More than 18 million workers will have passed through the auto-enrolment process by the end of next year, latest figures from The Pensions Regulator (TPR) forecast.
The figure includes workers who are already members of workplace pension schemes, but whose eligibility for auto-enrolment will be processed by their employer.
Two million workers are expected to be enrolled before the end this year, as a hundred large companies reach their staging dates. This will be followed by 16.15 million next year.
The biggest push is likely to be spring next year, when about 500 firms are scheduled to begin auto-enrolling staff. About a third of all scheduled enrollment will take place in March and April 2013.
A TPR spokesman said the organisation has written to every employer in order to compile the figures but stressed that, due to the possibility of changing staging dates, it was not possible to be entirely accurate.
He said: “At any point any employer can bring forward their date to different month and it is absolutely in their rights to do that.”
Over time, the number of employees enrolled per month, initially between 1 and 2 million, will reduce, but the number of employers would rise, he said. Some months, such as December 2013, would be singled out as breaks.
The figures reflect auto-enrolment rates for existing companies, which have been given staging dates between 2012 and 2017.
However, with more than a hundred thousand new companies expected to be set up every year of this period, a second round of auto-enrolment will run between May 2017 and February 2018 to accommodate them.
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