Short answer. Under the original Act, yes — eligibility ends once you are no longer left alone with the responsibility of parenthood. But Republic Act No. 11861 of 2022 rewrote who qualifies and what they receive, so the categories and benefits in the older text must not be relied on today.
What the law says
A change in the status or circumstance of the parent claiming benefits under this Act, such that he/she is no longer left alone with the responsibility of parenthood, shall terminate his/her eligibility for these benefits.
RA 8972, Section 3 — Who Counts As Solo Parent. Read the full provision →
What the law says
living with and dependent upon the solo parent for support who are unmarried, unemployed and not more than eighteen (18) years of age
RA 8972, Section 3 — Who Counts As Solo Parent. Read the full provision →
Read this page as background, not as the current rule
The provision quoted here is the Solo Parents' Welfare Act as enacted in 2000. It was amended by Republic Act No. 11861, the Expanded Solo Parents Welfare Act of 2022, which broadened who qualifies as a solo parent and revised the benefits, replacing several sections outright. So nothing on this page should be used to work out whether you qualify today or what you are entitled to receive. For those two questions the current statute and the agency implementing it are the only safe sources, and the older list of categories is actively misleading.
The principle the original Act stated
What the older text does show clearly is the structure of the scheme, and that is worth understanding whichever law applies. A change in the status or circumstance of the parent claiming benefits under this Act, such that he/she is no longer left alone with the responsibility of parenthood, shall terminate his/her eligibility for these benefits. Solo parent status was never a permanent classification conferred once. It was a description of a present situation, and the benefits attached to the situation lasting rather than to it having once existed.
Why status was tied to the situation
The original definitions each described someone carrying parenthood alone for a stated reason — bereavement, a spouse detained or incapacitated, separation, abandonment, or a decision to raise a child without a partner. The common element was the being alone, not the event that produced it. On that logic the change that ends eligibility is whatever restores a second person to the responsibility, and it does not depend on the parent doing anything wrong. The same text also limited the children counted, as those living with and dependent upon the solo parent for support who are unmarried, unemployed and not more than eighteen (18) years of age, so children ageing out could end a claim by itself.
What to do with an actual claim
Take the current law as your starting point and treat any change in the household as something to report rather than to sit on, since benefits drawn after eligibility has ended are the kind of thing an agency later seeks to recover. Ask the office administering your benefits what changes must be notified, within what period, and what happens to a claim that lapses and is later revived. Those procedural details were reworked by the 2022 amendment, and a page reciting the 2000 text — including this one — cannot answer them for you.