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Self Assessment Tax Rates 2026/27: Quick Reference

The Accounted Tax Team·17 March 2026·1 min read

Here are the key tax rates and thresholds for the 2026/27 tax year.

Income Tax

| Band | Income | Rate | |------|--------|------| | Personal allowance | Up to £12,570 | 0% | | Basic rate | £12,571 – £50,270 | 20% | | Higher rate | £50,271 – £125,140 | 40% | | Additional rate | Over £125,140 | 45% |

Personal allowance reduces by £1 for every £2 above £100,000.

National Insurance (Self-Employed)

| Type | Rate | |------|------| | Class 2 | £3.45/week (if profits over £12,570) | | Class 4: £12,571–£50,270 | 6% | | Class 4: over £50,270 | 2% |

Other Key Figures

| Item | Amount | |------|--------| | Dividend allowance | £500 | | Personal savings allowance (basic rate) | £1,000 | | Personal savings allowance (higher rate) | £500 | | Capital gains annual exempt amount | £3,000 | | Trading allowance | £1,000 | | Property allowance | £1,000 | | Marriage Allowance transfer | £1,260 | | Annual Investment Allowance | £1,000,000 | | Pension annual allowance | £60,000 | | Mileage (first 10,000 miles) | 45p/mile | | Mileage (over 10,000 miles) | 25p/mile |

Accounted uses current rates to calculate your tax in real time.

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TagsSelf AssessmentTax Rates2026/27ThresholdsQuick Reference
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The Accounted Tax Team

Tax & Compliance Specialists

Our tax specialists have decades of combined experience in UK sole trader and small business taxation, MTD compliance, and HMRC submissions. All content is reviewed against current HMRC guidance before publication and updated quarterly to reflect legislative changes.

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Self Assessment Tax Rates 2026/27: Quick Reference | Accounted Blog