As Freetrade provides ISA with 3 £/month i see no point using isa if I less that 12K £ portfolio ( assuming 0.3% ) platform fee. For a small scale investor who is planning to save 200£/month it will take another 2-3 year ( assuming I increase contribution in near future ) to get to that point.
My question is hence is it possible to transfer my general investment account to ISA one i have reached that threshold without selling my portfolio ? or do i need to sell and then open ISA and buy back everything again ?