On 28 May 2021, Thailand’s Ministry of Labour approved a Ministerial Regulation to provide guidelines for COVID-19 relief measures and a further reduction of Thai Social Security contribution rates1 for an additional three months in 2021.

The Ministerial Regulation is effective from 1 June 2021.


According to the Secretary-General of the Social Security Office,2 the additional relief measures for Thai Social Security should ease the financial burden on 12.9 million insured persons and 485,000 employers.  It is expected that this will provide approximately THB 20.163 billion of cash-flow into the Thai economy.  

For international assignment programs, the measures, for a brief period, should lower costs tied to an assignee’s (and where obligated, an employer’s) social security liability in Thailand. 

Reduction of Social Security Contribution Rates

The compulsory Social Security contribution rates for employers and insured persons under employment according to Section 33 (compulsory) and Section 39 (voluntary) of the Social Security Act B.E. 2533 (1990) are to be reduced for three-month salary cycles from June 2021 to August 2021.  The reduced rates will apply to the maximum salary of THB 15,000 on compulsory contributions. 

According to the mandatory Social Security contribution relief measures under Section 33, the maximum contributions for employers and employees are THB 375 per month, for June, July, and August 2021.  This is based on the maximum monthly base salary of THB 15,000 for Social Security contribution purposes.

A summary of the reduction is shown below:

Contributor Eligible period Normal period Reduced rate


under Section 33 (mandatory)

June, July, and August 2021 5% 2.5%

Insured person/Employee

under Section 33 (mandatory)

5% 2.5%

Insured person/Employee

under Section 39 (voluntary)

THB 432 THB 216

Employers should adjust their payroll processes by updating employees’ Social Security contributions withheld for the applicable three months.  Any over-contribution can be requested to be refunded.

The KPMG International member firm in Thailand will continue to monitor the situation and provide updates on any further developments. 

THB 1 = USD 0.03207

THB 1 = EUR 0.02648

THB 1 = GBP 0.02272 

The information contained in this newsletter was submitted by the KPMG International member firm in Thailand.


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