Grounds and Requirements for Filing BIR Form 1905 for Individuals and Non-Individuals

BIR Form 1905 is the Bureau of Internal Revenue’s application form used to update, correct, transfer, or cancel certain taxpayer registration information. In Philippine tax administration, it functions as the principal post-registration form for changes that occur after a taxpayer has already been registered with the BIR. It is not the form for original taxpayer registration; rather, it is the form for modifications to an existing record.

Its legal importance lies in the fact that a taxpayer’s BIR registration data is not static. Address changes, closure of business, transfer of registration, replacement of a Certificate of Registration, replacement of a Taxpayer Identification Number card, cancellation of books or invoices, and other registration-related changes all affect the taxpayer’s obligations under the National Internal Revenue Code of 1997, as amended, and the BIR’s registration regulations. A taxpayer who fails to update registration data risks mismatch issues, penalties, delay in business closure, erroneous open-case findings, and practical compliance problems involving returns, invoices, withholding taxes, and tax clearances.

Because the form is used by both individuals and non-individuals, its scope is broad. Individuals include employees, self-employed persons, professionals, mixed-income earners, sole proprietors, and certain one-time taxpayers. Non-individuals include corporations, partnerships, estates, trusts, cooperatives, associations, government entities when applicable, and other juridical persons registered with the BIR.

This article discusses the grounds for filing BIR Form 1905, the documentary requirements typically involved, the distinction between individual and non-individual applicants, the legal consequences of registration changes, and the procedural issues that commonly arise in practice.


I. Nature and Purpose of BIR Form 1905

BIR Form 1905 is generally used to apply for changes in existing taxpayer registration information. In practical terms, it is the “maintenance and updating” form for BIR registration.

It is commonly used for the following:

  1. correction or update of taxpayer information;
  2. transfer of registration due to change of registered address;
  3. closure or cessation of business;
  4. cancellation of registration-related obligations;
  5. replacement of Certificate of Registration, TIN card, or other registration records;
  6. update of line of business or business activity;
  7. cancellation or update of books of accounts or authority-related records, where applicable under BIR processes;
  8. change in civil status, name, or other personal data of an individual taxpayer;
  9. transfer or update of employer-related registration details in some contexts; and
  10. other registration amendments recognized by BIR rules.

The form is therefore administrative in character, but it has substantive compliance consequences. It determines where a taxpayer is monitored, what returns appear due in the BIR system, what tax types remain active, and whether business closure is recognized for tax purposes.


II. Legal Basis in Philippine Tax Law

The requirement to keep BIR registration records accurate is rooted in the broader statutory and regulatory structure on taxpayer registration, bookkeeping, invoicing, and compliance monitoring.

The legal framework generally includes:

  • the National Internal Revenue Code of 1997, as amended;
  • BIR regulations and revenue memorandum orders on taxpayer registration;
  • rules on registration of books of accounts, issuance of invoices/receipts, and business closure;
  • BIR circulars and issuances streamlining registration updates and transfer procedures;
  • administrative rules governing the Revenue District Office with jurisdiction over the taxpayer’s registered address.

The tax code itself requires persons subject to internal revenue taxes to register. Registration does not end with initial issuance of a TIN or Certificate of Registration. The duty to keep the registration current is a continuing obligation because tax administration is address-based and activity-based. The taxpayer’s obligations in the BIR system depend on what tax types, business lines, branches, books, and invoicing authorities are recorded against the taxpayer’s TIN.

Thus, Form 1905 is best understood as the formal mechanism for discharging the continuing duty to keep registration information truthful and current.


III. Who May File BIR Form 1905

A. Individuals

Individuals who may file include:

  • employees;
  • self-employed individuals;
  • professionals;
  • sole proprietors;
  • mixed-income earners;
  • estate administrators or representatives, where the taxpayer is an estate;
  • trustees or authorized representatives for trusts, where applicable;
  • one-time taxpayers already assigned a TIN who need a registration correction or update;
  • taxpayers who need replacement of TIN cards or registration certificates.

For individuals, the form is often used for personal data updates, change of registered address, closure of sole proprietorship activity, transfer of RDO, and replacement of registration records.

B. Non-Individuals

Non-individuals include:

  • domestic corporations;
  • foreign corporations registered or taxable in the Philippines;
  • partnerships;
  • cooperatives;
  • associations;
  • non-stock, non-profit entities;
  • government-owned or controlled corporations, when subject to registration;
  • estates and trusts in their separate taxpayer capacities;
  • other juridical entities recognized under Philippine law.

