About the UK Pension Tax Relief Calculator 2026/27
Pension contributions get tax relief at your highest rate of income tax. With relief at source you pay 80% and your provider claims the 20% from HMRC; higher-rate taxpayers claim another 20% (and additional-rate 25%) through Self Assessment. With net pay, contributions come off your pay before tax.
Salary sacrifice also saves National Insurance (8% or 2%), so it is the cheapest way to pay in. You can get relief on contributions up to 100% of earnings or the £60,000 annual allowance.
