# Selecting a trading account

To carry out any trading operation, you must first select a trading account.

![](https://s3-eu-central-1.amazonaws.com/euc-cdn.freshdesk.com/data/helpdesk/attachments/production/80078162278/original/TLJ06KtxuWFenJrdnpJ9LlpycK03TbXTEQ.gif?1645015904)

{% hint style="info" %}
The default account is selected automatically. More detailed information about account substitution can be founed in [this article](https://tiger-trade.gitbook.io/tiger.trade-windows-docs/v/english/~/changes/vwK8VizX4X32gFElQmEk/frequently-asked-questions-t/how-does-automatic-account-substitution-work).
{% endhint %}

If you try to complete a trading operation without selecting a trading account, a window will appear prompting you to select it. After selecting a trading account, repeat the trading operation.

<div align="left"><img src="https://s3-eu-central-1.amazonaws.com/euc-cdn.freshdesk.com/data/helpdesk/attachments/production/80035078313/original/CsQuynMOmwu4M-FvguELqldoPjlfDLEBBg.png?1630934368" alt=""></div>


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