Council Tax Reduction Non-Dependant Deductions — What Happens When an Adult Child Lives With You
What Is a Non-Dependant Deduction?
If another adult lives in your home — typically an adult child, a sibling, or a friend — the council assumes they contribute towards your household costs. It deducts a fixed weekly amount from your council tax reduction award. This is called a non-dependant deduction, and it applies even if the person doesn't actually give you any money.
A non-dependant is anyone aged 18 or over living in your home who isn't your partner, isn't a child you're responsible for, isn't a lodger paying commercial rent, and isn't a joint tenant.
The 2026/27 Deduction Rates
The deduction depends on the non-dependant's gross weekly income:
| Non-dependant's situation | Weekly deduction |
|---|---|
| Gross income £605 or more per week | £15.95 |
| Gross income £485 to £604.99 | £13.30 |
| Gross income £279 to £484.99 | £10.60 |
| Gross income below £279, or not working | £5.20 |
| Receiving Pension Credit (Guarantee or Savings) | £0 (nil) |
| Full-time student or under 18 | £0 (nil) |
The income-band deductions apply when the non-dependant is in remunerative work, which means at least 16 hours a week. An adult aged 18 or over who is not in remunerative work falls in the £5.20 row, unless a nil-deduction category above applies.
Even the highest deduction — £15.95 per week, or about £830 per year — rarely wipes out a council tax reduction award entirely. If your maximum weekly reduction is £40 and the deduction is £15.95, you still receive £24.05 per week.
When No Deduction Is Made
The exemptions are where most families leave money on the table. No non-dependant deduction is applied if you (the pensioner applicant) or your partner:
- Receive Attendance Allowance (either rate)
- Receive PIP daily living component (standard or enhanced)
- Receive DLA care component (middle or highest rate)
- Receive Armed Forces Independence Payment
- Receive Pension Age Disability Payment
- Are registered as severely sight-impaired or blind
Notice the exemption depends on what you receive, not what the non-dependant earns. A pensioner receiving Attendance Allowance has zero non-dependant deductions applied — even if their adult child living at home earns £50,000 a year.
This is one of the most under-claimed aspects of the pension-age scheme. Many families assume that having a working adult child at home disqualifies them from meaningful support. In reality, if the pensioner receives any qualifying disability benefit, the non-dependant's income is irrelevant.
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Multiple Non-Dependants
If two or more non-dependants live with you, a separate deduction is calculated for each one, based on each person's individual income. But each exemption is assessed individually too — if one non-dependant is a full-time student (nil deduction) and another earns £300 per week (£10.60 deduction), only the £10.60 applies.
What Evidence the Council Needs
The council will ask about everyone living in your household. For each non-dependant, you may need to provide:
- Their gross weekly income (payslips or a letter from their employer)
- Proof of any qualifying benefit they receive (Pension Credit award letter, Income Support, income-related ESA)
- If you're claiming the disability exemption: your own Attendance Allowance, PIP, or DLA award letter
If a non-dependant refuses to share their income details, tell the council and ask what evidence it can accept to assess the deduction.
For a full non-dependant deduction decision framework — including flowcharts for each exemption scenario — see the Pensioner Council Tax Reduction Claim Guide.
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