Capital Taxes Planning 21st March 2016 Budget 2016: New CGT planning opportunities. George Osborne’s latest Budget heralded an unexpected reduction in CGT, lopping 8% off both the 18% and 28% rates. But not for residential property- George continued his attack on residential landlords. However, it may well be that sales of other assets are now best deferred until post 5 April 2016. The date of sale for CGT purposes is the date on which contracts are exchanged – with shares, this is the bargain date, rather than the settlement date. The tax point is deferred when contracts are conditional, until the contractual conditions are fulfilled.