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Home » Government » How to Check Your RDO Code Online (2026 Updated Guide)

How to Check Your RDO Code Online (2026 Updated Guide)

Luis Reginaldo Medilo by Luis Reginaldo Medilo
January 6, 2026
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Verified Accurate: This guide was manually tested and updated on January 6, 2026 by our technical team.

As a Filipino citizen, it’s your patriotic duty and responsibility to pay your proper taxes. Part of being a good taxpayer is knowing your RDO code. If you don’t know what your RDO code is, the BIR provides a quick and easy way to check it online. Let’s get started!

⚡ Key Takeaways (Updated for 2026)
  • RDO Finder Tool: The BIR provides a web-based RDO Finder that allows taxpayers to instantly verify their Revenue District Office and corresponding code.
  • Requirements: To use the online tool, you will need to provide your Tax Identification Number (TIN), full name, birthdate, and sex assigned at birth.
  • Alternative Methods: If the online portal is unavailable, you can also determine your RDO by calling the BIR Customer Assistance Hotline or by emailing their official contact address.
  • Why It Matters: Knowing your RDO code is essential for accurately filling out mandatory tax documents, such as BIR Form 1905 and other registration forms.
✓ Tested by tech expert Luis Reginaldo Medilo using the BIR RDO Finder website and a Windows 11 computer.

RDO stands for Revenue District Office, which is a branch or unit of the Bureau of Internal Revenue (BIR) that provides services to taxpayers within a certain area or jurisdiction. Each RDO is represented by a code that consists of three (3) numbers or characters. This RDO code is normally used in filling out taxpayer forms such as Form 1905.

Most individual taxpayers already know their RDOs. You can usually find your RDO in your taxpayer registration form (Form 1901) or by asking your employer. To know your RDO code, check out this article for the complete list of BIR Revenue District Offices and their corresponding codes.

But what if you don’t know (or forgot) your BIR RDO? The good news is that you can use the web-based RDO Finder to instantly check and verify your RDO and its corresponding code. You don’t even need to call the BIR or send them an email.

So before I went to the BIR office, I took the time to verify the correct RDO. I took me less than 5 minutes on my Windows 11 computer.

Table of Contents

  • How to Check Your RDO Online via the RDO Finder
    • Step 1: Open the RDO Finder website
    • Step 2: Enter your taxpayer details
    • Step 3: Take note of your RDO code
  • Other Ways to Check Your RDO Code
    • Call the BIR Customer Assistance Hotline
    • Email the BIR
    • Check your BIR Form 1901
  • Frequently Asked Questions
    • What should I do if the RDO Finder says “No Record Found”?
    • Can I change or transfer my RDO online?
    • Why does my RDO code matter for my job?
  • Wrapping Up

How to Check Your RDO Online via the RDO Finder

The RDO Finder is a free online tool by the BIR that lets you check your assigned Revenue District Office quickly and easily.

To use the RDO Finder, you must provide your tax identification number (TIN). Forgot your TIN? Read this article to learn how to retrieve your lost or forgotten TIN.

Now that you have your TIN, I’ll teach you how to check your RDO code through the Internet.

Step 1: Open the RDO Finder website

The first thing to do is to open the RDO Finder website at http://revie.bir.net.ph/rdo-finder.

In case you encounter a “Your connection is not private” error, simply click the “Advanced” button and then click “Proceed to revie.bir.net.ph (unsafe).”

This error might be caused by a misconfiguration with the SSL certificate or an expired certificate. The BIR site often uses a self-signed certificate that browsers don’t recognize.

Step 2: Enter your taxpayer details

Once the RDO Finder is open on your browser, enter your taxpayer information as follows:

  1. TIN – Enter your 9-digit tax identification number (TIN). Please don’t include hyphens or dashes.
  2. First Name – Provide your first name.
  3. Middle Name – This is completely optional.
  4. Last Name – Enter your surname or family name.
  5. Sex assigned at birth – Select whether you’re male or female.
  6. Birthdate – Indicate your date of birth in MM/DD/YYYY format. For example, October 15, 1990 is 10/15/1990. You can use the date picker by clicking the calendar icon on the right.
How to check your RDO code online

Double-check to ensure that all details are correct and accurate. After completing the required entries, click “Submit Form.”

