When constructing a portfolio, the retail investor needs to take into consideration many different factors and priorities. Time horizon and tax considerations are two key aspects. Time horizon and tax considerations are two key aspects. After all, you should likely not be considering equity investments if you require your capital back in a very short period of time or are highly risk adverse. And the higher your net income the more tax you will pay on investment income and the more diligent you should be towards what is held in your portfolio.