Compliance workflow layer for billing platforms

Keep your billing system. Add e-invoicing workflows.

Connect the invoice data you already produce. InvoiceBridge sits between your ERP, accounting system, billing platform, or marketplace and country mandates, adding validation, structured output, status, and audit evidence without forcing a billing rebuild.

Keep ERP in place Catch invoice errors early Audit evidence by invoice Germany validation-gated
JSON
customer_invoice.json
Existing invoice data from your billing system
validation passed
POST /v1/invoices/transform
-> existing invoice JSON received
-> country profile selected
-> VAT IDs, totals, and routing fields checked
-> structured XML generated
-> status and audit evidence stored

RESULT workflow_ready
document_url /v1/invoices/inv_123/document

AUDIT
invoice_received
validation_passed
transformed
document_hash 9b1f...e7c4
The problem

E-invoicing mandates are becoming billing product work.

The hard part is not creating another invoice. It is catching country-specific mistakes before they block payment, routing each invoice through the right path, and proving what happened later.

01
PDF

PDF workflows stop being enough

Customers, governments, and networks increasingly expect structured invoice data, routing identifiers, validation results, and machine-readable status.

02
PAY

Rejected invoices slow cash collection

Bad VAT IDs, missing buyer references, wrong tax totals, and unsupported formats become payment delays and support tickets.

03
EU

Every country adds a new exception

Belgium, Germany, Poland, Romania, and Spain each pull billing teams toward different formats, networks, evidence, and rollout timelines.

The solution

One API between your invoices and country-specific rules.

Send existing invoice JSON from your ERP, accounting system, billing platform, or marketplace. InvoiceBridge adds mandate awareness, validation, transformation, status tracking, and audit evidence around it.

01
API

Connect the invoice data you already produce

Keep the ERP, accounting system, billing platform, or marketplace workflow your customers already use.

02
CHK

Catch mandate-specific issues before send

Validate VAT IDs, routing fields, invoice totals, tax totals, currency, and country profile requirements before they hit a customer or authority.

03
LOG

Give finance an answer when they ask

Track each invoice from received to validated, transformed, submitted or recorded, with status and audit evidence attached.

Country workflows

Country-specific workflows, one integration pattern.

Whether you support one market or many, each mandate creates a different operational problem. InvoiceBridge keeps the workflow consistent: check the requirement, validate the invoice, create structured output, track status, and keep evidence.

Legal production support coming soon

Belgium B2B Peppol

Official source
Mandate snapshot Mandatory from January 1, 2026 for nearly all Belgian VAT-liable B2B transactions.
Network or channel Peppol-style network routing
Format direction EN 16931 / Peppol BIS Billing 3.0 UBL-style XML
The pain

PDF and email workflows do not solve structured B2B exchange. Platforms need buyer routing IDs, tax-total validation, delivery status, and evidence without replacing the billing system.

What InvoiceBridge gives you

InvoiceBridge gives product teams a reusable Belgium workflow shape: mandate lookup, buyer routing checks, VAT and total validation, structured XML output, status tracking, and audit evidence.

  • Mandate check endpoint for Belgium B2B
  • Buyer routing ID and VAT ID validation
  • Structured XML transformation
  • Mock provider status and audit trail

Snapshot as of May 19, 2026. Country rules need legal review before production. Germany is usable only when official XRechnung validation passes. Legal production support for Belgium, Poland, Romania, and Spain is coming soon. The other country cards show planned work.

Business outcomes

Built for teams that cannot afford country-by-country rewrites.

01

ERP and accounting SaaS

Add country-specific e-invoicing workflows without forcing customers to abandon the billing screens and invoice data model they already use.

02

Billing platforms

Catch bad totals, VAT IDs, routing fields, and missing mandate data before they become failed sends, customer tickets, or delayed payments.

03

B2B marketplaces

Give sellers one integration path while you prepare country workflows behind the scenes for buyers, authorities, and network requirements.

