Redbridge Council Tax Disability Band Reduction and SMI Exemption Explained

Two council tax reliefs sit outside the main Council Tax Reduction scheme and are frequently missed by Redbridge residents with disabilities: the disability band reduction and the severe mental impairment (SMI) disregard. Neither is means-tested. Your income and savings are irrelevant. And both can be claimed alongside CTR, stacking the reductions.

Disability Band Reduction

The disability band reduction lowers your council tax band by one tier. If your property sits in Band D, you pay the Band C rate. Band A properties get a reduction to a notional Band A-minus, equivalent to a one-sixth discount.

You qualify if your home has been adapted for a disabled resident and includes at least one of:

• A room (other than a bathroom, kitchen, or toilet) that is predominantly used by the disabled person and is essential to their needs — typically a downstairs bedroom or a therapy room
• An additional bathroom or kitchen required to meet the disabled person's needs
• Sufficient floor space to permit use of a wheelchair indoors, where the wheelchair is required for normal domestic use

The disabled resident must live at the property. They don't have to be the council tax payer — a parent whose disabled child lives with them can apply, for instance.

How to apply: Contact Redbridge Council's revenues team. The council may send an inspector to verify the adaptation. You'll need to show that the room or adaptation exists and is used by the disabled person. The reduction applies from the date the conditions were first met, and it can be backdated.

This is not the same as Council Tax Reduction. The disability band reduction changes the band your bill is calculated from. CTR then applies its percentage reduction to the lower-banded amount. Getting both can substantially cut your bill.

Severe Mental Impairment (SMI) Disregard

A person who is severely mentally impaired is disregarded for council tax purposes — they don't count as an adult in the property. The effect depends on who else lives there:

• If the SMI person is the sole resident: They're exempt from council tax entirely (100% discount under Class U exemption).
• If they live with one other adult: The other person qualifies for the single person discount (25% off), because the SMI person is disregarded.
• If they live with two or more other adults: The SMI disregard alone does not create a single-person discount. Redbridge's CTR non-dependant deduction rules are separate, so do not assume the SMI disregard removes a deduction.

To qualify, the person needs two things:

1. A medical certificate from a registered medical practitioner (usually their GP) confirming they have a severe impairment of intelligence and social functioning that appears to be permanent. The certificate doesn't need a specific diagnosis — conditions that commonly qualify include dementia, severe learning disabilities, severe brain injury, and advanced Parkinson's disease.

2. Receipt of a qualifying benefit — this includes PIP daily living component, DLA care component (middle or higher rate), Attendance Allowance, ESA with the support component, Universal Credit with the limited capability for work-related activity element, or Incapacity Benefit on the long-term rate, among others.

Both conditions must be met simultaneously.

How to apply: Contact Redbridge Council's revenues team with the medical certificate and proof of qualifying benefit. If the person was eligible earlier but didn't claim, ask for backdating. Many councils backdate SMI disregards by several years — the reduction applies from whenever the person first met both conditions.

How These Stack with Council Tax Reduction

Both the disability band reduction and the SMI disregard reduce the base figure that Redbridge's Council Tax Reduction scheme works from. Here's an example of full stacking on a Band D property:

1. Disability band reduction drops the bill from Band D to Band C rates (say, £38.00 per week)
2. SMI disregard means the eligible person is not counted — if one other adult remains, the single person discount applies (25%), reducing the weekly bill to £28.50
3. Council Tax Reduction Scheme 1 (73% for disability benefit recipients) applies to £28.50, giving a weekly reduction of £20.81
4. Remaining weekly bill: £7.69

Without the disability band reduction and SMI disregard, the Scheme 1 CTR on a full Band D amount would leave a significantly higher bill.

These reliefs are claimed through separate routes — the disability band reduction and SMI disregard go through the revenues team, while CTR goes through the benefits team — so you need to apply for each one individually.

Worth Checking Even If You Already Claim CTR

If you or someone in your household receives PIP, DLA, Attendance Allowance, or has a severe cognitive impairment, it's worth checking whether these reliefs apply on top of whatever CTR you already receive. They're easy to overlook because the council doesn't automatically apply them — you have to ask.

Our Redbridge Council Tax Reduction guide covers how disability benefits interact with the five-tier CTR scheme, including the Scheme 1 protected tier that waives non-dependant deductions entirely.

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