Some people will be eligible for discounts, disregards and exemptions on their council tax. The Alzheimer’s Society have a page with clear advice on the different discounts which you may be eligible to apply for. These exemptions are not exclusive to Dementia, so the information is useful to a wide audience.
Rossendale Borough Council – Reduce your bill
https://www.rossendale.gov.uk/info/210143/council_tax/10590/reduce_your_bill
Rossendale Borough Council – Benefit calculator
https://rossendale.entitledto.co.uk/home/start