04

Cross-border finance teams

Answer what happened to an invoice with status, transformed document links, provider references, and chronological audit events.

05

Product and engineering leaders

Centralize mandate checks, validation, transformation, and evidence instead of scattering country logic through billing code.

06

Compliance and support teams

Separate what is usable now, what is coming soon, and what requires official validation so customer conversations stay clear.

07

Infrastructure owners

Use idempotency, request IDs, API-key access, regional metadata, and audit persistence to make invoice workflows operable.

08

Future provider integrations

Keep the same API contract while access-point, government-platform, signing, and webhook integrations are added behind provider boundaries.

Infrastructure

Credible under the hood, simple at the edge.

The sales promise is simple: send invoice JSON and get a compliance workflow back. The implementation still has the platform basics technical buyers expect: API contracts, persistence, idempotency, audit events, OpenAPI docs, and multi-region metadata.

DATA MODEL
Invoice
InvoiceSubmission
ValidationResult
AuditEvent
CountryProfile

MULTI-REGION CONTRACT
GET /health/ready
GET /v1/regions
GET /v1/tenants/{id}/region-decision
X-Deployment-Region
tenant_id + processing_region on records

SECURITY NOTES
X-API-Key required on /v1
VAT IDs masked in logs
Payload size checks
No secrets in code
Pricing

Pay for the workflow, not a billing-system rebuild.

Start by proving the invoice flow locally. Move into paid tiers when you need higher volume, audit retention, integration support, and country rollout planning. Billing and metering are not implemented in this repository yet.

Evaluate
$0 /month

For teams proving the workflow with real invoice examples.

  • Local/demo use
  • Belgium, Germany, Poland, Romania, Spain profiles
  • Validation and transform
  • Mock send or local evidence
  • OpenAPI docs
Start free
Growth
$799 /month

For platforms rolling out e-invoicing support across more customers and countries.

  • 25,000 workflows/month
  • Webhook status events when available
  • Longer audit retention
  • Priority support
  • Integration planning
Review Growth scope
Platform
Custom

For ERP, marketplace, and multi-country platforms that need custom integration planning.

  • Custom volume
  • Provider integration planning
  • Additional country profiles
  • Security review
  • SLA planning
Discuss Platform scope
Compare

Plan details, side by side.

Feature Evaluate Launch Growth Platform
Monthly invoice workflowsDemo/local5,00025,000Custom
Belgium B2B profileComing soonComing soonOfficial integration plannedCustom official
Germany XRechnung no-network pathValidation-gatedValidation-gatedValidator-gatedCustom review
Poland KSeF profileComing soonComing soonOfficial integration plannedCustom official
Romania RO e-Factura profileComing soonComing soonOfficial integration plannedCustom official
Spain SIF profileComing soonComing soonExternal blockersCustom review
Structured transformsYesYesYesYes
Mock provider outcomesYesYesYesYes
Audit trailYesYesYesYes
Webhook deliveryNoPlannedPlannedCustom
Real Peppol/provider integrationsNoNoPlannedCustom integration
SupportDocsEmailPriorityCustom
FAQ

Common questions.

Is this production-certified?

No. Germany is usable only after official validation passes. Legal production support for the other implemented countries is coming soon, and none are certified Peppol, KSeF, RO e-Factura, AEAT, or VERI*FACTU integrations.

Who is this for?

ERP systems, accounting SaaS, billing platforms, B2B marketplaces, and cross-border sellers that need e-invoicing workflows without replacing invoicing.

Why not just generate PDFs?

PDFs do not solve routing, buyer identifiers, country-specific validation, structured exchange, status tracking, or audit evidence.

Can customers keep their current system?

Yes. The product is designed to sit between existing invoice JSON and country workflows, so billing teams do not have to start with a replacement project.

Start de-risking mandates before they become billing rewrites.

Use your existing invoice JSON to validate country requirements, produce structured outputs, track status, and keep audit evidence.