The four day week trial at South Cambridgeshire District Council could be extended into next year, as the leadership said it will save the authority 'thousands'.
The district council said there had been a reduction in staff turnover which meant it was spending less on agency staff.
It added that there had also been an improvement in health and wellbeing since the launch of the trial for desk based staff in January.
The four day week trial, which sees staff work fewer hours for the same pay, was launched by the authority to see if it will help encourage existing staff members to stay, and help it in recruitment.
The district council is now considering extending the trial for desk based staff until March 2024.
It is also planning to expand the trial to include staff in the shared waste service, which will need agreement from Cambridge City Council before going ahead.
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At a meeting of the employment and staffing committee on May 2, Councillor John Williams, lead cabinet member for resources, said the authority had not seen a significant decline in its performance over the trial period.
He said: "[Reduction in staff turnover] actually has brought about already a saving in what we have been paying in agency staff fees.
"We have statutory duties to carry out regardless of whether or not we have the staff available to do them, so we have to employ agency staff and that is much more expensive than employing these people directly through the council.
"We have already seen from the three month trial that we could be saving £300,000 at the end of this year.
"The intention was to look for a saving of £1million and I think as the leader of this council has said in interviews, we can do an awful lot with £1m.
"We are seeing that our performance has broadly not been affected, our staff wellbeing certainly has improved and we have started to see that we have started to overcome the retention issues and I am sure the recruitment issues in due course."
Cllr Williams said the trial did not mean the authority would be a "four day week council", and said the authority will "continue to operate 24/7".
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