What happens if I miss the Self-Assessment deadline? Learn what penalties HMRC charges, how daily fines work, and what to do if you’re already behind.
What Income Needs to be declared on Tax Return?
Not sure what income to declare on your Self-Assessment tax return? Learn which earnings count — from employment and property to crypto and dividends — plus key 2025 deadlines.
Do I Need to File a Self-Assessment Tax Return?
Wondering who needs to file a Self-Assessment in the UK? Learn which types of income — employment, freelance, property, dividends, crypto, and more — require a tax return.
How to Register for Self Assessment with HMRC
Learn how to register for Self-Assessment with HMRC, get your UTR number, and start filing your tax return — step-by-step from The Calculator Guy.