Filipino citizens who are at least 18 on election day, have lived in the Philippines for at least 1 year and in the place where they will vote for at least 6 months, and are registered (1987 Constitution, Art. V). For SK elections, registered youth voters aged 15 to 30.
Register in person at the Office of the Election Officer in your city or municipality, during the registration periods COMELEC sets. Bring a valid ID. Pending: COMELEC’s registration schedule for the 2028 elections
Filipinos abroad can register as overseas voters and vote for President, Vice President, senators and party-list representatives. Registration is through Philippine embassies and consulates and COMELEC’s Office for Overseas Voting; forms for the 2028 elections are on the COMELEC site.
Sources: COMELEC — Voter registration · COMELEC — Overseas voting · COMELEC — 2028 NLE overseas voting forms · 1987 Constitution · all sources