BC IT AG

A Basel-based tax and accounting firm that specializes in expat tax declarations, meaning they handle the unusual deductions and cross-border filing that personal accountants often miss. They operate in English, German, and French, so language barriers don't slow your return prep.

Pick them if you're self-employed, a contractor, or have rental income outside Switzerland that needs Swiss tax coordination. For a simple W-2 style employee situation, you might find cheaper alternatives, but if your finances cross borders, their expertise justifies the cost.