Quick answer

A component city does not become a highly urbanized city (HUC) merely because it is large, prosperous, or classified as a first-class city. Under Sections 452 and 453 of the Local Government Code, the city must:

Have at least 200,000 inhabitants, officially certified by the Philippine Statistics Authority (PSA);
Have a latest annual income of at least ₱50 million, measured at 1991 constant prices, officially certified and verified;
File a proper application supported by a duly approved city-council resolution and the required certifications;
Be declared highly urbanized by the President, subject to ratification; and
Obtain a majority of the votes cast in the required plebiscite.

The presidential proclamation alone does not complete the conversion. The city becomes an HUC only if the proclamation is ratified in the plebiscite. For an ordinary component city, the Supreme Court has ruled that the entire province—not only the city—may be entitled to vote because both political units are directly affected.

The legal requirements

Section 452 of Republic Act No. 7160, or the Local Government Code, sets two minimum qualifications.

Population of at least 200,000

The city must have at least 200,000 inhabitants. Although the original law refers to certification by the former National Statistics Office, that function is now performed by the PSA.

The controlling figure is the officially certified population—not a city estimate, voter count, household survey, or population projection. A city should use the latest census or other official population determination that the PSA is legally prepared to certify for this purpose.

Annual income of at least ₱50 million at 1991 constant prices

The city must also have a latest annual income of at least ₱50 million based on 1991 constant prices.

This is not the same as showing ₱50 million in current or nominal pesos. The income must be converted to 1991 price levels using the applicable government methodology. The certification should expressly identify the covered year, income figure, basis of computation, and resulting amount at 1991 constant prices.

Section 452 refers to certification by the city treasurer. In current executive practice, the Office of the President also relies on verification or certification from the Department of Finance–Bureau of Local Government Finance (DOF-BLGF). For example, Proclamation No. 1267 of 2026 cited both the statutory threshold and a DOF-BLGF-certified income figure at 1991 constant prices.

A city should therefore obtain the city treasurer’s complete certification and coordinate early with the DOF-BLGF regarding verification. A locally prepared computation, unsupported budget total, or certificate stated only in current prices may be inadequate.

Income class is a different legal classification

Being a first-class city does not automatically make a city an HUC. Republic Act No. 11964, the Automatic Income Classification of Local Government Units Act, establishes a separate system based on average annual regular income.

That system is used for matters such as financial capacity, compensation, grants, and other statutory purposes. It did not replace the specific HUC requirements in Section 452. The controlling HUC income threshold remains ₱50 million at 1991 constant prices, unless Congress amends that provision.

The conversion process

1. The city council adopts a formal resolution

Under Article 12 of the Implementing Rules and Regulations of the Local Government Code, the interested city must submit a resolution of its sangguniang panlungsod that:

Was adopted by a majority of all the council’s members, not merely a majority of those present;
Was considered at a meeting duly called for that purpose;
Requests conversion into an HUC;
Is approved and endorsed by the city mayor; and
Is accompanied by the required population and income certifications.

The records should clearly establish the notice, quorum, attendance, vote, final text, mayoral endorsement, and authenticity of the supporting certifications.

2. The city files its application with the Office of the President

The resolution and supporting records are submitted to the Office of the President. A complete filing should ordinarily include:

The certified city-council resolution;
Minutes and voting records;
The mayor’s written approval and endorsement;
The PSA population certification;
The city treasurer’s income certification;
Supporting income statements and computation at 1991 constant prices;
Any DOF-BLGF verification requested by the Office of the President; and
Other documents required during executive review.

Reaching the two numerical thresholds without filing a proper application does not automatically change the city’s status.

3. The President verifies the requirements and issues a declaration

Section 453 makes it the President’s duty, upon proper application, to declare the city highly urbanized after the legal requirements have been met. The implementing rules direct the President, after verification, to act within 30 days from receipt of the resolution.

In practice, the President issues a proclamation declaring the proposed conversion subject to ratification in a plebiscite. The proclamation is therefore conditional. Until the voters approve it, the city retains its existing status.

The Supreme Court explained in Umali v. COMELEC that no additional act of Congress is ordinarily required: the Local Government Code itself delegates to the President the determination of whether the measurable statutory requirements have been satisfied.

4. COMELEC prepares and conducts the plebiscite

The implementing rules direct COMELEC to hold the plebiscite within 120 days from the presidential declaration, or on another date specified in the declaration.

COMELEC must issue the controlling plebiscite rules and calendar. It also conducts a comprehensive information campaign, with assistance from government officials, media, nongovernment organizations, and other interested parties.

The actual calendar can be affected by the proclamation’s terms, COMELEC resolutions, court orders, election synchronization, or other lawful directives. A delay does not mean that the city has automatically become an HUC. The operative proclamation, COMELEC issuances, and any judicial orders must be checked.

5. The proper electorate votes

Article X, Section 10 of the 1987 Constitution requires approval by a majority of the votes cast in a plebiscite in the political units directly affected.

