The case against transaction fees

Platform pricing in commerce is one of the great unexamined cons of the SaaS era.

The pitch sounds reasonable: "We only succeed when you do." So the platform takes a percentage of every sale — call it 2.9%, sometimes more.

Here is what that actually looks like when you do well:

Monthly revenue	Annual cost of "we only succeed when you do"
$10K	$3,480
$50K	$17,400
$250K	$87,000
$1M	$348,000

That last row is not a typo. A reasonably successful merchant on a percentage-of-revenue platform pays the salary of 4 senior engineers, every year, to nobody who works on their business.

The hidden assumption

The pitch only sounds fair if you believe the platform's cost-to-serve scales linearly with your revenue. It doesn't.

Storing a record of an order that's worth $10 costs the same as storing one worth $10,000. Routing a webhook costs the same. Running an inventory reservation costs the same. The platform's marginal cost per dollar of GMV is essentially constant — but their revenue per dollar of GMV is a percentage. That gap is the success tax.

What we do instead

Brainerce charges a flat subscription based on actual usage primitives — orders, products, AI calls — not on the value of the goods that flow through. Whether you're selling $10 candles or $10,000 watches, the platform cost is the same.

This is the economically honest model. It's also, frankly, the only model that's defensible in 2026, when the marginal cost of compute is the lowest it has ever been.

What this unlocks

Three things change when you stop paying the success tax:

• You can experiment with pricing. Raising the AOV by 5% used to be eaten by fees. Now it's pure margin.
• You can run thin-margin SKUs. Subscription boxes, low-ticket bundles, anything where 3% is the entire margin.
• You can scale without a CFO conversation every quarter. Your platform line stays flat while revenue compounds.

This is the Freedom Pledge, and it's not going anywhere.