Why is overdue fees a self- interest threat?

Good question! Chocolate bar or subject heading?

I'm sorry?

No, I'm sorry - I hadn't realised that your question was already written as the subject line ... my mistake "Why is overdue fees a self- interest threat?" Imagine that we wish to qualify our audit opinion and the client is upset - that could mean that we could struggle to receive the amount due from our previous work not to mention the amount still to be billed for the current work So there is a temptation (at least in theory) to avoid upsetting the client in order that our debt will more likely be paid OK?