A company seal may look like a small stamp or digital emblem, but in business it can carry serious weight. In the Philippines, an unauthorized seal can make a fake contract, board certificate, invoice, bid document, stock certificate, demand letter, or government submission appear official. If someone used your company seal without permission, the immediate priorities are to stop further use, preserve evidence, notify affected parties, and choose the right legal route: criminal complaint, civil injunction, SEC report, IP enforcement, employee discipline, or a combination of these.

What a Company Seal Means in the Philippines

Under the Revised Corporation Code, Republic Act No. 11232, a corporation has the power “to adopt and use a corporate seal.” The same law also provides that the board of directors or trustees generally exercises corporate powers, conducts business, and controls corporate property, while corporate officers perform duties under the bylaws or board authority. (Supreme Court E-Library)

In practical terms, the company seal is commonly used on:

Corporate secretary’s certificates
Board resolutions
Stock certificates
Official certifications
Major contracts
Loan, banking, or bidding documents
Government submissions
Invoices, receipts, and collection letters
Digital PDFs sent to suppliers, customers, banks, or agencies

A seal is not magic. It does not automatically make every document binding on the company. Authority usually comes from the board, bylaws, a valid officer’s authority, a special power of attorney, or a clear corporate practice. However, the seal can create a strong appearance of authenticity, especially to banks, customers, government offices, and foreign counterparties.

That is why unauthorized use should be handled quickly and carefully.

Is Unauthorized Use of a Company Seal a Crime?

It can be, depending on what the person did with the seal.

Unauthorized use of a seal is not always a standalone crime by itself. The legal issue usually becomes serious when the seal is used to falsify a document, mislead another person, obtain money or goods, pretend to represent the company, use the company name, or pass off goods or services as connected with your business.

Possible Criminal Liability Under the Revised Penal Code

The most common criminal angle is falsification of documents under Articles 171 and 172 of the Revised Penal Code, as amended by Republic Act No. 10951. Article 171 covers acts such as imitating a signature, making it appear that persons participated in an act when they did not, making untruthful statements in a narration of facts, altering true dates, or changing a genuine document’s meaning. Article 172 punishes private individuals who falsify public, official, commercial, or private documents, and persons who knowingly use falsified documents. (Supreme Court E-Library)

This can apply when, for example:

A former employee stamps a fake board resolution to authorize a bank transaction.
A supplier uses your corporate seal on a fake purchase order.
A person stamps your seal on a “certificate” claiming your company approved a product.
Someone uses a scanned company seal on a fake collection letter.
A rogue officer uses the seal on a contract outside their authority.

The distinction between commercial documents and private documents matters. A commercial document is one used in business or trade, such as invoices, receipts, order slips, and similar business documents. The Supreme Court has recognized that commercial documents are those used by merchants or business persons to promote or facilitate trade or credit transactions. (Supreme Court E-Library)

For falsification of a private document, the prosecution must generally show damage or intent to cause damage. For falsification of public, official, or commercial documents, damage is usually not required in the same way because the law protects the integrity of documents relied upon by the public or business community. (Supreme Court E-Library)

Estafa or Swindling

If the seal was used to deceive someone into releasing money, goods, services, credit, or property, estafa under Article 315 of the Revised Penal Code may also be considered. Estafa includes fraud by false pretenses, such as falsely pretending to possess authority, agency, business, credit, or similar power. (Supreme Court E-Library)

Examples:

A person uses your seal to collect payment from a customer.
A fake representative stamps your seal on a purchase order to obtain inventory.
A scammer sends a sealed “authorization letter” to redirect payments to another bank account.
A person uses a sealed document to induce a landlord, bank, or supplier to act against the company’s interest.

Possession or Manufacture of Fake Stamps, Dies, or Implements

If someone made or possessed a fake stamp, die, mark, or similar implement intended for falsification, Article 176 of the Revised Penal Code, as amended by RA 10951, may become relevant. It penalizes making, introducing, or possessing instruments intended for counterfeiting or falsification. (Supreme Court E-Library)

This is important when you discover not just a misused document, but an actual duplicate rubber stamp, metal embosser, digital seal file, template, or printing setup.

