I have a query about one aspect of this discussion that is not the main subject, but has come up for me in trying to put some of these principles into practice. In relation to UCITS ETFs and Investment Trusts, I have been able to find ETFs which seem to have very low annual fees (e.g. 0.12%) while most Investment Trusts have much higher annual fees. I have fed some of this information to Cormac's very helpful spreadsheet and, as I thought it might, it makes a big difference after 20 years (i.e., even with the tax differences, the UCITS ETFs come out ahead). Maybe I am misunderstanding the meaning of the fees and the ETF funds actually pay expenses from the fund that are not included in the annual fees, but if the differences in fees are actually so pronounced, it seems like an important factor that is never mentioned in connection with this issue. Maybe someone can explain where I am going wrong, or let me know where I can find Investment Trusts with lower fees.