My GP refuses to sign the certificate — who else can provide it?

Any registered medical practitioner can sign the certificate. If your GP is reluctant, ask a consultant psychiatrist, neurologist, or geriatrician involved in the person's care. Some councils also accept certificates from clinical nurse specialists, though a doctor's signature is most reliable.

The person I care for has dementia but no formal diagnosis yet — can I still apply?

You need a medical certificate confirming the impairment, which effectively requires a diagnosis. Accelerate the diagnostic process through the GP. Once the certificate is obtained and a qualifying benefit is in payment, the relief can be backdated.

Does the SMI person need to be the council tax payer?

No. The SMI person is disregarded from the resident count regardless of who is named on the bill. If they live with one other adult, that adult gets the 25% single person discount. If the SMI person lives alone, the property gets a 50% discount or full exemption under Class E.

Council Won't Accept My SMI Exemption — What Now

By GetRighted Legal Research TeamLast updated July 2026

Summary

Having your SMI council tax relief refused is frustrating, especially when you know the person qualifies. The refusal usually comes down to one of three things: the medical certificate is missing or incomplete, the qualifying benefit is not yet in payment, or the council's internal processes have failed. SMI disregard under SI 1992/548 Article 2 requires both a GP-signed medical certificate confirming severe impairment and receipt of a qualifying benefit (PIP daily living, DLA care, attendance allowance, or equivalent). If both are in place, the council cannot lawfully refuse.

The Two-Limb Test Explained

SMI relief requires satisfying two conditions at the same time. Limb 1: a medical certificate from a registered medical practitioner stating that the person has a severe impairment of intelligence and social functioning resulting from a qualifying condition (dementia, acquired brain injury, severe learning disability, Parkinson's, multiple sclerosis, stroke, or similar). Limb 2: the person is in receipt of at least one qualifying benefit — PIP daily living component, DLA care component (middle or higher rate), attendance allowance, ESA support component, or universal credit with a disability premium. Both must be met on the date relief is claimed from.

Common Reasons for Refusal — and How to Fix Them

The GP certificate uses incorrect wording: ask the GP to use the statutory phrase 'severe impairment of intelligence and social functioning'. The qualifying benefit has not yet been awarded: apply for PIP or attendance allowance first, then resubmit the council tax claim once the award is confirmed. The council claims the condition is not qualifying: dementia, stroke, brain injury, MS, Parkinson's, and severe learning disabilities all qualify — cite Article 2 of SI 1992/548.

Building an Airtight Application

Submit all of the following together:

GP or consultant letter using the statutory wording: 'severe impairment of intelligence and social functioning'
DWP award letter confirming receipt of a qualifying benefit, with the award start date
A covering letter requesting the disregard be applied from the later of the two dates (medical certificate date or benefit award date)
If previously refused: the council's refusal letter, so you can address their specific objection

Backdating the Relief

SMI relief should be applied from the date both conditions were first satisfied — not the date you apply. If the qualifying benefit was awarded before you obtained the medical certificate, the start date is the certificate date. If the certificate predates the benefit, the start date is the benefit award date. Request retrospective application and a refund of any overpaid council tax. There is no statutory time limit on backdating.

Sources

Council Tax (Discount Disregards) Order 1992, SI 1992/548, Article 2
Council Tax (Exempt Dwellings) Order 1992, SI 1992/558, Class E

Frequently Asked Questions

My GP refuses to sign the certificate — who else can provide it?: Any registered medical practitioner can sign the certificate. If your GP is reluctant, ask a consultant psychiatrist, neurologist, or geriatrician involved in the person's care. Some councils also accept certificates from clinical nurse specialists, though a doctor's signature is most reliable.
The person I care for has dementia but no formal diagnosis yet — can I still apply?: You need a medical certificate confirming the impairment, which effectively requires a diagnosis. Accelerate the diagnostic process through the GP. Once the certificate is obtained and a qualifying benefit is in payment, the relief can be backdated.
Does the SMI person need to be the council tax payer?: No. The SMI person is disregarded from the resident count regardless of who is named on the bill. If they live with one other adult, that adult gets the 25% single person discount. If the SMI person lives alone, the property gets a 50% discount or full exemption under Class E.

severe-mental-impairment-exemption
smi-discount-vs-smi-exemption
qualifying-benefit-council-tax

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