Starting from 2025.04.01 all commercial banks, government and private financial institutions operating in Mongolia switched to the International Bank Account Numbering (IBAN) standard by international standards. So, please note that:

• Interbank transactions must be done using the IBAN number.

However, for transactions between accounts within TDB or within the bank, the old account number can be still used, and there is no need to use the IBAN number.

Advantages of using IBAN account numbers:

• Easy to check whether the account number is correct.

• Immediately identify which bank account it is.

Transaction returns due to incorrect accounts will be reduced.

You should call 1800-1977 or / 70161988 from abroad / or write an e-mail to [email protected] by phone or e-mail registered with the bank and get advice.

If you forgot your user name, you can call 1800-1977 from the bank-registered phone number or go to nearest branch of our bank with your identification ID. 

It will be added automatically if the customer opens a new account in TDB Online. If you have opened a new account by visiting the branch, log in your TDB Online service and select account settings from the "my account" then add your account.

TDB Online service has the following types of package:

1. Online Info - Checking your account

2. Online Plus - Daily transaction limit of 200 million MNT

3. Online Premium - Daily transaction limit of 500 million MNT

If there appeared an error "didn't provide rights to do this operation", it means you are using Online info service.  So please get registered in Online Plus or Online Premium.

You can also go to the nearest branch of our bank with your official letter to authorized employee of the organization.

You should send your official letter to [email protected] by e-mail registered with the bank.

If you forgot corporate transaction password please go to the nearest branch of our bank with your official letter to get the new transaction password. 

You can also go to the nearest branch of our bank with your official letter to authorized employee of the organization.

You should send your official letter to [email protected] by e-mail registered with the bank.

You can also click on the "Recover Password" button, enter your user name, bank-registered e-mail address and CAPTCHA code then click on the "Continue" button. Then, without closing the window, enter the 6-digit activation code received by e-mail and click on the "Recover Password" button.

You can also go to the nearest branch of our bank with your official letter to authorized employee of the organization.