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The specifics depend on the country you’re in. In the UK for example there’s a type of investment account (ISA) in which you don’t have to pay tax on any income from capital gains or dividends. There are also private pensions that have other tax benefits but require you to lock your money until a certain age. Both of these might be preferable to a general investment account. Similar tax-advantaged accounts might be available in your country. And then there’s the choice of actual platform, and that also varies by country.