F W

I'm interested in this question and the two links posted here are not helpful. The first is to an archived page which no longer exists, and the second talks about funds accrued before and after 6 April 2017. This makes no sense as the OP (and myself) has surely had RRSPs started earlier than 6 April 2017, and in my case I don't have any visibility of when the assets in the funds were bought. Is it not the case that if I convert my RRSPs to RRIFs in order to get retirement income, that because of the double taxation agreement I should pay tax only once? I understand that Canada will deduct 25% withholding tax, and on my UK tax return I would declare the gross income from the RRIFs and the tax already paid to the CRA. This would then entitle me to tax credits up to 100% if the tax I have already paid. As the RRIF pays out there will obviously be liquidation of assets within the fund, but I will have no knowledge of which ones will be sold and which ones not. It will be at the fund managers discretion surely?