What does the 0T tax code mean? Discover why HMRC uses it, how much tax you pay, how to correct it and whether you can claim a refund.

Check employment status using HMRC's CEST tool. Learn how to determine employed or self-employed status, understand IR35 and interpret your results.

Can you still claim working from home tax relief? See the 2026/27 rules for employees, previous-year claims, employer payments and self-employed expenses.

What does an NT tax code mean? Learn why HMRC may issue an NT code, whether you still pay National Insurance, and what to do if your tax code is wrong.

The UK Personal Allowance is £12,570 for 2026/27. Learn how it works, the £100,000 taper, £125,140 limit, tax code 1257L and the 60% tax trap.