Margin accounts are taxable, and are not considered ‘registered’ accounts with the government. Due to this, withdrawals are not regulated, or limited in any way.
Income or capital gains tax applies at the time of the action in the account, (When you sell a security like a stock/ETF or receive a dividend) - however Questrade does not withhold this tax on your behalf.
Although transfers of cash out of a margin account are not taxable themselves, if you sold an investment and ‘realized’ or locked-in your profit, this action of realizing the profit is taxed as a capital gain when it’s time to file your taxes. Therefore it’s not the transfer of cash out of a margin account that ‘triggers’ the taxes, but rather when you bought/sold the investments and at what prices.
Because of this, we highly recommend speaking with a tax professional about the implications of actions in your Margin account.
Please note: Withdrawals from your margin account may also affect your buying power if you’re currently borrowing funds to trade or invest. Please pay close attention to your balances and currency if this is the case, otherwise interest charges may apply.