I've been running small businesses for 14 years and at the start of my business career I had no idea how to do my company accounts. I turned up to my first meeting with an accountant with a folder full of receipts and a few bank statements.
I paid the price as that year (and the following one) I was hit with high accountancy fees. I had no idea how to do Limited Company Accounts at this time.
Over time I found out that it's easier and a heck of a lot cheaper to do the vast majority of the work myself. At the end of my tax year I give an accountant my final numbers and I pay her £40.