if you're a "micro" enterprise (turnover <£500k and fewer than 10 employees) you don't even need to produce a P&L, just a balance sheet

it can be done entirely for free on the Government's Companies House site, which generates your accounts, the regulatory statements and also does your tax return

takes me about 10 minutes a year, sending the figures to an accountant rather than punching them into the government's website would take longer