Koh Samui Property Return on Investment - ROI Calculator 2025

Last updated- Built by kohsamui-villas.com - Free to use

In recent years, Koh Samui’s property market has shown strong returns. While typical gross rental yields range from 6-8%, some investors have seen net returns after expenses that are often 8% upwards for rentals and 10-12.5% when factoring in some appreciation. In some cases, high-performing luxury villas have even yielded returns as high as 15-20% per year.

To get a personalized estimate of your potential returns, we invite you to use our Koh Samui Villas ROI Calculator below. This tool Estimate Net ROI, Gross ROI, Payback (years) and Monthly Cashflow for Koh Samui real estate investement—villas and condos. Test one‑click scenarios, refine assumptions, and export a clean PDF report.

104 Properties
4 Properties
40 Properties
20 Properties
3 Properties
20 Properties

Koh Samui Villas ROI Calculator

Calculate your investment returns for Samui villa rentals

55%
15%

Monthly Running Costs

฿9,500
฿4,000
฿2,500
฿3,000
฿0
Total Monthly Costs
฿19,000

💡 Breakdown

Gross Income

Mgmt & Fees

Running Costs

Net Annual :

📊 ROI by Occupancy

Occ %ROI %

Are you considering investing in property in the stunning Koh Samui, Thailand? With its tropical climate, stunning beaches, and vibrant culture, it’s no surprise that investors are flocking to this paradise. This guide will help you understand how to maximize your Return on Investment (ROI) when purchasing real estate in Koh Samui.

How to Calculate ROI for Koh Samui Property ?

Calculating ROI for your Koh Samui property is straightforward. You can use the following formula:

ROI = (Net Income / Total Investment Cost) × 100

Our calculator automates this process for you, using your specific inputs to generate a detailed report. For instance, when you input a Purchase Price of 14 million THB, with a Low Season Rate of THB 6,000 and a High Season Rate of THB 10,000, the tool provides a comprehensive breakdown. Accounting for an Expected Occupancy of 55% and Total Monthly Costs of THB 6,600, the calculator delivers a Net Annual Return of THB 1,205,600 and a compelling ROI of 8.6%.

Steps to Accurately Calculate Your ROI

  1. Calculate Gross Rental Yield: This is your annual rental income divided by the purchase price, expressed as a percentage. Typically, you can expect favorable yields in Koh Samui ranging from 6-10% for rentals.
  2. Establish Net Operating Income (NOI): This includes your rental income minus all operating expenses such as management fees, maintenance, insurance, property taxes, and periods of vacancy.
  3. Calculate ROI Using Net Figures: Take your net annual income and divide it by your total property cost (including all associated costs) to find your true ROI.

Incorporating Capital Appreciation in Your ROI

When evaluating Koh Samui real estate, it’s crucial to factor in capital appreciation, which is a key component not included in our calculator’s a-la-carte ROI analysis. For example, our tool might show a villa with an ROI of 8.6% based purely on rental income. However, if that same villa, valued at 14,000,000 THB, were to appreciate by a conservative 5% over the year (a gain of 700,000 THB), your total annual return would increase significantly. By combining the calculated rental income with the estimated capital gain, you get a more complete picture of your investment’s true potential.

Other Factors Influencing ROI

Several factors can positively or negatively impact your ROI in Koh Samui, including:

  • Mortgage interest rates
  • Maintenance costs
  • Property management fees
  • Local taxes
  • Rental demand
  • Vacancy periods

It’s essential to consider these elements thoroughly to get a realistic estimate of your returns.

Typical Gross Rental Yields in Koh Samui

For property investments in Koh Samui, expect typical gross rental yields around 8%. While some developers may advertise higher guarantees in the range of 8-10% for rentals and 10-12.5% when factoring in some appreciation.

Frequently Asked Questions (FAQs)

  • What is the average ROI for rental properties in Koh Samui?
    Typically between 6-10%, depending on various factors such as location and type of property.
  • How does capital appreciation affect my investment?
    Capital appreciation can significantly increase your overall return, factoring in both rental income and value growth.
  • Are there any hidden costs in property investment?
    Yes, consider maintenance, property management, insurance, and potential vacancy costs.

Conclusion

Understanding and calculating the Return on Investment for your Koh Samui property is essential for making informed decisions. By using the right tools and resources, you can ensure that your investment yields the most favorable returns. If you’re ready to explore properties in Koh Samui or need further assistance, contact Koh Samui Villas today to find your dream investment!

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Koh Samui Villas ROI Calculator

Calculate your investment returns for Samui villa rentals

55%
15%

Monthly Running Costs

฿9,500
฿4,000
฿2,500
฿3,000
฿0
Total Monthly Costs
฿19,000

💡 Breakdown

Gross Income

Mgmt & Fees

Running Costs

Net Annual :

📊 ROI by Occupancy

Occ %ROI %