dddinvoices.com

What It Is

DDD Invoices is a global e-invoicing and fiscalization infrastructure platform for software companies. It is positioned not as a standard invoicing SaaS product, but as a way for ERP systems, SaaS platforms, e-commerce businesses, POS systems, marketplaces, and accounting/invoicing software to gain multi-country compliant invoicing capabilities through a single API integration. The platform covers the creation, sending, receiving, and archiving of electronic documents, while handling complex requirements around invoices, e-invoices, VAT, real-time reporting, and connections to tax authorities in different countries.

Core Capabilities and Developer Experience

Its core approach is API-first: developers submit invoice data as simple JSON, and the platform converts it into locally compliant PDF invoices, e-invoices, or fiscalization data for the target country. It can then deliver them to tax authorities, PEPPOL, customer software, or email. The site states support for 30+ countries, B2B/B2G e-invoicing, B2C real-time reporting, PEPPOL BIS, secure archiving for 5-10 years, electronic signatures, EU timestamps, tax reporting, bulk invoicing, automated billing, and embeddable UI. On the receiving side, it can also collect invoices from sources such as tax authorities, PEPPOL, email OCR, and supplier ERPs, then convert them into formats importable into ERP systems. In terms of documentation, the website mentions API documentation, a Playground, test API keys, and production API keys. The integration flow appears clear, though the main content does not show concrete API examples.

Pricing and Business Model

Pricing is handled on a contact-us basis: users can start testing and integration for free, then pay once they are ready to deploy. Billing is monthly, with payment by bank card or by receiving an e-invoice at the end of the billing period. The official description says the per-invoice cost decreases as invoice volume grows, and software vendors can split billing by customer usage and resell the service. The advantage is that this model suits growing software vendors; the downside is that there is no public unit price, making it hard to estimate costs quickly before procurement.

Pros, Cons, and Who It’s For

Its strengths are a single integration for multi-country compliance, a complete loop covering sending, receiving, archiving, and reporting, and a design aimed at high invoice volumes, bulk invoicing, and embedded use cases. In the cited case study, WheelSys/Primero uses its API to handle fiscalization and real-time reporting in Montenegro and Serbia, which suggests the product is more infrastructure-oriented. Limitations include the lack of clarity on whether it is open source or self-hostable, and the main content does not provide a complete list of all supported countries or the capability boundaries for each market. It is best suited to software providers expanding across borders who do not want to maintain e-invoicing standards country by country over the long term. For a small business that only needs local invoicing, it may be more than necessary.

Access from China and Alternatives

The main content does not provide information about access from mainland China, so network connectivity, latency, and payment availability need to be tested in practice. For China-local e-invoicing scenarios, local finance and tax API providers usually still need to be evaluated. International alternatives to consider include Avalara, Sovos, Pagero, Stripe Tax, and various PEPPOL Access Points.