Civil Remedies: Stopping the Use and Claiming Damages

Even if a criminal complaint is possible, the company may also need civil remedies to stop continuing harm.

Under the Civil Code, Articles 19, 20, and 21 require persons to act with justice, give everyone their due, observe honesty and good faith, and compensate another person for damage caused contrary to law, morals, good customs, or public policy. (Lawphil)

Civil remedies may include:

Injunction to stop the person from using the seal
Damages for loss, business disruption, reputational harm, or costs incurred
Accounting if the person earned money using the fake authority
Cancellation or declaration of invalidity of unauthorized documents
Recovery of company property, such as physical seals, blank forms, letterheads, templates, and files

If the situation is urgent, a court may issue a temporary restraining order or preliminary injunction under Rule 58 of the Rules of Court. A temporary restraining order can be issued to preserve the situation while the court hears the application for injunction. In trial courts, the total period of a TRO generally cannot exceed 20 days, including any initial 72-hour period. (ChanRobles)

SEC, Corporate Name, and Corporate Identity Issues

If the unauthorized seal includes the company’s registered corporate name, the matter may also involve the Securities and Exchange Commission.

The Revised Corporation Code allows the SEC to investigate violations of the Code and SEC rules. It may issue subpoenas, administer oaths, issue cease and desist orders, impose administrative sanctions, and refer evidence to the Department of Justice for preliminary investigation or criminal prosecution. (Supreme Court E-Library)

Section 159 of the Revised Corporation Code specifically penalizes unauthorized use of a corporate name with a fine ranging from ₱10,000 to ₱200,000. (Supreme Court E-Library)

This may matter where someone is not merely using a seal, but is making the public believe they are the company, a branch, an authorized affiliate, or a legitimate representative.

Trademark, Trade Name, and Unfair Competition Concerns

Many company seals include the company logo, business name, trade name, or registered trademark. If the seal is used in commerce, the Intellectual Property Code, Republic Act No. 8293, may apply.

Possible IP-related claims include:

Issue	When it may apply
Trademark infringement	The company has a registered mark, and someone uses a reproduction, counterfeit, copy, or colorable imitation in a way likely to cause confusion.
Trade name violation	Someone uses your trade name or a similar name likely to mislead the public.
Unfair competition	Someone passes off their goods, business, or services as yours, or uses deception contrary to good faith.
False designation or false representation	Someone uses a name, symbol, or device likely to deceive people about affiliation, sponsorship, or approval.

The IP Code protects registered marks, trade names, goodwill, and the public from confusion. It also allows civil remedies such as damages and injunction, and criminal penalties may apply for infringement, unfair competition, or false designation. (Lawphil)

If the Seal Was Used Online or in a Digital Document

Unauthorized use often happens through PDF contracts, scanned certificates, email attachments, messaging apps, fake websites, or social media posts.

Republic Act No. 8792, the Electronic Commerce Act, recognizes electronic documents and electronic signatures, but the person relying on an electronic document still has the burden of proving authenticity. The law also considers the reliability of how the electronic data was generated, stored, communicated, and attributed. (Lawphil)

If someone digitally inserted your seal into an electronic document, computer-related forgery or fraud under Republic Act No. 10175, the Cybercrime Prevention Act of 2012, may also be relevant. Its implementing rules define computer-related forgery to include input, alteration, or deletion of computer data without right, resulting in inauthentic data intended to be considered or acted upon as authentic. (Supreme Court E-Library)

Digital evidence should be preserved carefully. Do not rely only on screenshots. Keep emails, headers, file metadata, URLs, chat exports, device information, timestamps, and original files whenever possible.

What to Do Immediately: Step-by-Step Guide

1. Secure the Original Evidence

Collect and preserve:

The document bearing the unauthorized seal
The original hard copy, if available
Envelope, courier records, or delivery proof
Email headers and attachments
Chat messages and screenshots showing full date, time, sender, and account details
URLs, web pages, or social media posts
Bank instructions, payment trails, invoices, receipts, and proof of damage
Witness names and written incident notes

For printed documents, keep the original in a safe place. Handle it as little as possible. If the document may later be examined, excessive markings, staples, or handwritten notes can create avoidable issues.

