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what is client id in demat account? | Trackk

2026-04-22 · 3 min read

Sector - Finance
what is client id in demat account? | Trackk

A client ID in a demat account is the unique number used to identify the account holder under a particular Depository Participant, or DP. It forms part of your demat account number and is used to map the securities in that account to you.


The DP ID identifies the broker or Depository Participant. The client ID identifies you.

What does client ID mean in a demat account?

When you open a demat account, your broker or DP gives you an account number. That number has two parts:

  • DP ID

  • Client ID


The client ID is the part that distinguishes your account from other accounts opened with the same DP. In other words, one DP can have many clients, but each client gets a different client ID.

How many digits is the client ID?

The client ID is the last 8 digits of the demat account number.


For example, say this is your demat account number - "2500444926261365".


Then,

  • DP ID would be "25004449"

  • And Client ID would be "26261365"


Where can you find the client ID?


You can usually find it in any place where your demat account number appears, like:

  • Your broker app or web login

  • Demat account profile

  • Account opening email

  • Holding statement

  • Transaction statement

See, the client ID is part of the demat account number, you do not need to search for it separately.


What is DP ID then?

The DP ID is the number assigned to the Depository Participant.


A DP can be your broker, bank, or financial institution through which the demat account is opened. Since every DP has to be registered, each one gets its own DP ID.


Let's go through this again:

  • DP ID identifies the DP.

  • Client ID identifies the investor under that DP.


Is client ID the same as demat account number?

No. The client ID is only one part of the full demat account number. 

Why is client ID important?

The client ID matters because it helps identify your demat account correctly. It is used to maintain the record of your holdings and transactions under the relevant DP. Without it, the account cannot be uniquely mapped to the investor within that DP structure. It is basically one of the core account identifiers attached to your demat account.


Does the format differ in NSDL and CDSL?

Yes, the full demat account number format differs:

  • In CDSL, the account number is numeric.

  • In NSDL, the account number starts with IN.


How to know your client ID quickly

If you want to check it fast, do this:

  • Open your broker app or website

  • Go to account details or profile

  • Find your demat account number

  • Take the last 8 digits. The last 8 digits may start with 0 also.


Conclusion

A client ID in a demat account is the investor-specific part of the demat account number. It is used to identify your account under a particular DP. The DP ID identifies the broker or DP, while the client ID identifies you. In most cases, the client ID is the last 8 digits of the full demat account number.



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