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Personal Allowance is the slice of income you can earn each year before paying any income tax. For 2025/26 the default is £12,570 — frozen at this level since 2021/22 and confirmed frozen through April 2028.
How personal allowance 2025/26 calculator works in 2025/26
Personal Allowance applies UK-wide (England, Wales, Scotland, Northern Ireland) and reduces your taxable income before any band rates apply. Your tax code is your allowance ÷ 10 with a letter suffix — so £12,570 = code 1257L.
Three ways your personal allowance can change:
- £100,000+ taper: for every £2 of income above £100,000, you lose £1 of allowance. Fully gone at £125,140.
- Marriage Allowance: a non-taxpayer spouse can transfer £1,260 (10%) to a basic-rate spouse, raising their allowance to £13,830 (saves £252/year).
- Blind Person's Allowance: £3,130 extra in 2025/26 if registered blind/severely sight-impaired.
The taper creates the infamous "60% tax trap" — between £100k and £125,140, every £100 of extra pay costs £40 income tax + £20 lost allowance × 40% = £60 effective tax. Pension contributions in this band give 60% effective relief.
Worked example: £35,000 standard PA
Full £12,570 PA. £22,430 taxed at 20% = £4,486. NI £1,794.40. Take-home £28,719.60.
Gross: £35,000 → Take-home: £28,719.60/year (£2,393.30/month)
Worked example: £110,000 — taper kicks in
PA reduced by (110,000-100,000)/2 = £5,000. New PA £7,570. Tax £33,432 + NI £4,210.60. Take-home £72,357.40.
Gross: £110,000 → Take-home: £72,357.40/year (£6,029.78/month)
Worked example: £125,140 — PA fully gone
PA = £0. All income taxed. Tax £42,516 + NI £4,512.40. Take-home £78,111.60.
Gross: £125,140 → Take-home: £78,111.60/year (£6,509.30/month)
Frequently asked questions
Official UK Sources
- GOV.UK — Income Tax rates and Personal Allowances
- GOV.UK — Marriage Allowance
- GOV.UK — Blind Person's Allowance
- GOV.UK — Personal Tax Account
Last reviewed: May 2026 against HMRC 2025/26 rates.
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