[unwind]

Sorry for being That Guy, but the word is "haven" [1], Google defines it [2] as "a place of safety or refuge".

As a Scandinavian, the idea of someone being "safe" from taxes is ... alien, to say the least. :)

[1] https://en.wikipedia.org/wiki/Tax_haven

[2] https://www.google.com/search?q=haven+dictionary