Non-Dependant Deductions and Bristol Council Tax Reduction

A non-dependant deduction is one of the least understood parts of Bristol's Council Tax Reduction calculation. When another adult lives in your home — an adult child, a parent, a friend — the council assumes they're contributing to the household bills, and deducts a fixed amount from your CTR award regardless of whether they actually pay you anything.

What Is a Non-Dependant?

A non-dependant is any adult aged 18 or over who lives in your home but isn't your partner and isn't liable for council tax at the property. The most common example is an adult child who's returned home or never left. It also includes adult relatives, friends, and lodgers.

The deduction is applied per person. Two working adult children living at home means two deductions from your CTR award.

The 2026/27 Deduction Rates

Bristol's scheme sets two main deduction levels based on the non-dependant's employment status and gross weekly income:

• £15.95 per week for non-dependants earning standard wages (gross income £279 per week or above)
• £5.20 per week for non-working non-dependants, or those earning under £279 per week gross

These deductions come directly off your CTR award, not off your council tax bill. If your CTR award would otherwise be £30 per week and a working non-dependant triggers a £15.95 deduction, your award drops to £14.05 and you pay the difference.

When Deductions Don't Apply

Certain non-dependants are exempt from the deduction entirely:

• Full-time students
• People receiving Pension Credit (Guarantee Credit element)
• Non-dependants who themselves receive Universal Credit without any earned income
• People on certain disability benefits (depending on the specific benefit combination)
• People under 25 receiving Income Support or income-based JSA

If an exempt non-dependant lives with you, no deduction is applied for them. This matters significantly — the difference between a £15.95 weekly deduction and zero is over £800 a year.

The Real-World Impact

A Reddit user in r/LegalAdviceUK reported that two working non-dependants in their household generated a combined £40 per week deduction, which exceeded their weekly council tax liability of £38.83. Their CTR was wiped out entirely — reduced to £0 — despite the claimant having a low income. This is a reported forum example, not Bristol's 2026/27 rate table: Bristol's listed deductions are £5.20 or £15.95 per week for each non-dependant, depending on status and income.

It catches people off guard because the deductions are based on the non-dependant's income, not on whether they actually hand over any money.

What You Can Do

If an adult child is about to move in (or already has), factor the deduction into your budget before it hits. Check their income level against the deduction tiers — if they're earning under £279 gross per week, the deduction is £5.20 rather than £15.95.

Report the change promptly. Failing to declare a non-dependant and then being caught later means an overpayment reversal, potentially covering months of incorrect awards.

If the deductions push your remaining bill beyond what you can afford, you may be able to apply for Section 13A discretionary hardship relief — a separate application to the council's Revenues team.

The Bristol Council Tax Reduction guide includes the full 2026/27 non-dependant deduction rate table and a worksheet for calculating the impact on your award before and after a household change.

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