Short answer. Under the original Solo Parents Welfare Act, a covered child is one who is unmarried, unemployed, and not more than eighteen years old — or older than eighteen if incapable of self-support due to a mental or physical disability. But this definition has since been broadened, so treat the eighteen-year rule as a floor, not the last word.
What the law says
unmarried, unemployed and not more than eighteen (18) years of age, or even over eighteen (18) years but are incapable of self-support because of mental and/or physical defect/disability
RA 8972, Section 3 — Who Counts As Solo Parent. Read the full provision →
The age rule in the original law
Republic Act No. 8972, the Solo Parents' Welfare Act, defined the children a solo parent's benefits protect. They are those living with and dependent on the solo parent for support who are unmarried, unemployed and not more than eighteen (18) years of age. The core cutoff is eighteen. A child within that description is the one whose needs the law's parental leave, benefits, and support services were designed to serve. The definition ties coverage to actual dependency — living with and relying on the solo parent — not merely to a biological relationship.
Coverage can continue past eighteen
The same definition adds an important extension. A dependent may be covered even over eighteen (18) years but are incapable of self-support because of mental and/or physical defect/disability. So the age ceiling is not absolute. A child who cannot support himself because of a mental or physical disability remains within the protected class beyond eighteen, for as long as that incapacity keeps him dependent. This recognizes that a solo parent's caregiving burden does not end on a birthday when a child's disability makes continued support necessary.
This law has since been expanded
Important update: the original text above no longer states the full current rule. Republic Act No. 11861 (2022), the Expanded Solo Parents Welfare Act, broadened who qualifies as a solo parent, eased the service requirement for parental leave, and added benefits — including a discount and value-added tax exemption — that the older law did not contain. Read the eighteen-year definition as the floor of coverage, not the ceiling. For the benefits and qualifying conditions that actually apply today, the governing statute is RA 11861, not RA 8972 alone.
What the definition does not decide
Even under the current framework, the age and dependency description sets who counts as a covered child; it does not by itself grant any particular benefit or fix its amount. Whether a solo parent qualifies also depends on falling within the law's list of solo-parent categories and on meeting the conditions attached to each specific benefit. The definition also requires the child to be genuinely dependent and living with the solo parent. Marriage, employment, or self-sufficiency can end coverage even before eighteen, because the law keys benefits to real, ongoing dependency.