BIR Form 2303 or the Certificate of Registration: The Key Tax Compliance Document for PH Businesses [2026 Update]

Last updated on February 10, 2026

The BIR Certificate of Registration is one of the documents any aspiring entrepreneur must secure before opening doors to customers. It’s effectively the birth certificate of any business from the perspective of tax compliance in the Philippines, as it is the trigger point of the business’s tax obligations.

That’s why we have published our own explainer below on everything you need to know about BIR Form 2303 and how to get the Certificate of Registration!

The BIR Form 2303 or the Certificate of Registration (COR)

It is not uncommon for confusion to arise around the labeling of the BIR Form 2303 or the Certificate of Registration.

Simply put, the BIR Form 2303 is the Certificate of Registration!

The reference to BIR 2303 is simply the BIR’s reference code for the formal document. You will find this reference in the top-left corner of the BIR Form 2303.

The document, however, is formally named the “Certificate of Registration”, which appears at the top and center of the BIR Form 2303. The abbreviation COR is simply a shorthand for the formal name.

BIR Form 2303 is commonly referred to as the COR in practice. Throughout this article, we will use BIR Form 2303 and COR interchangeably when referring to this important tax compliance document.

What is BIR 2303 or COR?

The BIR Form 2303 or the Certificate of Registration is the official document that registers a business as a taxpayer with the Philippines’ tax authority – Bureau of Internal Revenue. Hence, it grants business owners the legal right to operate a business in the Philippines.

The BIR Certificate of Registration outlines and confirms the specific tax obligations of the relevant business, which can vary depending on the type of business being registered and the information provided during the registration process.

The BIR 2303 is proof that an individual or company running or intending to run a commercial business in the Philippines has gone through the required processes to register their business.

Depending on the type of business being set up, the first step of the company registration process may be to register with the Department of Trade and Industry (DTI), the Securities and Exchange Commission (SEC), or the Cooperative Development Authority (CDA).

Once a business has performed the initial registration with the primary government agency (i.e., DTI, SEC, or CDA), it can then proceed with the tax registration with the BIR. The COR is the document that a business receives at the end of this BIR registration process.

Certificate of Registration vs Business Permit

Firstly, it is important to understand that the COR is an entirely different document and involves a completely different process than the Business Permit. Both the Business Permit and the COR are requirements for businesses who wish to operate in the Philippines, which explains why they are often confused with each other.

Here’s the key difference to keep in mind between the COR and the Business Permit:

This means you should be aware of Business Permit requirements and renewal processes. Do you know everything you need to know about Business Permits yet?

Who Needs to Get a Certificate of Registration from the BIR?

As mentioned above, the BIR Form 2303 is a requirement before any business can start operating in the Philippines. It doesn’t matter what the size or nature of your business is, if you’re operating for a commercial purpose, you must be registered with the Philippines’ tax authorities.

Who Needs to Get a COR?

1. All business entities in the Philippines, including:

• Sole proprietorships
• Partnerships
• Cooperatives
• Domestic corporations
• Foreign corporations

2. All professionals earning income outside of employment, such as:

• Self-employed individuals
• Freelancers
• Consultants

3. All types of businesses, regardless of size or platform:

• Online sellers
• Large corporate entities with significant revenues

Remember, not having a Certificate of Registration doesn’t exempt your business from taxes. Without it, your business is considered non-compliant by the BIR. Don’t make tax compliance mistakes like this so you can avoid penalties and fines for non-registration and non-payment of taxes.

What Information is Included on the COR?

The contains a significant level of detail outlining the specific compliance obligations of the BIR registered business, including the following:

• The Tax Identification Number: This is commonly referred to as the “TIN” of the registered business. A TIN is required for all tax filings submitted or processed by any business. A TIN is issued by the BIR once the application for registration has been approved (BIR Form 1903 in the case of corporations and BIR Form 1901 for self-employed).

• Registered Name: This confirms the actual name of the business that has already been registered with the DTI or the SEC. If the business is a sole proprietorship or a freelancer/consultant, this would be the full personal name of the individual registering the business. Such businesses may also operate under a “trade name” – see below.

• Registration Date: This confirms the exact date on which the business was registered. The specific date of registration is extremely important as it identifies the date from which the company’s tax obligations arise.

• Registered Address: All businesses must have an official registered address. All official BIR correspondence will be issued to this address. If a business intends to change address, it is important that this change of address is notified to and registered with the BIR through a formal update process. This can be an important consideration for businesses that use a co-working space or virtual office as their registered address.

