Home Loan Refinancing Thailand: A Complete 2026 Guide

Home loan refinancing in Thailand lets you move your existing mortgage to a new Bank of Thailand-regulated lender, usually to lower your monthly instalment, reduce the total interest paid, or unlock cash from built-up equity. In 2026, with the policy rate still attractive for borrowers who have strong credit profiles, refinancing is one of the most effective ways to cut housing costs. This guide compares regulated banks, explains current rate ranges, and walks you through eligibility, documents, fees, and the full application process.

What Is Home Loan Refinancing and Why Do It?

Refinancing, sometimes called a home loan balance transfer, is the replacement of your current mortgage with a new loan. The new bank pays off your existing loan and registers a fresh mortgage on your property title. Thai borrowers typically refinance for three reasons:

• Lower interest rate: After the initial promotional period ends, floating rates can jump by 1–2%. Switching can reset a low fixed rate or reduce the margin above MRR/MOR.
• Shorten the repayment term: A lower rate plus the same monthly payment shortens the remaining loan period.
• Equity cash-out (top-up): If your property value has risen, the new bank may lend up to 80–90% of the current appraisal, letting you consolidate other debts or fund renovations.

Before you move, check your current loan agreement. Most banks charge a prepayment penalty of 1–3% if you refinance within the lock-in period, usually the first 3 years. Calculate whether the interest savings outweigh this exit fee.

Who Should Consider Refinancing in 2026?

Refinancing is not always the right choice. You are likely to benefit if:

• Your current fixed-rate promotion has ended and the floating rate is now above 4.5–5%.
• Your credit score has improved since the original loan, or your income has risen significantly.
• You have at least 3–5 years of repayments remaining, so the savings can compound.
• You want to switch from an unsecured personal loan used for property into a proper mortgage to lower the rate.
• You need liquidity for a child’s education, medical expenses, or home improvements.

On the other hand, refinancing is usually not worth it if the lock-in penalty is high, you plan to sell the property soon, or your credit bureau record has new late payments.

How to Compare Home Loan Refinancing Offers in Thailand

Do not look only at the advertised rate. The real cost of refinancing includes several components. Use these criteria to compare offers from regulated banks such as SCB, KBank, BBL, Krungsri, TTB, CIMB Thai, UOB, and Government Housing Bank (GHB).

1. Interest Rate Structure

Thai mortgage rates usually combine a fixed promotional period with a floating rate afterwards. The floating rate is quoted as a spread above the bank’s internal reference rate (MRR, MOR, or MLR). As of 2026, the typical ranges are:

• 1-year fixed rate: approximately 2.75–3.75% per year.
• 3-year fixed rate: approximately 3.00–4.25% per year.
• Long-term fixed rate: up to 5 years, around 3.50–4.75% per year.
• Post-promotion floating rate: roughly MRR/MOR minus 0.25% to plus 1.50%, often landing between 3.75–6.50% depending on customer risk.

Ask for the effective annual percentage rate (APR), not just the headline rate, because fees and insurance affect the total cost.

2. Loan-to-Value (LTV) Ratio

For a primary residence, regulated banks normally lend up to 80–90% of the appraised value. If you have a second home or investment property, the LTV may be capped at 70–80%. A lower LTV usually means a better rate.

3. Fees and Charges

Refinancing is not free. Budget for:

• Mortgage registration fee: around 1% of the new loan amount, capped at 200,000 THB.
• Stamp duty: 0.05% of the loan value.
• Appraisal fee: 2,000–5,000 THB depending on property size.
• Fire insurance: annual premium based on sum insured.
• Prepayment penalty: 1–3% to the old bank if you refinance within the lock-in period.
• Processing / legal fees: some banks waive these as a promotion; others charge 1–3%.

4. Debt Service Ratio (DSR)

Banks prefer total monthly debt payments, including the new mortgage, to stay below 35–45% of gross monthly income. High earners or public-sector employees may be allowed slightly higher ratios.

