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.
IHT at 40% sounds brutal — but couples can shield up to £1M. Here's exactly how the nil-rate band, residence nil-rate band, taper relief and the coming pension changes work in 2026/27.
Universal Credit reduces by 55p for every £1 you earn above your work allowance. Here's the full 2026/27 taper maths, worked examples for different family types, and the benefits trap explained.
For most people, tax codes stay the same from year to year unless your income changes. In 2026/27, the standard code remains 1257L. But if you've had benefits-in-kind, untaxed income, or a salary change, HMRC may issue you a new code in March–April 2026.
The UK personal allowance for 2025/26 is £12,570 — so you can earn up to £12,570 tax-free. But National Insurance starts earlier, at £12,570/year too. Full breakdown with salary examples.
