The UK tax threshold freeze and fiscal drag will shape personal and business tax planning for the rest of the decade. The government has confirmed that income tax thresholds will remain frozen until April 2031. Although headline rates have not increased, fixed thresholds steadily raise the tax burden.
As wages rise, more income moves into higher tax bands. This process, known as fiscal drag, affects employees, directors and business owners alike.
The position discussed here applies to the main UK tax system. Scotland and Wales operate some devolved income tax powers.
What the UK Tax Threshold Freeze and Fiscal Drag Mean in Practice
The government first announced the freeze in 2021 and has now extended it to 6 April 2031. By then, allowances and bands will have remained unchanged for almost a decade.
When pay increases, a larger share of income falls into higher tax bands. More individuals will enter the 40 percent band over time, even if their real spending power does not increase significantly.
At the same time, employer National Insurance costs have risen. From April 2025, the main employer NIC rate increased to 15 percent and the secondary threshold fell to £5,000. Employers now face higher costs when they increase salaries.
Further changes will tighten planning opportunities:
- From April 2026, dividend tax rates will rise by 2 percent for basic and higher rate taxpayers.
- From April 2027, savings and property income will also face rates 2 percent higher than current levels.
- New income ordering rules will apply earned income first, which pushes investment income into higher bands more quickly.
- From April 2029, NIC relief on employee pension contributions through salary sacrifice will be capped at £2,000 per year. Contributions above that amount will attract NIC, although income tax relief will continue.
Each measure increases the overall tax take without changing headline income tax rates.
The Real Impact of Fiscal Drag
Over time, frozen thresholds create a widening gap between inflation-linked allowances and fixed ones. If thresholds had risen with inflation, both the personal allowance and the higher rate threshold would stand materially higher by 2030 to 2031.
Instead, many households will move into the 40 percent band earlier than expected.
The impact hits hardest:
- Individuals just above the £50,270 higher rate threshold
- Those earning between £100,000 and £125,140
In the £100,000 to £125,140 range, the personal allowance tapers away. This taper creates an effective marginal tax rate of 60 percent. A modest pay rise in this bracket can produce a surprisingly small net gain.
When you combine fiscal drag with higher employer NIC and rising dividend and savings tax rates, the overall burden increases steadily.
Planning Remuneration Carefully
Rising employment costs and higher marginal rates demand careful remuneration planning.
Straight salary increases now cost employers more because of higher NIC. Many businesses are reviewing reward structures to maintain tax efficiency.
Pension contributions remain a valuable planning tool. Until April 2029, salary sacrifice still delivers full NIC and income tax savings. After the cap takes effect, income tax relief will remain available and employer pension contributions will continue to sit outside NIC.
For higher earners, pension planning can:
- Restore lost personal allowance
- Reduce effective marginal rates
- Lower exposure to higher rate tax
Electric vehicles offered through salary sacrifice can also provide strong tax efficiency. Benefit in kind rates on electric cars remain low, and employees often achieve better outcomes than with personal leasing.
Certain non-cash benefits can also reduce tax exposure when structured correctly, including:
- Cycle to work schemes
- Employer-provided mobile phones
- Qualifying staff meal facilities
These benefits allow employers to reward staff without increasing income tax or NIC liabilities.
Communication and Support
Fiscal drag often creates surprise. A modest pay rise can push an employee into higher rate tax or into the personal allowance taper. Many employees do not expect the reduced net impact.
Employers should monitor employees around:
- £50,270 (higher rate threshold)
- £100,000 to £125,140 (personal allowance taper range)
Clear communication about pay structures, salary sacrifice and benefits will help employees understand their true position.
The extension of frozen thresholds until 2031 will steadily increase tax liabilities for individuals and businesses. Early remuneration planning can help you manage the impact.
If you would like to discuss how these changes affect you or your employees, our team at Cobble would be happy to help.