If you receive dividends from stocks, ETFs, or CFDs on stocks and ETFs in the US stock market, a 15% tax will be deducted. This amount will be taken from your account and marked as 'Dividend tax'. No dividend tax is withheld for European stocks. It is recommended that you check the terms and fees associated with dividends directly on your broker's website or contact their support team for more information.
Useful links:
Ex-dividend date: definition and key dates
How long should I hold a stock to get the dividend?