DDD Invoices: One API for Global E‑Invoicing Compliance

How the API‑First Compliance Layer Works

DDD Invoices simplifies compliance by sitting between business software and government systems.

A typical workflow looks like this:

1. A platform sends standardized invoice data to the DDD Invoices API.
2. The system converts the data into the required country‑specific invoice format.
3. It validates the invoice against local regulatory and tax rules.
4. The invoice is routed to the correct tax portal, e‑invoicing network, or reporting system.
5. Status updates and confirmations are returned to the original system.

This abstraction removes the need for companies to build custom integrations for Continuous Transaction Controls (CTC), fiscalization requirements, Peppol connectivity, or country‑specific reporting mandates.

According to company materials and industry coverage, the platform enables businesses to integrate compliance requirements across more than 30 countries through a single API connection.

AI Capabilities in the Platform

DDD Invoices incorporates AI components to help automate parts of the compliance workflow.

Key capabilities include:

• AI‑driven compliance logic that helps ensure invoices meet evolving tax requirements
• Document processing AI that extracts structured data from unstructured invoice files such as PDFs

These features help convert invoices into machine‑readable data and ensure they meet jurisdiction‑specific validation rules before submission to tax authorities or networks.

Integrations With Business Software

The platform is designed to sit inside existing business software stacks rather than replacing them.

DDD Invoices integrates with:

• ERP and accounting systems
• SaaS billing platforms
• Government tax portals
• Peppol e‑invoicing networks
• Real‑time reporting systems

It also provides integrations with platforms such as Stripe, Bitrix, Shopify, and Chargebee, allowing software providers to embed compliant invoicing into their existing financial workflows.

Customers Already Using the Platform

Several software companies are already using DDD Invoices to support invoicing compliance across multiple markets. These include:

• Access Group
• Zenoti
• Logitude
• WheelSys

These companies use the infrastructure to deliver compliant invoicing capabilities to their own customers across different regulatory environments.

€1.31 Million Seed Funding Round

DDD Invoices raised €1.31 million in seed funding to accelerate development of its global compliance infrastructure.

The round was backed by:

• Fil Rouge Capital
• 500 Global

Additional angel investors and advisors from the ERP and e‑invoicing ecosystem also participated, including Bengt Nilsson, Hans Berg, Oscar Wegland, Alexander Jansson, and Carl Julius Nilsson.

How the Company Plans to Use the Funding

The new capital will be used to expand the company’s technology and market reach.

Key priorities include:

• Expanding country coverage for e‑invoicing compliance
• Making integrations faster and easier for software platforms to deploy
• Growing product, engineering, and go‑to‑market teams

As more governments mandate real‑time reporting and digital invoice submissions, infrastructure that abstracts these regulatory requirements is becoming a core part of modern financial software stacks. DDD Invoices aims to position its API as the backbone that lets global software platforms remain compliant without building country‑by‑country integrations themselves.