Each benefit has a prescribed time within which a claim must be made in order to establish entitlement—in most cases, three months. With income support and jobseeker’s allowance a claim can be backdated for up to three months in certain circumstances.
There is no time limit to the period that the Department can seek to recover an overpayment, just as there is no time limit on the payment of arrears of benefit where the Department is responsible for an underpayment.