How the Supreme Court tightened impeachment rules


For the Supreme Court, time is of the essence on impeachment.
This is obvious from how the justices nullified last year's impeachment complaint against Vice President Sara Duterte, and how they argued that the House of Representatives failed to act on time to ensure that the impeachment was successful.
The key point of contention was the term "initiated." Under the Constitution, no impeachment proceedings can be “initiated” against a public official “more than once” in one year. Since 2003, there only used to be a single way to read that provision. The court, in its latest ruling, provided two new ways to do so.
Let's first look at the original reading.
Under a 2003 Supreme Court ruling, the impeachment is only deemed initiated if:

FILED/

ENDORSED

REFERRED

CALENDARED

by a citizen

and/or a House member

in the order of business by the House

to a House committee

by a citizen

and/or a House member

FILED/

ENDORSED

in the order of business by the House

CALENDARED

REFERRED

to a House committee

The original reading prescribes that these three steps — filed/endorsed, calendared and referred to a House committee — be all fulfilled for an impeachment to actually be initiated.
In its January 2026 ruling however, the Supreme Court said a complaint is also initiated when:

filed and endorsed but not calendared within 10 session days and not referred 3 days thereafter or...

FILED/

ENDORSED

REFERRED

CALENDARED

it is not transmitted to the Senate for trial before Congress adjourned sine die.

FILED/

ENDORSED

SENATE

filed and endorsed but not calendared within 10 session days and not referred 3 days thereafter or...

FILED/

ENDORSED

CALENDARED

REFERRED

it is not transmitted to the Senate for trial before Congress adjourned sine die.

FILED/

ENDORSED

SENATE

The court essentially lowered the bar to trigger the initiation of an impeachment proceeding. It removed the option for the House of Representatives to delay or disregard a duly filed and endorsed impeachment without the risk of triggering the one-year impeachment ban.
Under the Constitution, there are two ways an impeachment can be filed at the House of Representatives. Observers colloquially call them the “long” and “fast track” methods. Under the long method, a complaint undergoes an approval process like a bill: the complaint is filed, endorsed, referred to and deliberated on by a House committee, and should secure approval from a third of the House membership.
The “fast track” method, meanwhile, cuts the process if the complaint secures the approval of at least a third of the House upon filing. When that happens, the court said the impeachment complaint does not need to be calendared and referred, and immediately goes straight to the Senate for trial.

How an impeachment complaint should go through the House

Long method

“Fast track” method

Impeachment complaint filed and endorsed

Impeachment resolution approved by 1/3 of House members

within 10 days

The complaint is calendared in House business

within 3 days

The Supreme Court said the House can course its resolution through the committee, but it is not required to do so.

Referred to a House committee

within one congress session

Complaint passes House committee

Complaint passes the House plenary

Complaint goes to Senate

Long method

“Fast track” method

Impeachment complaint filed and endorsed

Impeachment resolution approved by 1/3 of House members

within 10 days

The complaint is calendared in House business

House can course its resolution through a committee, but it is not required.

within 3 days

Referred to a House committee

Complaint passes House committee

within one congress session

Complaint passes the House plenary

Complaint goes to Senate

In the past, when impeachment complaints under the "long" route were not calendared within 10 session days and referred to a committee three days after, the complaints merely "die", but they did not trigger the one-year ban and succeeding complaints were allowed in the same year.
That was how lawmakers treated Duterte's impeachment. There were four impeachment complaints filed on different dates. The House did not act on the first three complaints filed in December 2024 until the chamber went on break during the holidays. When they resumed session in February 2025, legislators approved a fourth complaint through the "fast track" method and "archived" the first three complaints. Under the 2003 Supreme Court decision, the entire thing was supposed to stand legal scrutiny because none of the first three complaints reached committee referral.
But Duterte challenged the matter before the Supreme Court and argued that the House, for not acting on the first three complaints, violated the one-year ban against her impeachment. The Supreme Court, which only acts when petitioned to, agreed and set a new precedent in doing so.
Indeed, determining when an impeachment is initiated is important because it triggers the one-year ban on impeaching the same official. For concerned citizens and lawmakers, the constitutional ban is a huge roadblock in seeking accountability from top public officials like the president, vice president and even Supreme Court justices, who by law, can only be removed from office through impeachment.
For the court, however, the ban is a due process mechanism for the accused.
History shows, however, that the timeline of previous impeachment efforts have largely been compliant with this view of the latest Supreme Court ruling.
For instance, impeachment complaints against former Ombudsman Merciditas Gutierrez and elections chair Andres Bautista were both calendared in the House order within three session days. The same complaints were referred to the House justice committee within two to three session days.

Before Duterte, past impeachments aligned with ruling timeline

Placed in House

order of business

Referred to

a House committee

Official

2 session days

3 session days

Ombudsman Merciditas Gutierrez

3

Elections chair Andres Bautista

3

3

Chief Justice Maria Lourdes Sereno

3

Placed in House order

of business

3 session

days

Merciditas Gutierrez

Andres Bautista

3

Maria Lourdes Sereno

3

Referred to a House

committee

Merciditas Gutierrez

2 session days

Andres Bautista

3

Maria Lourdes Sereno

3

Both officials were eventually impeached by the House, but trial at the Senate did not push through after they resigned from their posts before hearings could begin.
Meanwhile, former Chief Justice Renato Corona was impeached in 2011 through the "fast track" method. Over one-third of House membership then approved the impeachment complaint when it was filed. Corona was convicted and removed from office during a Senate trial. Prinz Magtulis

Notes

Gutierrez faced two impeachment complaints. The first one was filed before Congress session could start. That could have violated the current Supreme Court ruling. Sereno's impeachment did not push through after she was removed by the Supreme Court upon petition by the Rodrigo Duterte administration through a quo warranto proceeding.

Sources

House of Representatives, Supreme Court, Data Dictionary research

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