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How company pension contributions cut your tax bill

Company pension contributions are a highly effective way for UK limited company directors to reduce both their Corporation Tax and personal tax liabilities.

Reviewed by an accountant on 2 July 2026 6 min read

How company pension contributions reduce Corporation Tax

When your limited company makes a contribution to a registered pension scheme on your behalf, HMRC generally treats this as an allowable business expense. This means the contribution is deducted from your company's taxable profits before Corporation Tax is calculated.

For the Financial Year 2026 (1 April 2026 to 31 March 2027), Corporation Tax rates are 19% for profits up to £50,000 and 25% for profits over £250,000, with marginal relief in between. By reducing your company's taxable profits, a pension contribution can significantly lower your Corporation Tax bill.

For example, if your company has profits of £100,000 and makes a £20,000 pension contribution, its taxable profits reduce to £80,000. This means Corporation Tax is calculated on £80,000 instead of £100,000, saving your company a substantial amount.

National Insurance savings

Another significant benefit is that employer pension contributions are not subject to National Insurance Contributions (NICs). This means your company avoids paying employer's NICs on the amount contributed to your pension, and you, as the director, avoid employee's NICs. This can lead to considerable savings compared to taking the same amount as a salary or bonus.

How company pension contributions reduce your personal tax

While the contribution is made by your company, it directly benefits you as the director and can reduce your personal tax burden in several ways:

  • No Income Tax or Employee's NICs on contributions: Unlike a salary or bonus, the pension contribution itself is not treated as your personal income for tax purposes at the point it's paid into your pension. This means you don't pay Income Tax or employee's NICs on the amount your company contributes.
  • Tax-free growth: Once the money is in your pension, it grows free from UK Income Tax and Capital Gains Tax. This allows your retirement pot to compound more efficiently over time.
  • Tax-free lump sum: When you eventually access your pension (typically from age 55, rising to 57 from April 2028), you can usually take up to 25% of your pension pot as a tax-free lump sum.

Annual Allowance and other limits

While company pension contributions offer excellent tax advantages, there are limits to how much can be contributed tax-efficiently each year.

  • Annual Allowance: For most people, the maximum amount that can be contributed to all your pensions in a tax year (including contributions from your company, yourself, and any third parties) while still benefiting from tax relief is £60,000 for the 2026/27 tax year.
  • Carry Forward: If you haven't used your full Annual Allowance in previous tax years, you may be able to 'carry forward' unused allowance from the three previous tax years. This could allow you to contribute more than £60,000 in the current year without incurring an annual allowance charge.
  • Tapered Annual Allowance: For high earners, the Annual Allowance may be reduced. If your 'adjusted income' (broadly, your total income plus employer pension contributions) exceeds £260,000, your Annual Allowance could be tapered down to a minimum of £10,000.
  • 'Wholly and Exclusively' Rule: For your company to claim Corporation Tax relief, HMRC requires the pension contributions to be "wholly and exclusively" for the purposes of the business. This generally means the contribution should be a reasonable amount for the work undertaken by the director. If HMRC deems a contribution excessive, they could disallow the Corporation Tax relief.

The abolition of the Lifetime Allowance

The pension Lifetime Allowance (LTA) was abolished from 6 April 2024. This means there is no longer an overall limit on the total value of your pension savings. However, new allowances now limit the amount of tax-free cash you can take from your pension. For the 2026/27 tax year, the Lump Sum Allowance (LSA) is generally £268,275, which limits the amount most individuals can take as tax-free cash during their lifetime.

Common mistakes

  • Exceeding the Annual Allowance: Contributing more than your available Annual Allowance (including any carry forward) can lead to an Annual Allowance charge, effectively clawing back the tax relief on the excess.
  • Ignoring the 'wholly and exclusively' rule: Making excessively large contributions that HMRC might not consider "wholly and exclusively" for business purposes could result in Corporation Tax relief being denied.
  • Not considering the Tapered Annual Allowance: High-earning directors might inadvertently exceed their reduced Annual Allowance if they don't account for the tapering rules.
  • Missing carry forward opportunities: Failing to utilise unused Annual Allowance from previous years means missing out on a valuable opportunity to make larger tax-efficient contributions.

Frequently asked questions

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