Sofia wins overall by ~4% (COL index)
Cost of living: Koh Samui vs Sofia (2026)
A $75,000 salary in Koh Samui buys roughly what $72,000 does in Sofia (COL-adjusted). Your real trade-offs are taxes, rent, and day-to-day prices — we break them down and personalize below.
Your move simulator
Slide to match your household — estimates combine take-home, rent, and groceries.
Estimated annual swing
+$6,540/yr
Favoring Koh Samui for this income & household (illustrative).
With the extra $545/mo, you could pay down a $15,000 card balance in ~28 months and still keep ~$65/mo for dining out.
Studio rent/mo
1BR rent/mo
2BR rent/mo
Median home price
Groceries index (100 = US avg)
Budget meal (1 person)
Mid-range dinner (2)
Monthly transit pass/mo
Gas price/gal
Car insurance/mo
Monthly utilities bundle/mo
Internet/mo
Median household income/yr
State income tax%
Sales tax (combined)%
Movie ticket
Gym membership/mo
Beer at restaurant
Overall COL index (100 = US avg)
Walk score / 100
| Category | Koh Samui Surat Thani Province | Sofia Sofia City Province | Who wins | Your impact at $75K |
|---|---|---|---|---|
| 🏠 HousingQ1 2026 | ||||
| Studio rent/mo | $450 | $380Wins | Sofia wins −$70/mo | $840/yr saves in Sofia |
| 1BR rent/mo | $620 | $540Wins | Sofia wins −$80/mo | $960/yr saves in Sofia |
| 2BR rent/mo | $950 | $820Wins | Sofia wins −$130/mo | $1,560/yr saves in Sofia |
| Median home price | — | — | — | — |
| 🛒 Food & GroceriesQ1 2026 | ||||
| Groceries index (100 = US avg) | — | — | — | — |
| Budget meal (1 person) | $5Wins | $7 | Koh Samui wins +$2/mo | — |
| Mid-range dinner (2) | $20 | $16Wins | Sofia wins −$4/mo | — |
| 🚌 TransportationQ1 2026 | ||||
| Monthly transit pass/mo | — | — | — | — |
| Gas price/gal | — | — | — | — |
| Car insurance/mo | — | — | — | — |
| ⚡ UtilitiesQ1 2026 | ||||
| Monthly utilities bundle/mo | $70Better | $75 | Koh Samui wins +$5/mo | — |
| Internet/mo | $28 | $20Wins | Sofia wins −$8/mo | — |
| 💰 Income & TaxesQ1 2026 | ||||
| Median household income/yr | — | — | — | — |
| State income tax% | 0.0%Wins | 10.0% | Koh Samui wins +10.0 pp | $7,500/yr saves in Koh Samui |
| Sales tax (combined)% | 7.0%Wins | 20.0% | Koh Samui wins +13.0 pp | — |
| 🎬 LeisureQ1 2026 | ||||
| Movie ticket | — | — | — | — |
| Gym membership/mo | $35 | $25Wins | Sofia wins −$10/mo | — |
| Beer at restaurant | — | — | — | — |
| 📊 OverviewQ1 2026 | ||||
| Overall COL index (100 = US avg) | 50 | 48Better | Sofia wins -2 | — |
| Walk score / 100 | 35 | 68Wins | Sofia wins +33 more/yr | — |
Complete the Picture
While you’re comparing — don’t leave money on the table.
Tax-smart rewards
Turn ~$7,500/yr tax differences into cash back
Sofia fits your move math — cash-back cards stack on groceries, gas, and dining you're already doing.
Home + auto bundle
New state — new insurance rates
Bundling often saves hundreds/yr. Compare before you sign a lease in Sofia.
High-yield savings
Grow your move fund while you shop for homes
Don't let relocation cash sit at 0% — put it to work until closing day.
More ways to compare this move
Ready to move?
Open the full interactive tool to add up to 5 cities, drop in your salary, and see rent burden.
Open full interactive toolComplete the Picture
While you’re comparing — don’t leave money on the table.
If cash is tight
Knock down high-interest debt first
A move has upfront costs — a balance transfer or personal loan can lower APR while you settle in.
If you're saving big
Invest the surplus on autopilot
Brokerages and robo-advisors help you dollar-cost average into the market with your new slack.
Frequently asked questions
Is Koh Samui cheaper than Sofia?
No. Sofia is 4% cheaper than Koh Samui based on overall cost of living indices (48 vs 50, where 100 = US average).
What is the average rent in Koh Samui vs Sofia?
As of Q1 2026, the median 1-bedroom rent in Koh Samui is $620/month and in Sofia is $540/month. Koh Samui is more expensive by 15%.
How much do I need to earn in Sofia to match a $75,000 salary in Koh Samui?
To maintain a similar lifestyle, you would need approximately $72,000/year in Sofia to match a $75,000 salary in Koh Samui. This estimate is based on overall cost of living indices and does not account for individual spending patterns.
Which city has lower taxes — Koh Samui or Sofia?
Koh Samui has the lower state income tax rate at 0% vs 10%. Koh Samui has no state income tax at all, which can save thousands of dollars per year depending on your income. Note that sales tax and local taxes also vary — see the full breakdown in the table above.
Is it worth moving from Koh Samui to Sofia?
It depends on your priorities. Sofia offers lower overall costs and tax advantages, but both cities have different job markets, weather, and lifestyle trade-offs. Use the comparison table above to evaluate rent, groceries, transportation, and income potential side by side based on your specific budget.
Data sourced from Zillow, BLS, Numbeo, Tax Foundation, and US Census ACS · Updated Q1 2026 · For general guidance only
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