Pension Automatic Enrolment (AE) was introduced in October 2012 to require employers to provide and contribute to workplace pensions for eligible employees.
Employees are eligible if they earn more than £10,000 a year, are aged between 22 years and State Pension age (SPa) and are not already enrolled in a qualifying workplace pension.
The proportion of employees with a workplace pension grew substantially from 2013 until 2020. In 2020 nearly 8 out of 10 employees (78%) were workplace pension members, compared with less than 5 out of 10 in 2012. The increase in pension membership over this time demonstrates the success of AE policy in increasing participation in workplace pensions.
See the ONS report: