I do this through my disruptive accountancy firm, Diverso:

ONLY true monthly subscription accountancy service (probably)

£99pm for small businesses with than £250k turnover, less than 10 employees with free Xero, free Receipt Bank & free Fluidly

48pm for micro businesses, small one-man bands and side hustles

UNLIMITED advice and support

All year-end accounts and returns

directors self assessment

directors payroll

VAT Returns

Free Legal Guidance

Free IT Support

absolutely no surprise bills

response guaranteed in 24 hours

I also help small businesses, for free, set up recurring income, because I'm pretty damn good at that.