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UK Tax Guide Hub 2026: Income Tax, Rates & Calculator

KEY INSIGHT
UK's hidden trap: between £100,000-£125,140, you lose £1 of personal allowance for every £2 earned—creating a brutal 60% effective rate. A £75,000 earner pays £17,432 income tax + £3,511 NI = £20,943 total (~28%). The 40% higher rate kicks in at just £50,270. NI is now 8% (cut from 12% in April 2024). Scotland has different rates: 42% from £43,663.
At a glance

Key Facts

Tax Rate Range
20-45%
Tax Type
Progressive - rate increases with income
Filing Deadline
January 31, 2027 (Self Assessment online, for 2025/26)
Introduction

The UK uses a progressive income tax system with three main bands: 20% basic rate (£12,571-£50,270), 40% higher rate (£50,271-£125,140), and 45% additional rate (over £125,140). The £12,570 Personal Allowance is tax-free—but disappears between £100,000-£125,140 income, creating a brutal 60% effective rate in that band. On top of income tax, you pay National Insurance: 8% on earnings £12,570-£50,270, then 2% above (rate cut from 12% to 8% in April 2024). A £75,000 earner pays roughly £17,432 income tax + £3,511 NI = £20,943 total (~28%). Scotland has different rates—including a 42% higher band from £43,663. Use our calculator to estimate your UK tax liability.

This hub links to every UK tax guide and calculator on CountryTaxCalc — covering income tax rates, expat obligations, and tools to calculate your take-home pay.

Section 01

UK Tax Guides

Detailed UK tax guides on CountryTaxCalc:

Section 02

UK Income Tax Calculator

UK's income tax uses 3 tax bands from 20% to 45% plus National Insurance. Use the calculator to estimate your take-home pay after income tax:

IncomeRate
£0 - £12,5700% (Personal Allowance)
£12,570 - £50,27020% (Basic)
£50,270 - £125,14040% (Higher)
Over £125,14045% (Additional)
Section 03

Related Hubs

UK tax connects with these hubs on CountryTaxCalc:

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FAQ

Frequently Asked Questions

What are the UK income tax rates for 2025/26?

UK income tax has three main bands for 2025/26: 20% basic rate on income £12,571-£50,270, 40% higher rate on £50,271-£125,140, and 45% additional rate on income over £125,140. The first £12,570 is your tax-free Personal Allowance. National Insurance adds 8% (then 2% above £50,270) on top of these rates—NI was cut from 12% to 8% in April 2024.

What is the UK's 60% tax trap?

Between £100,000 and £125,140, you lose £1 of Personal Allowance for every £2 you earn. This means you're effectively paying 40% income tax PLUS losing £12,570 of tax-free allowance. The marginal rate in this band hits 60%. Pension contributions are the main way to avoid this trap—they reduce your adjusted net income.

How much National Insurance do I pay?

Employees pay Class 1 NI: 8% on earnings between £12,570-£50,270 per year, then 2% on everything above (rate was cut from 12% to 10% in January 2024, then to 8% from April 2024). Self-employed pay Class 4 NI: 6% on profits £12,570-£50,270, then 2% above. A £75,000 employee pays roughly £3,511 in NI annually. NI funds your State Pension and certain benefits.

When is the UK tax return deadline?

For the 2025/26 tax year (April 6, 2025 - April 5, 2026): paper returns are due by October 31, 2026; online Self Assessment returns are due by January 31, 2027. Most employees don't need to file—PAYE handles it automatically. Self-employed, landlords, and those earning over £150,000 must file.
Disclaimer:This hub provides general information about UK taxation for educational purposes only. Tax rules change frequently and individual circumstances vary. Always verify current rates and rules with the official UK tax authority or a qualified local tax adviser. This is not tax or legal advice.
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