Can I switch my existing account to USDT?

No.

The base currency of an existing ThinkMarkets trading account cannot be changed after the account has been created.

What should I do if I want a USDT account?

Create an additional live account and select USDT as the base currency during setup.

Typical steps are:

1. Log in to ThinkPortal. https://portal.thinkmarkets.com/account/login
2. Choose Create Live Account.
3. Select the required trading platform.
4. Select the account type where applicable.
5. Choose USDT as the base currency.
6. Select the other available account settings.
7. Create the account.

Do I have to close my existing account?

No.

You can normally keep your existing account and create an additional USDT-based account, subject to account limits and eligibility.

Can I transfer funds between my existing account and a USDT account?

Transfer availability and conversion treatment depend on the accounts involved and the options displayed in ThinkPortal.

Check the Internal transfer function in ThinkPortal or contact Support for a specific transfer scenario.