Thanks for the link Kevin.
I have just completed the application on the basis that I am a Carer for someone in receipt of full AA. No request for date of any diagnosis but have had to attach a copy of the DWP letter making the award. I assume that any discount will be applied as at the date of the award commencing.
AA is one of the qualifying benefits for a disregard so that should be it. The date on the letter is the point at which the LA should have stopped collecting that part of the CT so it should be backdated as per the Local Government Finance Act 1992.
You don't say if you're a carer for a spouse or not if you can meet the conditions (below) your not eligible for CT either:
To be ‘disregarded’ as a carer, you must meet all the following criteria:
•You must provide care for at least 35 hours a week.
•You must live in the same property as the person you care for.
•You must not be the spouse or partner of the person you care for, or their parent if you care for a child under 18.
•The person you care for must receive either the middle or higher rate of the care component of Disability Living Allowance (only the higher rate in Scotland), the daily living component of Personal Independence Payment at any rate (only the enhanced rate in Scotland), Attendance Allowance at any rate (only the higher rate in Scotland), Armed Forces Independence Payment or the highest rate of Constant Attendance Allowance
K