Self-employed: your books and Self Assessment
For sole traders doing their own records: what to keep, how to invoice, what counts as an expense, and the figures a tax return asks for.
This path is practice in how the records and the sums work. It is not tax advice. Any rate or allowance in a question is an example for that question, so check GOV.UK for the current figures.
Getting set up
Start your records the right way: keep business money apart, know what to keep, and build a simple income and expenses record.
Getting paid
From the invoice to the money in the bank: write an invoice, set terms, record what comes in and chase what does not.
Business expenses
Which costs belong in the business record, how to split a cost that is partly private, and the sums for mileage and working from home.
Self Assessment, step by step
What Self Assessment asks of a sole trader: the tax year, the dates, the totals for the return, payments on account and saving for the bill.