Which expenses you can claim against self-employment income on your UK tax return: AMAP mileage, WFH flat rate, equipment, training, marketing and more — with examples of what HMRC allows and disallows.
The most common self assessment questions answered: missed deadline, HMRC notice to file, closing your account, moving abroad, inheritance, crypto, side hustles and more.
Step-by-step walkthrough of completing the online self assessment SA100 form in 2026: every section, which supplementary pages you need, and how to check before submitting.
Which boxes to fill in for each income type on your self assessment return: employment (P60/P11D), rental (SA105), dividends (SA101), CGT (SA108) and foreign income.
The complete checklist for whether you need to file a self assessment tax return in the UK: employment income, rental, freelance, savings interest, CGT, dividends and more.
Step-by-step guide to registering for UK self assessment online, what a UTR number is, how long it takes, and how to access your HMRC online account.
How HMRC calculates your self assessment tax bill: income tax at marginal rates, National Insurance for the self-employed, payments on account explained, and how to reduce your July bill.
Earn from tutoring, Etsy, Uber or dog walking? The £1,000 trading allowance may protect you — but above it, Self Assessment is mandatory. Here's every threshold, deadline and worked example.
Good news: the first £1,000 of side income is usually tax-free under the Trading Allowance. Above that, you pay income tax at your marginal rate plus Class 4 NI. Here's exactly how it works in 2025/26.
Your second job doesn't get a separate tax-free allowance — you only get one Personal Allowance per year. That means most second-job income is taxed at 20% or 40% from pound one via a BR or D0 emergency code. Here's the full picture.
Most UK benefits uprate in April, but some change in September/November. When Universal Credit changes, what triggers uprating, and the full 2026/27 rates guide.
The financial mechanics of divorce in 2026: pension sharing orders, CETV calculations, capital gains tax exemptions between separating spouses, and the CGT trap on property.
