How to convert a secondary bank account to primary on Zerodha
A Zerodha trading account can hold a maximum of three bank accounts: one primary account and up to two secondary accounts. Converting a secondary account into the primary account is a different task from adding a new bank or changing to a bank you have never linked. Here both accounts already sit on your profile, and you are only asking Zerodha to swap which one carries the primary role. This guide covers the conversion through Zerodha Console , the Aadhaar e-sign that authorises it, the Rs 25 plus 18% GST charge, and the 72 working hour processing window.
The primary bank account is the one established from the bank proof you submitted at account opening, and it can be used for both deposits and withdrawals. A secondary bank account is any additional account you linked later. For the difference between the two roles and how deposits and withdrawals route across them, see primary and secondary bank accounts on Zerodha .
Conflict-of-interest disclosure. This guide is published by the WebNotes Editorial Team for informational purposes and is written independently. WebNotes operates a Zerodha account-opening referral programme, disclosed on the pages that carry the referral link; this guide does not carry it and earns no referral commission from the procedure described here.
Step-by-step procedure
The Procedure infobox near the top of this page lists the seven steps in order. The subsections below expand each one with the exact on-screen prompts, the Aadhaar e-sign flow, and what to check before and after you submit.
Step 1: Log in to Zerodha Console
Open console.zerodha.com in a browser and log in with your client ID and password. Complete two-factor authentication using your TOTP authenticator app or the SMS OTP sent to your registered mobile number. Every bank-account change on Zerodha is handled in Console, which is the reporting and account-management portal. You cannot promote a secondary account from Kite , the trading app, so start in Console.
Step 2: Open Account and then Bank
In the top navigation bar, click Account, then select Bank from the menu. The Bank page lists every account linked to your profile with its bank name, the last few digits of the account number, the account type, and its role. One account is tagged as the primary account, and the remaining one or two are tagged as secondary. You can also review these details any time under Account and then Bank without starting a change; that read-only view is how you confirm the linked accounts before you act.
Step 3: Select the secondary account and click Set as primary
Find the secondary account you want to make the primary account and click Set as primary next to it. Every secondary account on your profile is already verified, because Zerodha verifies each account through a penny-drop check when it is first linked, so there is no fresh penny-drop or bank-proof upload at this stage. If you do not see a Set as primary control, confirm you are viewing the Bank page in Console rather than a linked-accounts summary elsewhere.
Step 4: Proceed to e-sign and accept the terms
Click Proceed to e-sign. A terms-and-conditions screen appears that authorises Zerodha to change the primary bank tag on your trading and demat account. Read it, accept it, and click Proceed. The e-sign is a legally valid electronic signature under the Information Technology Act 2000, executed against your Aadhaar record, which is why the next step asks for your Aadhaar number and an OTP.
Step 5: Sign with Aadhaar OTP
Click Sign now. Enter your 12-digit Aadhaar number and click Send OTP. UIDAI sends a one-time password to the mobile number linked to your Aadhaar. Enter that OTP in the field provided and click Verify OTP. If the OTP does not arrive, the most common cause is that your Aadhaar is not linked to a live mobile number, or the number linked to Aadhaar differs from the one registered with Zerodha. In that case you cannot use the online e-sign route and must use the offline account-modification process described below.
Step 6: Let the two accounts swap
On a successful e-sign, Zerodha queues the change for processing. The account you promoted takes over the primary role, and the account that was primary until then is automatically demoted to the secondary slot it vacated. Because both accounts remain linked, you continue to see all your accounts under Account and then Bank; only the primary and secondary tags move. There is no penny-drop or bank-proof email at this stage, since both accounts were already verified when they were first added.
Step 7: Await confirmation within 72 working hours
Zerodha processes the conversion within 72 working hours and sends a confirmation email to your registered address once the new primary account is active. During this window, any withdrawal request you place is still routed to the old primary account, because the change is not yet effective. Keep the old primary account open and operational until you receive the confirmation email, then verify on the Bank page that the primary tag now sits on the account you promoted.
Charge for converting a secondary account to primary
Converting a secondary account to primary carries a charge of Rs 25 plus 18% GST, which works out to Rs 29.50 in total. Zerodha debits this amount from your trading account ledger, so you do not pay it separately; it appears as a debit in your funds statement in Console. The same Rs 25 plus GST charge applies whether you promote an existing secondary account or change the primary account to a bank you are linking for the first time. For the wider list of what Zerodha bills for account operations, see Zerodha charges .
Keep a small free balance in your trading account before you start, so the Rs 29.50 debit does not fail for want of funds. If your ledger is at zero, add a nominal amount first through UPI or NEFT, RTGS, or IMPS so the fee can be recovered cleanly.
