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Why E-Invoicing Is No Longer Optional

Across the globe, governments are tightening regulations around digital invoicing. From Colombia and Mexico to Spain and Italy, real-time e-invoicing and tax reporting have become mandatory — often requiring businesses to submit invoices in government-mandated formats, with digital signatures, and in some cases, via direct tax authority portals.

For startups scaling across markets, keeping up with these rapidly evolving local rules can be a logistical nightmare. That’s where Invopop, a Madrid-based startup, comes in.

The Founding Story: From Cabify to Compliance Innovation

Founded in 2021, Invopop is the brainchild of Sam Lown, former CTO of Cabify, and Juan Moliner Malaxechevarría, ex-consultant at Boston Consulting Group.

While expanding Cabify into Latin America and other regions, Sam encountered the fragmented and often painful reality of local e-invoicing compliance. Each country had its own formats, rules, and requirements — prompting the team to build an internal tool to automate and streamline the process.

That tool evolved into Invopop: a universal API that empowers businesses to generate and submit tax-compliant invoices worldwide.

What Invopop Offers: One API, Global Coverage

At its core, Invopop offers a single API designed to simplify tax compliance across jurisdictions. Its key features include:

• Unified Compliance API: Currently supports local e-invoicing standards in 25+ countries.
• Real-Time Sales Recording: Automatically formats and transmits invoices to relevant tax authorities.
• Digital Signature Integration: Ensures that all invoices meet national legal and security requirements.
• Slack Notifications & PDF Generation: Keeps the entire team in the loop with accessible, formatted invoices.

It’s a solution especially favored by fast-scaling tech startups and e-commerce platforms looking to stay ahead of tax compliance without building internal tools for every market.

Client Base and Global Reach

Invopop now supports over 500 clients globally, including:

• Fever
• SumUp
• DeepL
• Amenitiz
• Sunday

To date, the platform has processed over 1 million invoices and is expanding rapidly across Latin America and Europe — particularly in Mexico, Peru, and Italy, where e-invoicing regulation is tightening.

Awards and Recognition

In 2024, Invopop clinched first place in the Enterprise category at South Summit Madrid, standing out among 4,500+ global startups. The win cemented its status as a serious contender in Europe’s fintech and tax-tech ecosystem.

Lean Team, Global Footprint

Despite serving hundreds of companies across dozens of countries, Invopop remains impressively lean — operating with just 7 employees based in Madrid. The team is made up of backend engineers, full-stack developers, and compliance-focused technologists — proof that small teams can solve big global problems.

Final Thoughts: A Startup to Watch

As more countries adopt real-time tax reporting, e-invoicing isn’t just a back-office issue anymore — it’s a core operational necessity. Invopop is quietly solving one of the most underappreciated pain points in global business — helping companies focus on growth, not government paperwork.

With its rapidly expanding footprint and a solution built for scale, Invopop is one of Europe’s most promising players in the future of international business compliance.

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