2. Identify Exactly What Was Unauthorized

Do not stop at “they used our seal.” Determine:

Who used it?
Was it a real seal, fake seal, scanned seal, or digital copy?
What document was stamped?
Was there a forged signature too?
Was the company name used?
Was money, property, credit, or approval obtained?
Were third parties misled?
Is the person an employee, officer, supplier, customer, competitor, or stranger?
Is the document still being circulated?
Are banks, government agencies, or customers relying on it?

The legal remedy depends heavily on these facts.

3. Lock Down Your Seal and Templates

Immediately secure:

Rubber stamps
Embossing seals
Pre-signed forms
Letterheads
Corporate secretary templates
Board resolution templates
Digital seal image files
Shared folders
Adobe, Canva, Google Drive, Microsoft 365, or cloud storage access
Company email accounts
Printer and scanner access
Vendor portals and e-signature platforms

Change passwords, revoke access, and document the revocation. If a former employee is involved, check whether offboarding was properly completed.

4. Notify Affected Third Parties

Send a factual notice to parties who may rely on the unauthorized document. Keep the tone neutral and precise.

A typical notice states:

The company did not authorize the specific document.
The seal appearing on it was not validly used.
The company does not recognize the transaction unless confirmed by named authorized officers.
The recipient should suspend action and provide copies of related communications.
Payments should only be made to official company accounts.

Avoid exaggerated accusations unless they are already supported by evidence. A careless public accusation can create defamation or business relations problems.

5. Issue an Internal Corporate Certification

Prepare a corporate secretary’s certification or board-approved notice identifying:

The company’s official seal or current seal policy
Authorized signatories
Documents that require board approval
Official email domains
Official bank accounts
Procedure for verifying company documents
Statement that the specific unauthorized document is not recognized

This is especially useful for banks, suppliers, bidders, government offices, and foreign counterparties.

6. Send a Demand Letter When Appropriate

A demand letter may require the person to:

Stop using the seal
Return physical stamps, templates, and files
Identify all documents where the seal was used
Identify all recipients
Retract or correct false documents
Preserve evidence
Pay damages or account for money received

If the incident involves ongoing fraud, dissipation of money, or risk to the public, do not rely on a demand letter alone. Parallel reporting to law enforcement, banks, platforms, or agencies may be needed.

7. File a Criminal Complaint if the Facts Support It

For falsification, estafa, cybercrime, or related offenses, the complaint is usually filed with the city or provincial prosecutor’s office, often after police, NBI, or cybercrime investigation.

The Department of Justice lists common requirements for a complaint for preliminary investigation, including an Investigation Data Form, complaint-affidavit or sworn statement, affidavits of witnesses, and supporting documents. (Department of Justice)

For a company complainant, prepare:

Document	Purpose
Complaint-affidavit	Main sworn narrative of what happened
Secretary’s certificate or board resolution	Proof that the representative is authorized to file
Articles, SEC registration, GIS, or company records	Proof of corporate identity
Copy of genuine seal policy or sample	Shows what is authentic and who may use it
Unauthorized document	Main evidence
Witness affidavits	Supports discovery, lack of authority, damage, and identity
Communications and metadata	Links the respondent to the act
Proof of loss or attempted loss	Supports estafa, damages, or civil liability
NBI/PNP report, if any	Useful for investigation and cyber evidence

Under the 2024 DOJ-NPS Rules, preliminary investigation complaints are assessed under a higher standard: prima facie evidence with reasonable certainty of conviction, and prosecutors may require sufficient, admissible, credible, and preservable evidence before filing an Information in court. (Global Litigation News)

8. File a Civil Case if You Need Court Protection

A civil case may be necessary when:

The unauthorized user continues circulating documents.
A bank, buyer, supplier, or agency is about to act on the fake document.
The company needs a court order to stop use.
The company needs damages.
A contract must be declared invalid or unenforceable.
Property or documents must be recovered.

