Head to head
Gustavia vs Christophe Harbour.
Christophe Harbour leaves about $442K more of a $1M income in hand each year than Gustavia, on the Patrician.ch 2026 model. 🇫🇷 St Barths against 🇰🇳 St Kitts and Nevis, compared on tax, residence, cost and the life.
In short, current to October 2026
- On $1,000,000 of income, Gustavia takes an effective 44% and Christophe Harbour takes 0%, so Christophe Harbour leaves about $442K more in hand each year on the Patrician.ch 2026 model.
- On a capital gain realized after residence begins, Gustavia charges 35% and Christophe Harbour charges 0%. On a $5,000,000 event that is a difference of about $1.8M.
- St Barths operates a special regime for arriving foreigners: For the first 5 years a new resident is treated as a French tax resident and pays French income tax on worldwide income. From the sixth year St Barths tax domicile applies, with no income tax and French tax only on French source income. Christophe Harbour is modeled with none.
- Inheritance, what a child pays: yes, above €150,000 in Gustavia, nothing in Christophe Harbour.
- Route in: Gustavia by Founder & talent. Christophe Harbour by Citizenship by investment.
- Cost of the life is 132 in Gustavia against 70 in Christophe Harbour on the Patrician.ch index where Zurich is 100, and safety 9 against 6 of 10. Both are Patrician.ch editorial indices scored by us, not published statistics.
Source: the Patrician.ch board, an original ranking of 100 residence addresses across 47 countries and territories. Tax rates, thresholds and routes are sourced. Cost, safety, schools, sun and beauty are Patrician.ch editorial indices. Figures current to October 2026. Updated . Cite as: Patrician.ch, Gustavia (St Barths) vs Christophe Harbour (St Kitts): tax, residence and cost 2026, patrician.ch/compare/st-barths-vs-christophe-harbour/, October 2026.
