สปส.1-01 (SSO 1-01)
Employer registration form · แบบขึ้นทะเบียนนายจ้าง
Also written as Sor Por Sor 1-01, SPS 1-01, SSO1-01, สปส 1-01
Last reviewed 19 September 2026
สปส.1-01 registers a company as an employer with the Social Security Office. It must be filed within 30 days of the first employee starting work, together with สปส.1-03 for each employee.
There is no fee. Once registered, the company withholds and remits social security contributions every month, and reports joiners and leavers as they happen.
The facts
| Belongs to | Social Security Office (SSO)สำนักงานประกันสังคม |
| Where to get it | SSO area offices, or the SSO website’s forms section. |
| Source | Social Security Office, employer registration form สปส.1-01 (Thai, PDF) |
Used in
This describes what a government form is for, not how your company should fill it in. Spotted something out of date? Tell us and we will fix it.
Who files this for you, and what it costs
SSO 1-01 is part of payroll & social security. What Thai firms publish for that work: 160 to 650 a head, or 500 to 8,000 flat a month (baht), every figure linked to the firm that published it on the payroll & social security price page.
Or skip the research: get three quotes for payroll & social security, side by side, free.