Change Client Subscription from Self Employed to Simple Start

Hello DC2811, 

Welcome to the Community page, 

There is no way of being about to do this. As the Self-employed account works completely different to our small business products. It would be a case of taking all the information out of the self-employed account and then canceling the subscription and then taking out a new subscription for the simple start account and importing the information into there and starting again basically.