CARMARTHENSHIRE councillors will vote on a motion of no confidence in their leadership today when they debate a report that claimed payments to the chief executive were "unlawful".
Mark James has stepped aside while police investigate why he was allowed to opt out of a pension scheme and receive cash instead.
Payments for this and for libel action costs were "unlawful", the Wales Audit Office (WAO) ruled.
Mr James said it was "right and proper" he should not be at work while Gloucestershire Police conclude their inquiries. He maintains that he is absolutely certain that neither he nor any of his officers had done anything wrong. The council has also defended its actions.
Today's meeting is open to the public and council leader Kevin Madge has promised a "frank, open and honest discussion".
Councillors will hear from the assistant auditor general and details of the legal advice which the council said supports its actions.