Workplace pension tax relief: a practical guide for advisers

What advisers need to know — and do — when supporting employers on pension tax relief.

Published: 18 May 2026

Key point

Pension tax relief remains one of the most effective incentives within workplace pensions. Here, we focus on how tax relief works in auto‑enrolment schemes — and how advisers can help employers use it to drive engagement and better outcomes.

How workplace pension tax relief works

By providing workplace pension tax relief, the government incentivises pension saving. You could explain it to your clients as a way to effectively top up employee contributions.

For employees, this usually means pension contributions are made from post‑tax income. For a basic‑rate taxpayer, a £100 contribution typically costs £80, with the balance coming from tax relief.

For employers, pension contributions are normally an allowable business expense, reducing corporation tax. Where salary sacrifice is used, there can also be National Insurance savings — an important lever in cost‑efficient scheme design.

Most employees in auto‑enrolment schemes benefit from tax relief, including many non‑taxpayers. But it's worth reminding clients that higher-rate taxpayers may need to reclaim additional relief via self-assessment. Since this is dependent on the scheme structure, your expertise in providing clear guidance to clients is invaluable.

To bring clarity, it’s useful to focus on the two main methods of applying tax relief: net pay arrangements and relief at source.

Net pay arrangement

Under a net pay arrangement, contributions are deducted from gross salary before tax. Tax relief is applied automatically through PAYE, including for higher‑rate taxpayers, while National Insurance continues to be deducted as normal.

Since the 2024/25 tax year, non‑taxpaying employees in net pay schemes have become eligible for HMRC top‑up payments, addressing a long‑standing fairness gap advisers should be aware of.

Relief at source

Under relief at source, employee contributions are taken after tax and National Insurance. The provider then adds basic‑rate tax relief and reclaims it from HMRC.

This approach makes sure that eligible employees receive basic‑rate tax relief, including non‑taxpayers, without needing to take further action.

Higher‑rate and additional‑rate taxpayers must still reclaim any extra tax relief through self‑assessment.

Tax treatment depends on individual circumstances and may change.

The business benefits for employer clients

Benefit: reduced corporation tax

How it works: employer pension contributions are typically deductible as a business expense, provided they are wholly and exclusively for business purposes. This reduces taxable operating profits.

For example, if an employer reports £60,000 in operating profit and pays £10,000 in pension contributions, corporation tax is usually assessed on the remaining £50,000.

Benefit: lower National Insurance costs

How it works: salary sacrifice allows employees to exchange part of their salary for an employer pension contribution. This reduces taxable pay and can lower both employee and employer National Insurance liabilities.

For example, an employee earning £30,000 who sacrifices £3,000 into their pension reduces their contractual salary to £27,000.

Tax and National Insurance are then calculated on the lower figure, reducing the employer’s National Insurance bill.

Key limits and thresholds advisers should flag

When advising on auto‑enrolment schemes, it’s important to highlight contribution limits and allowances.

Tax relief on personal contributions is capped at £3,600 or 100% of taxable earnings each year, whichever is higher.
The annual allowance is currently £60,000 and applies to total contributions, including employer payments and tax relief.

In some cases, the annual allowance may be lower — for example, where the employee has accessed benefits or has a high income. Exceeding the allowance can trigger an annual allowance tax charge, making early identification essential.

Choosing the right provider for employer clients

Selecting the right provider is central to delivering a scheme that meets employer objectives and regulatory expectations.

While providers may look similar on the surface, advisers know the detail matters. Key areas to assess include:

Charges and overall value for money
Ease of implementation and employer onboarding
Payroll integration and ongoing administration
Member communications, engagement and support

These are just the foundations. Governance standards, long‑term support and regulatory resilience all play a role in identifying the right provider.