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Tax relief on pension contributions explained
Tax relief on pension contributions explained
Rebecca Russell avatar
Written by Rebecca Russell
Updated over a week ago


There are 3 different methods of processing pension scheme deductions:

This article lays out the differences in each type and the things that employers should consider when choosing who to operate their pension scheme.

Salary Sacrifice

What is salary sacrifice?

Salary sacrifice is the method of reducing gross pay by the amount of the pension contribution which in turn reduces the pay on which you calculate:

  • Tax

  • Employee and Employer National Insurance

Salary sacrifice is a tax-efficient and cost-effective way of deducting both employee and employer pension contributions.

Considerations for a salary sacrifice scheme

When setting up a salary sacrifice scheme it is important to remember that

  • Employees must agree to enter in to a salary sacrifice arrangement, as they effectively reduce their gross pay

  • Salary sacrifice reduces gross pay which means that an employee’s eligibility for things such as statutory sick and statutory maternity pay may be impacted

  • National minimum wage is calculated on post-sacrifice earnings. It is not permissible to reduce an employee to below the minimum wage because of their salary sacrifice deductions.

Relief at Source

What is relief at source?

Relief at source is the process whereby pension deductions are taken from net pay after the deduction of tax.

80% of the employee's pension deduction will be taken via the employee's pay, and the remaining 20% will be automatically reclaimed by the pension provider which is then added in to an employee’s pension pot.

The 20% tax relief will still be given if the employee has not paid tax in the tax year due to their earnings falling below the annual threshold (£12,500 for 2019/20).

Considerations for operating relief at source

  • The month to month cost is higher for an employee and employer as deductions are taken after the calculation of tax and National Insurance

  • The annual saving is still lower than a salary sacrifice arrangement as there is no National Insurance relief

  • Relief is paid straight in to an employee’s pension pot, unlike salary sacrifice arrangements

  • Employee’s in higher tax brackets need to reclaim any additional tax relief via self-assessment

Net Pay Arrangement

What is a net pay arrangement?

Processing pension deductions through a net pay arrangement is where deductions of pension are taken before the tax calculation, lowering gross taxable pay.

This arrangement does not provide a National Insurance saving for the employee or employer.

Considerations for net pay arrangement

  • Relief is given at the rate of tax the employee pays

  • As a result no relief is available if an employee does not pay tax

The below table shows the impact net impact to the employee and employer of each arrangement

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