For non-individuals, the form is frequently used for transfer of registration, update of registered address, closure of head office or branch, cancellation of tax types, replacement of Certificate of Registration, and update of line of business or corporate information.


IV. Principal Grounds for Filing BIR Form 1905

1. Change in Registered Address

One of the most common grounds for filing Form 1905 is a change in registered address.

This applies where:

  • an individual changes residence and the BIR registration is tied to that residence;
  • a sole proprietor transfers the principal place of business;
  • a corporation or partnership changes its principal office;
  • a branch relocates to another address;
  • the transfer results in change of Revenue District Office jurisdiction.

In Philippine tax administration, the registered address is crucial. It determines the RDO that exercises jurisdiction over the taxpayer. If the taxpayer moves to a new place, especially across RDO boundaries, a registration update is necessary. Failure to do so can create serious issues: notices may be sent to the wrong address, open cases may remain in the former RDO, and closure or audit processes may be delayed.

A change of address may be intra-RDO or inter-RDO. If the new address remains within the same RDO, the update is simpler. If it crosses into another district, it usually entails transfer of registration records.

For non-individuals, supporting corporate documents showing the address change are typically required. For individuals, proof of the new address and valid identification are commonly involved.


2. Transfer of Registration to Another Revenue District Office

Closely related to change of address is transfer of registration.

This ground exists when a taxpayer’s registered place of business or residence falls under a different RDO from the one currently maintaining the file. The BIR keeps taxpayer records by district, so the transfer must be reflected in its system.

Examples:

  • an employee transferring residence and seeking transfer to the RDO of residence;
  • a professional moving clinic or office to another city;
  • a sole proprietor relocating the principal office;
  • a corporation transferring its principal place of business;
  • a branch being transferred to a different district.

This is not merely clerical. If a taxpayer files returns in one district while the official records remain in another, discrepancies may arise. Incorrect RDO assignment can also affect issuance of clearances, investigations, and verification of compliance.

For employees, RDO transfer has historically been especially important because withholding tax records and employer reporting are tied to the correct district. For business taxpayers, transfer is even more significant because it affects books, invoicing records, and branch registration.


3. Closure or Cessation of Business

A major ground for filing Form 1905 is closure or cessation of business.

This applies where:

  • a sole proprietorship stops operations;
  • a professional permanently ceases practice as a business activity;
  • a corporation closes the enterprise or stops a particular branch;
  • a partnership dissolves and terminates business;
  • a branch office is closed;
  • an entity stops the activity for which a tax type or registration was created.

This is among the most legally sensitive uses of Form 1905. In Philippine tax practice, business closure is not effective against the BIR merely because operations have stopped in fact. Formal closure must be processed through the BIR, and all tax obligations up to the closure date must generally be settled.

A taxpayer who physically stops operating but fails to file the proper closure application may continue to appear as active in the BIR database. The result is familiar in practice: the system keeps generating expected returns, the taxpayer accumulates open cases, and future dealings with the BIR become difficult.

Closure often requires more than the submission of Form 1905 alone. The BIR may require surrender or cancellation of:

  • Certificate of Registration;
  • unused invoices or receipts, where applicable;
  • books of accounts;
  • authority documents related to invoicing;
  • proof of business termination;
  • dissolution papers for juridical entities, where relevant;
  • inventory lists of unused accountable forms;
  • tax returns up to the last period of operation.

For corporations and partnerships, closure for BIR purposes is separate from corporate dissolution under the Corporation Code and SEC processes. A company may have corporate-law steps to complete with the SEC, but BIR closure remains a distinct tax compliance process.


4. Update or Correction of Taxpayer Information

Form 1905 is also used to correct or update material taxpayer data.

For individuals, this may involve:

  • correction of name;
  • change of civil status;
  • correction of birthdate;
  • update of trade name for sole proprietors;
  • update of registered activities;
  • correction of erroneous registration details;
  • replacement of lost or damaged registration records.

For non-individuals, this may involve:

  • correction of registered business name;
  • update of trade name or “doing business as” details;
  • correction of address or contact details;
  • update of line of business;
  • correction of legal form or registration data, subject to BIR rules;
  • changes in branch information.

