How Employers Can Register Employees for Social Security Online

Employers can register employees for social security online through the www.sso.go.th “Establishment” section. Employers must first register for online transactions (Form SSO.1-05) ) once. They can then submit an insured-person registration (Form SSO.1-03) ) online whenever a new employee joins. The law requires registration within 30 days from the employment start date.

Table of Contents:

How Employers Can Register Employees for Social Security Online
Why Must Employers Register Employees for Social Security?
When Must Employers Register Employees for Social Security?
How Employers Can Apply for Online Transactions
How Employers Can Register Employees for Social Security Online
Summary of Online Social Security Registration for Employers
FAQ: Frequently Asked Questions About Social Security Registration

Why Must Employers Register Employees for Social Security?

Submitting social security information online or registering employees for social security online is a mandatory responsibility for every employer under the Social Security Act B.E. 2533 Failure to register an employee, thereby preventing the employee from becoming an insured person, constitutes an offense. The penalty is imprisonment for up to 6 months, a fine of up to 20,000 baht, or both.

When Must Employers Register Employees for Social Security?

Employers are required to register employees for social security. The relevant conditions are as follows:

An employer with one or more employees must register both the establishment and its employees within 30 days of hiring.
Whenever a new employee is hired, the employer must register that employee within 30 days of the employment start date.
When an employee resigns, the employer must remove the employee from social security and state the reason for termination. This must be reported by the 15th of the following month so contributions can be deducted and remitted correctly.
If an employer pays insufficient social security contributions, a surcharge of 2% per month applies to the outstanding amount.

How Employers Can Apply for Online Transactions

Now that you understand the details and importance of social security registration, the next section explains how employers can submitsocial security information online . Employers must first register for online transactions with the Social Security Office by following these steps:

Steps for Employers to Register for Online Transactions

1. Visit the Social Security Office website at www.sso.go.th and select “Establishment”

2. Select “Apply for Online Transactions”

3. The terms and conditions will appear. Tick the checkbox, then click “Continue”

4. Complete all required information to register Form SSO. 1-05, then click “Continue”

5. The system will email the registration form (SSO. 1-05) to the registered address. The employer must print it and submit it, together with all required documents, to the specified Social Security Office.

6. Once the Social Security Office approves the employer’s online transaction account request, the system will email the username and password to the registered address.

7. At the first login, the system will require the employer to change the password. Enter the existing password received by email and the desired new password, then click Save. The employer can then conduct transactions online.

After completing the online transaction registration, employers can log in and select various registration services, such as registering an insured person, reporting an insured person’s commencement of employment, reporting the end of insured status, updating information, orremitting contributions , among others.

How Employers Can Register Employees for Social Security Online

Employers can conveniently register employees as insured persons online. The process is divided into two cases: new employees who have never been registered for social security and new employees who have previously had medical-care coverage.

Steps for Online Social Security Registration: New Employees Who Have Never Been Registered

1. Visit the Social Security Office website at www.sso.go.th and select “Establishment”

2. Select the “Insured Person Registration” menu, then enter your username and password.

3. Select “Register an Insured Person/Report Commencement of Employment (SSO. 1-03)” , select the establishment branch for the registration, then click “OK”

4. Enter the insured person’s details, family status, and preferred medical facility. To register more than one person, click “Next Insured Person” to enter the next person’s information. When all details are complete, click “Continue”

5. The system will display the information for review. Once verified, click “Confirm and Save”

6. The system will confirm that the information has been saved and email the insured-person registration details for Form SSO. 1-03.

Steps for Online Social Security Registration: New Employees Who Have Previously Had Medical-Care Coverage

1. Visit the Social Security Office website at www.sso.go.th and select “Establishment”

2. Select the “Insured Person Registration” menu. When the insured-person registration screen appears, select “Register a Person Who Previously Had Medical-Care Coverage” , select the establishment for the registration, then click “OK”

3. Enter the national ID number of the insured person to be registered. The system will retrieve and display the person’s information. Select the new employment start date, then click “Continue”

4. The system will display the information for review. To make changes, click “Back to Previous Page” . The system will return to the previous page so the information can be edited. If the information is correct, click “Continue” . The system will display the saved information and email confirmation of the insured-person registration under Form SSO. 1-03/1.

Summary of Online Social Security Registration for Employers

Online social security registration allows employers to complete the process more conveniently and quickly. Employers must first register once for online transactions using Form SSO.1-05 . They can then submit an insured-person registration using Form SSO.1-03 whenever a new employee joins, within 30 days of the employment start date. Employers should ensure that employees receive all applicablesocial security benefits to protect the interests of both employees and employers and strengthen employee confidence in the organization.

FAQ: Frequently Asked Questions About Social Security Registration

Q: Must probationary or temporary employees be registered for social security?

A: Yes. The law considers whether the person is an employee under an employment contract, not whether the probationary period has been completed. Employers must therefore register the employee from the first day of work within 30 days, just like a permanent employee.

Q: If an employer has not yet received a username and password from the Social Security Office, how can the employee be registered within 30 days?

A: While waiting for account approval, the employer may submit Form SSO.1-03 in paper form at the local Social Security Office to meet the 30 -day deadline, then use the online system for subsequent submissions. Employers should therefore register for online transactions before hiring new employees.

Q: How can incorrect registration details, such as the employment start date or medical facility, be corrected?

A: Log in and use the menu for updating insured-person information. If the entry has already been saved and cannot be edited in the system, contact the local Social Security Office where the establishment is registered to request a correction.

Q: If an employee works for multiple employers, must every employer register the employee?

A: Every employer is legally required to register its own employees. Contribution remittance and insured-person benefits in cases involving multiple employers are subject to specific conditions, so employers should consult the Social Security Office before proceeding.

Q: What happens if an employer does not report an employee’s departure after resignation?

A: The system will continue to count that employee as an insured person of the establishment, causing the contribution amount to differ from the actual number of employees. If contributions are underpaid, a surcharge of 2 % per month will apply to the outstanding amount. Employers should therefore report every departure within the required deadline.

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