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2026/27 Tax Year
Tax Guide

Self-Employed NI: Class 4 Rates Unchanged Amidst Fiscal Drag

Self-employed individuals face unchanged NI rates in 2026-27, but fiscal drag through frozen tax thresholds requires careful planning.

Class 4 National Insurance Rates Hold Steady

Self-employed workers will see unchanged Class 4 National Insurance rates in the 2026-2027 tax year. This stability offers predictability, but fiscal drag from frozen tax thresholds demands attention.

6%Class 4 NI on profits £12,570 - £50,270
2%Class 4 NI on profits above £50,270

Why Class 4 NI Matters

Class 4 contributions are vital for accessing state benefits, including pensions. Accuracy in calculating these contributions is essential to avoid penalties. Although rates haven't changed, fiscal drag continues to pull more people into higher tax bands without a proportionate increase in income.

The freeze means a nurse on £37,000 now pays higher-rate tax that was designed for the top 10% of earners.

How to Manage Your NI Contributions

Impact of Frozen Tax Thresholds

Higher Rate Threshold
£50,271
Average Earnings
£37,000

Looking Ahead: Policy and Planning

While steady NI rates offer some stability, the freeze on tax thresholds means more self-employed individuals may face higher tax liabilities. This calls for strategic financial planning. Potential regional tax variations under a Burnham-led government could further complicate the landscape.

Consult a tax professional to navigate these challenges and optimise your self-employed status in 2026 and beyond.

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