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How to Find Your Demat Account Number and Understand What it Means

21 Mins 22 May 2026 0 COMMENT
How to know your Demat Account number

 

A demat account number is not something most investors look for until they are asked to enter it during investment-related processes. This may happen while applying for an IPO, updating account details, filling service request forms, or completing other demat account paperwork. Some investors confuse it with the client ID, while others are unsure whether their account is linked to NSDL or CDSL.

This number is important because it connects your securities to your account in the depository system. It is used in statements, account updates, IPO records, service requests and other investment-related processes.

This guide explains what a demat account number is, its format, how it differs from the DP ID and Client ID, and how to check a demat account number using common sources.

What is a Demat Account Number?

It is the unique identification number linked to your demat account. A demat account holds your shares and securities in electronic form, similar to how a bank account holds money.

In short, it is a digital wallet for stocks and investments, where securities are credited when you buy and debited when you sell.

Your demat account number confirms where your securities are held and under which investor record, they are maintained.

Why Every Investor Needs to Know This Number

You may need your demat account number while checking account details, applying for IPOs, updating nominee or contact records, matching demat statements, or raising service requests with your broker or DP.

It is also useful for checking whether the correct securities have been credited to your account after a purchase, IPO allotment, bonus issue, or transfer.

Is the Demat Account Number the same as the BO ID?

Yes, for a CDSL demat account, the Demat account number is the same as the BO ID. BO ID means Beneficiary Owner ID. CDSL’s investor booklet states that every demat account has a unique 16-digit demat account number, also known as the Beneficiary Owner ID or BO ID.

In CDSL, this number is made up of the DP ID in the first 8 digits and the Customer ID in the last 8 digits. So, when you see a 16-digit CDSL demat account number, it can be referred to as the BO ID.

What Does a Demat Account Number Look Like?

The demat account number format depends on whether your account is linked to CDSL or NSDL.

Both depositories have their own format, but the purpose is the same: to identify your DP and your investor account.

CDSL Demat Account Number Format

A CDSL Demat account number is a 16-digit numeric number. It does not begin with a letter.

CDSL states that the first 8 digits represent the DP ID and the last 8 digits represent the Customer ID. For example, in a demat account number 12010000 00000001, 12010000 is the DP ID, and 00000001 is the Customer ID.

NSDL Demat Account Number Format

NSDL-linked demat details are commonly shown through DP ID and Client ID. The account numbers are alphanumeric, while CDSL demat account numbers are numeric.

An NSDL demat account number is a 16-character alphanumeric code — 'IN' followed by 14 digits. The first 8 characters (including 'IN') form the DP ID, and the remaining 8 digits are the Client ID.

NSDL also states that after account opening, the DP provides the investor with the DP ID and Client ID, along with the Client Master Report containing demat account details.

How to Tell Whether Your Account is Under NSDL or CDSL

Point CDSL NSDL
Format 16-digit numeric number Starts with “IN” followed by digits
Common reference BO ID DP ID plus Client ID
Example style 1201000000000000 IN followed by 14 digits
How to confirm Check the broker profile, statement or CAS Check the broker profile, statement or CAS
 

Demat Account Number vs DP ID vs Client ID

This is where many investors get confused. Your demat account number, DP ID, and Client ID are connected, but they are not always the same.

What is DP ID in a Demat Account?

DP ID in a demat account refers to the Depository Participant ID. It identifies the broker, bank or financial institution that acts as your Depository Participant.

The DP works as an intermediary between the investor and the central depository, which can be NSDL or CDSL. Each DP is allotted a unique DP ID by NSDL or CDSL.

What is Client ID or Customer ID?

The Client ID or Customer ID identifies the investor within that DP. In simple terms, the DP ID tells you which DP maintains the account, while the Client ID tells you which investor account under that DP belongs to you. So, it is the investor-specific part of the demat account record.

How are These Three Connected

The connection can be understood like this:

Demat account number = DP ID + Client ID or Customer ID

For CDSL accounts, the first 8 digits are the DP ID, and the last 8 digits are the Customer ID. For NSDL accounts, the demat number is generally represented by a DP ID and a Client ID in an alphanumeric format.

Common Confusion to Avoid

Your demat account number is not always the same as the client ID. DP ID alone is also not enough because it identifies the DP, not your complete investor account.

Also, your trading account number is different from your demat account number. A trading account is used to place buy and sell orders. A demat account holds the securities after purchase.

How to Check Your Demat Account Number?

If you are searching for how to find a demat account number, start with the documents and platforms linked to your broker or DP.

Check Your Welcome Email or Account Opening Letter

When your demat account is opened, your broker or DP usually sends a welcome email, an account-opening letter, or a Client Master Report. These documents generally mention your demat account number, DP ID and Client ID.

NSDL’s investor guide also states that after opening a demat account, the DP provides the DP ID, Client ID, and a Client Master Report with demat account-related details.

Check Your Broker App or Web Portal

Most brokers show account details in the profile or account section of their app or website. You may find your Demat account number under the profile, account details, Demat details or depository details section.

This is often the easiest way to find your Demat account number without sifting through old emails.

Check Your Account Statement or CAS

Your demat account statement or Consolidated Account Statement can also show your demat account details.

SEBI explains that CAS is a single combined account statement showing monthly transactions across mutual funds and securities held in demat accounts. SEBI also states that PAN should be updated with the DP or stockbroker to receive CAS.

