Letting the tax tail wag the investing dog

Today I sold a share for tax reasons. I'd rather not be doing that, but unfortunately the treatment of capital gains tax in the UK and Norway is so different that I'd be mad not to take advantage of the UK rules while they still apply to me.

I'm planning to move to Norway late in 2010 - late enough that I'll still be resident in the UK for the 2010/11 tax year. We're still a couple of weeks short of the end of the 09/10 tax year, so I effectively have two tax years to play with, and two capital gains allowances (I invest on my wife's behalf as well as my own).

In the UK I can make a capital gain of £10100 before I pay capital gains tax. When I do pay tax, it is charged at 18%. In Norway, although there are some minor allowances, the tax rate is effectively 28% on the entire sum. Furthermore, although I have some of my investments in ISAs, these do not shelter me from Norwegian taxes.

Over the last 12 months I've made some significant capital gains - and I'd rather not give up 28% of my profit to the Norwegian state. So I've reluctantly decided to sell any of my investments with a significant capital gain attached. Using up the remainder of my 09/10 allowances means selling Barclays - which I did today for an overall profit since purchase of 289%.

Over the next 6 months or so I will be selling up other shares where I can save tax in doing so. I'll need to take account of dealing costs (selling and buying), stamp duty, and the bid/ask spread. Once I have the cash in hand, I may buy straight back into the same share (after waiting the minimum 30 days to avoid HMRC's bed and breakfasting rules) or I might put my money to work elsewhere.

I'm going to end up selling the vast majority of my portfolio, with the exception of LLPC, BDI, QDG, CPT, MXM.

As to whether I will reinvest in Barclays, I'm not sure I can make a convincing enough case. I think it is probably worth more like 450p than 350p, and a potential 30% increase is not to be sneezed at, but I think there are probably better alternatives. I'll be looking into some of those soon.