is calculated by multiplying the number of seats still to sell by the contribution margin of one additional ticket. It is not derived from production cost, nor from a percentage of targeted revenue, because a show's costs are committed before the first sale.
The calculation most producers make
This piece is written for producers, presenters and organizations that sell tickets for fixed-date performances: shows, comedy, theatre, festivals, concert series. It covers the acquisition budget, not programming.
One question comes before all the others: who carries the box-office risk? The answer depends on the contract, and it determines who owns the calculation that follows. 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, and their contribution margin includes no variable artist fee. In a revenue split, producer and presenter divide the box office, and each has its own seat-fill budget on the same venue, calculated on its share. In a co-production, the calculation is done jointly, and so is the decision to spend.
Make this check before putting a number on anything. A business that applies the calculation without knowing which side of the contract it stands on budgets for a risk it does not carry, or ignores the one it does.
The common reflex is to set the promotion budget as a percentage of production cost. Ten percent, fifteen percent, depending on the house's habit. It is simple, it is stable, and it has no bearing on what decides the outcome.
The problem is that this percentage says nothing about the only thing that matters: how many seats are left to sell and how much each one brings in. Two shows with the same production cost, one already filled to 85% by its loyal audience and the other to 45%, do not have the same need or the same ceiling at all.
The consequence is predictable. The easy show gets too much budget and the hard show not enough, because the budget follows production cost rather than the gap that needs filling.
The contribution margin of an empty seat
This is the point everything else assumes, and it is specific to the show.
Once the venue is rented, the artist fee paid, the technical crew hired and the promotion produced, almost all of your costs are committed. One more attendee does not raise any of those line items. It adds one ticket sold, minus the ticketing commission, applicable rights and a few minor variable fees.
In other words, the contribution margin of one additional ticket is close to the ticket price. On a $42 ticket, with $8 of commission and rights, it comes to $34.
This reality inverts budget intuition. A cautious producer cuts spending when sales are slow. Yet that is precisely the moment when every empty seat carries the full remaining margin, which makes spending most justifiable.
An unsold seat at curtain time does not carry over. Unlike a product that stays in inventory and will sell later, it is lost for good. It is the only category of commerce where inaction has an immediate and irreversible cost, which is what makes cutting the budget at the end of a campaign so costly.
Calculating your seat-fill budget
| Line | What's used | Example case |
|---|---|---|
| 0. Your share of the box office | Depends on the contract: flat-fee buyout, revenue split or co-production | 100% in a flat-fee buyout |
| 1. Venue capacity | Seats sellable | 500 |
| 2. Natural occupancy | What you sell without paid acquisition: loyal audience, newsletter, media relations | 55%, or 275 tickets |
| 3. Seats still to sell | Occupancy target minus natural occupancy | 85% target, so 150 seats |
| 4. Contribution margin per ticket | Average price minus commission, rights and variable fees | $34 |
| 5. Seat-fill budget | Line 3 multiplied by line 4 | $5,100 |
This $5,100 is a ceiling, not a target. Spending all of it amounts to working for nothing on those 150 tickets. Spending 40% to 60% of the ceiling, or $2,000 to $3,000 in this case, leaves real margin while still giving you the means to fill the room.
Two details decide whether the calculation holds. Line 2 is the hardest to establish and the most important: it requires knowing what you sell without advertising, which is measured on your past performances. And line 4 must reflect your actual ticketing commissions, which vary a great deal from one agreement to another.
Redo this calculation per performance, not per run. A run of eight nights where two are already sold out does not have the same seat-fill budget across all eight.
The last tickets cost the most
Cost per ticket sold is not a straight line, it is a curve that climbs.
The first tickets sell almost by themselves. Loyal audience, newsletter, subscribers, media relations. Their acquisition cost is close to zero, and they would have sold even without a campaign.
The next ones take effort: targeted advertising to adjacent audiences, partnerships, reminders. Cost per ticket becomes real but stays modest.
The last ones are the most expensive. These are people who do not know the show, who have no attendance habit, and who must be convinced within a few days. It is not unusual for the last fifty tickets alone to cost more than the first three hundred.
The practical consequence is that a 100% occupancy target is rarely the right one. The point where the marginal cost of a ticket exceeds its contribution margin almost always arrives before the venue is full. Aiming for 85% with margin beats 100% at a loss.
This curve produces the most common, and most flattering, measurement error in the industry.
A producer spends $3,000, sells 425 tickets, divides and concludes an acquisition cost of $7 per ticket. The figure is wrong, because 275 of those tickets would have sold without a dollar of advertising.
The correct calculation relates the spend to incremental tickets only: $3,000 for 150 tickets gives $20 per ticket. At $34 of contribution margin, the operation stays profitable, but the picture is very different, and the decision that follows would not be the same.
Establishing that incremental share requires knowing your natural occupancy, which means measuring it on performances without a campaign, or comparing similar dates with and without effort. The full logic is in our article on incrementality tests.
Your budget has an expiry date
A quirk no other type of commerce has: your budget loses its value on a date known in advance.
Three thousand dollars spent five weeks before the performance have time to produce sales. The same three thousand dollars spent two days before arrive after most people have already planned their evening. The amount is identical, the return is not.
This forces you to decide early, on incomplete information. The right reflex is to set a checkpoint: a set number of days before the performance, if occupancy has not reached a threshold, you commit the planned tranche. Waiting to be certain amounts to deciding once it is too late to act.
This checkpoint is set once, by type of show, rather than renegotiated every time under pressure.
