Dividend payments from stock positions will be credited to your account with any applicable standard withholding taxes deducted. These depend on the country where the stock is domiciled.
You will be able to see the details of dividends and withholding tax after it's booked in your account in the Dividends report.
Withholding taxes or capital gains are the responsibility of the client to take care of and report in their respective country of residence. Saxo does not provide any tax related advices. Please consult professionals regarding your tax reporting.