Kamui Kobayashi is currently homeless, the Japanese driver has admitted.
He told the Swiss Sonntagsblick newspaper that he recently moved out of his Paris apartment.
Asked by reporter Roger Benoit if he will soon call Switzerland home, the 24-year-old Sauber driver answered: "That would be nice. But I'm still thinking about where to live."
Asked what he meant, Kobayashi explained: "I have no house, no home. I don't know where I should live.
"I have no base at the moment except for a big suitcase. At the moment I'm going from hotel to hotel. I'm always on the move anyway.
"But now I need to ask myself a question -- who do I pay tax to now?" he joked.
Kobayashi admitted that Monaco is not his favourite circuit, perhaps because it does not allow him to express his now famous skill for overtaking.
Asked how big his loyalty is to Peter Sauber, he answered: "Very big, because he had faith in me. Because I owe him almost everything for being in F1.
"Also, because I fulfil my contracts right up to the last day."