5. Lock-In Period and Flexibility

Some packages offer a lower fixed rate but require you to stay for 3–5 years. If you plan to make lump-sum prepayments, look for a loan that allows partial prepayments without penalty.

Eligibility Requirements for Refinancing in Thailand

Regulated banks share broadly similar criteria, although each lender sets its own credit policy.

• Age: Usually 20–65 years at application, with the loan ending by age 70–75.
• Employment: Salaried employees should have at least 6–12 months in the current job. Self-employed borrowers usually need 2–3 years of audited accounts or tax filings.
• Minimum income: Most banks require 15,000–25,000 THB per month for standard mortgages. For higher LTV or cash-out, 30,000+ THB is safer.
• Credit record: No recent defaults, no write-offs, and ideally no late payments in the last 12 months.
• Property title: The house or condominium must have a clean title deed (chanote) or a saleable lease/ownership document.

Documents Required for Home Loan Refinancing

Prepare both personal and property documents. A complete file shortens approval time and can improve the rate you are offered.

Personal Documents

• National ID card and household registration (Tor Ror 13).
• Salary slips for the last 3–6 months.
• Bank statements for the last 3–6 months.
• Tax filing forms (Por Ngor Dor 90, 91, or 50 Tawi as applicable).
• Employment certificate or business registration.
• National Credit Bureau (NCB) report, usually requested by the bank.

Property and Loan Documents

• Original title deed (chanote) or condominium title.
• Current mortgage statement from the existing bank.
• Copy of the original sales and purchase agreement.
• Fire insurance policy.
• Appraisal or valuation report if you have a recent one.
• Construction permit and building plans, if refinancing a newly built house.

Bank and Product Highlights for 2026

Only regulated banks and licensed financial institutions are listed below. Rates and promotions change frequently, so always request a personalised quotation.

Siam Commercial Bank (SCB)

SCB offers competitive refinancing packages for both houses and condominiums. Its digital mortgage platform can pre-screen applicants quickly, and fixed-rate promotions are common for the first 2–3 years.

Kasikornbank (KBank)

KBank is popular among salaried customers and KBank account holders. Refinancing campaigns often include waived processing fees and bundled home, fire, and life insurance. Check the post-promotion rate carefully because the spread after the fixed period can vary.

Bangkok Bank (BBL)

Bangkok Bank provides flexible refinancing with a reputation for handling high-value properties and self-employed borrowers. Their relationship-based pricing can be attractive if you already have deposits or investments with the bank.

Bank of Ayudhya (Krungsri)

Krungsri frequently runs refinancing promotions with low fixed-rate periods. Its branch network is strong, and the bank offers convenient cash-out top-up loans for renovation or debt consolidation.

TMBThanachart Bank (TTB)

TTB has positioned itself as a digital-first retail bank. Refinancing customers can benefit from fast document review and online appointment scheduling. Promotional rates are often marketed to younger first-time refinancers.

CIMB Thai and UOB

Both CIMB Thai and UOB offer straightforward refinancing packages with transparent fee structures. They are worth comparing when you want a shorter lock-in period or prefer English-language service support.

Government Housing Bank (GHB)

GHB is a state-backed bank focused on housing finance. Its rates can be particularly attractive for middle-income borrowers, government employees, and applicants refinancing older loans. Eligibility is sometimes more flexible, but documentation can take longer than private banks.

