A list of Renfrew-shire residents about to be affected by 'under occupancy' rules included 296 people living in supported accommodation.
But the council's social workers and benefits staff looked into their cases and found 278 were exempt from the new Government rules - meaning they are not losing any of their housing benefit.
The remaining 18 have been offered budgeting support to cope with the so-called 'bedroom tax'.
This year, the council recruited extra staff to its Advice Works help squad to help people hit by benefits changes. Their work included helping vulnerable people fill in forms, supporting them through benefit appeals and offering benefits and money advice either face-to-face or over the phone.
The Advice Works team had 2600 new referrals between April and June and it continues to provide information sessions about welfare reform to other agencies and their staff.
Councillor Mike Holmes, deputy leader of Renfrewshire Council, said: "There's no doubt the UK Government's benefit changes are having a significant impact on some of our most vulnerable people.
"Earlier this year as the April introduction of the bedroom tax approached, we were particularly concerned about the impact of vulnerable members of our community losing some housing benefit.
"On top of writing to everyone in Renfrew-shire who was about to be affected, housing officers and social workers identified those who needed extra support in the run up to the tax being introduced, with many home visits to offer intensive advice taking place."