Which country is most expensive in the world Top 10 most expensive country in the world : Monaco is often cited as the most expensive country in the world, based on its ultra-high real estate prices, demand for luxury goods of all kinds — and that it’s known as a “billionaire’s playground.” Switzerland also ranks as the absolute most expensive country in general cost of living (apartments, groceries, services).
Top Most Expensive Countries (2025–2026):
Monaco. Space is limited and demand — off the charts, making rent and property prices — extraordinarily high.
Switzerland: Always among the three most expensive cities, these two offer some of the highest prices for hospitality and dining.
Cayman Islands : Import dependency and luxury tourism driving high cost of living
Iceland: Wealthy people come through here with [flashy cars and] expensive purchasing power.
Singapore: Cost of living; transport and imported goods expensive
Norway & Denmark: Never too far off the top of this list owing to high taxes and costs
The last is high-cost countries that have (in some cases) limited premium real estate, like Monaco and the Cayman Islands, and where salaries are high or quality of life is a factor.
If you’re trying to pin down the “most expensive” country, it depends on whether you mean for a resident to live there or for a traveler to visit. Based on the 2026 Global Cost of Living Index, many are either island nations or European hubs that command top positions because of expensive import prices, high-end real estate and from strong currencies.