Having just signed up for QuickBooks, because of making tax digital, I need to know  if it is possible to, for instance, claim only 40% of my home electricity.  The majority of my VAT submission to HMRC is  claiming my receipts against VAT  (I’m a self-employed single trader) but with telephone, electricity, diesel and some other expenses, I can only claim part, on account of working from home. How do I do this most effectively?  Is it possible to set up a template in my expenses section of the program, to charge some expenses  at 40%, 25% or 80%, as is appropriate?