Refers to a country or territory with low or no taxes, often used by corporations or wealthy individuals to reduce tax liability.
Many multinational corporations use tax havens.
Katakana loanword for 'tax haven', more common in casual or business contexts. 税金避難所 is a direct Japanese translation, less frequent but more descriptive.
Compound of 税金 (tax) + 避難所 (shelter, refuge), literally 'tax shelter'. A calque of English 'tax haven'.