President Ferdinand Marcos was accused by 56 lawmakers on 1985 of graft, economic plunder, unexplained wealth, granting monopolies to cronies, and other crimes.
In the formal proceedings, the House of Representatives choose 11 members to act as prosecutors while the Senate would be required to have entire membership sit in as impeachment judges.
President Gloria Macapagal Arroyo faced multiple impeachment complaints in 2005, 2006, 2007, and 2008 for different accusations such as lying, cheating, and stealing during 2004 presidential election against opposition candidate Fernando Poe, Jr. among other charges.
President Benigno Aquino III was charged with four impeachment complaints in 2014 with regards to the Disbursement Acceleration Program (DAP) as it was declared unconstitutional by the Supreme Court.
In addition, the Enhanced Defense Cooperation Agreement (EDCA) between the Philippines and United States was also cited in the impeachment complaints but the House Justice Committee ultimately rejected them due to lack of substance.
In February 2025, Vice President Sara Duterte was formally impeached by the House of representatives after the complaint received a two-thirds majority vote.
She allegedly showed bias for the multi-billion-peso voters registration and information system (VRIS) project, deciding to undertake it despite the lack of funds.
COMELEC Chairman Benjamin Abalos was accused of ZTE national broadband network (NBN) deal and Hello Garci controversy but resigned eventually.
Ombudsman Merceditas Gutierrez was impeached on March 22, 2011, on charges of the office's underperformance and failure to act on several cases during then-President Gloria Macapagal Arroyo's administration.
In December 2011, 188 of the 285 members of the House of Representatives voted to transmit the 56-page Articles of Impeachment against Supreme Court Chief Justice Renato Corona.
Impeachment proceeding of Chief Justice Maria Lourdes Sereno was terminated after she was removed on May 11, 2018, via quo warranto by a special en banc session of the Supreme Court which also ruled that the Chief Justice post vacant; the petition alleged Sereno's appointment was void ab initio due to her failure in complying with the Judicial and Bar Council requirements.
Supreme Court Associate Justice Marvic Leonen was charged in 2020, of a impeachment complaint filed by Edwin Cordevilla, the secretary-general of the Filipino League of Advocates for Good Government, in relations to the alleged failure to file his Statement of Assets and Liabilities (SALN) and supposed delays in resolution of cases, including the ones pending before the House of Representatives Electoral Tribunal, but the House Justice Committee rejects the complaint due to insufficiency in form.
3019, or the Anti-Graft and Corrupt Practices Act is an impeachable offense, on which a public official found to have acquired, whether in his name or in the name of other persons, an amount of property and/or money manifestly out of proportion to his salary.
[8] Offenses which like treason and bribery, are so serious and enormous a nature as to strike at the very life or the orderly workings of the government[9] In Francisco Jr. vs. House of Representatives, the Supreme Court purposely refused to define the meaning of "other high crimes or betrayal of public trust," saying that it is "a non-justiciable political question which is beyond the scope of its judicial power."
The Impeachment proceedings shall proceed in accordance to Article XI, Section 3 of the Constitution of the Philippines, as follows: A verified complaint for impeachment may be filed by any Member of the House of Representatives or by any citizen upon a resolution or endorsement by any Member thereof, which shall be included in the Order of Business within ten session days, and referred to the proper Committee within three session days thereafter.