Event Registration Platform Fees: How to Keep More of Every Ticket

Start with one number: $1,635. That is what a marketplace platform charging a typical 3.7% + $1.79 per ticket takes from a 500-ticket event priced at $40. Stripe payment processing adds another $730 on the same sales, so $2,365 leaves before you pay for a venue, a caterer or a speaker. Run that event four times a year and the platform alone takes $6,540. This article explains the three ways event software charges, what a platform fee is and is not, and when a subscription costs less than per-ticket fees. We built CompleteEvent, so we have a bias. Our own fees are in the table below, next to everyone else's.

What Are Platform Fees and Why Do They Exist?

A platform fee is what the event software company takes from each sale, on top of payment processing. Platforms that do not charge a subscription rely on it entirely: you pay nothing until you sell a ticket. For a first-time organizer unsure whether an event will sell, that is reasonable. As your events grow, the platform's cut grows with them, while its cost of processing one more ticket stays close to zero.

The Three Fee Models

Model 1: Per-Ticket Fee

The platform charges a percentage plus a flat amount on each ticket. A common rate on marketplace platforms is 3.7% + $1.79 per paid ticket. The fee can be passed to attendees as a "service fee" at checkout or absorbed by you. Either way the money goes to the platform. On a $25 ticket that is $2.71, almost 11%. On a $100 ticket it is $5.49, about 5.5%. The flat part is why per-ticket fees hurt small and mid-priced tickets most.

Model 2: Percentage Only

A percentage of each sale with no flat per-ticket charge. At 3% of gross revenue, a $50,000 event pays the platform $1,500 whatever the ticket count. CompleteEvent's Free plan works this way: no monthly cost and a 3% platform fee on paid tickets.

Model 3: Subscription Plus a Small Percentage

You pay a monthly fee, and the platform's cut of each sale drops to a small percentage with no flat per-ticket charge. CompleteEvent's paid plans work this way: Starter is $99/month plus 1%, Growth $149/month plus 0.75%, and Pro $249/month plus 0.5%. On a $40 ticket, Starter's fee is $0.40 instead of $3.27. The trade-off is that you pay the subscription whether or not an event runs. At a $40 ticket, Starter costs less than a 3.7% + $1.79 platform once you sell about 414 tickets a year.

Platform Fees vs. Payment Processing

Payment processing is a separate cost every platform passes through. Stripe charges 2.9% + $0.30 per card payment. That is the cost of moving money and applies on every platform. On a $40 ticket, Stripe takes $1.46.

So on a $40 ticket, a 3.7% + $1.79 platform plus Stripe deducts $4.73. CompleteEvent Starter plus Stripe deducts $1.86. On 500 tickets, that is $1,435 more kept by your organization, before subtracting the subscription.

Read the fine print on any platform that advertises low fees. Some add a percentage labeled as a "service fee," "processing margin" or "technology fee." Check that your payout equals the ticket price minus only the fees you expected.

Platform Fee Comparison

All platforms above also pass through Stripe or equivalent payment processing (typically 2.9% + $0.30 per transaction). It is left out of the platform fee column because it is the same everywhere. Free tickets carry no platform fee on any CompleteEvent plan.

When Per-Ticket Fees Are Worth It

One-time or infrequent events. If you run one small event a year, a monthly subscription pays for eleven months you do not use. A fees-only plan costs nothing until you sell.

Low volume, low prices. On 50 tickets at $15, a 3.7% + $1.79 platform takes about $117. A percentage-only plan takes less: CompleteEvent Free's 3% is $22.50. Neither justifies a subscription.

Discovery. Marketplace platforms have browsing audiences. If your event depends on strangers finding it and your marketing budget is small, that reach may be worth the fee. A registration platform like CompleteEvent has no built-in audience; you bring your own attendees.

When a Subscription Saves Real Money

Recurring events. Four events a year at 200 attendees and $50 tickets cost about $2,912 a year at 3.7% + $1.79. On CompleteEvent Starter, the same 800 tickets cost $1,188 in subscription plus $400 in platform fees: $1,588. The more events you run, the wider the gap.

Higher ticket prices. A $200 dinner ticket carries $9.19 in fees at 3.7% + $1.79. Two dinners of 100 guests come to $1,838 a year. Starter is $1,188 plus $400 in platform fees: $1,588.

Nonprofits with tight margins. A 3.7% + $1.79 fee takes $7.34 from a $150 gala ticket, money that would otherwise reach your mission. Two galas of 150 guests pay about $2,202 a year that way. On Starter, the same 300 tickets cost $1,188 plus $450: $1,638. Nonprofits also get 20% off paid plans.

Several events at once. Per-ticket costs rise with every event you add. A subscription does not, so organizations running conference workshops or chapter events in several cities come out ahead.

What "Free for Nonprofits" Should Mean

"Free event registration software for nonprofits" is a common search, and the results are mixed. Some platforms are free to start and recover the cost through a per-ticket cut that grows with every registration. For a nonprofit, the question is how much of each ticket reaches your mission after fees.

Test it at your real volume. Multiply your expected tickets for the year by each platform's per-ticket cost, add any subscription, and compare totals. Free events are the exception: on CompleteEvent, a $0 ticket has no platform fee on any plan.

The Bottom Line

The right model depends on your volume, ticket price and how often you run events. For one small event a year, a fees-only plan is reasonable. For organizations that run events regularly or sell tickets above about $30, a subscription with a small percentage almost always keeps more money with you.

To run the numbers for your events, see our pricing page or start a free account.