A shared services venture between Northamptonshire and Cambridgeshire county councils and Milton Keynes Council is projecting an overspend of £561,000 for 2019/20.
According to council documents, the figure is made up of a forecast underspend of £21,000, offset by a specific pressure of £582,000.
The latter figure relates to a forecast shortfall in delivery against the Cambridgeshire savings target of £919k.