Built for Europe

The billing layer
for Europe.

Kontier turns catalogs, seats and usage events into paid, audit-proof invoices — EU VAT OSS, XRechnung, SEPA and DATEV in one API.

Start free for 14 days API documentation

XRechnung · EN 16931 INV-2026-0847

Kontier GmbH → Muster AG 2026-08-06

API Calls · 128.40096,30 €

Seats · Team × 24288,00 €

EU VAT OSS · 19 %73,02 €

Total384,30 €457,32 €

● Rating ● Tax ● Payment ● Booked ✓ Automated

SEPA Lastschrift validiert

EU VAT OSS

DE19 %

FR20 %

IT22 %

OSS 19 %73,02 €

Total457,32 €

SEPA

pain.008CORE

IBANDE44 ·· 3000

FälligD-2

1400 Forderungen+457,32

8400 Erlöse−384,30

1776 USt−73,02

Problem

Every pricing change becomes an engineering project.

6+ months

is what a product team typically spends on billing integration, tax edge cases and dunning — instead of the product.

2,184

EU tax rules under 2006/112/EC apply to every invoice — with OSS thresholds, FX and proration.

5–10%

of revenue is lost to failed SEPA debits and cards without active dunning.

Self-serve and usage-based models exploded the demands on billing. Generic payment plugins and DIY pipelines break at the first pricing change. We rebuilt the stack: one layer that bills the way Europe audits.

Learn more

Core systems

Four systems. One billing layer.

Monetize, bill, collect, close — standalone or chained into one pipeline. The same API runs a prototype and production.

Monetize

Catalogs, seats, tiers, promos and usage metering as data, not code. Pricing changes without a deploy.

Catalog synced …
Bill & tax

One event in, one XRechnung out. 2,184 tax rules, OSS, FX pinning and proration in a single pass.

Billing & taxing …
Collect & recover

SEPA, Stripe and GoCardless with R-transaction routing. Dunning, retries, wallets and holds built in.

Collecting …
Close & audit

Signed ledger, IFRS 15 / ASC 606, GoBD and DATEV export. Month-end close without Excel.

Ledger signed …

Live product

Watch Kontier work.

Four screens from the real product — what your finance and engineering teams use every day.

Welcome to Kontier

€42,380 collected from 36 invoices this week

EUR (€) Last 12 months

Annual recurring revenue €1,486,200

Customers: 1,284ARPA: €1,158

Outstanding receivables €84,350

Open: 23Late: 4Failed: 0

Cashflow €312,480

Recurring: €248,100One-off: €64,380

Events · today142

Events · last 7 days1,284

Events · last 30 days5,847

EU VAT OSS, aggregated live

Comparison

The EU billing comparison.

14 criteria against Lago, Chargebee and Hyperline — continuously updated.

Fully supported
Partially supported
Not supported

Where Kontier wins, and where it doesn't.
	Lago	Chargebee	Hyperline
EU VAT (OSS, reverse charge, VIES)		Partially supported	Partially supported
SEPA Direct Debit (CORE + B2B)
XRechnung (native, with Leitweg-ID)
IFRS 15 / ASC 606 rev rec	Partially supported	Partially supported
Plan & price versioning (replay-safe)
Per-invoice FX pinning	Partially supported	Partially supported	Partially supported
Volume discounts, graduated tiers & packages (with formulas)		Partially supported
Wallets + holds + prepaid
Marketplace settlements	Partially supported	Partially supported	Partially supported
AI dunning + R-transaction routing	Partially supported	Partially supported	Partially supported
RFC 9457 errors + idempotent webhooks		Partially supported	Partially supported
Test clocks + sandbox keys
German UI + support	Partially supported
Managed Cloud (EU-only)	Partially supported	Partially supported	Partially supported

EU VAT (OSS, reverse charge, VIES)

Kontier Fully supported
Lago Not supported
Chargebee Partially supported
Hyperline Partially supported

SEPA Direct Debit (CORE + B2B)

Kontier Fully supported
Lago Not supported
Chargebee Fully supported
Hyperline Fully supported

XRechnung (native, with Leitweg-ID)

Kontier Fully supported
Lago Not supported
Chargebee Not supported
Hyperline Not supported

IFRS 15 / ASC 606 rev rec

Kontier Fully supported
Lago Partially supported
Chargebee Partially supported
Hyperline Not supported

Plan & price versioning (replay-safe)

Kontier Fully supported
Lago Not supported
Chargebee Not supported
Hyperline Not supported

Per-invoice FX pinning

Kontier Fully supported
Lago Partially supported
Chargebee Partially supported
Hyperline Partially supported

Volume discounts, graduated tiers & packages (with formulas)

Kontier Fully supported
Lago Not supported
Chargebee Partially supported
Hyperline Not supported

Wallets + holds + prepaid

Kontier Fully supported
Lago Not supported
Chargebee Not supported
Hyperline Not supported

Marketplace settlements

Kontier Fully supported
Lago Partially supported
Chargebee Partially supported
Hyperline Partially supported