For urgent cases, request a TRO or writ of preliminary injunction under Rule 58. Courts will look for a clear right to be protected, a material and substantial invasion of that right, urgent necessity, and risk of irreparable injury.

9. Consider SEC or IPOPHL Action

Consider reporting to the SEC when the misuse involves:

Unauthorized use of the corporate name
False representation as the corporation
Fraudulent corporate filings
Fake secretary’s certificates or board documents
Misleading documents submitted to the SEC
Acts by directors, trustees, or officers that violate corporate duties

Consider IP enforcement when the misuse involves:

A registered mark
A logo used on products, services, ads, or packaging
A competitor passing off its business as yours
Misleading online ads or websites
Imports bearing confusing marks or trade names

10. If an Employee Is Involved, Follow Labor Due Process

If the person who used the seal is an employee, the company should handle discipline separately from criminal or civil remedies.

Article 297 of the Labor Code allows termination for just causes such as serious misconduct, fraud, willful breach of trust, commission of a crime against the employer or authorized representatives, and analogous causes. (Labor Law PH Library)

But even for serious misconduct, the employer should observe procedural due process:

Issue a written notice to explain.
Give the employee a real opportunity to answer.
Conduct an administrative hearing or conference when appropriate.
Evaluate the evidence.
Issue a written decision.

Do not shortcut the process just because the act appears obvious. A mishandled dismissal can create a separate illegal dismissal case.

Common Scenarios and What They Usually Mean

A Former Employee Used the Company Seal After Resignation

This is common where the employee retained a stamp, downloaded templates, or kept access to old files. Focus on offboarding records, access logs, inventory of stamps, and proof that authority had already ended.

If the former employee used the seal to collect money or issue fake documents, falsification, estafa, and civil damages may be considered.

A Supplier or Customer Used the Seal on a Fake Document

This often happens with purchase orders, delivery receipts, acceptance certificates, or payment instructions. Secure the original transaction documents and notify counterparties quickly. If money was released, trace the bank account and preserve remittance records.

A Director or Officer Used the Seal Without Board Approval

This can be more complicated. Some officers have actual or apparent authority. The Supreme Court has held that acts of corporate officers beyond their authority generally do not bind the corporation unless ratified or unless the corporation is estopped from denying them; a corporation may be bound if it intentionally or negligently clothed the agent with apparent authority and an innocent third party relied in good faith. (Supreme Court E-Library)

Review the bylaws, board resolutions, prior company practice, and communications with the third party before declaring the document void.

A Fake Seal Was Used on a Notarized Document

If a notarized document contains a fake corporate seal or false representation of authority, preserve the notarized copy and check the notarial details: notary name, commission number, notarial register entry, date, place, competent evidence of identity, and document number/page/book series.

A notary’s involvement does not automatically make a forged corporate act valid. However, a notarized document is often treated seriously by banks, registries, and courts, so prompt correction and legal action may be necessary.

A Foreign Company Seal Was Used in the Philippines

Foreign corporations should check whether they are licensed to do business in the Philippines and who their resident agent is. Under the Revised Corporation Code, foreign corporations licensed to transact business in the Philippines designate a resident agent for service of summons and legal processes. (Supreme Court E-Library)

If documents are executed abroad for use in the Philippines, affidavits, board documents, and powers of attorney may need apostille or consular notarization depending on the country and document type. Philippine consular offices commonly notarize or consularize private documents such as affidavits and special powers of attorney for use in the Philippines. (Philippine Embassy)

Barangay Conciliation: Is It Required?

Usually, no, if the complainant or respondent is a corporation.

Supreme Court Administrative Circular No. 14-93 excludes complaints by or against corporations, partnerships, or juridical entities from barangay conciliation because only individuals may be parties to barangay conciliation proceedings. (Lawphil)

Barangay proceedings may still become relevant in purely personal disputes between individuals, but a corporate seal misuse case involving a corporation usually goes directly to the proper prosecutor, court, SEC, or other agency.