The legal significance of correction requests is that the BIR system must reflect the taxpayer’s true identity and taxable activities. Errors in taxpayer information can lead to incorrect tax types, difficulties in matching with SEC or DTI records, and problems in invoice compliance or withholding tax credit claims.

Not every change is simple. Some corrections are minor clerical updates; others require supporting legal documents such as marriage certificates, SEC amendments, amended articles, or DTI updates. Where the requested change affects the very identity of the taxpayer, additional scrutiny is expected.


5. Change in Civil Status or Name of an Individual Taxpayer

For individuals, a common ground is the update of name or civil status.

Examples include:

  • change of surname due to marriage;
  • reversion to maiden name where legally supported;
  • correction of misspelled name;
  • update due to court decree or valid civil registry amendment.

This matters because the TIN belongs to the individual for life, but the name associated with the TIN must be accurate. A married taxpayer does not obtain a new TIN because of marriage; rather, the existing registration record is updated. The same logic applies to corrected names and certain civil registry changes.

Documentary support usually includes civil registry documents and valid identification. The update helps avoid mismatches in tax returns, payroll reporting, withholding tax records, and government transactions.


6. Replacement of Certificate of Registration, TIN Card, or Other Registration Documents

Form 1905 may be used to request replacement of lost, damaged, or destroyed registration documents.

This commonly includes:

  • Certificate of Registration;
  • TIN card;
  • permits or registration records recognized by the BIR process.

Grounds may include:

  • loss;
  • theft;
  • accidental destruction;
  • wear and tear rendering the document unusable;
  • need for reissuance because of updated registration details.

Where loss is involved, an affidavit of loss is commonly required, along with proof of identity and, where relevant, payment of applicable fees or documentary compliance. Where damage is involved, the damaged original is usually surrendered if still available.

This function of Form 1905 is administrative, but it is still important because a taxpayer may need the replacement document for compliance inspection, bank transactions, government bidding, licensing, and day-to-day business operations.


7. Update or Cancellation of Tax Types or Registration Details

Another important ground is the update of registered tax obligations.

Examples:

  • cessation of value-added tax liability because of a change in taxable status, subject to applicable law and BIR rules;
  • cancellation of percentage tax obligations due to change in taxpayer category;
  • removal of withholding tax types no longer applicable;
  • update of tax types due to change in business activity;
  • cancellation of obligations after closure of a branch or line of business.

This area is legally sensitive because a taxpayer’s registered tax types determine what returns are expected in the BIR system. If the wrong tax type remains active, the taxpayer may be marked delinquent for non-filing even where no legal obligation existed in fact. Conversely, if a tax type should be active but is not registered, the taxpayer risks under-compliance.

Requests in this category usually require explanation and supporting documents showing why the tax type should be updated or cancelled.


8. Update of Line of Business, Business Activity, or Branch Information

A taxpayer may need Form 1905 when the nature of the business changes.

Examples:

  • adding a new line of business;
  • deleting a discontinued line of business;
  • changing the primary activity description;
  • opening, transferring, or closing a branch, where the relevant BIR process requires registration updating;
  • aligning BIR records with updated DTI, SEC, or local permit records.

This is especially important because tax obligations can vary depending on the activity. A business engaged in sale of goods, provision of services, professional practice, real estate, or mixed activities may be subject to different invoicing, withholding, or indirect tax consequences. Accurate line-of-business registration helps the BIR classify the taxpayer correctly.


9. Cancellation of Registration Due to Dissolution, Termination, or End of Taxable Activity

For non-individuals, Form 1905 is often involved when an entity has dissolved or is winding up.

Examples include:

  • corporate dissolution;
  • partnership dissolution;
  • termination of a joint venture;
  • cessation of a project for which a separate registration existed;
  • completion of the purpose for which a taxable entity was organized, where closure is proper.

The tax effect is not automatic. From a BIR perspective, the entity must still settle final taxes, file required returns, and formally close the registration. Even after civil-law dissolution steps, tax obligations remain until recognized as closed by the BIR.

This is why liquidation and closure must be managed carefully. A dissolved corporation with an unclosed BIR registration may continue to face open cases and administrative issues.