Step-by-Step Application Process

1. Review your current loan contract: Confirm the outstanding balance, remaining term, current interest rate, and any prepayment penalty or lock-in period.
2. Check your credit report: Request your NCB record before applying. Dispute any errors and settle small overdue amounts.
3. Estimate your property value: Use recent transacted prices in your neighbourhood or get a preliminary valuation. This helps you calculate LTV and cash-out potential.
4. Request 2–3 quotations: Contact at least three regulated banks. Compare fixed rate, floating rate, fees, lock-in, and prepayment rules.
5. Submit documents: Provide personal and property documents to your chosen bank. The bank will run an internal credit check and order a formal appraisal.
6. Receive conditional approval: If approved, the bank will issue an offer letter stating the approved amount, interest rate, and conditions.
7. Pay off the old loan: The new bank will disburse funds directly to the original lender to settle the existing mortgage.
8. Register the new mortgage: A land-office appointment is arranged to discharge the old mortgage and register the new mortgage on the title deed.
9. Start new instalments: After registration, your new loan begins. Set up auto-debit to avoid late payments.

Pros and Cons of Refinancing Your Home Loan

Advantages

• Potential interest savings over the remaining loan term.
• Lower monthly instalments, improving monthly cash flow.
• Ability to consolidate higher-interest debt through a cash-out top-up.
• Access to better loan features such as partial prepayment or flexible repayment schedules.
• Opportunity to switch to a lender with better digital service or branch access.

Disadvantages

• Upfront costs including mortgage registration, stamp duty, appraisal, and insurance.
• Prepayment penalty from the existing bank during the lock-in period.
• A new credit check could temporarily affect your credit score.
• The process can take 4–8 weeks, sometimes longer for leasehold or condominium refinancing.
• If you extend the loan term to lower payments, you may pay more total interest.

Tips to Get the Best Refinancing Deal in 2026

• Compare the total cost, not just the first-year rate. A very low fixed rate can hide high fees or a steep floating rate later.
• Maintain a clean payment record. Even one late credit-card payment can reduce your bargaining power.
• Reduce your LTV. If you can make a small principal payment before refinancing, the lower LTV may unlock a better rate.
• Leverage your salary account. Banks often give relationship discounts to customers whose salary is deposited with them.
• Ask for fee waivers. Processing fees, appraisal fees, and fire insurance can sometimes be waived or rebated during campaigns.
• Get everything in writing. Verbal promises from sales staff should be confirmed in the offer letter.

Soft Call-to-Action

Finding the best home loan refinancing deal in Thailand takes more than a quick Google search. Interest rates, fees, and eligibility rules change by bank and by borrower profile. We recommend comparing personalised offers from Bank of Thailand-regulated lenders such as SCB, KBank, BBL, Krungsri, TTB, CIMB Thai, UOB, and GHB before making a decision. Submit your basic information today to receive matched refinancing quotations and take the first step toward lower monthly housing costs.

Frequently Asked Questions

What is the typical interest rate for home loan refinancing in Thailand in 2026?

Promotional fixed rates in 2026 generally range from 2.75–4.75% per year depending on the fixed period, while post-promotion floating rates are often 3.75–6.50% based on the bank’s MRR/MOR reference and the borrower’s credit profile. Always ask for the effective APR and compare fees.

Which banks are best for home loan refinancing in Thailand?

Only consider Bank of Thailand-regulated banks such as SCB, KBank, BBL, Krungsri, TTB, CIMB Thai, UOB, and Government Housing Bank. The best choice depends on your income, LTV, credit record, and whether you want a top-up or the lowest post-promotion rate.

What documents do I need to refinance my home loan in Thailand?

You will need your ID card, household registration, salary slips for 3–6 months, bank statements, tax forms, employment certificate, your current mortgage statement, title deed, fire insurance policy, and a property appraisal. Self-employed borrowers should also provide audited accounts and business registration.

How long does home loan refinancing take in Thailand?

The process usually takes 4–8 weeks, including credit approval, property appraisal, and land-office registration. It can take longer for leasehold properties or condominiums with complex title documents.

Can I refinance if I have a low credit score or late payment history?

It is possible but more difficult. Banks prefer no late payments in the last 12 months. If your credit score has dropped, you may face a higher interest rate, lower LTV, or rejection. Settling overdue debts and waiting 6–12 months before applying can improve your chances.