Koh Samui Property Buying Checklist (2026 Guide for Foreign Buyers)

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Buying a villa in Koh Samui is an exciting step — whether you're relocating, investing, or looking for a tropical second home. But before signing anything, it’s essential to follow a clear and structured checklist to avoid costly mistakes. This guide provides the exact Koh Samui property buying checklist for serious buyers to secure a safe purchase in Thailand.
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Quick Summary Checklist

To buy property safely in Koh Samui, always follow these 5 steps:

  • Step 1: Find and reserve the right property
  • Step 2: Lawyer due diligence (legal checks)
  • Step 3: Sign the Sales & Purchase Agreement
  • Step 4: Transfer ownership at the Land Office
  • Step 5: Confirm all buyer costs and taxes

Why You Need a Koh Samui Property Checklist

Thailand has a unique legal framework for real estate, especially for foreign buyers.

A checklist helps you:

  • Avoid hidden legal risks
  • Confirm land title and permits
  • Understand transfer fees and taxes
  • Secure your investment in Koh Samui
  • Buy with confidence

Popular Areas to Buy Villas in Koh Samui

Most international buyers focus on high-demand locations such as:

These areas are popular for lifestyle buyers and rental investors searching for villas for sale in Koh Samui.

koh samui villa buying checklist for foreign buyers 1

✅ STEP 1 — Find a Property & Reserve It

Before reserving any property, confirm the essentials:

Once you find the right villa, the first step is making an offer.

  • Submit an offer through your agent
  • Confirm the villa matches your budget and goals
  • Request seller documents immediately

If the offer is accepted, the owner should provide:

  • Thai ID
  • Chanote land title deed
  • Building permit
  • House registration book (Tabien Baan)

Reservation Agreement (Taking the Villa Off the Market)

To secure the property, buyers usually sign a reservation agreement.

Reservation Checklist

  • Written payment terms and timeline
  • Property removed from the market
  • Deposit paid (typically 10%)
  • Deposit protected until due diligence is completed

⚠️ Never send money without a signed agreement.

✅ STEP 2 — Pay a Lawyer for Legal Due Diligence

This is the most important step when buying property in Thailand.

Legal due diligence protects foreign buyers from:

  • Title issues
  • Zoning restrictions
  • Hidden debt or mortgages
  • Illegal construction

Lawyer cost: 30,000 to 100,000 THB+ depending on complexity.

Due Diligence Checklist (Koh Samui Specific)

Your lawyer should investigate:

Land Registry & Ownership History

  • Land directory verification
  • Title deed history review
  • Land rights documentation confirmed

Execution Department & Legal Claims

  • No court disputes
  • No mortgage or debt
  • No execution orders

Zoning Rules & Construction Limit

Koh Samui has strict regulations.

The lawyer must confirm:

  • Boundaries and slope restrictions
  • Maximum building height
  • Construction percentage allowed
  • Road access legality

Buying property in Koh Samui Th…

Building Permit Verification

  • Valid construction permit
  • Villa matches approved plans
  • No illegal extensions

✅ STEP 3 — Sign the Sales & Purchase Agreement (SPA)

Once due diligence is successful, the lawyer drafts the official Sales & Purchase Agreement.

Typical legal cost: ~30,000 THB.

SPA Checklist

Your contract should include:

  • Full buyer and seller details
  • Payment schedule and deposit terms
  • Transfer date at Land Office
  • All conditions of sale
  • Buyer right to cancel if issues remain unresolved

✅ STEP 4 — Ownership Transfer at the Land Office

This is the official moment you become the legal owner.

Ownership transfer fees are often split 50/50 between buyer and seller. Buying property in Koh Samui Th…

Transfer Day Checklist

  • Buyer and seller attend the Land Office
    or sign Power of Attorney (POA)
  • Lawyer manages registration process
  • Buyer name stamped onto the back of the Chanote deed

Buying property in Koh Samui Th…

Foreign Buyer Note

In some cases, the buyer may need:

  • Thai company setup
  • Shareholder structure

Typical cost: 38,000 THB.

✅ STEP 5 — Final Costs, Taxes & Congratulations

Once the transfer is complete:

🎉 Congratulations — you are officially the new owner.

Now make sure you understand the full cost structure.

Buyer Cost Checklist

Plan for:

  • Property purchase price
  • Due diligence: 30k–100k THB
  • SPA contract: ~30k THB
  • Company setup (if needed): ~38k THB

✅ Koh Samui Property Taxes & Fees Checklist (2026)

Buying a villa in Thailand involves transfer fees and taxes ranging from 2.5% to over 6.3% of the appraised value. Buying property in Koh Samui Th…

Key Fees Summary Table

Fee TypeRateUsually Paid By
Transfer Fee2%Split 50/50
Specific Business Tax3.3%Seller (<5 yrs)
Stamp Duty0.5%Seller (>5 yrs)
Withholding Tax~1%Seller
Annual Land Tax0.02%–0.1%Owner

Final amounts are confirmed at the Land Office on transfer day.

✅ Total Buyer Cost Checklist (Quick Overview)

Plan for:

  • Property price
  • Lawyer due diligence: 30k–100k THB
  • SPA contract: ~30k THB
  • Company setup (if needed): ~38k THB
  • Transfer fees & taxes: 2.5–6.3%

🚩 Red Flags Checklist (Avoid These Mistakes)

Do NOT proceed if:

  • Seller refuses due diligence
  • Land title is not Chanote
  • No building permit exists
  • No registered road access
  • Price seems unrealistically low
  • Transfer conditions are unclear

✅ Free Download: Koh Samui Villa Buying Checklist PDF

Want the complete printable checklist used by lawyers and professional buyers?

📍 Need Help Buying Property Safely in Koh Samui?

At Koh Samui Villas, we help international buyers secure villas with:

  • Trusted legal partners
  • Verified listings
  • Full due diligence support
  • Smooth Land Office transfer guidance

👉 Explore our latest listings here: Villas for Sale in Koh Samui

FAQ — Buying Property in Koh Samui

Can foreigners buy property in Koh Samui?

Foreigners cannot own land directly, but villas can be purchased safely through leasehold or legal company structures.

What is a Chanote title deed?

Chanote is the highest and safest land title in Thailand, required for secure property ownership.

How much are transfer fees in Koh Samui?

Transfer fees and taxes usually range from 2.5% to over 6.3% depending on the seller’s ownership period.

Is a lawyer mandatory?

Not legally, but strongly recommended — due diligence is essential.

👉 Read our full buying guide:
Complete Guide to Buying a Villa in Koh Samui (2026)

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