Bureau of Internal Revenue (BIR) Philippines
Updated June 13, 2026
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The BIR is the Philippine government agency responsible for collecting national internal revenue taxes including income tax, VAT, excise tax, and documentary stamp tax.
What is the BIR?
The Bureau of Internal Revenue (BIR) is the bureau under the supervision and control of the Department of Finance (DOF) that assesses and collects all national internal revenue taxes in the Philippines. Its powers and duties are set out in the National Internal Revenue Code (NIRC) of 1997, as amended by the Tax Reform for Acceleration and Inclusion (TRAIN) Law RA 10963 and later laws, and it is the primary tax authority that Filipino individuals, self-employed persons, and corporations deal with (NIRC §2).
Structure and Organization
The BIR is headed by the Commissioner of Internal Revenue, assisted by four Deputy Commissioners (NIRC §3). The agency operates through its National Office in Quezon City, Revenue Regions, and Revenue District Offices (RDOs) across the Philippines. Each RDO serves a geographic area and handles tax registration, assessment, collection, and enforcement within its jurisdiction. Taxpayers are assigned to an RDO based on their principal place of business or residence.
Core Functions and Responsibilities
The BIR's primary functions include: (1) assessing and collecting income taxes from individuals and corporations; (2) administering value-added tax (VAT) on goods and services; (3) collecting excise taxes on specific commodities such as fuel, alcohol, and tobacco; (4) collecting documentary stamp taxes on certain documents and transactions; (5) issuing tax identification numbers (TINs) and maintaining the taxpayer registry; (6) processing tax returns and refunds; (7) conducting tax audits and investigations; and (8) enforcing tax compliance through penalties and criminal prosecution (NIRC §2).
Taxes Administered by the BIR
The BIR collects the following major taxes: (1) Income Tax, levied on individuals at graduated rates, with the first ₱250,000 of taxable income taxed at 0%, and on corporations (NIRC §24, §27); (2) Value-Added Tax (VAT), a 12% tax on the sale of goods and services, with exemptions for certain essential items (NIRC §106); (3) Excise Tax, imposed on fuel, alcohol, tobacco, and other specified goods (NIRC Title VI); (4) Documentary Stamp Tax, collected on contracts, deeds, and financial instruments (NIRC §173); and (5) Estate and Donor's Taxes, a flat 6% tax on the net estate of a decedent and on gifts above ₱250,000 a year (NIRC §84, §99, as amended by TRAIN).
How to Interact with the BIR
Taxpayers interact with the BIR through multiple channels: (1) Registration: obtaining a TIN at the BIR office or online via the BIR website; (2) Filing Returns: submitting annual income tax returns (ITR) by April 15 each year, or quarterly VAT returns if VAT-registered (NIRC §51, §114); (3) Payment: remitting taxes through authorized banks, online platforms, or BIR offices; (4) Inquiries: contacting the BIR through its hotline, email, or in-person visits to the RDO; and (5) Compliance: keeping books of accounts and records for five years from the day after the return deadline, including sales invoices, purchase receipts, and financial statements (NIRC §235, as amended by RA 11976).
BIR Penalties and Enforcement
The BIR enforces tax compliance through administrative and criminal penalties. Failing to file and pay on time adds a 25% surcharge (50% for willful neglect or fraud) plus interest at 12% per annum on the unpaid tax (NIRC §248, §249). Micro and small taxpayers pay a 10% surcharge and 6% interest instead (RA 11976). Willful attempts to evade tax are a criminal offense punishable by imprisonment and fines (NIRC §254). The BIR conducts audits, field investigations, and criminal investigations to enforce compliance.
Recent Developments and Digital Initiatives
The BIR has moved much of its work online. The Online Registration and Update System (ORUS) handles registration, while eBIRForms and eFPS handle electronic filing. The Tax Code also requires electronic invoicing for exporters, sellers engaged in e-commerce, and large taxpayers (NIRC §237). Taxpayers can get help from their RDO or the BIR contact center.
