Understanding DP Charges in Demat Accounts and How BO ID Works in CDSL

By Richa Jain     05-12-2025     12

DP charges are a crucial yet often misunderstood aspect of trading through Demat accounts. These fees are levied by depository participants whenever securities are sold or transferred out of the Demat account. 

Understanding DP charges helps investors/traders manage their costs effectively and avoid surprises in their trading expenses. This blog will also clarify the role and importance of the BO ID in CDSL, a unique identifier essential for security and transaction management within Demat accounts.

What Are DP Charges?

Depository Participant (DP) charges are fees imposed whenever securities such as shares or ETFs are sold from a demat account. These charges are not linked to buying, only to selling transactions. 

Every time you execute a sell order, a fixed DP fee per security (irrespective of the quantity sold) is deducted by your Depository Participant. It is the intermediary that manages your demat account relationship with the main depository (CDSL or NSDL). 

It's important to know that both the depository and the DP may levy a portion of these charges, and that the DP charge will usually show up within a couple of days after you sell a stock.​

Components and Calculation of DP Charges

The main elements determining DP charges include the flat per-script fee, which does not change with transaction volume, and any taxes or minor processing fees. 

When you sell shares from your demat holdings, you incur a charge per ISIN, regardless of whether you’re selling one share or hundreds. 

For instance, if you sell two different stocks on the same day, you'd be charged separately for each. These charges vary across different brokers and DPs, so it’s wise to check your provider’s specific fee structure.​

Why Are DP Charges Levied?

DP charges are essentially compensation for the depository and its participants for maintaining your demat account. It ensures safe electronic transfers and handles the backend settlement process. 

They help cover the administrative and operational expenses involved in the secure transfer of shares from your demat account to the buyer’s. This means that, unlike brokerage, which is tied to transaction value or frequency, DP charges are independent of trade size. 

Understanding CDSL, DP ID, and BO ID

The Central Depository Services Limited, or CDSL, is one of the two primary securities depositories in India. When opening a demat account with CDSL, your broker or financial institution becomes your Depository Participant. 

Every such participant gets a unique DP ID, which identifies them in the CDSL system.​

Your Beneficiary Owner Identification Number, or BO ID, is essential for understanding what BO ID in CDSL. The BO ID is a 16-digit unique number assigned to every individual demat account holder under CDSL. 

This number is split into two parts. The first eight digits are the DP ID, and they identify your Depository Participant. The last eight digits are your client ID, and they establish your unique identity in the system. 

Importance and Use of BO ID in CDSL

The BO ID is indispensable for all transactions, including buying, selling, pledging, or transferring securities between accounts. It acts as your account’s primary identifier in the depository. 

It ensures that all trades and securities movements are securely attributed to you. When you apply for IPOs, initiate off-market transfers, or use online authorisation services, you’ll be asked to provide this 16-digit BO ID.​

Besides security and transaction convenience, BO ID helps prevent fraud by making unauthorised transfers virtually impossible. If you ever change brokers and open another demat account, you'll get a brand new BO ID for the new account, while your old BO ID can be kept active with its holdings or transfer shares to a new demat account. 

How to Find and Protect Your BO ID

Your BO ID can be found in your account details on your broker’s web platform or mobile app. It can also be seen on your demat account statement issued by CDSL.  

Always protect your BO ID, just as with any financial identifier. Do not share it publicly or with untrusted sources, since it can be used to access key transactional information.​

Final Thoughts

DP charges and BO ID play integral roles in demat account management. Knowing how DP charges are applied helps avoid unpleasant surprises on your transaction statements.

Similarly, understanding your CDSL BO ID enables easy trading and enhanced investment security. For every investor using demat accounts in India, these essentials help with confidence in the investment journey.

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