A Revenue District Office, or RDO, is the local Bureau of Internal Revenue unit that handles your taxpayer registration, receives your tax filings, and keeps your BIR records. Every taxpayer in the Philippines is assigned to exactly one RDO, identified by a three-digit code, and only that office can pull up your file or process your transactions. Knowing your RDO BIR assignment matters because another district office cannot access your records, no matter how convenient its location.
The BIR runs more than a hundred RDOs nationwide, grouped under broader Revenue Regions. Each one processes returns and registrations, audits taxpayers in its area, collects income tax, the 12% value-added tax, and percentage taxes, and issues clearances. Because registration records are not centralized, your RDO is effectively your permanent tax home until you formally transfer.
How To Find Your RDO Code
Your RDO code is a three-digit number you need on almost every BIR form. If you don’t know yours, there are four reliable ways to check.
- Look at your original registration form. Employees filed Form 1902, self-employed individuals filed Form 1901, one-time taxpayers filed Form 1904, and anyone who has transferred filed Form 1905. The code is printed on your copy.
- Ask your HR department. Employers submit Form 1902 when they hire you, so HR usually has the code on file.
- Call the BIR Customer Assistance Division at 8538-3200 and ask them to look it up.
- Walk into any RDO and request a TIN verification slip. An officer can pull your code and home RDO in minutes.
The BIR publishes a full directory of codes by Revenue Region, mapping each to a specific city or municipality. Codes start at 001 (Laoag, Ilocos Norte) and cover the whole country, with some lettered sub-codes like 21A and 21B where a district has been split. Filing with the wrong code delays processing or misroutes your return, so verify before submitting anything.
How Your RDO Is Assigned
The National Internal Revenue Code requires every person subject to internal revenue tax to register with the RDO that has jurisdiction over their location.1Chan Robles Virtual Law Library. National Internal Revenue Code of 1997 – Title III, Chapter VIII What that means in practice depends on your taxpayer category:
- Employees earning purely compensation income register with the RDO covering either their residence or their place of employment.2Bureau of Internal Revenue. BIR Form 1902
- Self-employed individuals and professionals register their head office at their residential address; any branch is registered at its business address.3Supreme Court E-Library. BIR Revenue Regulations No. 5-2010
- Corporations, partnerships, and other entities register at the business address on file in the BIR’s Integrated Tax System, with branches registered separately at their own locations.3Supreme Court E-Library. BIR Revenue Regulations No. 5-2010
- One-time taxpayers and those registering under Executive Order 98 use their residential address.
If you keep a head office plus branches or other facilities, each location registers with the RDO covering it. The Tax Code reads “facility” broadly, so sales outlets, production sites, warehouses, and storage locations all count.1Chan Robles Virtual Law Library. National Internal Revenue Code of 1997 – Title III, Chapter VIII
Registering With Your RDO
Section 236 of the NIRC sets the registration deadline: within ten days of employment, on or before the start of business, before payment of any tax due, or before filing a required return, whichever comes first.1Chan Robles Virtual Law Library. National Internal Revenue Code of 1997 – Title III, Chapter VIII Which form you file depends on who you are.
Form 1901 — Self-Employed and Mixed-Income
Form 1901 covers self-employed individuals, sole proprietors, professionals, mixed-income earners, non-resident aliens engaged in trade or business, and estates and trusts. You’ll need a government-issued ID showing your name, address, and birthdate (PhilID or ePhilID, passport, or driver’s license). If your ID does not show your address, bring separate proof of residence or business address. PRC-regulated professionals bring a valid PRC ID. Registered business names require a DTI certificate. Budget ₱30 for the documentary stamp tax on your Certificate of Registration. If someone else is filing for you, bring a Special Power of Attorney and IDs for both parties.4Bureau of Internal Revenue. BIR Form 1901 – Application for Registration
Form 1902 — Employees
Employees earning purely compensation income file Form 1902 through the RDO covering their residence or place of employment.2Bureau of Internal Revenue. BIR Form 1902 Bring at least one government ID. Married female employees should also bring a marriage contract. First-time job seekers need a barangay certification confirming residency and first-time job-seeker status.5Bureau of Internal Revenue. Application for Taxpayer Identification Number
Form 1904 — One-Time and EO 98
Form 1904 is for one-time taxpayers and anyone getting a TIN under EO 98 for government transactions. Filipino citizens need one government-issued ID. Foreign nationals submit the bio page of their passport, including entry and departure stamps, and if using a representative, an apostilled or embassy-authenticated Special Power of Attorney.5Bureau of Internal Revenue. Application for Taxpayer Identification Number
Form 1905 — Updates and Transfers
Form 1905 is the update form. Use it to transfer RDOs, change your business type or address, or cancel registration.