Why it matters
Every Filipino taxpayer must understand the BIR's role, functions, and requirements to comply with tax laws, avoid penalties, and access services like refunds and tax clearances. The BIR's decisions directly affect your tax liability, so knowing how to interact with it effectively is critical for financial planning and legal compliance.
How it works
Register for a Tax Identification Number (TIN)
Visit your assigned BIR Revenue District Office or register online through ORUS. Provide proof of identity, proof of residence, and business registration documents if self-employed. Once registration is approved you receive a TIN, which is required for all tax transactions (NIRC §236).
File Your Annual Tax Return
Prepare your income tax return (ITR) using the correct form based on your income source. File by April 15 each year with your RDO or online. Include all income, deductions, and tax payments. Late filing with tax due incurs a 25% surcharge plus 12% annual interest (NIRC §51, §248, §249).
Pay Your Taxes
Remit taxes through authorized banks, BIR offices, or online payment platforms. For employees, your employer withholds tax from each payroll. Self-employed individuals and business owners file quarterly income tax returns and an annual return. Keep proof of payment for your records (NIRC §56, §57, §74).
Maintain Records and Respond to Audits
Keep books of accounts, receipts, invoices, and financial statements for five years from the day after the return deadline. If the BIR conducts an audit, respond promptly with requested documents. Cooperate with BIR representatives to resolve discrepancies and avoid penalties (NIRC §235, §228).
Examples
Salaried employee earning ₱600,000 annually
Juan dela Cruz has taxable compensation of ₱600,000 a year as an accountant. His employer withholds income tax using the 2023 onward table, which gives ₱22,500 + 20% of the ₱200,000 above ₱400,000 = ₱62,500 a year. With one employer and correct withholding, his BIR Form 2316 serves as his substituted filing, so he does not file an annual ITR (NIRC §24, §51-A).
Self-employed freelancer with ₱800,000 gross income
Maria Santos is a freelance graphic designer earning ₱800,000 annually. She registers as self-employed with the BIR, obtains a TIN, and files quarterly income tax returns (BIR Form 1701Q). If she uses itemized deductions she deducts business expenses (equipment, software, office rent), and she files her annual ITR by April 15 (NIRC §32, §34, §74).
Small business owner with VAT-registered store
Anna Reyes operates a retail store with annual sales of ₱2,500,000. She is VAT-registered and collects 12% VAT from customers. She files quarterly VAT returns and annual income tax returns. She maintains sales invoices and purchase receipts for BIR audit purposes (NIRC §106, §114, §235).
OFW receiving remittances and local income
Roberto Cruz works abroad but earns ₱150,000 annually from a local rental property. His income earned abroad is not taxed in the Philippines, but his Philippine rental income is. He registers the rental with the BIR and files his returns. Since taxable income up to ₱250,000 is taxed at 0%, his income tax can be nil, although 3% percentage tax applies unless he elects the 8% rate (NIRC §23, §24(A), §116).
Retiree with pension and investment income
Lourdes Fernandez receives an SSS pension and ₱100,000 a year in cash dividends from a Philippine corporation. SSS benefits are excluded from gross income. The dividends bear a 10% final tax (₱10,000) withheld by the paying corporation, so they are not reported in an annual ITR (NIRC §24(B)(2), §32(B)(6)).
Common misconceptions
- Myth: The BIR only collects income tax.
- Fact: The BIR administers multiple taxes including VAT, excise tax, documentary stamp tax, and estate and donor's taxes (NIRC §3). Income tax is only one of its major revenue sources.
- Myth: If I earn less than ₱250,000 annually, I don't need to file a tax return.
- Fact: Non-taxable individuals earning below ₱250,000 may still file a return to claim refunds of excess withholding or to establish a tax compliance record. Self-employed persons must file regardless of income level (NIRC §51, §24).
- Myth: The BIR cannot audit me if I file my return on time.
- Fact: The BIR can assess any taxpayer within three years after the filing deadline (ten years from discovery for false or fraudulent returns or failure to file) to verify the accuracy of reported income and deductions (NIRC §203, §222).
