Money Owed · Councils

Single Person Discount. The best-known of the five. If only one adult lives in the property, the bill drops by 25 per cent. The catch most people miss is who doesn’t count as an adult on the bill. If you live with a full-time student, with someone who has dementia or a severe learning disability, or with a live-in carer who looks after another resident 35 hours a week or more, you still count as living alone for council-tax purposes (Source: Local Government Finance Act 1992, Schedule 1.). About 8.4 million properties in England claim it (Source: MHCLG Council Taxbase 2024 (revised).). Consumer-rights research consistently flags a further pool in the hundreds of thousands of households who appear to qualify but never apply, mostly through the edge-case disregards above. At Band D that is £598 a year, or up to £3,588 over six years backdated.

The second-home overcharge refund. Since April 2025 councils can charge double the bill on second homes from the first day. Many properties counted as second homes actually fall inside an exception: a home being actively marketed for sale, a home being actively marketed for letting, a property in probate within the first twelve months after the grant, a home undergoing major structural repair, an annexe used as part of the main residence (Source: The Council Tax (Prescribed Classes of Dwellings) (England) Regulations 2024, SI 2024/1007.). If the second-home premium was applied and one of these exceptions applies, a refund of up to £2,392 a year at Band D is recoverable. With around 280,000 properties on the second-home register, the share of incorrectly-billed cases is small but the per-property recovery is large.

Disabled Band Reduction. If a disabled resident lives in the property and the home has been adapted for them, the bill drops by one band. A Band D household pays Band C rates. Band A households get an equivalent reduction (Source: gov.uk, Council Tax discounts for disabled people.). The adaptation test is broader than people think: a downstairs loo or wet room put in for an older parent counts; a wide hallway used by someone in a wheelchair counts; a spare bedroom kept as a daily medical space counts; a second kitchen used because of a feeding condition counts. Around 138,000 households in England claim this. The English Housing Survey reports well over a million UK homes have at least one significant adaptation (Source: English Housing Survey 2023-24, adaptations chapter.). The eligible pool for the band reduction is many times the current claimant count.

Live-in carer disregard. If someone in your home provides 35 hours or more of unpaid care every week to another resident (not a spouse, not a parent of a child under 18), the carer is not counted as an adult for council-tax purposes. A two-adult household where one person cares for the other reverts to a one-adult household, saving 25 per cent. Around 1.5 million UK adults provide 35+ hours of unpaid care each week (Source: ONS Census 2021; gov.uk Council Tax: who has to pay.). A meaningful share live with the person they care for and qualify for the disregard.

None of these discounts is means-tested. None requires you to be in arrears. And every one of them is backdate-eligible in principle, all the way back to the date you first qualified, subject to a six-year cap most councils accept without argument.

Backdating is offered, not advertised. Most councils will pay six years if you ask. Few mention it on the form.

For the severe-impairment discount, the standard council practice is to run the backdate from the date the qualifying disability benefit was first in payment, not from the date a doctor signs the impairment certificate (Source: Council backdating practice; Limitation Act 1980 s.9.). A doctor today can certify an impairment that has been present for years. Provided a qualifying benefit was being paid through that whole period, the backdated cheque usually covers the same period.

The real obstacle has always been the application form, not the rules. Each English local authority runs its own. From April 2027 the government has committed to a single standard application across all councils, and to renaming the severe-impairment discount as Significant Cognitive Impairment (Source: Money and Mental Health Policy Institute, Council Tax campaign win, April 2026.). Eligibility is not changing. The paperwork is being simplified.

Every council in England runs its own application for each discount. The forms are short and free. The sequence that works fastest is the same regardless of which discount you are claiming:

1. Pull together what you already have: the latest council-tax bill, any disability-benefit award letter (PIP, Attendance Allowance, DLA care component, ESA, or Universal Credit limited-capability), and proof of who lives in the property.
2. For severe impairment: ask the cared-for person’s GP for a dated letter confirming the impairment. Most surgeries charge nothing for this letter when it is for a council application. The GP does not need the person to attend.
3. Open the council website. Search "council tax discount". Pick the discount that applies. Most forms are online and take five to ten minutes.
4. In the comments box or covering letter, ask for the discount to be backdated to the date the eligibility first applied. Most councils pay six years if asked.

Untap reads your household situation and tells you which of the five apply, with the direct link to your specific council’s form. Forward your latest council-tax bill to your Untap inbox, or use the one-off wizard. We do not file the application for you. That part stays with you, on the council’s portal.

One discount we have deliberately left out of this piece: challenging the council-tax band itself. The 1991 valuation was a one-off snapshot and a meaningful share of UK homes sit in the wrong band today. That mechanism is different enough, and the math is interesting enough, to deserve its own piece. The how-to lives in our guide Council Tax wrong-band challenge and we will return to it as a single-anchor research piece later this year.

The full how-to for the most-claimed of the five is here: Single Person Discount.