Section 453 refers to ratification by the qualified voters “therein,” and the implementing rules describe a plebiscite in the city. The Supreme Court, however, held in Umali v. COMELEC that conversion of an ordinary component city into an HUC directly affects both the city and its mother province. The conversion changes territorial, political, tax, budgetary, and administrative relations. Consequently, the Court ordered that all qualified registered voters of Nueva Ecija be allowed to participate in the proposed conversion of Cabanatuan City.

The decision remains important: officials should not automatically assume that only city voters may participate. COMELEC must identify the electorate consistently with the Constitution and controlling Supreme Court decisions.

The answer may differ where the applicant is already an independent component city, because some political and fiscal separation from the province may already exist. The city charter, existing voting rights, presidential proclamation, COMELEC resolution, and the actual effects on the province must be examined. The Cabanatuan ruling should not be applied mechanically to materially different facts.

6. A majority of the votes cast must approve the conversion

The measure is ratified if it obtains a majority of the valid votes cast in the legally defined plebiscite.

After voting, the authorized boards canvass the returns and proclaim the official result in accordance with COMELEC’s resolution. If the “Yes” vote does not obtain the required majority, the conditional presidential declaration does not take effect and the city retains its prior classification.

What changes after ratification

Conversion is not simply an honorary label. An HUC becomes independent of the province in which it remains geographically located.

Provincial political ties end

Voters registered in an HUC generally cannot vote for provincial governor, vice-governor, or members of the sangguniang panlalawigan. The city’s residents also cease to be part of the provincial political constituency.

Section 452 contains a narrow historical exception for voters who acquired the right to vote for provincial officials under circumstances occurring after ratification of the 1987 Constitution but before the Local Government Code took effect. That transitional exception should not be assumed to apply to a new conversion.

Provincial supervision and legislative coverage end

The province no longer exercises its former supervisory and review relationships over the city. Provincial ordinances and resolutions no longer govern the HUC merely because it remains geographically within the province.

The President exercises general supervision directly over HUCs. Administrative and disciplinary arrangements for local elective officials also change under the Local Government Code.

Tax and budget relations change

Taxes, fees, and charges imposed and collected by an HUC accrue to the city under the Local Government Code. The province may lose taxing jurisdiction and shares in certain local taxes previously connected with the component city.

The province’s National Tax Allotment and other fiscal calculations may also be affected by changes in the population, land-area, and political relationships recognized for allocation purposes. The precise effect must be calculated from current official data; it should not be announced as a fixed gain for the city or fixed loss for the province without a documented fiscal analysis.

The Supreme Court discussed these consequences in Umali and later explained the independence and fiscal autonomy of HUCs in Del Rosario v. COMELEC.

Provincial services and projects may have to be reassigned

Because the HUC becomes a separate first-level political and administrative unit, responsibility for services, facilities, personnel, assets, liabilities, and continuing projects may need to be reviewed. Existing contracts or jointly funded projects do not necessarily disappear, but their legal basis, funding, ownership, and implementation arrangements should be examined.

A transition plan should identify at least:

Provincial services currently delivered inside the city;
Shared hospitals, roads, facilities, equipment, and records;
Pending infrastructure and procurement projects;
Employees assigned to shared functions;
Outstanding obligations and inter-LGU agreements;
Tax collections and revenue-sharing arrangements; and
Programs requiring replacement agreements or national-agency coordination.

What conversion does not automatically do

HUC status does not by itself:

Increase local tax rates;
Create a new tax without an ordinance and compliance with applicable procedures;
Guarantee more national funding;
Improve services without appropriations and implementation;
Cancel valid contracts automatically;
Change barangay boundaries;
Relocate the provincial capital;
Create a new congressional district; or
Turn a municipality into a city.

Creation of a city from a municipality is governed by different provisions, including Section 450 of the Local Government Code. Congressional representation is governed separately by Article VI, Section 5 of the Constitution and applicable reapportionment laws.

Practical steps for city officials and proponents

Before filing an application:

Confirm the city’s present legal status. Review its charter and amendments to determine whether it is an ordinary or independent component city and whether its voters currently participate in provincial elections.
Secure original certifications. Obtain a current PSA population certification and a detailed city-treasurer certification of the latest annual income at 1991 constant prices.
Coordinate with DOF-BLGF. Confirm the acceptable income base, covered fiscal year, deflator, supporting statements, and verification process.
Prepare a documented fiscal-impact study. Show the effects on the city, province, taxes, allotments, services, personnel, assets, contracts, and pending projects.
Follow the council procedure exactly. Preserve the meeting notice, agenda, roll call, quorum, minutes, nominal voting record, approved resolution, and mayoral endorsement.
Obtain proof of filing. Keep the complete application, attachments, transmittal letter, receiving stamp, and official correspondence with the Office of the President.
Monitor official issuances. Use the signed presidential proclamation and COMELEC resolutions—not social-media summaries—to confirm the electorate, schedule, question, campaign period, voting rules, and canvass.
Publish understandable information. Explain both the advantages and the legal, political, and financial consequences, including the loss of provincial voting rights where applicable.
Plan for both results. Prepare a transition plan for ratification and a continuity plan if the proposal is rejected.

