Following an earlier post I've just received the promised HMRC apology for their cockup, which nearly caused a client's valued employee to resign:-
"Further to your telephone call to our Contact Centre regarding the 2014-2015 income details.
-RTI submissions had been duplicated causing an underpayment of tax this has now been corrected and the underpayment cancelled"
I thought HMRC used computers systems for PAYE so how can an RTI submission to them be duplicated.(they certainly were not sent twice) What they don't answer is that the figures they quoted in their original letter were for different not the same amounts. Duplication means the same doesn't it ?