Hi Talial,
Many thanks for your quick response. I did try and reply earlier from my mobile but it is not showing so have tried again.
The amount was the opening balance on the 1/1/19.
I did ask a question in January about whether I need to try and balance the suffered and withheld accounts but was told that it should sort itself out.
Following your reply, I have subsequently used the journal entry to credit suffered and debit the withheld with the balance that was carried forward and it has now left the suffered as 0 which is correct and the withheld with an amount that is more like what is owing to HMRC for this month but still a little bit out. I will dig a bit more on monday to try and work out why this is.
Thank you again for replying.