Hi Dawn, glad you enjoyed it.
Obviously the view that the new Reg 101 is not retrospective is at this stage just the untested opinion of Paul Stagg. But as untested opinions go, his are as well-informed as you are likely to get. Therefore, lets work on the assumption that s16 of the Interpretation Act and the common law doctrine of a oresumption against retrospectivity do bite and that Reg 101 as amended from 10 April only applies to overpayments falling after that date.
My view (and as untested opinions go, mine are slightly less well-informed than Paul Stagg’s, lets face it) would be that the whole of any payment made after the amendment date falls to be considered under the new Reg. I believe this to be the case because:
– the Reg has changed in the way that causation of the overpayment determines the person from whom it is recoverable
– causation must surely be attributable to the circumstances that applied at the time of payment. For example, if I lied about my income in February and the Council found out about my lies in May but then went ahead and paid me arrears dating back to February, the overpayment has been caused by a post-April official error
– on the date when the Regs changed, the affected person(s) had not actually received any payment under the old version
– it just seems awkward to me that the same payment can be affected by two sets of recovery rules
Not particularly scientific, but the best I can do.