Transferring to a Different RDO
When you change employers, move house, or relocate your business, the NIRC requires you to update your registration.1Chan Robles Virtual Law Library. National Internal Revenue Code of 1997 – Title III, Chapter VIII The mechanism is Form 1905, and the specifics depend on what changed:
- If you changed employers, your new employer notifies its RDO by submitting your completed Form 1905.3Supreme Court E-Library. BIR Revenue Regulations No. 5-2010
- If you’re an employee starting a business and the business address sits under a different RDO, you file with the RDO covering the business address.3Supreme Court E-Library. BIR Revenue Regulations No. 5-2010
- If your employer relocates, all employees registered under the old RDO transfer at the same time once the employer’s own transfer is complete.3Supreme Court E-Library. BIR Revenue Regulations No. 5-2010
To file the transfer yourself, complete two original copies of Form 1905, marking the new RDO you want to be assigned to. Submit to your current (old) RDO with a photocopy of your existing Certificate of Registration (Form 2303), a government-issued ID, and proof of the new address such as a lease or utility bill. Corporations and partnerships also submit amended SEC-registered Articles of Incorporation reflecting the new address, along with a board resolution authorizing the change.
The old RDO reviews the request, checks for unpaid taxes, open audits, or unfiled returns, and if everything is clear, approves the transfer and forwards your records. Straightforward transfers take about a week. Cases with pending compliance issues can stretch to several weeks.
One warning worth taking seriously: people often switch jobs or move, then start transacting with whichever RDO is nearest without filing Form 1905. That does not work. Your records stay locked at the old RDO until the transfer is formally processed, and the new office literally cannot open your file.
What You Can Do Online
The BIR now runs several digital services that cut down on trips to the district office.6Bureau of Internal Revenue. Bureau of Internal Revenue Official Website The Online Registration and Update System (ORUS) at orus.bir.gov.ph handles end-to-end registration and updates; EO 98 and one-time transaction applicants can create an account, complete the form, and upload documents there.5Bureau of Internal Revenue. Application for Taxpayer Identification Number NewBizReg is an alternative portal for new business registrations. The Electronic Filing and Payment System (eFPS) and eBIRForms let you file returns and pay taxes online.
Not every transaction is online yet. Many RDOs still require in-person visits for transfers and audit-related work. For routine filings and payments, though, the digital tools save real time.
Annual Fee, Certificate of Registration, and Penalties
Anyone engaged in business or practicing a profession pays a ₱500 annual registration fee for each separate establishment where sales occur. The fee is due on initial registration and every year after, on or before the last day of January. Cooperatives, employees earning purely compensation income, and overseas workers are exempt.1Chan Robles Virtual Law Library. National Internal Revenue Code of 1997 – Title III, Chapter VIII
Once registered, you receive a Certificate of Registration (Form 2303) showing your TIN, registered name, RDO code, tax types, and the invoices or receipts you’re authorized to issue. It must be displayed prominently at your place of business.
Registration violations carry real penalties.7Bureau of Internal Revenue. Annex C – Schedule of Compromise Penalties Failure to register a branch or facility carries a criminal fine of ₱5,000 to ₱20,000 plus six months to two years’ imprisonment, with compromise amounts running from ₱2,000 in third-class municipalities to ₱20,000 in cities. Failure to pay the annual registration fee or display your Certificate of Registration is punishable under Section 275 by a fine of up to ₱1,000 or up to six months’ imprisonment; the compromise is ₱1,000. Failure to file information returns or submit required documents costs ₱1,000 per item, capped at ₱25,000 per calendar year. BIR officers do run compliance sweeps that check for displayed certificates, so an unposted Form 2303 is an avoidable ₱1,000 hit.