10. Other Registration Maintenance Uses

Depending on the applicable BIR procedure in force, Form 1905 may also be used in relation to:

  • cancellation of old books of accounts when closing or replacing them;
  • update or cancellation of business-related registrations attached to branches;
  • correction of taxpayer classification;
  • update of registration due to changes in ownership structure where the taxpayer identity remains the same;
  • other record amendments recognized under specific revenue issuances.

Not every post-registration matter is handled solely by Form 1905. Some matters require separate forms, online systems, or authority applications. Still, Form 1905 remains the central BIR form for registration updating.


V. Documentary Requirements

The exact documentary requirements depend on the ground invoked. There is no single universal attachment set for all applications. The form serves multiple functions, so the supporting documents must correspond to the specific request.

Below are the common requirements by category.

A. General Requirements

For many applications, the following are commonly expected:

  • duly accomplished BIR Form 1905;
  • valid government-issued identification of the taxpayer or authorized representative;
  • proof of authority if filed through a representative, such as a special power of attorney, board resolution, secretary’s certificate, or written authorization, depending on the applicant;
  • supporting documents establishing the basis of the requested update;
  • surrender of the original document to be replaced or cancelled, if available;
  • additional BIR or RDO-specific checklist documents.

Because BIR administration is document-driven, the taxpayer should file only after gathering the records that directly prove the requested amendment.


B. For Change of Address or Transfer of RDO

Typical supporting documents may include:

  • proof of the new address;
  • updated mayor’s permit or business permit, where the taxpayer is a business;
  • updated DTI certificate for sole proprietors, if the business address changed;
  • SEC documents for corporations or partnerships, if the principal office has changed and amendments were required;
  • lease contract, transfer certificate, occupancy proof, or equivalent supporting evidence;
  • valid ID of the taxpayer or representative.

For non-individuals, the change in address should be consistent across BIR, SEC, DTI, local government, and invoicing records to avoid inconsistencies.


C. For Closure or Cessation of Business

This category usually requires the heaviest documentary package.

Common requirements may include:

  • accomplished BIR Form 1905;
  • original Certificate of Registration for surrender;
  • unused invoices, receipts, or accountable forms, where applicable;
  • inventory list of unused invoices or forms;
  • books of accounts for cancellation or presentation, where required;
  • final tax returns up to the date of closure;
  • proof of business closure or cessation;
  • board resolution, partnership resolution, or owner’s affidavit, depending on entity type;
  • SEC dissolution or liquidation documents for corporations or partnerships, where already available or required;
  • tax clearance steps and verification of open cases;
  • proof of payment of any outstanding deficiencies, penalties, or compromise amounts.

For sole proprietorships, business permit cancellation and DTI records may also be relevant. For corporations, closure of a branch may require branch-specific records distinct from head office records.

Closure is often not completed in one visit. It typically involves case verification and internal processing by the RDO.


D. For Change of Name or Civil Status of Individuals

Typical documents include:

  • accomplished BIR Form 1905;
  • valid ID;
  • marriage certificate, if due to marriage;
  • court order, annotated birth certificate, or civil registry document, if due to a lawful correction or change;
  • other official proof establishing the new legal name.

The purpose is to preserve the same TIN while correcting the registration record.


E. For Replacement of Lost or Damaged TIN Card or Certificate of Registration

Commonly required documents include:

  • accomplished BIR Form 1905;
  • valid ID;
  • affidavit of loss, if lost;
  • damaged original, if damaged rather than lost;
  • other evidence the RDO may require;
  • proof of payment of applicable charges, if any are imposed under the current process.

The taxpayer should make sure the replacement request is consistent with the BIR’s current issuance process.


F. For Update of Line of Business or Corporate Information

Typical documents may include:

  • updated DTI certificate for sole proprietors;
  • amended SEC registration documents for corporations or partnerships, where applicable;
  • board resolution or secretary’s certificate;
  • updated permits;
  • explanation of the business change;
  • supporting records proving the new business activity.

If the activity change affects tax types, additional supporting papers may be needed.


G. For Non-Individuals Filing Through Representatives

Because juridical entities act through natural persons, proof of authority is crucial.

Typical proofs of authority include:

  • secretary’s certificate;
  • board resolution;
  • notarized special power of attorney;
  • government-issued ID of the authorized signatory or representative.

A corporate officer’s authority should be clear from the submitted papers. The BIR is entitled to require proof that the person signing or filing is authorized to bind the entity.


VI. Distinction Between Individuals and Non-Individuals

Although the same form is used, the documentary and legal context differs.

