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What is a BO ID in a Demat Account?

  • Calender10 Dec 2025
  • user By: BlinkX Research Team
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  • BO ID full form is Beneficial Owner Identification Number, a unique 16-digit alphanumeric code assigned to each Demat account holder registered with the Central Depository Services Limited (CDSL). It is used for all transactions related to the account and must be kept confidential to prevent unauthorised access. The first 8 digits represent the Depository Participant (DP) ID with CDSL, while the last 8 digits represent the client ID. For the NSDL depository, the Demat account number starts with "IN," followed by a 14-digit numeric code. In this article, we will understand the BO ID in full form, what BO ID means, and its importance in detail. 

    Importance of BO ID 

    The BO ID is important in investment management for several reasons: 

    • Unique Identity: In the securities market, the BO ID acts like a digital identity of investors. The objective of BO ID is to make sure the shares are safely recorded under the investor’s name. 
       
    • Essential for Transactions: No matter if the investor is buying, selling, or transferring securities, the beneficiary ID ensures that the transactions go to the right Demat account 
       
    • Tracking Holdings: With a BO ID, all the investment records of investors are clear and organised. This makes it easy to monitor their portfolio. 
       
    • Regulatory Compliance: All the market regulators use the BO ID to track the activities of investors to maintain transparency and ensure that all investor records are correct. 
       
    • Receiving Dividends and Bonuses: Based on your BO ID all the gains like dividends, bonus shares, and stock splits are credited to the investor’s account.  

    Table of Content

    1. Importance of BO ID 
    2. How to Find BO ID in Demat Account   
    3. Benefits of BO ID (Beneficial Owner Identification) 
    4. How to Find BO ID in BlinkX? 
    5. Difference between BO ID and DP ID 
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      Conclusion
       

    How to Find BO ID in Demat Account   

    If an investor is looking for a BO ID in Demat account, then they may follow these steps.  

    1. Welcome Letter or Email 

    • When an investor opens a Demat account, their depository participant (DP) sends a welcome letter or email. 
    • This letter or email will contain the 16-digit BO ID, that is usually shown under the section titled “Beneficial Owner ID” or “Demat Account Details.” 
    • Once they have checked their email or welcome letter, they can easily retrieve their BO ID. 

    2. Demat Account Statement 

    • On your registered email ID, you will receive monthly or quarterly Demat statements sent by depository participants.  
    • The beneficiary ID is printed on the first page of the Demat statements, along with your name and account details. 
    • Investors can easily download this statement from their broker’s or DP’s website. 

    3. Online Trading Platform (App or Website) 

    • In many applications or websites provided by the brokers, the BO ID is printed on different sections, like on the profile, account settings, or my account section.  
    • Investors can easily log in and check for labels like BO ID, Demat ID, DP ID + Client ID, or 16-digit account number. 
    • There are some platforms that show the BO ID directly on the dashboard under the Demat details. 

    4. Email or SMS Alerts 

    • Depositories such as Central Depository Services Limited (CDSL) or National Securities Depository Limited (NSDL) send alerts whenever a transaction takes place in an investor’s Demat account. 
    • These messages often include your BO ID or partial BO ID for reference. 
    • One can easily refer to any recent alert to locate their ID. 

    5. Contact Customer Support 

    • If someone is not able to locate their BO ID through any document or app, they can easily contact their broker’s customer support. 
    • After verifying their identity, they will share the respective BO ID with the investor. 
    • Support is available through calls, chat, or email depending on your broker. 

    Benefits of BO ID (Beneficial Owner Identification) 

    BO ID offers various benefits to the Demat account holders. This includes the following: 

    • Facilitates Accurate Corporate Actions: Sometimes companies give extra benefits to their investors, like bonus issues, right issues, or dividends. The BO ID number ensures that these benefits are transferred directly to your account without any errors.  
       
    • Better Protections: The BO ID number prevents mistakes and access to unauthorised people in your account. By using this ID, the system can ensure only you or someone you have authorised can execute transactions. It also keeps a record of all investment activities in your account.
       
    • Unique Identification: Every demat account holder gets a unique BO ID. This unique code ensures all your investment activities are linked to your Demat account. 
       
    • Accurate Record Keeping: The BO ID guarantees the accuracy of reports concerning your investments. By obtaining security ownership and trade transaction statements, the BO ID ensures that the information you receive is reliable and precise.
       
    • Smoother Transactions: BO ID makes buying, selling, and transferring your investments simple. When you want to trade stocks or other securities, this BO ID helps in fast and accurate transactions. It plays an important role in processing your requests. 

    How to Find BO ID in BlinkX? 

    Investors can easily locate their Beneficial Owner Identification (BO ID) in BlinkX by following these steps: 

    Step 1: Visit the official BlinkX website or open the BlinkX mobile app. 

    Step 2: Log in to Demat account using registered username and password. 

    Step 3: After logging in, go to the “Profile” section by clicking on the icon located at the top-left corner. 

    Step 4: Within the Profile menu, look for the Account Details option. 

    Step 5: Open Account Details to view your BO ID displayed along with other Demat account information. 

    After understanding depository and BO ID meaning, let’s understand the difference between BO ID and DP ID 

    Difference between BO ID and DP ID 

    Here’s the key difference between BO ID and DP ID: 

    Aspect 

    BO ID 

    DP ID 

     

    Meaning 

     

    A unique 16-digit number assigned to each demat account holder. It identifies the investor. 

     

    An 8-digit number assigned to the Depository Participant (broker) by the depository (NSDL/CDSL). 

     

     

    Purpose 

     

     

    The BO ID is used to identify the beneficial owner (investor) in the depository system. 

     

     

    The DP ID is used to identify which DP or broker the Demat account is opened with. 

     

     

    Who It Belongs To 

     

     

    This ID belongs to the investor or Demat account holder. 

     

     

    This is for the Depository Participant (broker). 

     

     

    How It’s Used 

     

     

    It is used to track holdings, verify ownership, receive corporate actions, and place security transactions. 

     

     

    This is used by the depository to identify the broker who manages your Demat account. 

     

    Visibility 

     

     

    This is visible on the account profile, Demat statements, or trading app. 

     

     

    This can be seen on the  DP welcome letter, broker profile, or Demat account details. 

     

     

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    Conclusion
     

    Individuals who open a Demat account receive the Beneficial Owner Identification Number (BO ID). It serves as a unique 16-digit identification number, which helps to authorise transactions while trading in the stock market. BO ID is quite important as it enhances transparency, accountability, and efficiency when you trade using an online trading app. It ensures that the owners of securities are identified correctly by establishing a direct link between investors and their holdings. Hence, BO ID in the Demat account safeguards the interests of the investor and prevents fraudulent activities in the stock market.