- Myth: Paying a bribe to a BIR officer is acceptable if I owe taxes.
- Fact: Offering a bribe to a public official is a crime under the Revised Penal Code, and a BIR employee who extorts or accepts money is punished under the Tax Code (NIRC §269).
- Myth: I can claim unlimited deductions to reduce my taxable income.
- Fact: Deductions must be substantiated with receipts and invoices and must be ordinary and necessary business expenses. The BIR disallows unsupported or excessive deductions during audit (NIRC §34, §36).
Questions people ask
What is a Tax Identification Number (TIN) and why do I need one?
A TIN is a unique nine-digit number (followed by a branch code) assigned by the BIR to identify you as a taxpayer. It is required to file tax returns and register a business, and employers and banks commonly ask for it. You obtain a TIN by registering with your assigned RDO (NIRC §236).
How do I know which BIR Regional District Office (RDO) I am assigned to?
Your RDO is determined by your principal place of business or residence. The BIR website lists RDOs by area, and the BIR contact center can confirm yours. Your employer or accountant can also help you identify your RDO.
What happens if I file my tax return late?
If tax is due, late filing adds a 25% surcharge plus interest at 12% per annum on the unpaid amount, and a compromise penalty may also apply. Micro and small taxpayers pay a 10% surcharge and 6% interest (NIRC §248, §249; RA 11976).
Can the BIR audit me even if I filed my return correctly?
Yes. The BIR can examine any taxpayer and issue an assessment within three years after the filing deadline (or after actual filing, if later) to verify the accuracy of reported income and deductions. Cooperation and timely submission of documents help resolve audits quickly (NIRC §203).
What records must I keep for BIR inspection?
You must keep your books of accounts and records, such as sales invoices, purchase receipts, bank statements, payroll records, and financial statements, for five years from the day after the return deadline. These records substantiate your reported income and claimed deductions. Failure to produce records during an audit can result in penalties and tax assessments (NIRC §235, as amended by RA 11976).
How do I pay my taxes to the BIR?
You can pay through authorized agent banks, revenue collection officers, or BIR-accredited electronic payment channels. Keep your proof of payment. Payments must be made by the due date to avoid penalties (NIRC §56).
What is the difference between a tax return and a tax assessment?
A tax return is your self-reported statement of income and tax liability filed with the BIR. A tax assessment is the BIR's determination of your actual tax liability after audit or investigation. If the assessment differs from your return, you can protest it with the BIR and, if denied, appeal to the Court of Tax Appeals (NIRC §228).
Can I request a refund of overpaid taxes?
Yes. Employees usually get excess withholding back from their employer in the year-end adjustment. Other taxpayers may carry the excess over as a tax credit or file a written refund claim with the BIR within two years from payment of the tax (NIRC §204(C), §229).
In practice
- Employees receive BIR Form 2316 (Certificate of Compensation Payment/Tax Withheld) from their employer by January 31 each year. For employees who qualify, it serves as substituted filing; others attach it to BIR Form 1700 or 1701.
- Self-employed professionals and business owners must keep books of accounts, such as a journal and a ledger, for BIR inspection during audits (NIRC §232).
- VAT-registered businesses must issue invoices to all customers (official receipts were replaced by invoices under RA 11976) and file quarterly VAT returns (BIR Form 2550Q) within 25 days after the close of each taxable quarter (NIRC §113, §114).
- The BIR issues a tax clearance on application. Bidders in government procurement must submit one, and other agencies and transactions may ask for it too.
- A taxpayer who receives a Final Assessment Notice can protest it in writing within 30 days of receipt (NIRC §228).
Next steps
Related content
Calculators
Tax types
Taxpayer guides
BIR forms
Guides
Glossary
Sources & References (1)
Primary sources and the laws, regulations, and official issuances this page relies on. Links open the recorded source documents or references.
- Bureau of Internal Revenue. “BIR: official agency site and mandate.” bir.gov.ph. Bureau of Internal Revenue, About Us. Source checked .