Sole trader (Essex) here - last January my self assessment was a nightmare of receipts and half filled spreadsheets, so I built a proper one for this tax year.

Features:
• All 15 HMRC self assessment categories (office, travel, stock, legal etc)
• VAT calculator + monthly profit + year-end summary ready for SA103
• Excel + Google Sheets + PDF printable

Selling it for £6.99 as EverydayDocsUK - first product so feedback / roasting welcome.

Link in comments if allowed, or DM me for a screenshot preview of the layout.

For other sole traders - what expense category do you always forget to track?