What voters should verify

Before deciding, voters should ask for documentary answers to these questions:

What population and income certifications were submitted?
Was the income truly computed at 1991 constant prices?
Who will be legally entitled to vote?
Will city residents lose the right to vote for provincial officials?
Which provincial services will end or be transferred?
How will hospitals, roads, scholarships, social services, and disaster programs be funded?
Which taxes and fees could legally shift to the city?
How will conversion affect the province’s revenues and remaining residents?
What assets, personnel, contracts, and projects require transition arrangements?
Is each claimed benefit automatic under law, or dependent on a future budget or ordinance?

Useful records can be requested from the sanggunian secretary, city treasurer, city planning and budget offices, PSA, DOF-BLGF, Office of the President, and the appropriate COMELEC election office, subject to lawful access restrictions.

Evidence to preserve

Whether supporting, opposing, monitoring, or legally questioning the conversion, preserve authenticated or officially downloaded copies of:

The city charter and amendments;
The council resolution, meeting notice, agenda, minutes, attendance, and voting record;
The mayor’s endorsement;
Population and income certifications;
Income computations and supporting financial statements;
The full application and proof of receipt;
Presidential and executive-office correspondence;
The signed presidential proclamation;
COMELEC resolutions, calendars, ballots, and voter-information materials;
Official lists identifying participating political units;
Fiscal-impact and transition studies;
Statements of votes, canvass records, and the proclamation of results; and
Any court orders affecting the electorate or timetable.

Retain the original file, download date, source URL, and any digital signature or certification. Screenshots alone may omit pages, attachments, or authenticity information.

Common mistakes

Treating a first-class city as automatically highly urbanized;
Using current-price income instead of 1991 constant prices;
Relying on estimates instead of an official PSA certification;
Counting only the members present when the required council vote is a majority of all members;
Assuming the presidential proclamation completes the conversion;
Assuming only city residents may vote despite Umali v. COMELEC;
Confusing an ordinary component city with an independent component city;
Promising automatic tax reductions, increased funding, or improved services;
Ignoring the effect on provincial voting rights;
Failing to disclose the province’s fiscal and service-delivery interests; and
Relying on campaign posts instead of the proclamation, COMELEC rules, and official canvass.

When legal help is urgent

Consult a lawyer experienced in local-government and election law promptly if:

The council meeting, quorum, vote, or mayoral endorsement is disputed;
A certification appears outdated, incomplete, or based on the wrong income measure;
COMELEC’s defined electorate may exclude a political unit directly affected;
The proclamation or plebiscite schedule appears inconsistent with the governing rules;
A court challenge, temporary restraining order, or petition has been filed;
The ballot question or official information materials may be materially misleading;
Canvass records, returns, or the proclaimed result are contested; or
Officials plan to implement HUC powers before valid ratification.

Election and plebiscite disputes can involve exceptionally short procedural periods. Do not wait for the political or fiscal transition to begin before obtaining advice.

Frequently asked questions

Does reaching 200,000 people and the income threshold automatically make the city an HUC?

No. The city still needs a proper application, presidential declaration, COMELEC-administered plebiscite, and majority approval.

Is the income requirement ₱50 million in current pesos?

No. Section 452 requires at least ₱50 million at 1991 constant prices. The officially accepted computation and certification control.

Is a first-class city already an HUC?

No. Income class and HUC status are separate classifications governed by different legal tests.

Who votes in the plebiscite?

It depends on which political units are directly affected. For conversion of an ordinary component city, Umali v. COMELEC held that the qualified registered voters of the entire province must participate. Different facts—particularly an applicant already classified as an independent component city—require examination of its charter, existing provincial ties, and the controlling COMELEC and judicial issuances.

Does a presidential proclamation immediately change the city’s status?

No. A conversion proclamation is conditional upon plebiscite ratification.

Will city residents lose their provincial vote?

Generally, yes, once the city validly becomes an HUC. Existing independent component cities may already have charter-based restrictions on provincial voting.

Does HUC status automatically raise local taxes?

No. Conversion changes taxing jurisdiction, but a particular tax or rate change still requires legal authority, a valid ordinance, and compliance with applicable procedures.

Does an HUC automatically receive a lone congressional district?

No. HUC classification and congressional apportionment are separate legal matters.

What happens if the proposal loses?

The conditional conversion does not take effect, and the city keeps its existing classification.

Official legal references

This article provides general legal information, not legal advice or a prediction about any particular city’s application. A city charter, official certifications, executive issuances, COMELEC resolutions, and court orders may change the conclusion in a specific case. Sources and current legal developments were checked through July 20, 2026.