What happens to withdrawals during the 72 working hour window
The conversion is not instant. Until Zerodha completes the change within 72 working hours and emails you the confirmation, the account that is currently primary stays primary for the purpose of settlements and withdrawals. A withdrawal you request during this window is credited to the old primary account, not the one you are promoting.
This matters if you were converting precisely because you wanted a payout to land in the new account. Wait for the confirmation email before you place that withdrawal. Zerodha does allow a payout to a verified secondary account by selecting the preferred bank on the withdrawal screen, so if you cannot wait, you can send the money to the target account as a secondary payout instead; see How to withdraw to a secondary bank account on Zerodha . Deposits are unaffected throughout, because both a primary and a verified secondary account accept fund additions.
When you cannot e-sign online: the offline route
The online e-sign flow is available to individual account holders and NRO Non-PIS clients whose Aadhaar is linked to their registered mobile, and to minor accounts where the guardian e-signs. If you do not fit that description, Zerodha routes a primary bank change through an offline account-modification form with bank proof instead of an on-screen e-sign. The offline route applies to:
- Individuals whose registered mobile or email is not linked to Aadhaar.
- Individuals linked with a proprietorship bank account.
- Joint Zerodha accounts, where all holders must sign.
- Clients without a Zerodha demat account.
- NRE and NRO-PIS accounts.
- Non-individual accounts such as HUF, corporate, partnership, LLP, AOP, and trust accounts.
For the offline form, the document requirements, and the accepted bank proofs, follow How to change your primary bank account on Zerodha , which documents the courier-based account-modification process in full. The Rs 25 plus GST charge and the intent to make a linked account primary are the same; only the authorisation method differs.
Conversion versus adding or changing a bank account
It helps to keep three related tasks distinct, because they use different screens and, in one case, a different charge.
| Task | What it does | Charge | Verification |
|---|---|---|---|
| Convert secondary to primary | Swaps the primary tag onto an already-linked secondary account | Rs 25 plus 18% GST | Aadhaar e-sign, no fresh penny-drop |
| Add a secondary account | Links a new bank as an additional account | No charge | Penny-drop of Re 1 |
| Change the primary account | Sets a bank you have not linked before as primary | Rs 25 plus 18% GST | Aadhaar e-sign and a test transfer |
If the bank you want as primary is not yet on your profile at all, you can either add it as a secondary account first and then convert it here, or change the primary account directly to the new bank. Adding it as a secondary first has one advantage: the penny-drop verification is done in advance, so the later conversion is a clean e-sign with nothing left to verify. For the concept behind all three tasks and the three-account cap, read primary and secondary bank accounts on Zerodha .
After the conversion: what to update
Once the confirmation email arrives, a few downstream settings point at the account that is now secondary and may need attention.
For UPI fund additions, Zerodha accepts a UPI handle tied to a bank on your profile; if you deposit by UPI, use a handle linked to the account that suits you after the swap. If you run any eMandate for a systematic investment, check that it draws from the account you intend, since an eMandate is registered against a specific bank and does not move when the primary tag moves. If you ever need to correct an IFSC on a linked account, that is a separate flow covered in How to change the bank IFSC on Zerodha .
See also
- Primary and secondary bank accounts on Zerodha
- How to change your primary bank account on Zerodha
- How to add a secondary bank account on Zerodha
- How to change a secondary bank account on Zerodha
- How to remove a bank account on Zerodha
- How to link a bank account to Zerodha
- How to change the bank IFSC on Zerodha
- How to withdraw to a secondary bank account on Zerodha
- How to withdraw funds from Zerodha
- Zerodha penny-drop refund
- Zerodha bank proof email
- How to add funds to Zerodha via UPI
- How to add funds to Zerodha via NEFT, RTGS, or IMPS
- How to add funds to Zerodha via netbanking
- Zerodha fund transfer limits
- Zerodha failed transfer refunds
- Zerodha payment gateway fees
- Zerodha charges
- Zerodha Console
- Kite by Zerodha
- Zerodha eMandate
- Unified Payments Interface
- Aadhaar
- Reserve Bank of India
- Securities and Exchange Board of India
- Is Zerodha safe
External references
References
- Zerodha Support, “Convert a secondary bank account into primary,” support.zerodha.com, observed 2026-06-30.
- Zerodha Support, “How do I change my primary bank account linked with Zerodha,” support.zerodha.com, observed 2026-06-30.
- Zerodha Support, “Primary bank change error and the offline account modification process,” support.zerodha.com, observed 2026-06-30.
- UIDAI, “Aadhaar e-signature and OTP-based authentication,” uidai.gov.in.
- SEBI (Stock Brokers) Regulations, 1992, as amended, on client bank-account requirements.