Payments used to sit at the edge of vertical software. A bolt-on, a checkbox, something a third party handled while your team stayed focused on the product. That is changing fast. For a growing number of software companies, payments are now central to the roadmap, the revenue model, and the
Most software companies meet PCI scope at the worst possible moment. A prospect’s security team sends a questionnaire. An acquirer asks for an Attestation of Compliance. A merchant forwards a notice from their bank and wants to know what it means. The scramble that follows is rarely a sign that
Every Constellation Software operating company that wanted to embed payments has faced the same decision. Build the infrastructure yourself, with all the compliance, underwriting, and risk work that comes with it. Or bolt on something generic that was never designed for how vertical market software actually operates. That decision is
Stripe is a remarkable piece of engineering. For a startup taking its first online payment, or a horizontal app serving customers across every industry at once, it is hard to beat. That is not the question worth asking. The question for a vertical SaaS company or an ISV is narrower
For independent software vendors handling payments, security is not a checkbox. It is the architecture you inherit the moment you start processing transactions through your software. It shapes your merchant relationships, your liability profile, and your operating complexity for years. Most ISVs evaluating a payment platform underestimate this. They focus
Processing fees keep climbing. Merchants notice. Partners hear about it. For ISVs and vertical SaaS platforms, this conversation has become routine. A merchant calls. Their margins are tighter than last quarter. Credit card fees are part of why. They want to know if there is anything you can do about
As software platforms evolve into systems of record, customers no longer expect to be redirected elsewhere to complete a transaction. They expect payments to happen seamlessly, inside the product they already trust. That shift changes the role of payments entirely. What was once external infrastructure is now a core part
