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.

What is my PAYE reference number? See what an Employer PAYE Reference looks like, where to find it on your P60 or P45, and how it differs from a UTR.

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

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.

What is the 40% tax bracket? Learn when 40% higher-rate Income Tax starts in 2026/27, how the £50,270 threshold works and how much tax you pay.

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.

Discover the most tax efficient director's salary for 2026/27. Compare £12,570 salary, dividends, National Insurance and Employment Allowance.

Calculate your UK take-home pay for 2026/27. Our free salary calculator estimates Income Tax, National Insurance, pensions and student loans.