A simple paper cash book for UK sole traders who file a Self Assessment tax return. Write down every payment in and every business cost as it happens, then add up each month. At the end of the tax year your totals are laid out in the same order as the expense boxes on HMRC's Self-employment (short) pages, ready to copy into your return or hand to your accountant. Made for freelancers, tradespeople, cleaners, crafters, tutors, mobile hairdressers, market traders and anyone with a side business. Inside you get 12 months from April to March, each with 3 income pages and 4 expense pages (22 lines a page). Income columns are date, customer or reference, description, payment method and amount. Expense columns are date, supplier, description, category code, amount and a receipt tick. An expense category key is matched to the SA103S expense boxes: goods, travel, staff, premises, repairs, professional fees, finance charges, office costs and other. Every month has a summary page with category totals, profit, bank balance and notes. There are 12-month summaries of income, profit and expenses by category, plus a yearly worksheet that maps your totals to the SA103S boxes. You also get a business mileage log and a mileage claim worksheet, plain-English notes on what records to keep, cash basis, the £1,000 trading allowance, Making Tax Digital for Income Tax and key Self Assessment dates, a business details page, a before-you-file checklist and notes pages. If you must use Making Tax Digital for Income Tax you need compatible software for digital records and quarterly updates. This book suits people below the threshold, or works as a paper backup alongside software. 6 x 9 inch paperback, 120 pages, black and white interior. This is a record-keeping aid, not tax advice. Not affiliated with or endorsed by HMRC.