How to Know Your BIR RDO Code

Key Takeaways

1. Your RDO code is basically what connects your TIN to whichever BIR office handles your records in your area
2. You'll need this code pretty much every time you deal with taxes, want to get a loan, or set up a business
3. There are several easy ways to find your code: both online and offline
4. If you move or change jobs, you may need to transfer to a new RDO
5. The BIR has over 100 Revenue District Offices, but each taxpayer is assigned to only one

What Is a BIR RDO Code and Why Does It Matter?

RDO code meaning is straightforward: RDO stands for Revenue District Office. This is your assigned BIR "home base" where all your tax records are stored and managed. Every RDO has a unique three-digit code that can be numeric or alphanumeric, which gets linked to your TIN when you first register.

Since BIR records are decentralized, each RDO maintains its own database of registered taxpayers. This means you can only access your information and conduct transactions with the office where you're currently registered. Your RDO code determines:

• Where your tax records are stored
• Which office processes your tax returns and certificates
• The branch that handles your business registration updates

3 Ways to Check Your RDO Code

Wondering how do I find my RDO code? Here are the most reliable methods to get BIR RDO code information:

Method 1: Check your BIR registration forms

The easiest way is to look at your existing BIR documents. Your RDO code appears in the upper-right corner of these forms:

• BIR Form 1901 (for self-employed individuals)
• BIR Form 1902 (for employees - ask your HR department)
• BIR Form 1903 (for corporations)
• BIR Form 1904 (for one-time taxpayers and those under EO 98)
• BIR Form 1905 (for RDO transfers)
• Any Certificate of Registration (Form 2303)
• Previously filed tax returns with BIR stamps

Method 2: call the BIR hotline

For immediate assistance, contact the BIR Customer Assistance Division.Important: for security reasons, BIR only provides RDO codes over phone calls, not via email.

BIR hotline numbers:

• 8538-3200
• 8981-7478
• 8981-7479
• 8981-7452
• 8981-7003
• 8981-7046
• 8981-7040
• 8981-7030
• 8981-7020
• 8981-7419

When calling, prepare these details for verification:

• Your full name (as registered with BIR)
• Your complete TIN
• Your birthdate
• Your mother's maiden name
• Other personal details for identity verification

Method 3: Visit any BIR office

This is the most reliable method. Visit any BIR office and request a TIN verification slip:

1. Request the slip from any BIR officer
2. Fill out completely with your full name (maiden name if married), birthdate, and address
3. Submit to the officer who will check records and stamp your slip
4. Receive your information - the stamped slip shows your TIN, RDO code, and RDO location

How to Know Which RDO You're Registered With

Many Filipinos only discover they need to know your RDO when applying for loans or handling business matters. The BIR still uses old-school methods with their record-keeping, so you'll have to go with one of those ways we mentioned earlier.

Here's something that catches people off guard: if you've switched jobs or recently moved, chances are you're still linked to your old RDO. This happens all the time and can really mess up your tax dealings in your new location.

Updated List of RDO Codes by Region (2025)

Understanding how to know BIR branch code information helps identify which RDO serves your area:

Metro Manila (Sample RDO Codes)

• RDO 39 - South Quezon City
• RDO 44 - Taguig-Pateros (BGC area)
• RDO 45 - Makati North
• RDO 50 - South Makati (Ayala Avenue, CBD)
• RDO 51 - Manila North (Binondo, Tondo)
• RDO 52 - Manila South (Malate, Ermita)
• RDO 53 - Mandaluyong
• RDO 54 - Pasay North
• RDO 55 - Pasay South (MOA area)

Major Cities Outside Metro Manila

• RDO 80 - Cebu North
• RDO 81 - Cebu South
• RDO 82 - Mandaue
• RDO 90 - Iloilo City
• RDO 100 - Cagayan de Oro
• RDO 113 - Davao City
• RDO 120 - General Santos
• RDO 130 - Zamboanga City

Central Luzon

• RDO 21A - Pampanga North (San Fernando, Angeles)
• RDO 21B - Pampanga South
• RDO 22 - Tarlac
• RDO 23 - Bataan

How to Transfer Your RDO When Moving or Changing Jobs

Life changes happen! If you move cities or relocate your business, you may need to transfer your RDO. Here's how to get BIR RDO code updated:

When You Need to Transfer:

• Relocating your principal place of business
• Moving to a different city or province
• Changing your business address
• Switching employment locations

Transfer Process:

1. Visit your current RDO and request BIR Form 1905 (Application for Registration Information Update)

Prepare required documents: 

• Valid government-issued ID
• Proof of new address (lease contract, utility bill, barangay certificate)
• Your TIN card or documents
• Submit the completed form with supporting documents
• Wait for processing (usually 3-5 business days)
• Verify your new assignment by calling the BIR hotline

Final Thoughts

In this guide, we’ve covered everything you need to know about finding your RDO code.It always happens when you least expect it: you're filling out an important form and they ask for your RDO details. If you don’t have it ready, you can seem unprepared. That’s why it’s smart to check it ahead.

So the smart move is to check this right now, while you're not under pressure. Take five minutes to track down your RDO code. 

Bottom line: how to know which RDO you are registered with doesn't have to be a headache. Once you've got this sorted, you'll feel way more confident handling any business stuff that comes your way.