The Pensions Regulator (TPR) investigated more than 500 suspected breaches of auto-enrolment (AE) legislation in just six months and 590 in total since October 2012, figures show.
As a result, the regulator took action under its compliance and enforcement policy in 134 instances, to 29 January this year.
Responding to a Freedom of Information (FoI) request from IFAonline's sister title Professional Pensions, TPR revealed three compliance notices have been issued to companies failing to complete registration, while a further compliance notice was issued to an employer that failed to establish a scheme.
The compliance notices were dated between August 2013 and this January.
An unpaid contributions notice was also served on 6 December 2013, while a statutory inspection of a company was carried out on 30 October 2013.
TPR sent 101 warning letters
In addition, TPR delivered 28 instructions to companies at risk of non-compliance prior to end of January 2014, and 101 warning letters for minor alleged breaches were sent in the same period.
The 590 investigations into possible AE non-compliance included cases where employers themselves contacted the regulator with concerns ahead of staging, TPR said.
It also included some smaller employers who requested their staging date be moved forward, while other cases were as a result of reports from whistle blowers.
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