Split Year Paper Form & other Online Forms

Hi, if I have to submit SA109 form for Split Year Treatment (paper form only) and also other forms for other incomes say CGT, bank interests .. .etc (both paper & online forms available) in the same tax year, do I need to submit all forms in paper form by 31 Oct? or I could submit SA109 in paper form by 31 Oct and other forms by online by 31 Jan?

Hi
The whole return must be submitted together and in the same format. The paper deadlne of 31 October applies unless you wish to buy 3rd party software to file online.