A. Individuals

For individuals, the usual issues are:

  • name or civil status changes;
  • transfer of residence-based RDO;
  • closure of sole proprietorship;
  • replacement of TIN card;
  • correction of personal data.

The identity of the taxpayer generally remains tied to one natural person for life. A TIN should not be duplicated. Registration updates do not create a new taxpayer personality.

B. Non-Individuals

For non-individuals, the issues are often more document-intensive:

  • principal office transfer;
  • change in branch information;
  • line of business update;
  • corporate dissolution;
  • surrender of corporate registration records;
  • alignment of BIR records with SEC or DTI changes.

A corporation or partnership acts through resolutions and official amendments. Its BIR registration data should be consistent with corporate documents, local permits, and business records.


VII. Procedural Considerations

1. Filing With the Proper Revenue District Office

As a general rule, Form 1905 is filed with the RDO that has jurisdiction over the taxpayer’s registration record or the taxpayer’s new registered address, depending on the transaction and the BIR process in force.

Improper venue can delay the application. This matters especially in inter-RDO transfer and closure cases.

2. Personal Filing or Authorized Representative

The taxpayer may file personally or through an authorized representative. Where a representative files, the BIR may require proof of authority and identification.

3. Documentary Consistency

The BIR often checks consistency among:

  • BIR records;
  • DTI certificate;
  • SEC registration;
  • business permit;
  • lease documents;
  • invoicing records;
  • taxpayer identification details.

Any conflict can delay approval.

4. Open Cases and Outstanding Liabilities

For closure requests, the BIR typically checks whether there are open cases or unfiled returns. A taxpayer cannot assume that closure will be approved simply because a business has stopped operating. The taxpayer may first need to regularize returns, pay penalties, or explain filing gaps.

5. Surrender and Cancellation of Registration Materials

Where business closure is involved, unused invoices, receipts, certificates, or other accountable records may need to be surrendered or cancelled. This is a critical step. A taxpayer who keeps unused accountable forms after business closure invites compliance problems.

6. No New TIN for Mere Updates

For individual taxpayers, updates such as marriage, civil status change, or transfer of RDO do not justify obtaining a new TIN. A person must maintain only one TIN. Form 1905 exists precisely so changes can be recorded without duplication.


VIII. Legal Consequences of Failure to File Form 1905 When Required

Failure to update BIR registration information can lead to serious consequences.

A. Accumulation of Open Cases

If a business stops operating but does not formally close registration, the BIR system may continue expecting periodic returns. This can generate open cases and associated penalties.

B. Wrong RDO Jurisdiction

If an address changes without transfer, the taxpayer may face filing, verification, and records problems. Notices may be misdirected. Future registration transactions may be delayed.

C. Inaccurate Tax Type Monitoring

Failure to cancel or update tax types may lead to assessments for non-filed returns or confusion over applicable obligations.

D. Problems in Business Closure or Dissolution

A company that has dissolved in corporate law may still remain “alive” in BIR records until formal closure is completed. This can obstruct liquidation and tax clearance.

E. Inconsistency With Other Government Records

Mismatch between BIR, SEC, DTI, and local government records may cause issues in licensing, procurement, banking, compliance reviews, and due diligence.


IX. Common Practical Scenarios

1. Employee Changing Residence

An employee who transfers residence may need to update the RDO assignment if the current BIR rules require the record to be transferred. The key issue is proper matching of the employee’s TIN and withholding tax records.

2. Sole Proprietor Closing Store Operations

A sole proprietor who closes a shop must not stop at cancelling the business permit. The BIR registration must also be formally closed through the proper process, usually involving Form 1905 and surrender of relevant records.

3. Corporation Transferring Principal Office

A corporation moving from one city to another must ensure SEC, local permit, and BIR records all reflect the same new address. Form 1905 is ordinarily part of this compliance chain.

4. Professional Ceasing Practice

A professional who permanently stops practice should update or close the registration to prevent continued expectation of business-related returns.

5. Married Individual Updating Surname

A married taxpayer should update the registration under the existing TIN rather than apply for a new one.

6. Branch Closure

Closing a branch does not automatically close the head office registration. The closure must be properly reflected as to the specific branch while preserving any continuing registrations of the main office or other branches.


X. Special Notes on Business Closure

Business closure deserves separate emphasis because many taxpayers misunderstand it.