• Registered Tax Categories: The BIR Certificate of Registration is the key document for a company to understand which tax categories the business is registered for and required to comply with.
  Below are a list of the more common tax categories that PH business can generally expect to see on their COR (this may vary depending on company’s registration preference:
  • Expanded Withholding Tax (Monthly, Quarterly, Annually)
  • VAT (Quarterly)
  • Percentage Tax (Quarterly)
  • Withholding Tax on Compensation (Monthly and Annually)
  • Income Tax/Corporate Tax (Quarterly and Annually)

• Line of Business: This section identifies the specific activities for which the business has been registered to pursue. A BIR designated code will be provided which will relate to the line or category of business. It is up to the representative to ensure they are registering the business under the correct activity. This is particularly important in the Philippines where different business activities/industries have different rules/limitations (e.g. ownership, foreign involvement, etc)

• Trade Name: If the business is trading under the same name as its Registered Name (see above), the Trade Name will be the same as the Registered Name. However, this will differ if the business wishes to trade under a separate name. For example, as mentioned above, a sole proprietorship, individuals may wish to trade under a different name and not their own personal name.

What is the COR’s Importance for Businesses?

Below are some key reasons why obtaining a COR is a crucial requirement for PH businesses:

1. First and foremost, if you run a business for a commercial purpose in the Philippines, you are statutorily obliged to apply for and obtain a COR for your business and register as a taxpayer. So, from a tax compliance perspective, it is essential for a business to obtain a COR immediately after the business is registered with the SEC/DTI/CDA and maintain the COR throughout the company’s lifetime.

2. For various corporate activities being undertaken by a business, it will be necessary to provide a COR to evidence that the business is properly set up and registered in the Philippines. For example, SEC filings, lease agreements, supplier or partner engagements, tax filing systems (e.g. eFPS, etc).

3. The COR is regularly requested by new clients as part of their Know Your Client (KYC) process.

4. It is standard practice for financial institutions in the Philippines, such as banks and financing/lending companies, to request a company’s COR prior to letting a business open an account or profile with the particular institution.

5. As your business grows, you may wish to raise funds or take on a strategic investor. Any party interested in becoming involved in your business is likely to request receipt of the COR, in addition to various other corporate documentation, as part of the due diligence process. If the business cannot produce a COR upon request, this will surely raise a due diligence red flag for an investor, bank or any other form of stakeholder.

6. If your business has shareholders, you owe it to them to ensure the business is fully compliant and governed properly.

7. Even if your business doesn’t have a COR, the BIR can still investigate the business. Just because the business is not properly registered as a taxpayer, that doesn’t mean that it is exempt from paying taxes in the Philippines! If the BIR becomes aware that your business is not properly registered with the BIR, there can be fines, penalties and significant tax audits for non-compliance.

How to Get Certificate of Registration from the BIR?

The East of Paying Taxes Act has made the process of filing taxes for businesses in the Philippines much simpler. Let’s go through every aspect.

BIR COR Requirements

First, let’s talk about the BIR’s requirements for Certificate of Registration:

Sole Proprietors:

• Valid government-issued ID
• DTI Certificate of Registration
• BIR Form 1901 – Application for Registration
• BIR Form 1906 – Application for Authority to Print Receipts and sample of Principal Receipts/Invoices.
• Certificate of Authority (for Barangay Micro Business Enterprises)
• Special Power of Attorney, if applicable

Partnerships and Corporations:

• Copy of SEC Certificate of Incorporation. In the Philippines, when registering a corporation for tax, it is first necessary to register your business name and relevant corporate documentation (by-laws, Articles of Incorporation, etc) with the SEC.
• Articles of Incorporation (this will have already been registered with the SEC).
• Secretary’s Certificate of Board Resolution
• BIR Form 1903 – Application for Registration
• BIR Form 1906 – Application for Authority to Print Receipts and sample of Principal Receipts/Invoices.

Cooperatives:

• Cooperative Development Authority (CDA) Certificate of Registration
• Articles of Cooperation
• Secretary’s Certificate
• BIR Form 1903 – Application for Registration
• BIR Form 1906 – Application for Authority to Print Receipts and sample of Principal Receipts/Invoices.

Foreign Corporations

• Any Apostille official documentation issued by an authorized government body (e.g., Articles of Incorporation, Certificate of Tax Residency, etc.)
• Apostille Board Resolution or Secretary’s Certificate
• Government-issued ID of a signatory or authorized representative (with selfie photo of the representative holding the ID)
• BIR Form 1903 – Application for Registration

Feel free to check out the BIR website for the full list of BIR registration requirements.

The Application Process

You have two options to process your BIR Certificate of Registration:

• In person at a BIR Revenue District Office (RDO)
• Online via NewBizReg Portal or PH Business Hub Portal

How to Get BIR Form 2303 (COR) at BIR RDO

1. Go to the RDO that has jurisdiction over your business’s address. Submit your BIR Form and documents. For foreign-owned corporations, process your application at BIR RDO 39 – South Quezon City.
2. For corporations and partnerships, pay the Documentary Stamp Tax using BIR Form 2000. (Note: sole proprietors and freelancers are exempt from paying the Documentary Stamp Tax).
3. Wait for the BIR’s notice that your BIR 2303 is ready. Pick up your COR at the RDO. For certain parties, you may be able to verify the validity of your COR using your TIN and RDO code at the BIR eTINQuery.

