Council Tax Exemption Available for Nine Medical Conditions Amid Bill Increases
As council tax rates rise from April 2026, individuals diagnosed with specific severe medical conditions may be eligible for significant discounts, potentially reducing their bill to zero. To qualify, applicants must have a doctor's certification and be receiving certain benefits, according to financial expert Martin Lewis and his team at Money Saving Expert.
Understanding Severe Mental Impairment and Council Tax Reductions
The key to this exemption is a medically diagnosed, permanent condition known as 'Severe Mental Impairment' (SMI). Martin Lewis, a prominent figure on BBC and ITV, explains that SMI is defined as a severe impairment of intelligence and social functioning that appears to be permanent. He emphasizes that the term is not his own but is used in official contexts.
The Money Saving Expert team clarifies that the SMI council tax discount can range from a minimum of 25% up to 100%, effectively wiping out the entire bill in some cases. This reduction applies to the household's council tax, offering substantial financial relief.
Medical Conditions That Qualify for Exemption
The conditions classified as SMI for council tax purposes include:
- Dementia
- Alzheimer’s disease
- Parkinson’s disease
- Severe learning difficulties
- Multiple sclerosis
- Long-lasting effects of a severe stroke
- Schizophrenia
- Schizoaffective disorder
- Other severe, permanent cognitive disorders
It is important to note that SMI is a medical diagnosis in itself, but it can stem from various underlying causes such as dementia, Alzheimer's, or the aftermath of a severe stroke.
Eligibility Criteria and Household Considerations
To qualify for the discount, individuals must have their condition medically certified by a doctor. Additionally, they must be receiving specific benefits, a requirement that changed following a High Court ruling. Previously, in England and Wales, eligibility for the benefit was sufficient, but now actual receipt is necessary.
The Money Saving Expert team further explains that the presence of under-18s, full-time students, or other individuals with SMI in the household does not affect the discount. For example, a household where someone with SMI lives with an under-18 still qualifies for the 100% discount, as these individuals are not counted towards council tax liability.
This policy provides crucial support for those with severe health challenges, helping to alleviate financial burdens during a time of increasing council tax rates. Residents are encouraged to check their eligibility and apply through their local council to access these potential savings.



