Campione d'Italia is a small Italian enclave of 1.7 square kilometres entirely located within Switzerland, on the eastern shore of lake Lugano at the foot of a beautiful mountain. Here are approximately 3,000 inhabitants, including about 1,000 foreigners.
All banking is done through Swiss banks.
There is a famous Casino which generates substantial revenue and makes Campione a de facto tax haven for foreign residents. The residents of Campione enjoy a very favourable tax climate. However, Campione is only interesting for establishing personal residence, as the de facto tax benefits do not extend to companies or other legal entities based there. Furthermore, the special de facto tax advantages do not apply to Italian citizens. To obtain a residence permit, you must practically buy an apartment or house.