How to Get BIR Form 2303 (COR) via Online Application

Philippine entities such as foreign-owned corporations and domestic corporations, may process their application for BIR COR online.

Via NewBizReg Portal

1. Prepare all the required documents and BIR Form. Scan them as PDF files not exceeding 4MB in total for all files.
2. If you’re an existing taxpayer (with TIN), pay the Documentary Stamp Tax through eDST or one of the accredited ePayment channels. If you don’t have a TIN yet, wait for the BIR RDO’s email for instructions on when to pay.
3. Proceed to the NewBizReg Portal. Under Step 4, enter your business address to get your RDO’s e-mail information.
4. Attach all the required documents in the email.
5. Wait for the RDO’s email about when you can pick up your COR. Pick up your COR at the RDO. Use your TIN and RDO code at the BIR eTINQuery.

Via PH Business Hub Portal

1. After incorporation with the Securities and Exchange Commission, you will receive an email link to PH Business Hub Portal wherein you can sign-up and create an official account.
2. Log-in to your PH Business Hub Portal Account and answer the tax type questionnaire.
3. Pay the documentary stamp tax online.
4. Download your system-generated BIR COR.

Displaying the COR in the Business

Once received, businesses have a mandatory obligation to display the COR clearly within their place of business.

At the bottom of each COR issued by the BIR, it will be quite standard for the following wording (or a variation of this wording) to appear:

“This Certificate must be exhibited conspicuously in the place of business”

In corporate offices, many businesses display the COR in the proximity of the reception area or on the entrance or door of the business.

In restaurants or retail outlets, businesses will usually display the COR near the cash register, POS or entrance.

Next Steps?

Obtaining the COR is just one step along the way on the registration process for a new business in the Philippines. However, there are a number of tasks that must be completed once the COR is obtained by a business.

After receiving the COR, a business is still required to apply for an Authority to Print Invoices/Receipts through the BIR eFPS (Electronic Filing and Payment System) so they can issue sales invoices in compliance with tax laws. The application should be completed within 30 days from the date of the COR. Generally, this can be done at the same time as applying for the COR.

The business will also be required to register with the BIR for the Books of Accounts or the Digital Books of Accounts. Again, this should be completed within thirty (30) days from the date of the COR.

Remember also – from the moment your business is registered with the BIR, it’s required to make tax filings! From the date of the COR, the business is a registered taxpayer in the Philippines and must comply with its tax filing obligations. This is the case even if the business is not incurring revenue or expenses!

So, it is important to get your accounting team or outsourced accounting services provider on the case as early as possible!

How Much is the BIR Certificate of Registration?

Together with the application for a COR, PH businesses are required to file and pay a registration fee. How much is the BIR registration fee for Form 2303? It may come as a surprise, but the answer is none because the annual fee has been waived.

Prior to January 2024, businesses are required to renew their registration by filing BIR Form 0605 and pay Php 500 every year. However, as per the mandate of the Republic Act No. 11976 or the “Ease of Paying Taxes Act,” this annual registration fee is no longer required for both new and existing businesses.

So, instead of renewal, businesses only need to update their COR when necessary.

Updating the COR

While the BIR 2303 or COR does not need to be renewed, there may still be a need to update the COR during the lifetime of a PH business.

The main reason a business needs to update their Certificate of Registration is when there is a change in their business.

The most common change is the tax categories for which the business is registered. For example, a company may have initially registered the business for Percentage Tax. As the business progresses and sales/revenue increases, the business may exceed the monetary threshold for Percentage Tax registration (i.e. gross annual sales and/or receipts exceeding Php 3,000,000). At this point, the company will have an obligation to update their tax registration and transition from Percentage Tax to VAT and formally update the BIR through Form 2303.

Businesses must also update the BIR Form 2303 in case of any changes in its corporate details, including registered address, company name, company purpose; or if there is a missing tax type.

In short, PH companies are obliged to update the BIR through Form 2303 of any changes within their company.

CloudCFO: Tax Compliance Services for Startups and SMEs in the Philippines

The BIR Certificate of Registration is one of the key requirements for business entities who wish to operate in the Philippines. While the BIR has made the registration process simpler, it still involves a lot of details. You can avoid entanglements and get your BIR 2303 faster with expert tax services.

CloudCFO offers outsourced tax and compliance services for businesses across Metro Manila and the Philippines. We’ll help you with every step of the process so you can rest assured that you or your business is 100% tax compliant.

Visit cloudcfo.ph or contact the CloudCFO team directly by emailing hello@cloudcfo.ph. Tell us about your business and your specific financial requirements and we can then identify how the CloudCFO Team can add real value and support for the finance function of your business here in the Philippines!