Home Loan Calculator — Thailand
Estimate your monthly home loan payment in THB using Thailand's typical rates, and see the full interest cost. No signup, no account needed.
Local rates & providers
Home loan rates ≈ 5–7% p.a. (MRR−2.5% to MRR−1.5%). BOT policy 1.00% (Feb 2026, lowest since 2022). Major banks: Bangkok Bank, KBank, SCB, Krungthai, TMBThanachart, Krungsri (BAY).
Reference figures, ~2026. The Bank of Thailand (BOT) sets the policy rate; your offered rate depends on your profile, deposit and the lender. Verify current rates before deciding.
Worked example
For every ฿1,000,000 borrowed at 6.00% over 20 years:
- Monthly payment: ฿7,164
- Total repaid: ฿1,719,435
- Total interest: ฿719,435
Scale this to your loan amount — e.g. ฿3,000,000 costs about 3× these figures. A larger deposit and shorter term cut the interest sharply.
A real-data rate check: home loan rates in Thailand (2026)
Thai mortgage pricing is built around each bank's own MRR (Minimum Retail Rate) or MLR (Minimum Loan Rate). On 26 February 2026, Bangkok Bank cut its lending rates after the Bank of Thailand's Monetary Policy Committee trimmed its policy rate, taking Bangkok Bank's MRR to 6.50% p.a. and its MLR to 6.35% p.a. Most Thai retail mortgages are quoted as MRR minus a margin. Advertised "headline" rates are usually lower because Thai banks front-load promotions: many products quote a discounted fixed or stepped rate of around 2.9%-3.3% per year for the first one to three years, then revert to a floating rate tied to MRR. Foreign (non-Thai) borrowers typically cannot access these promotional tiers and are usually quoted somewhere in the 5%-8% per year range from the outset.
A more realistic example: for a THB 3,000,000 home loan at a floating rate of 6.5% per year over 20 years (240 months), using M = P·r·(1+r)^n / ((1+r)^n − 1), the monthly instalment works out to M ≈ THB 22,369. Over the full term that is roughly THB 5,368,600 paid in total, of which about THB 2,368,600 is interest.
Frequently Asked Questions
How is the home loan payment calculated in Thailand?
Lenders use the reducing-balance formula P × r × (1+r)ⁿ ÷ ((1+r)ⁿ − 1), where P is the loan, r the monthly rate and n the number of months. The fin·calc tool applies the same formula with Thailand's typical rate.
What is the current home loan rate in Thailand?
As a 2026 reference, typical rates are around 6.0% per year, linked to the Bank of Thailand (BOT) policy rate. Home loan rates ≈ 5–7% p.a. (MRR−2.5% to MRR−1.5%). BOT policy 1.00% (Feb 2026, lowest since 2022). Major banks: Bangkok Bank, KBank, SCB, Krungthai, TMBThanachart, Krungsri (BAY).
How much deposit do I need?
A larger down payment lowers both your rate and total interest, and reduces the lender's risk. Most lenders also add valuation, legal and registration costs on top of the deposit.
Can I reduce the total interest?
Yes — a bigger deposit, a shorter term, and extra or early repayments all cut total interest significantly. Use the prepayment option in the calculator to see your exact saving.
What interest rate should I actually use for a Thailand home loan calculation?
For a realistic long-run estimate, use each bank's published MRR/MLR rather than a short-term promotional rate. As of late February 2026, Bangkok Bank's MRR and MOR stood at 6.50% p.a. and its MLR at 6.35% p.a. after a rate cut, so 6-7% per year is a reasonable floating-rate assumption for a standard mortgage once any introductory period ends.
Why do Thai banks advertise home loan rates as low as 2.9-3.3%?
Those figures are typically promotional first-year (or first few years) fixed or stepped rates. After the promotional period, the loan usually reverts to a floating rate linked to the bank's MRR, which recently has been around 6.5% per year at major banks such as Bangkok Bank. Foreign borrowers are generally quoted rates in the 5-8% range from the start.
Related calculators
Sources
Thairath (26 February 2026): Bangkok Bank First to Follow Bank of Thailand's Rate Cut. Expatica (2025-2026 update): Mortgages in Thailand: housing loans and interest rates in 2026. See our methodology and editorial policy for how we source and update this data.