A deal signed in February last year established Capitadbs, a business unit which runs a host of departments within the council including architecture, personnel and payroll.
But the partnership has run into difficulty. Highways management and the creation of employment has forced councillors to put forward a proposal asking for more information before they agree to the extension of the contract. The proposal will be discussed at a cabinet meeting on Tuesday.
Capita wants to extend the contract to January 2009 as part of an agreement arranged when the original deal was signed.