CDSL and NSDL also describe CAS as a consolidated view of holdings and transactions across demat accounts and mutual funds.

Contact Your Broker or DP Support Team

If you cannot find the number in your app, email, or statement, contact your broker or the DP support team. They may verify your identity using your PAN, registered mobile number, email ID, or other account details before sharing the information.

If you are searching for how to find a demat account number from PAN, remember that PAN can support identity verification, but your PAN card itself does not display your demat number.

Security Tips for Your Demat Account

Your demat account number is important, but account safety depends on how carefully you manage access, authorisations and registered contact details.

The Role of TPIN in Modern Transactions

TPIN stands for Transaction Personal Identification Number. CDSL states that TPIN-based authentication is used for eDIS transactions and that TPINs are generated by the depository and communicated directly to the Beneficial Owner.

This adds an authorisation layer when securities are debited for eligible transactions.

Keeping Your Mobile and Email Updated

Your registered mobile number and email ID are important because OTPs, statements, alerts and account communication are usually sent there. If these details are outdated, you may miss important alerts or face difficulty while verifying your identity.

Avoiding Unauthorised Transfers

Do not share OTPs, passwords, TPINs or login details with anyone. Check your demat statements regularly. If you notice a debit or transfer you did not approve, report it to your broker or DP as soon as possible.

Investors are advised to monitor their demat account statements and report any unauthorised debits or discrepancies to the DP or broker immediately.

Common Problems Investors face while finding their Demat Number

Many investors face the same issues while locating their demat details. Most of them can be solved by checking the right document or contacting the right support team.

I can see my trading account number, but not my demat number

This happens because trading and demat accounts are different. Your trading account is used for transactions, while your demat account holds securities. Check the demat section of your broker app or your Client Master Report.

I forgot whether my account is under NSDL or CDSL

Look at the format. If it is a 16-digit numeric number, it is generally a CDSL number. If it starts with “IN”, it is generally NSDL. You can also confirm it through your broker app, statement or support team.

I only have a client ID and not the full demat number

A Client ID alone is not the complete demat account number. You also need the DP ID. Check your account documents or statement to find both parts.

I have multiple demat accounts

You can have more than one demat account, as long as they are opened with different DPs. Additionally, there is no restriction on the number of demat accounts you can open, provided they are opened with different DPs and linked to PAN as per KYC requirements.

I cannot access my registered email or mobile number

Contact your broker or the DP support team to learn about the process for updating your registered details. You may need to complete identity verification and submit the required documents.

Conclusion

Your Demat account number helps you track investments, read statements, apply for IPOs, change account details and resolve account issues. What matters is knowing the difference between the Demat account number, the Depository Participant ID (DP ID), or the Client ID.

Knowing whether your Demat account is with CDSL or NSDL makes it easier to understand your account details. Store your account documents securely, keep track of your CAS or Demat statement and use only reliable broker or depository sources to update your account.

 

 

Frequently Asked Questions

How many digits are there in a demat account number?

A CDSL demat account number is a 16-digit numeric number. NSDL demat account numbers are usually alphanumeric and begin with “IN”, followed by digits.

Is a demat account number the same as a trading account number?

No, a trading account is used to place buy and sell orders. A demat account holds your shares and securities in electronic form.

Can two demat accounts have the same number?

No, each demat account has a unique identification number. CDSL states that every demat account has its own unique 16-digit account number.

Where can ICICI Direct customers find their demat account number?

ICICI Direct customers can check their account opening email, account documents, ICICI Direct profile section, demat details section or account statement. If they cannot find it, they should contact ICICI Direct support through official channels.

What is the difference between DP ID and Client ID?

DP ID identifies the Depository Participant. Client ID identifies the investor account under that DP. Together, they form the demat account identity.

Is the 16-digit number the same as my BO ID?

For CDSL accounts, yes. CDSL states that the 16-digit demat account number is also known as the Beneficial Owner ID (BO ID).

Can I have two demat accounts with ICICI Direct?

You may have more than one demat account, subject to account-opening rules and DP policies, as there is no restriction on opening more than one demat account, provided they are opened with different DPs and linked to PAN as required.

What should I do if I forget my Demat account number?

Check your welcome email, account-opening documents, Client Master Report, broker app, demat statement, or CAS. If you still cannot find it, contact your broker or DP after completing identity verification.

Where do I need to enter my Demat account number?

You may need it for IPO applications, account updates, demat service requests, statement checks, transfer-related requests and some investment platform records.

Is it safe to share my Demat account number with others?

Share it only when required through trusted and official channels. Never share OTPs, passwords, TPINs or login details.

What is a TPIN, and do I need it with my Demat ID?

TPIN is a Transaction Personal Identification Number used for certain CDSL eDIS authorisations. It may be required when approving eligible debit transactions from your demat account.

How do I find my Demat ID if my account is dormant?

Check old statements, account-opening emails, or the Client Master Report. If you cannot access them, contact your broker or DP and complete the verification process.

Why is my Demat account number not showing in the bank app?

It may not appear if your demat account is not linked to that banking app, the app does not show demat details, or your account access is limited. Check your broker platform or contact support.

How do I update my nominee for my Demat account?

You can update nominee details through your broker or DP as per their process. ICICI Direct states that nominee registration is part of their demat account-opening journey.