Now in Early Access

Billing for Europe. Done right.

Kontorion automates subscriptions, payments, taxes, dunning, and revenue recognition. Built natively for SEPA, EU VAT, and IFRS 15.

GDPR-compliant · EU Cloud · No credit card required


Built for European businesses in

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< 2 Weeks

Typical Migration Time

99.9%+

Uptime Target

< 200ms

API Latency (p95)

EU-only

Data stays in the EU

Platform

One Platform. No Patchwork.

Subscriptions, payments, taxes, accounting - European businesses have been solving this with workarounds for years. Kontorion solves it natively.

Compliance

EU Tax Logic That Works

VAT OSS, reverse charge, §14 UStG - calculated correctly, not patched after the fact. XRechnung native today; ZUGFeRD and PEPPOL ship from June 2026 on a committed timeline.

Payments

SEPA, Card, All Included

SEPA Direct Debit via GoCardless and card payments via Stripe - live today. Mollie as a second PSP ships in Q2 2026.

Subscriptions

Recurring Billing That Scales

Flexible pricing models, upgrades, downgrades, prorations - all automatic. From your first customer to 10,000+ subscriptions.

Sales

CPQ for Complex Deals

Configure-Price-Quote built into the platform. Complex pricing models, clean proposals, faster closes.

Intelligence

Dunning That Learns

AI-powered dunning workflows, anomaly detection, and revenue forecasting. Fewer failures, better planning.

Infrastructure

EU Cloud, No Compromises

Hosted in Europe. GDPR-native, EU data centers, high availability. Your data never leaves the EU.

How It Works

Automated Billing in Four Steps

Most teams go live in under two weeks.

01 Connect Payment Providers

Stripe for cards and GoCardless for SEPA Direct Debit - live today, connected in minutes. Mollie as an additional PSP ships in Q2 2026.

02 Configure Products & Rules

Set up pricing models, tax logic, and invoice templates. Everything in one place, not across three different tools.

03 Billing Runs Automatically

Recurring billing, dunning, revenue recognition - Kontorion takes over. AI monitors anomalies and optimizes collection timing.

04 Scale Without Rebuilding

From your first customer to 10,000+ subscriptions. No architecture changes, no migrations. Kontorion scales with you.

Testimonials

Real Results, Not Marketing Speak.

“We spent three months trying to implement EU VAT with Chargebee. With Kontorion, it worked on day one.”

MS

Maria Schneider

CFO, CloudOps GmbH

“The migration from Stripe Billing took two weeks. SEPA direct debit just works now - without all the workarounds.”

TK

Thomas Krüger

CTO, NordLogistik AG

“Since implementing AI dunning, our payment failures have dropped by 40%. It paid for itself in the first month.”

JR

Jan Richter

Head of Finance, FinBridge GmbH

Comparison

Why European Teams Switch

Lago, Chargebee, and Hyperline are solid products - but none were built for the requirements of the EU market.

Feature Kontorion Lago Chargebee Hyperline
EU VAT (OSS, Reverse Charge)
SEPA Direct Debit
XRechnung (native)
IFRS 15 Rev Rec
CPQ Module
AI Dunning
German UI + Support
Managed Cloud (EU)
API-First

As of April 2026. Based on publicly available documentation from each provider. ZUGFeRD, Factur-X, and PEPPOL ship in Kontorion from June 2026 and are therefore not listed as current features.

For Developers

An API You Will Love

REST, webhooks, idempotent requests. SDKs for Python, Go, and TypeScript. Fully documented, fully versioned - no reverse-engineering required.

terminal
Limited Early Access Spots

Ready to Automate Your Billing?

15 minutes is all it takes. We will show you how Kontorion handles subscriptions, payments, and compliance for the EU market.

FAQ

Questions We Hear Often

Something missing? Reach out - we respond quickly.

Where is my data stored?

In European data centers. Your data never leaves the EU. GDPR compliance is not an add-on, but a foundation of the architecture.

How long does migration from Stripe Billing or Chargebee take?

Most teams are fully migrated in under two weeks. We provide a migration tool and personal support throughout the switch.

Can I try Kontorion before committing?

Yes. 14 days free, no credit card required. You work with real data in a sandbox environment.

Which payment providers are supported?

Live today: Stripe (cards, Apple/Google Pay, SCA) and GoCardless (SEPA Direct Debit CORE and B2B). Mollie (iDEAL, Bancontact, SEPA) is planned for Q2 2026. More PSPs based on customer demand - tell us what you need.

How does AI dunning work?

Kontorion analyzes payment history and customer behavior to automatically send reminders at the right time through the right channel. No more manual follow-ups.

Is there an API?

A complete REST API with webhooks, idempotent requests, and SDKs for Python, Go, and TypeScript. Documentation at docs.kontorion.eu.

Contact

Sounds interesting?

Whether a quick demo, technical questions, or a conversation about your billing requirements in the EU market - we are here.

contact@frontieralgorithmics.com
Aichach, Germany