Tax year 2016/17 - Catastrophic IT failure meant payroll was up the creek without a paddle. Lack of initial knowledge meant things went awry at the year end. Somehow ended up with large credit figures on nic account. Previous accountant was unable to resolve prior to leaving and its still outstanding with HMRC and in their disputed claims dept still open. Guidance required on what company can do to push it on? options are use PAYE tools to add month 12 rti again, not nice lots of employees. May have previous backup on sage software, but is it going to make it worse if the other rti's are not there?
Anyone got any bright ideas?