Depends, actually. In Switzerland, you do write "Buße" as "Busse", despite the different pronounciation indicated with ß. The German written in Switzerland just

Depends, actually. In Switzerland, you do write "Buße" as "Busse", despite the different pronounciation indicated with ß. The German written in Switzerland just doesn't know the ß character and uses "ss". Nonetheless, you're right if you're just looking at German as written and used in Germany (And maybe Austria? Not sure how they handle ß there).