Your effective tax rate is what you actually pay on average; your marginal rate is what the next £1 costs. Both matter — but for different decisions. Worked examples at £30k, £55k, £105k and £130k.
The 2025/26 UK tax year ends 5 April 2026. Use-it-or-lose-it allowances: £20k ISA, £4k LISA, £60k pension, £3k CGT, £3k IHT gifts, Marriage Allowance backdate. Step-by-step checklist.
Voluntary National Insurance Class 2 costs £190 per year and Class 3 costs £957 per year — but they buy the same extra State Pension entitlement. Worked examples on the payback period and who qualifies for the cheaper Class 2 route in 2026/27.
The 2025/26 personal allowance is £12,570 — but it tapers off above £100,000, varies if you claim Marriage Allowance, and behaves oddly with side income. Here's how it works.
Pension contributions, salary sacrifice, Marriage Allowance, ISAs and Gift Aid — the five most useful, fully legal ways to pay less UK income tax in the 2025/26 tax year, with worked examples.
From April 2024, HICBC starts at £60,000 (was £50,000) and fully claws back at £80,000. Here's how it works, who pays, who can opt out, and how the new household-income consultation affects you.
Marriage Allowance gives married couples a £252-a-year UK tax saving — and you can backdate a fresh claim by four years. Who qualifies, how to apply in 5 minutes, and the common mistakes to avoid.
Scottish income tax has 6 bands at 19%/20%/21%/42%/45%/48% — England's 3 bands run 20%/40%/45%. Worked comparison at £25k, £35k, £50k, £75k and £125k. Plus the Personal Allowance, LBTT and Plan 4 differences.
Part 5 (final) of our Spring Budget 2026 series — Corporation Tax, dividend rates for owner-managers, R&D credits, IR35, Class 4 NI and what it all means for limited companies and sole traders.
Full take-home pay impact of Spring Budget 2026 — income tax, NI, National Living Wage and salary sacrifice changes explained with worked examples.
Part 2 of our Spring Budget 2026 series — what the Chancellor announced for Class 1 employee NI, the 15% employer rate, Class 4 self-employed and the abolished Class 2. Worked examples included.
Part 1 of our Spring Budget 2026 deep-dive: how the Chancellor's income tax and personal allowance decisions reshape take-home pay for 2026/27, with worked examples at £25k, £45k, £75k and £125k.
