A new client started to run his own payroll using Moneysoft Payroll from week 47 2018/19 onwards. He has subbies but is the only employee and his former advisor had run the payroll (using Moneysoft) weekly up to this point with all RTI submissions being made. He ran the payroll himself for month 12 but had set this up to run monthly after entering year to date figures month by month into the system (to match the relevant batch of weekly paid amounts). A single RTI was submitted for month 12. The P60 from the system shows the correct annual pay and NIC.
From my agent account I can see that HMRC have doubled up on the weekly NIC and included the total NI for the year based on the annual salary plus the NI based on the weekly submissions in the amounts showing as due for month 12. Not sure how this happens as month 12 RTI submission in isolation looks correct.
I contacted Moneysoft who indicated that only HMRC could help. I called the Employer Helpline (extended wait) and they put me through to a supervisor (after a further significant wait) who told me to call the Online Service Helpdesk. After a further extended wait and explaining the position the response was (actual words) 'what do you expect me to do about it............I don't know how to get it fixed...............I have neaver heard of this....' (I have call references).
My thoughts are that I will need to write to HMRC and shouldn't expect this to be resolved any time soon.
Anyone else had this. Can this be corrected through revised submission without digging a bigger hole?