Your First Self-Assessment Guide

Your first self-assessment doesn't have to be terrifying. This plain English guide walks you through everything — from gathering your records to actually submitting your return. Written by a qualified accountant who has been through it themselves. Covers records, expenses, National Insurance, platform-specific guidance (Etsy, PayPal, freelance platforms), a printable preparation checklist, and a step-by-step filing walkthrough. No jargon, no panic, just clear guidance for UK side hustlers and freelancers. 2025/26 tax year.