I work with a lot of small businesses, sole traders and family teams, and most of them are overpaying thousands a year for traditional accountants, when they don't need to.
Not sure if you know, but if you happen to bank with NatWest, RBS, Ulster Bank, or Mettle (owned by NatWest), you can actually get premium FreeAgent accounting software completely free. It lets you automate your own tax returns, payroll, VAT, invoicing etc. yourself in about 10 minutes a week.
In my view, if you're turning over less than £250K per annum, you don't need a bookkeeper or accountant, as long as you are diligent with record keeping and spend a little bit of time learning the software.
Hope this helps.