Estimate your UK income tax using the personal allowance and basic/higher/additional rate bands.
Everyone gets a tax-free personal allowance (which tapers away above £100,000). Above that, income is taxed at 20% (basic rate), 40% (higher rate), and 45% (additional rate) as it crosses each threshold.
Illustrative estimate only, using simplified/rounded 2026/27 UK figures — not tax advice. Always confirm with HMRC or a qualified UK tax adviser.