When you're building a young B2B SaaS, Peppol e-invoicing lives in the "we'll deal with it later" pile. Invoicing is a feature, not your product. No customer has demanded it yet. And the whole thing looks like XML plumbing for an EU regulation that may not even apply to you this year.
Here's the trap: "later" has a habit of arriving as "this sprint, and it's now on fire." A customer signs, and during onboarding asks whether you can send their invoices over Peppol. Or your home market publishes a mandate date and your roadmap gets rewritten for you.
This article makes the opposite case. For an early-stage SaaS, the cheapest and lowest-risk time to add Peppol is before you're forced to — not because of urgency theatre, but because of how the costs actually break down once you look at them.
Where the EU mandates stand today
You don't need to memorise EU tax law. You need to know that the deadlines are real, dated, and arriving on a schedule you can plan around:
