Blog

September 9, 2025

How to Build Fortnox Integration With API.1

Fortnox is Sweden’s leading accounting platform, used by thousands of businesses every day. If you’re working on a fintech, SaaS, or banking solution, integrating with Fortnox isn’t a matter of if—it’s a matter of when. In this post, we’ll look at how you can streamline that process using the Zwapgrid API.

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Hamada Aljarrah
September 9, 2025

Fortnox Integration: Build vs Buy in 2025

Fortnox is the most widely used accounting system in Sweden. If you’re building a fintech, SaaS, or bank product, chances are you’ll need to connect to Fortnox data sooner or later. The question is: do you build that integration yourself, or do you buy into a platform that already solved it?

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Leo Berghald