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Severely Mentally Impaired (SMI) discount

If you are registered as having a mental impairment you may be entitled to a discount.

A person medically certified as having a severe impairment of their intellectual or social functioning (however caused), that appears to be permanent, may be eligible to a Council Tax discount.

The Council Tax service cannot and does not assess mental impairment. This assessment must be determined by a suitable medical professional, usually a GP.

Conditions that can lead to severe mental impairment include Alzheimer's disease, Parkinson’s disease, severe learning difficulties, a stroke and other forms of dementia.

To be eligible, the SMI person must also be entitled to one or more of the following benefits:

  • Short term or long term incapacity benefit
  • Attendance Allowance
  • Short term or long term Severe Disablement allowance
  • Higher or middle rate care component of disability living allowance
  • Disability element of working tax credit
  • Unemployability supplement
  • Constant Attendance allowance or Unemployability allowance under the industrial injuries or war pensions scheme
  • Income support which includes a disability premium because of incapacity for work
  • Personal Independence Payment Medium or Enhanced Living Allowance

How to apply

Download the application pack

This includes all the forms, declarations and information on what documents you will need to send to us.

Send your completed forms, signed declarations and required documents to us at Islington Council, PO Box 34750, London N7 9WF or email to

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Data protection: We will handle your personal information in line with the Data Protection Act 1998 and in accordance with the council’s Fair Processing Notice.