First, closure is not merely operational; it is regulatory. Stopping sales, closing the storefront, or ending services does not by itself terminate BIR registration.

Second, closure is usually not instantaneous. The BIR may examine open liabilities, unused accountable forms, and prior filing history.

Third, closure may be full or partial. An entity may close one branch but continue operating others. It may discontinue one line of business while keeping another active. The registration update must therefore be precise.

Fourth, final compliance up to the date of closure remains necessary. The taxpayer must generally file all required returns up to the effective cessation date.

Fifth, closure interacts with invoicing compliance. Unused invoices or equivalent business forms cannot simply be ignored. They may need to be surrendered, cancelled, or accounted for under BIR procedures.


XI. Special Notes on Corporations and Partnerships

For non-individuals, Form 1905 often intersects with corporate law.

A corporation that amends its principal office, changes business activity, dissolves, or closes a branch should ensure that the corporate action is documented through proper internal approvals and, where required, SEC filings. The BIR is not bound by informal business decisions unsupported by legal documents.

Likewise, partnerships that dissolve should complete both civil-law and tax-law closure steps. Dissolution among the partners does not automatically update the BIR record.

Because corporations and partnerships act through authorized officers, defects in proof of authority can stall processing. The representative should have clear authority under a board resolution, secretary’s certificate, or comparable corporate authorization.


XII. Evidentiary Principles Relevant to Form 1905 Filings

From an administrative-law standpoint, Form 1905 filings are evidence-based. The BIR is entitled to demand proof sufficient to justify the requested registration change.

Three principles govern most cases:

1. Identity must be proved.

The taxpayer or representative must establish who is making the request and under what authority.

2. The factual change must be proved.

The taxpayer must show that the address changed, the business ceased, the name changed, the document was lost, or the branch was closed.

3. The legal effect must be supported.

Where the change affects juridical status, business authority, or tax type, the taxpayer should present the legal documents that show why the update is proper.

This is why documentary requirements vary from case to case.


XIII. Best Compliance Practices

A careful taxpayer should observe the following practices:

  • update registration promptly after any material change;
  • maintain only one TIN per taxpayer;
  • keep BIR records consistent with SEC, DTI, and permit records;
  • retain copies of filed Form 1905 and attachments;
  • resolve open cases before attempting closure;
  • surrender unused accountable forms where required;
  • document representative authority clearly;
  • distinguish between closure of a branch and closure of the entire business;
  • avoid assuming that business inactivity automatically ends tax obligations.

These are not mere administrative conveniences. They reduce exposure to penalties and future disputes.


XIV. Limits of BIR Form 1905

Form 1905 is broad, but it is not a substitute for every BIR compliance step.

It does not replace:

  • original taxpayer registration forms;
  • tax returns;
  • corporate dissolution filings before the SEC;
  • DTI registration amendments where required;
  • local business permit cancellation;
  • invoicing applications or system-specific submissions when separate procedures apply.

Instead, it operates as the BIR’s central update form within a larger compliance framework.


XV. Conclusion

BIR Form 1905 is the key Philippine tax form for updating, correcting, transferring, replacing, and, in many cases, closing taxpayer registration records after initial registration has already been made. For both individuals and non-individuals, it serves as the formal mechanism by which a taxpayer keeps the BIR record aligned with reality.

Its most important grounds include change of registered address, transfer of RDO, closure or cessation of business, correction of taxpayer information, change of civil status or name, replacement of lost or damaged registration documents, update of line of business, cancellation or update of tax types, and closure of branches or juridical entities. The required attachments depend on the precise ground invoked, but usually revolve around proof of identity, proof of the factual change, proof of authority where a representative acts, and surrender or cancellation of affected registration records.

In legal and practical terms, the most consequential use of Form 1905 is business closure and registration transfer. These are the areas where taxpayers most often incur avoidable penalties, open cases, and administrative obstacles. A taxpayer who stops operating without formally closing the BIR registration remains exposed. A taxpayer who moves without updating the RDO record remains mismatched. A taxpayer who changes name or status without updating records risks inconsistencies across compliance systems.

The core rule is simple: BIR registration is a continuing legal relationship, and whenever that relationship materially changes, Form 1905 is the principal instrument for recording the change.

Disclaimer: This content is not legal advice and may involve AI assistance. Information may be inaccurate.