Complimentary tickets are a cost
The Institut de la statistique du Québec measures the attendance rate with complimentary tickets. In 2024, it stood at 8% for performances of Quebec origin, against 5% for those of foreign origin. Multidisciplinary shows reached 23%.
A complimentary ticket fills a seat without producing revenue. It has real uses: filling a room for atmosphere, serving partners, generating discovery. These are legitimate goals, and they are expenses.
Treat them as such in the calculation. A hundred complimentary tickets in a 500-seat venue, at $34 of contribution margin, represent $3,400 of unrealized margin. That amount should appear next to your advertising budget, not inside your occupancy rate.
The question to ask then becomes comparable: would that $3,400 have filled more paying seats if invested in acquisition instead? Sometimes yes, sometimes no, and only the calculation can settle it.
An institutional benchmark helps place your own performance. The Institut de la statistique du Québec measured a 72% occupancy rate for paid performances of Quebec origin in 2024, or nearly three empty seats in ten, each carrying almost an entire margin.
What to establish before your next on-sale
These five figures come from your past performances. Without them, the promotion budget gets set out of habit rather than on the margin at stake.
- Which contract binds you for this run, and what share of the box office comes to you?
- What is your natural occupancy, measured on comparable performances without paid acquisition?
- What is your actual contribution margin per ticket, ticketing commissions and rights deducted?
- What occupancy rate are you aiming for, and why that one rather than a full house?
- How many complimentary tickets do you hand out on average, and does that amount show up anywhere as a cost?
- How many days before the performance do you set your checkpoint, and who decides to commit the next tranche?
The answer that holds up gives a natural occupancy rate and a margin in dollars. An evasive answer talks about a usual promotion budget. A vendor who proposes a budget without having asked about your natural occupancy cannot know how many tickets their campaign produced.
Establishing these figures from your past performances is exactly what a paid audit produces.
What stays with you: the actual contribution margin per ticket, the complimentary-ticket policy, and the decision to commit a tranche at the checkpoint. What does get delegated: measuring natural occupancy from the historical record, calculating the seat-fill budget per performance, running the campaigns and reading the dates. A producer who knows their natural occupancy knows within ten minutes whether they need to spend on a given date. A producer who does not know it spreads an equal budget across every date, which overfunds the nights that are already full and lets the others empty out.
How the online channel and the physical venue fit together is covered in opening an online channel.
The overall view of the marketing plan is in building the marketing budget.
Making an acquisition budget produce revenue, including deciding which dates not to spend on, is at the heart of the Optimize the profitability of your digital campaigns goal.
Already running your own campaigns and looking for reinforcement on measurement? See our work in paid advertising.
Frequently asked questions about the seat-fill budget
Why not aim for a full house?
Because the marginal ticket cost climbs as the venue fills up, and it eventually exceeds the contribution margin. The last seats sell to people who do not know the show and who must be convinced within a few days. A venue at 85% with margin beats a full house at a loss, unless the image of a sold-out room serves a specific goal you are willing to pay for.
How do I measure my natural occupancy?
On comparable performances where you did not run paid acquisition, or by comparing similar dates with and without a campaign. The figure varies by artist, venue, day of the week and season, which forces you to reason by category rather than with a single average. It is the hardest figure to establish, and the one that makes everything else possible.
Does this calculation apply to a festival?
The structure holds, but two things change. Capacity becomes a site constraint rather than a venue constraint, and passes or wristbands complicate the calculation of margin per entry. Do the calculation by day and by stage when their capacity is distinct, rather than across the whole event.
Should I lower prices when sales are slow?
It is the riskiest lever. A last-minute discount punishes people who bought early and trains the buyers of your next shows to wait. In most cases, spending on acquisition at full price costs less than a markdown, because the markdown also applies to tickets you would have sold at full price anyway.
How do I spread a budget across a series of dates?
Never evenly. Calculate the seat-fill budget per date, since natural occupancy varies by day of the week and position in the run. Nights that sell themselves need nothing, and the budget they would have consumed is worth far more on the weaker dates.
What should I do with complimentary tickets?
Count them as a cost and decide on them like an expense. Multiply their number by your contribution margin: the resulting amount compares directly to an advertising budget. They keep all their usefulness for filling a room or serving partners, provided the decision is made with the amount in view.
- Institut de la statistique du Québec, Observatoire de la culture et des communications du Québec, Fréquentation des spectacles au Québec en 2024 selon leur provenance et leur langue d'interprétation, published February 2026. Source for the 72% and 83% occupancy rates, the $42 average price, average revenue of $14,126 per performance and the complimentary-ticket attendance rates.
- Institut de la statistique du Québec, Observatoire de la culture et des communications du Québec, Portrait des disciplines en arts de la scène au Québec en 2024, published February 2026. Source for the by-discipline data, including the 23% complimentary-ticket rate in multidisciplinary shows.
- Falia working framework, seat-fill budget calculation. The amounts are explicit example scenarios, to be redone with your own capacity, natural occupancy and actual commissions.
Gabriel almost always takes your first call and carries out your audit. He builds the strategy starting from your growth goal: where to put your budget, which market to test and how to connect each lead to a real sale in your CRM. He mainly leads engagements for three goals: Optimize the profitability of your digital campaigns, Develop a new market, and Generate demand and growth. With Geneviève, he also works on organic search (SEO), AI visibility (GEO) and conversion rate optimization (CRO). The sales a Google Ads or Meta Ads campaign brings in depend on the page that receives the click. He writes mainly about marketing strategy, paid advertising and measurement.
About Falia →
SEO
Paid advertising
Conversion
AI visibility
Web design