Step 3: Take note of your RDO code

If you provided the correct information based on BIR records, the Revie chatbot will show you the RDO that you’re registered under, as well as the corresponding RDO code.

RDO Finder result

Save or copy your RDO code so that you don’t have to repeat the process. Ideally, you can take a screenshot of the result on your mobile phone.

Click “I’m good, thanks!” to end your session. You may now close the browser tab or window.

Other Ways to Check Your RDO Code

If, for some reason, the RDO Finder website is not working for you (or if you don’t feel confident using it), you can still obtain your RDO code through other means.

Call the BIR Customer Assistance Hotline

For immediate assistance in finding your RDO, you may call the BIR Customer Assistance Division at (02) 8538-3200. Airtime and long-distance charges may apply.

When calling the BIR, you may be asked to provide your TIN, complete name, date of birth, and other personal information, so have these details ready. Prepare a pen and a piece of paper in which to write down your RDO code.

If you wish to call the BIR using your mobile phone, you may read this article to learn how to call a landline number.

Email the BIR

Another way to check your RDO code online is to email the BIR at [email protected].

Here’s a sample email that you can use (don’t forget to replace the details with your own):

Dear Sir/Ma’am,

Requesting your assistance to verify my RDO, please.

The following are my taxpayer information:

  • Name: Juan dela Cruz
  • Date of Birth: January 1, 2000
  • Tax Identification Number: 123456789

I have attached a copy of my government-issued ID for your verification.

Should you need further details, please let me know. Thank you.

Regards,
[Complete Name]

Attach a soft copy of your government-issued ID (e.g. National ID, UMID, passport) and send your email to [email protected].

Check your BIR Form 1901

Perhaps you’ve kept a copy of your BIR Form 1901 (Application for Registration). In that case, you may want to check it for your RDO code. The code is located under Part 1 (Taxpayer Information) and Section 5 of the form.

If your employer registered you with the BIR, you can ask the HR department for your RDO. If you want to transfer your RDO from your employer to your residence, you can do that by following the steps outlined in this article.

Frequently Asked Questions

What should I do if the RDO Finder says “No Record Found”?

If the BIR RDO Finder cannot find your details, it means that there is a slight mismatch in the data you provided compared to the BIR database. Make sure that you entered your correct name and date of birth. Also check that there are no hyphens in your TIN.

Can I change or transfer my RDO online?

Yes, you can change or transfer your RDO via the Online Registration and Update System (ORUS). Although the RDO Finder is only for checking your code, you can use the ORUS portal to file a transfer (BIR Form 1905) without visiting the BIR office.

Why does my RDO code matter for my job?

Your employer needs your correct RDO code to ensure that your taxes are remitted to the right revenue district office. If your RDO is registered in a different city than your workplace (or your residence), it could cause “jurisdictional snags” that might delay the processing of your BIR Form 2316 or tax refunds.

Wrapping Up

There’s no need to visit the nearest BIR office just to inquire about your assigned Revenue District Office or RDO. You simply fill out an online form on the RDO Finder website and you’ll immediately know the RDO that you’re registered under.

Should you have any further questions and concerns, don’t hesitate to call the BIR hotline (02) 8538-3200 or email [email protected].

Tags: BIR
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Luis Reginaldo Medilo

Luis Reginaldo Medilo

Luis is the founder and editor-in-chief of Tech Pilipinas. A former Electronics Engineering student and Department of Science and Technology (DOST) scholar, he is passionate about technology and how it can change the world for the better. Luis has more than 25 years of hands-on experience with computers and the Internet.

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