How is the monthly mortgage payment calculated?

The monthly payment is calculated using the PMT formula: M = P × [r(1+r)ⁿ] / [(1+r)ⁿ - 1], where P is the loan principal, r is the monthly interest rate (annual rate ÷ 12), and n is the total number of months (years × 12).

What income do I need to qualify for a home loan in Thailand?

Most Thai banks require that your monthly payment not exceed 30–40% of your net income. For example, a monthly payment of 15,000 THB typically requires a monthly income of at least 40,000–50,000 THB.

What is MRR in Thailand?

MRR (Minimum Retail Rate) is the minimum floating interest rate Thai commercial banks charge their best retail customers. Most home loans are referenced to MRR, currently around 6.5–7.0% p.a. for major commercial banks.

What loan term should I choose?

Most borrowers choose 20–30 years. A longer term means lower monthly payments but more total interest paid. Choose a term where your payment stays below 30–35% of your monthly income.

How much down payment is required for a home in Thailand?

Thai banks typically require a down payment of 10–20% of the property value. A larger down payment reduces your loan amount, total interest, and improves approval chances.

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Thailand Home Loan Calculator

Calculate monthly payments, total interest, and a full amortization schedule for any Thai bank loan.

Last updated: May 2025

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📋 Loan Details

Loan Amount (THB)

e.g. 3,000,000 THB (3 million baht)

Interest Rate (% per year)

Thai bank MRR rates are typically 5.5–7% p.a.

Use Step Rate (promotional rate for initial years)

Promo Rate (% p.a.)

Standard Rate (% p.a.)

Promo Period (years)

Promotional rate for the initial years, then switches to standard MRR-referenced rate for the rest of the term.

Loan Term (30 years)

Most Thai banks allow up to 30–40 years.

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Fill in the details and click Calculate
to see your results.

📈 Results

Estimated Monthly Payment

—

Loan Principal —

Total Interest Paid —

Total Amount Paid —

Interest / Principal Ratio —

Principal Interest

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💡 Extra Payment Simulator

Enter a monthly extra payment to see how much interest you can save and how much sooner you can pay off the loan.

Extra Payment / Month (THB)

📅 Amortization Schedule (First 24 months)

Month	Payment	Principal	Interest	Balance

* Figures are estimates only. Actual rates may vary by bank and are subject to change.

How to Use This Calculator

Enter three values: your loan amount (how much you want to borrow), the annual interest rate (check your bank's current MRR rate), and the loan term in years. Click Calculate to get your results instantly.

Formula Used (PMT)

This calculator uses the standard fixed-installment (equal payment) formula:

M = P × [r(1+r)ⁿ] / [(1+r)ⁿ - 1]

M = Monthly payment
P = Principal (loan amount)
r = Monthly interest rate (annual rate ÷ 12)
n = Number of months (years × 12)

Thai Bank Home Loan Rates (2025–2026)

Thai banks typically use a floating rate referenced to MRR (Minimum Retail Rate). Current approximate ranges:

Major commercial banks: MRR around 6.5–7.0% p.a.
Government Savings Bank / GH Bank: around 5.75–6.25% p.a.
Promotional period (first 3 years): may be as low as 3.5–4.5% p.a.

Tip: Calculate both the promotional rate and the standard rate to see the full picture over the life of the loan.

Home Loan Planning Tips

Monthly payment should not exceed 30–35% of your gross monthly income.
A 10–20% down payment significantly reduces your loan amount and total interest paid.
Making extra principal payments early in the loan term has the greatest impact on reducing total interest.
Compare offers from at least 3 banks before committing.

🏠 Thailand Home Loan Calculator