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.
From January 2025 UK crypto exchanges report user activity to HMRC. Here's how crypto is taxed — CGT, income tax on staking and airdrops, pooling rules, and what enforcement looks like in 2026
If you sell on eBay, Vinted, Etsy or do gig work in the UK, the £1,000 trading allowance lets you earn up to £1,000 gross tax-free. Here's exactly how it works, when it applies, and the new platform reporting rules.
Self-employed Class 4 National Insurance fell to 6% on profits between £12,570 and £50,270 from April 2024 and stays there for 2025/26. Here's how it works, who pays, and worked examples on real profit figures.
Crystallise crypto losses to offset gains and shrink your Capital Gains Tax bill. With the CGT annual exempt amount cut to £3,000 in 2025/26, harvesting losses against share or property gains can save £720 (basic rate) or £1,440 (higher rate).
HMRC has sent you a new tax code on a P2 Coding Notice — here is what every line means, why your code changed, the 7 most common reasons, and how to challenge a wrong code in 2025/26.
The £1.073m Lifetime Allowance was abolished from 6 April 2024 and replaced by three new limits in 2025/26: Lump Sum Allowance (£268,275), Lump Sum and Death Benefit Allowance (£1,073,100), and an Overseas Transfer Allowance. Here's how the new framework works.