AI dunning + R-transaction routing

Kontier Fully supported
Lago Partially supported
Chargebee Partially supported
Hyperline Partially supported

RFC 9457 errors + idempotent webhooks

Kontier Fully supported
Lago Not supported
Chargebee Partially supported
Hyperline Partially supported

Test clocks + sandbox keys

Kontier Fully supported
Lago Not supported
Chargebee Not supported
Hyperline Not supported

German UI + support

Kontier Fully supported
Lago Partially supported
Chargebee Fully supported
Hyperline Fully supported

Managed Cloud (EU-only)

Kontier Fully supported
Lago Partially supported
Chargebee Partially supported
Hyperline Partially supported

As of July 2026. Based on publicly available documentation from each provider. ZUGFeRD, Factur-X, Peppol, and DATEV are available in Kontier.

Sources: lago.app · chargebee.com · hyperline.co

Logos and trademarks are property of their respective owners. No endorsement implied.

Deepdive

How the billing layer is built.

Tax engine

2,184 rules under 2006/112/EC, OSS thresholds, FX pinning and proration — decided per line item, not per country.

Signed ledger

Every posting signed and chained. IFRS 15 / ASC 606, GoBD-compliant, with DATEV export to your accountant.

Dunning & routing

R-transaction codes drive retry strategies. Wallets, holds and multi-rail collection recover revenue that would otherwise lapse.

How it works

From usage event to paid invoice.

Connect catalog & usage.

REST API, SDKs or dashboard. One event is enough.

Pick a blueprint.

12 business models — from per-seat SaaS to outcome-based. With formula and API example.

Bill & close.

XRechnung out, SEPA collection in, DATEV export to your accountant.

Business Models

Pick your business model. The blueprint is already here.

Twelve documented blueprints with ready-made API calls – configure, don't rebuild.

See all blueprints in the docs

SaaS per-seat
Billing formula seats × price/month, day-exact proration API example
```
POST /v1/subscriptions
{ "price": "pro_seat_v3", "quantity": 12 }
```
API platform
Billing formula calls × €0.0004, tiered from 5M API example
```
POST /v1/usage
{ "meter": "api_calls", "quantity": 18402 }
```
Cloud infrastructure
Billing formula vCPU-h × €0.031 + egress GB × €0.02 API example
```
POST /v1/usage
{ "meter": "vcpu_hours", "quantity": 713.5 }
```
Marketplace + payouts
Billing formula GMV × 12% commission → split payout API example
```
POST /v1/charges
{ "amount": 10000, "split": { "fee": 1200 } }
```
Reseller network
Billing formula list price − 30% margin, per partner tier API example
```
POST /v1/invoices
{ "customer": "reseller_…", "price": "tier_gold" }
```
Domain registrar
Billing formula registration + renewal × years, promo-ready API example
```
POST /v1/subscriptions
{ "price": "domain_renewal" }
```
Hybrid PaaS
Billing formula base €49 + usage beyond free quota API example
```
POST /v1/usage
{ "meter": "build_minutes", "quantity": 420 }
```
Subscription box
Billing formula €29.90/month, −15% annually API example
```
POST /v1/subscriptions
{ "price": "box_monthly" }
```
Telco carrier
Billing formula base price + GB tiers API example
```
POST /v1/usage
{ "meter": "data_gb", "quantity": 38.2 }
```
Creator platform
Billing formula revenue − 10% platform fee → payout API example
```
POST /v1/charges
{ "amount": 500, "split": { "creator": "acct_…" } }
```
Enterprise SaaS
Billing formula flat per entity + PO reference API example
```
POST /v1/invoices
{ "customer": "entity_de_…", "price": "ent_flat" }
```
Outcome-based services
Billing formula flat fee + bonus per milestone API example
```
POST /v1/invoices
{ "price": "milestone_golive" }
```

FAQ

Questions we hear often.

Is Kontier a payment provider?

No. Kontier sits on top of your payment providers: Stripe for cards, GoCardless for SEPA direct debit. You don't need a new PSP contract. Kontier drives collection, retries and dunning through the providers you already have.

How does migration work?

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

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.

What does Kontier cost?

After the 14-day trial with real data, from €79/month – cancel monthly, no setup fee. All plans are on the pricing page.

Can I cancel and export my data at any time?

Yes. Kontier is cancellable monthly, and your data – customers, invoices, accounting data – is fully exportable at any time. No lock-in.

What support do I get at launch?

Migration concierge, blueprint setup, and a direct line to engineering. We stay on it until your first OSS filing runs through cleanly.

See Kontier on your business model.

14 days free
from €79/month
cancel monthly

Book a blueprint demo

15 minutes, your model, real numbers.
Get an API key

Sandbox with real EU tax rules.
Issue your first invoice

XRechnung-compliant from day one.

The billing layer for Europe.

Every pricing change becomes an engineering project.

Four systems. One billing layer.

Monetize

Bill & tax

Collect & recover

Close & audit