How do UK tax brackets work for personal income?

Hi everyone! I’m trying to understand how UK income tax works, and I keep hearing about tax brackets. I know different parts of your income are taxed at different rates, but I’m not sure what the current brackets are or how they affect total tax.
Could anyone explain this in simple terms, preferably with practical examples, so I can plan my finances better?

I was in the same situation when I started my first job and tried to calculate how much tax I’d pay. UK tax brackets divide your income into bands, and each band has its own rate. Understanding them helps you plan salary, dividends, or additional income.
This guide explains it really clearly
UK tax brackets
It helped me see exactly how much tax I’d pay at different income levels and avoid surprises. Once I understood it, planning finances and budgeting became much easier.

Thank you, that explanation really clarified the brackets for me!