Retire Premiumly in Koh Samui, TH (2026)
2BR home, regular dining out, two vacations/year, newer car. In Koh Samui (COL 50), this costs $3,125/month — a $38K less than the US average.
Monthly budget breakdown
Estimated monthly expenses for a premium retirement in Koh Samui (COL-adjusted from national baseline).
| Category | Monthly | Annual | % of budget |
|---|---|---|---|
| Housing | $1,031 | $12,372 | 33% |
| Food | $469 | $5,628 | 15% |
| Healthcare | $438 | $5,256 | 14% |
| Transport | $375 | $4,500 | 12% |
| Leisure | $438 | $5,256 | 14% |
| Misc | $375 | $4,500 | 12% |
| Total | $3,125 | $37,500 | 100% |
How long to save $938K?
Time to reach your nest egg target investing at 7% annual return (S&P 500 historical avg).
| Monthly savings | Years to retire | Retirement age (start 30) |
|---|---|---|
| $1,000/mo | 27 yrs | Age 57 |
| $2,000/mo | 19 yrs | Age 49 |
| $3,000/mo | 15 yrs | Age 45 |
| $5,000/mo | 11 yrs | Age 41 |
| $8,000/mo | 8 yrs | Age 38 |
Koh Samui vs US average — Premium retirement
Other retirement tiers in Koh Samui
Frequently asked questions
How much does a premium retirement cost in Koh Samui?
A premium retirement in Koh Samui costs approximately $37,500/year or $3,125/month — based on a 50 cost-of-living index (US avg = 100). Using the 4% safe withdrawal rule, you need a nest egg of about $938K.
How long will it take to save $938K for retirement in Koh Samui?
Saving $2,000/month at a 7% average annual return would take roughly 19 years to accumulate $938K. At $3,000/month, it would take about 15 years. These estimates assume consistent investing in a diversified portfolio.
What is the biggest expense in a premium retirement in Koh Samui?
Housing is the largest expense at roughly 33% of the budget ($1,031/month). Healthcare ($438/month) is the second-largest category. TH has no state income tax, which reduces your overall tax burden in retirement.
4% safe withdrawal rule · 7% annualized return assumption · COL-adjusted from BLS data · Q1 2026 estimates