It seems quite complicated.You may have to move in the property for three months to establish main residence and thus get the exemption from CGT. Assuming of course that the period away was for employment abroad or employment/self employment in the UK for up to 4 years, the gain will not be taxable for those absence periods.
But the exemption may be jeopardised if you during those periods of absence you had other proerties which qualified to be your principal private residences. I suggest you take proper professional advice before you make any decisions.
D. Savva BA FCCA
Demetris Savva BA FCCA
http://www.tax-accounting-london.info
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