Steuern is the plural of Steuer, tax, and the word German speakers type when they look for help with their returns. As a verb, steuern also means to steer or control, a reading that suits tools for portfolio management and reporting. Krypto in German spelling marks the name as written for German-language readers. The .com ending gives it a commercial address independent of a single country, practical for a service covering Germany, Austria and Switzerland.
The name belongs to the Bitcoin Tax & Law DACH collection and fits projects that span borders within the German-speaking region. It suits tax calculation software, a network of advisers who share a brand, a reference guide on the treatment of digital assets in the three countries, or a newsletter for investors who live in one country and hold accounts in another.