Hi again.ABSENCE ABROAD RELIEF AFTER RETURN TO UK
Take a look at the notes starting at CG65030 here
and ending at CG65065 here
. Click "Next Page" at the bottom right to move through the intervening pages. I'm referring to absences abroad as an employee. The legislation doesn't make it clear whether the relief for an absence abroad covers a situation where an employee is sent by their existing employer abroad only or whether the relief can apply to someone such as yourself who chose to take a job abroad.
In the absence of the option you have below, I'd claim main residence relief for the periods from when you bought the property until late 1998 on the basis that you were living in the property and for the period from when you moved abroad to when you sell the property provided you move back into it before you sell it. That would cover the whole gain.REBASING TO 5 APRIL 2015 AND SELLING BEFORE RETURN TO UK
Take a look at the notes here
Prior to 6 April 2015, a non-UK resident individual could sell a UK property and pay no CGT in the UK. With effect from 6 April 2015, non-UK residents can be liable to UK CGT on gains made on the disposal of UK residential property. However, there are several calculation methods which will reduce exposure to CGT of a non-UK resident.
1 You can ignore everything which occurred prior to 5 April and use the 5 April 2015 value of the property as its "cost" for CGT purposes, as if you had bought it on that day. You would also qualify for exemption from CGT for the last 18 months of ownership since the property was your main home at some point. That would give you until 5 October 2016 to sell the property as a non-UK resident completely tax free. See the example under the heading "Example of a rebasing calculation involving Private Residence Relief - gain and loss from 5 April 2015 to disposal".
2 There are other methods which you can read about in the link I gave you but the one in 1 above is clearly the one that is most to your advantage as you have owned the property for a long time and the potential gain is very high.
I hope this helps but let me know if you have any further questions.