Practical Evidence Checklist

Evidence	Why it matters
Original stamped document	Proves the actual use of the seal
Genuine sample seal	Allows comparison
Board resolutions and bylaws	Shows who had authority
Corporate secretary certification	Establishes official company position
Access logs and email records	Links the act to a person or account
CCTV, courier logs, visitor logs	Shows possession or delivery
Payment records	Proves damage or attempted fraud
Third-party statements	Shows reliance or confusion
Demand letters and replies	Shows notice, refusal, admission, or continued use
Screenshots with metadata	Supports online misuse
Notarial details	Useful if the document was notarized
Inventory of seals and templates	Shows how misuse happened and how it was controlled

Frequently Asked Questions

Is a company seal required for a Philippine corporation?

A corporation has the legal power to adopt and use a corporate seal, but many routine transactions are valid based on proper authority and signatures, not merely because a seal appears. The key issue is whether the person who used the seal had authority.

Does a fake or unauthorized company seal automatically make a contract void?

Not always. If the person had no authority, the company may dispute the document. But if the company allowed that person to appear authorized, or later ratified the transaction, a third party may argue that the company is bound. Facts, prior practice, board authority, and good-faith reliance matter.

Can I file a criminal case for unauthorized use of a company seal?

Yes, if the facts support a crime such as falsification, use of falsified documents, estafa, computer-related forgery, or related offenses. The complaint must be supported by sworn statements and admissible evidence, not just suspicion.

Should I report the matter to the police, NBI, or prosecutor?

For straightforward document falsification, a complaint may be filed with the city or provincial prosecutor, often with police assistance. For cyber-related use, online scams, email fraud, fake websites, or digital document manipulation, NBI Cybercrime Division or PNP Anti-Cybercrime Group assistance may be useful before or alongside prosecutor filing.

Can the SEC help if someone used our company seal?

The SEC may help if the misuse involves the corporate name, corporate filings, false corporate identity, fraudulent conduct under the Revised Corporation Code, or acts by persons acting on behalf of corporations. The SEC can investigate, issue subpoenas, issue cease and desist orders, impose sanctions, and refer evidence for prosecution.

What if the seal was used on invoices or purchase orders?

Invoices, receipts, purchase orders, delivery documents, and similar business records may be treated as commercial documents. Falsification of commercial documents is taken seriously because these documents facilitate trade, credit, and business transactions.

Can we simply announce publicly that the person is a fraudster?

Be careful. A factual warning to affected parties is often necessary, but public accusations should be limited to verifiable facts. State that the document or seal use was unauthorized, identify the affected document if needed, and provide verification instructions. Avoid unnecessary insults or unsupported claims.

What if the unauthorized user is a current employee?

Secure evidence first, restrict access, and follow the company’s administrative process. Issue a notice to explain and observe due process. A criminal complaint or civil case may still proceed separately if supported by evidence.

What if I am abroad and need to act for a Philippine company?

Use a properly authorized representative in the Philippines. Corporate authority should be shown through board resolutions, secretary’s certificates, and, when needed, a special power of attorney. Documents signed abroad for Philippine use may need apostille or consular notarization depending on where they were executed.

How fast can this be stopped?

Internal controls and third-party notices can be done immediately. A demand letter may work within days if the person cooperates. Court injunctions and TROs depend on urgency, evidence, filing, raffle, hearing, and the court’s calendar. Criminal complaints typically take longer because prosecutors must evaluate the evidence before filing a case in court.

Key Takeaways

A company seal is legally significant because Philippine corporations may adopt and use one, but authority still comes from the board, bylaws, officers, or valid delegation.
Unauthorized use may lead to falsification, estafa, cybercrime, unfair competition, trademark infringement, civil damages, SEC action, or labor discipline.
Preserve original documents, digital metadata, communications, and proof of damage before confronting the user.
Notify banks, customers, suppliers, agencies, and affected parties with a factual statement that the document was not authorized.
For urgent ongoing misuse, consider a civil case with a TRO or preliminary injunction.
For fake corporate identity or unauthorized use of the corporate name, SEC remedies may apply.
If an employee is involved, follow labor due process even while preserving the company’s criminal and civil remedies.
The strongest cases are built on clear authority documents, original evidence, witness affidavits, transaction records, and prompt corrective action.