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SSA Section 39 — Voluntary continuation after leaving employment
Social Security Act (พระราชบัญญัติประกันสังคม) — Section 39.
Plain-English Summary
A person who was insured under Section 33 and paid contributions for at least 12 months, and whose insured status ended on leaving employment, may declare to the Office within six months that they wish to stay insured. The monthly contribution base is set by ministerial regulation; payment is due monthly by the 15th of the next month, and late payment carries a surcharge of 2% a month, a part-month of 15 days or more counting as a month. Section 41 ends this status on death, return to Section 33, resignation, three consecutive months unpaid, or fewer than nine months paid within 12. Separately, after leaving employment a Section 33 insured who has met the contribution conditions keeps the illness, maternity, invalidity and death rights for six months, extendable by Royal Decree to no more than 12 months (Section 38).
Official Text
Official Thai text at the Royal Gazette / Office of the Council of State. Translation summary only.
Consult official sourceParent Statute
Social Security Act
พระราชบัญญัติประกันสังคม · B.E. 2533 (1990)
The Social Security Act B.E. 2533 (1990) established the Social Security Fund within the Social Security Office (Section 21). The Fund pays benefits to insured persons for illness or injury, childbirth, invalidity, death, child allowance, old age and unemployment (Section 54). Employees aged 15 to 60 are insured compulsorily (Section 33), and former employees and other persons may join voluntarily (Sections 39 and 40). For compulsory insureds the Government, employers and insured persons contribute (Section 46); voluntary Section 39 insureds pay with the Government at a ratio of two parts to one, and the Government's share for Section 40 insureds is capped at half of what they pay. The contribution rates, the wage base and most benefit amounts are set by ministerial regulation or Royal Decree, not in the body of the Act; the Act's annex fixes only maximum contribution rates.
The summary above is a plain-English educational paraphrase of Section 39 of the Social Security Act. It is not an authoritative translation. For the binding Thai text, consult the Royal Gazette or the Office of the Council of State. Educational use only — not a substitute for advice from a Thai-qualified lawyer.
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