Employer Registration

Hiring your first employee creates more than a payroll obligation. A business may also need to register as an employer with Thailand’s Social Security Office, register eligible employees as insured persons, and comply with the Workmen’s Compensation Fund requirements.

Late registration, inconsistent employee information, or missed filing deadlines can affect employee benefits and create contribution or compliance issues for the employer.

Taxpoint provides employer and employee registration support, including document review, form preparation, filing follow-up, and practical guidance on the obligations that continue after registration.

What is employer registration?

Employer registration is the process of submitting establishment and employee information to the Social Security Office, or SSO. Once approved, the business receives an employer account number, while qualifying employees are registered as insured persons under Section 33.

The process is also connected with the Workmen’s Compensation Fund, which protects employees in cases of work-related injury, illness, disability, or death.

Although both systems are administered by the SSO, they have different purposes, contribution methods, and payment schedules.

Who must register as an employer?

In general, an employer with at least one qualifying employee must register the establishment and the employee within 30 days from the date the employee becomes eligible as an insured person under Section 33.

Certain employers, workers, or employment arrangements may be excluded by law. The business should therefore confirm the actual employment relationship before filing, particularly in cases involving directors, partners, family members, contractors, or workers with unusual employment conditions.

Why should registration be handled promptly?

• It helps eligible employees receive continuous social security protection.

• It reduces the risk of late or incomplete registration.

• It keeps employee, payroll, and accounting records consistent.

• It prepares the business for monthly contribution submissions.

• It separates Social Security Fund and Workmen’s Compensation Fund obligations correctly.

• It creates a reliable process for future employee entries, exits, and information changes.

Documents and information generally required

Document requirements may vary according to the business structure and establishment. Common requirements include:

• A current company affidavit or business registration document

• Identification documents of directors or authorized signatories

• Head-office and branch information

• Evidence of the right to use the premises, such as a lease or consent letter

• A map, workplace photographs, or signage evidence where required

• Employee information, including identification number, employment date, position, and wages

• A power of attorney where another person files on the employer’s behalf

• Employer Registration Form SSO 1-01

• Insured Person Registration Form SSO 1-03

The business name, address, tax identification number, employment date, and wage information should be consistent across all documents.

Taxpoint’s employer registration process

1. Review the business and employment arrangement

We review the business structure, employment relationship, first employment date, workplace information, and other relevant circumstances.

2. Prepare a tailored document checklist

The client receives a checklist based on the business and establishment, reducing the risk of incomplete or inconsistent documents.

3. Prepare and verify the registration forms

We prepare the relevant employer and employee registration forms and verify the information before filing.

4. Submit the application and follow up

We file through the appropriate channel and assist with questions, corrections, or additional document requests from the authority.

5. Deliver the result and explain ongoing obligations

After registration, we explain the main deadlines for employee reporting, payroll information, and contribution submission.

What must an employer do after registration?

Receiving an employer account number is only the beginning. The employer must continue maintaining and submitting accurate information.

• Register new employees: Submit Form SSO 1-03 within 30 days from the date the employee becomes eligible.

• Report employee departures: Submit Form SSO 6-09 by the 15th day of the month following the month in which employment ended.

• Report employee information changes: Submit Form SSO 6-01 within the applicable reporting period.

• Submit monthly contributions: Calculate and submit social security contributions with Form SSO 1-10, generally by the 15th day of the following month.

• Maintain payroll records: Keep wage, contribution, deduction, and payment evidence available for review.

• Report employer changes: Notify the SSO when the business name, address, branch, or other registered information changes.

Social Security Fund and Workmen’s Compensation Fund

ItemSocial Security FundWorkmen’s Compensation FundPurposeProvides statutory benefits to insured personsCovers injury or illness resulting from workContributorEmployer and employee at the applicable statutory ratesEmployer onlyPayment cycleMonthlyGenerally assessed and paid on an annual cycleCalculation basisWages within the applicable statutory wage baseWages and the risk classification of the businessOngoing recordsEmployee status, wages, and monthly contributionsAnnual wages, assessed contributions, and workplace incidents

A new employer should confirm its first-year Workmen’s Compensation Fund contribution deadline. In later years, the employer must follow the SSO’s annual contribution and actual-wage reporting schedule.

Where an employee experiences a work-related injury or illness, the employer must report the incident within the statutory period—generally within 15 days after becoming aware of the incident.

Common employer registration mistakes

• Assuming that company incorporation automatically completes SSO registration

• Waiting until an employee passes probation before registration

• Using employment dates or wages that do not match payroll records

• Reporting an employee’s departure late or applying the 30-day entry deadline to an exit notification

• Registering the wrong workplace or failing to report a branch

• Treating Workmen’s Compensation Fund contributions as monthly social security contributions

• Failing to retain submission and contribution-payment evidence

Our service scope

• Initial consultation on employer-registration obligations

• A document checklist tailored to the business

• Review of employer, establishment, and employee information

• Preparation of Forms SSO 1-01 and SSO 1-03

• Filing and application follow-up

• Guidance on post-registration deadlines

• Initial guidance on payroll and contribution records

Businesses with multiple branches, large employee groups, foreign employees, backdated registrations, or historical corrections should confirm the additional scope and document requirements before proceeding.

Service fee

Employer registration service starts from THB 3,500.

The final scope and fee depend on the number of establishments and employees, document readiness, and the specific circumstances of the business.

Start your employee compliance correctly from day one

Do not let a delayed registration become an employee-benefit, contribution, or historical-document problem. Taxpoint can help your business complete employer and insured-person registration with a clear and organized process.

Contact us for a free initial consultation before making your decision.