Simple, quick, and dependable. The process is straightforward and easy to follow, even for non-German expats. As an expat, I initially found filing tax returns challenging, but with Check24, it’s incredibly simple and completely free. A key advantage of the platform is that even if you take time to gather, prepare, and upload the necessary documents, the website remains responsive and doesn’t require you to reload or start over. I’d rate it 10/10 and have already recommended Check24 to friends for handling their tax claims.