Thailand
Banking sector profile — Asia-Pacific
Data as of October 2026 • TGB Intelligence Unit
Policy rate as of 7 October 2026: 1.00% (source: Bank of Thailand)
Banking sector at a glance
Structure and performance
Thailand's banking system is concentrated in six domestic banking groups – Bangkok Bank, Kasikornbank, Krung Thai Bank, SCB X, Bank of Ayudhya (Krungsri) and TMBThanachart – whose consolidated assets ranged from THB 1.70tn to THB 4.61tn at end-2025. Deposit takers reported THB 23.6tn of assets in March 2026, about 125% of GDP. Commercial banks are licensed by the Ministry of Finance on the advice of the Bank of Thailand, which supervises them together with finance companies, credit card and personal-loan providers and the state-owned specialised financial institutions that operate alongside the commercial banks.
Profitability has come under pressure from falling interest rates and weak loan demand. Commercial banks earned THB 272bn in 2025, 3.6% less than in 2024, as net interest income declined; gains on financial instruments and investments partly offset the fall. Banking-system loans contracted 1.1% in 2025, with SME and consumer lending shrinking and large corporate loans slightly lower. By August 2026 the Bank of Thailand reported that credit growth had picked up, but mainly through lending to large corporations; SME loans were still contracting.
Balance sheets remain well buffered. The commercial banks' capital adequacy ratio was 20.9% at end-2025, up from 20.4% a year earlier, and their liquidity coverage ratio was 215.1%. Asset quality is the weaker point: the Stage 3 NPL ratio of the commercial banking system, including subsidiaries, was 2.84%, while loans with a significant increase in credit risk (Stage 2) reached 7.07% of the total. The Monetary Policy Committee continues to single out the debt-servicing capacity of SMEs and vulnerable households as the area to monitor.
The macroeconomic backdrop is soft. The Bank of Thailand cut its policy rate to 1.00% in February 2026, judging growth for 2026–27 to be below potential, and held it in June and August as growth remained low and uneven, private consumption subdued and households cautious. Low rates compress margins for deposit-funded banks, while household and SME debt burdens, competition from non-bank providers of embedded consumer finance and payments, and the approval of new virtual banks in 2025 shape the medium-term outlook for incumbents.
Structural trends
The shifts shaping banking in Thailand.
Monetary easing: the policy rate was cut to 1.00% on 25 February 2026 by a 4–2 vote, then held in June and August as growth stayed low and uneven.
Virtual banking: on 19 June 2025 the Minister of Finance approved three applicants, including SCB X with WeTechnology and KakaoBank and Krung Thai Bank with AIS and PTT Oil and Retail, to establish virtual banks, subject to a Bank of Thailand readiness assessment before licensing.
Credit contraction: banking-system loans fell 1.1% in 2025 and SME lending was still contracting in August 2026, while borrowing by large corporations drove the recovery in credit.
Basel III finalisation: revised risk-weighted asset rules are scheduled to take effect on a solo basis from 1 January 2029 and a consolidated basis from 1 January 2030.
Leading institutions
Largest banks in Thailand by total assets.
| # | Bank | Total assets (US$) | Type |
|---|---|---|---|
| 1 | Bangkok Bank | US$146.1bn | Commercial |
| 2 | Kasikornbank | US$144.6bn | Commercial |
| 3 | Krung Thai Bank | US$124.7bn | State-owned |
| 4 | SCB X | US$115.8bn | Universal |
| 5 | Bank of Ayudhya (Krungsri)Subsidiary of MUFG | US$84.0bn | Commercial |
| 6 | TMBThanachart Bank (ttb) | US$54.0bn | Commercial |
| 7 | UOB ThailandSubsidiary of UOB | US$30.0bn | Commercial |
| 8 | CIMB Thai BankSubsidiary of CIMB Group | US$17.1bn | Commercial |
Largest banks in Thailand by total assets, FY2025 audited accounts. Domestic groups as in the TGB Bank Rankings; other domestic banks from their own audited accounts; subsidiaries of foreign groups shown with their own accounts and marked. Not a ranking table. Converted at official central-bank rates for each fiscal year-end.
Supervision and capital rules
The Bank of Thailand supervises commercial banks under the Financial Institutions Businesses Act B.E. 2551 (2008), with licences granted by the Minister of Finance on its advice. Basel III minimums are 4.5% CET1, 6.0% Tier 1 and 8.5% total capital, plus a capital conservation buffer above 2.5% and a 1.0% CET1 higher-loss-absorbency charge for domestic systemically important banks; LCR and NSFR minimums are 100%. Capital charges for exposures to central counterparties and CVA risk were phased in from July 2024 at bank level and July 2025 at group level, and the final Basel III reforms are scheduled to apply from 2029 (solo) and 2030 (consolidated). Deposits are protected by the Deposit Protection Agency. Virtual banks are licensed under a Ministry of Finance notification of February 2024.
What changed in 2026
- February 2026: The Monetary Policy Committee cut the policy rate by 25bp to 1.00% in a 4–2 vote, citing below-potential growth, household and SME debt burdens and downside inflation risks.
- June 2026: The Committee held the rate at 1.00% unanimously, expecting a temporary rise in inflation from supply-side pressures and describing policy as accommodative.
- August 2026: The rate was again held at 1.00%; the Committee noted faster exports and private investment but continued contraction in SME loans and cautious household spending.
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