Part of: UK Council Tax 2026 — Complete Guide → Council Tax Appeal 2026 — Challenge Your Band, Bill, or Charge
TL;DR: A liability dispute challenges the billing council's identification of who the Council Tax liable person is. The liable person hierarchy is set by section 6 of the Local Government Finance Act 1992: resident owner-occupier first, then tenant, sub-tenant, and so on down to the non-resident owner. Disputes most commonly arise over HMO arrangements, tenant vs landlord transitions, and joint occupier situations. Challenge through the billing council first, then the Valuation Tribunal England.
Last reviewed: 27 April 2026
The Legal Liability Hierarchy
Section 6 of the Local Government Finance Act 1992 sets out who is liable for Council Tax at any property. The hierarchy is:
1. Resident owner-occupier (freeholder or long-leaseholder living at the property)
2. Resident tenant (assured shorthold tenant or similar living at the property)
3. Resident sub-tenant
4. Resident licensee with security of tenure
5. Other resident
6. Non-resident owner (landlord not living at the property)
The person highest in the hierarchy who is actually present at the property is the liable person. If the top position is unoccupied (no owner-occupier), the second position is applied, and so on.
Common Liability Dispute Scenarios
HMO vs shared house: Where a property is licensed as a House in Multiple Occupation (HMO) under the Housing Act 2004 and the living arrangements mean the occupants do not have individual security of tenure, the landlord may be the liable person rather than individual residents. The precise Council Tax treatment depends on how the Valuation Office and billing council classify the property.
Tenant vs landlord transition: When a tenancy ends, the landlord becomes liable from the next day. Disputes arise where the billing council has the wrong end date for the tenancy, resulting in the landlord being billed for a period when the tenant was still liable, or the tenant being billed for a period after the tenancy ended.
Joint and several liability: Where two or more people are jointly resident and in the same position in the hierarchy (for example, two joint tenants), they are jointly and severally liable for the full Council Tax. The billing council can pursue any one of them for the full amount.
Sub-tenant disputes: Where a resident has sub-let rooms, the sub-tenants are in position 3 of the hierarchy. Disputes arise about whether the head tenant (position 2) or the sub-tenant (position 3) is the correct person to pursue.
Annexe classification disputes: Whether an annexe is a separate dwelling with its own liable person or part of the main dwelling affects who owes what.
How to Dispute Incorrect Liability
Step 1 - Written challenge to the billing council:
Write to the billing council's revenues team specifying why you believe you are not the correct liable person. Include evidence: tenancy agreements, move-out dates, electoral roll information, possession dates (for landlords), completion dates (for new owners).
Under section 16 of the Local Government Finance Act 1992, the billing council must consider the challenge and issue a written decision.
Step 2 - Council's determination:
The billing council reviews the evidence and makes a determination of who the liable person is. They may agree with your challenge, partially agree, or maintain the original position.
Step 3 - Appeal to the Valuation Tribunal England:
If the billing council's determination is unfavourable, appeal to the VTE within 3 months of the decision. Submit through valuationtribunal.gov.uk.
Joint and Several Liability: A Practical Problem
Section 6 of the Local Government Finance Act 1992 creates joint and several liability where two or more people are in the same position in the hierarchy. This has practical consequences:
The billing council can pursue any one joint occupier for the full amount. If you and a flatmate are joint tenants and your flatmate leaves without paying, the billing council can pursue you for the entire unpaid amount - not just your share.
Your recourse is against your former co-occupier, not the council. If you end up paying more than your share because the council pursued you, your legal remedy for the excess is a civil claim against the other occupier, not a challenge to the billing council.
Disputes about what happened during the joint tenancy period are not grounds for a liability dispute - they are private matters between the joint occupiers.
Understanding this is important before challenging liability in a shared occupancy situation. The liability dispute route (challenging who is the correct liable person) is appropriate where the council has misidentified the liability position entirely (for example, billing you when you were not resident at all during the relevant period).
The HMO Classification Impact on Liability
The Housing Act 2004 defines Houses in Multiple Occupation. For Council Tax purposes, the classification of a property as an HMO affects who is liable:
Shared houses with individual tenancies: Each occupant typically has individual security of tenure and is a resident tenant (position 2 in the hierarchy). Each occupant is jointly and severally liable.
HMOs where occupants have individual licences without security of tenure: The landlord may be the liable person (as non-resident owner, position 6) where occupants don't meet the "resident" test with adequate security.
The precise position depends on the specific tenancy and occupancy structure, which varies significantly between different HMO arrangements. Billing councils apply the LGFA 1992 hierarchy to the specific facts.
Disputes About the Dates of Liability
Many liability disputes turn not on who is liable but on when liability started or ended. Common date-related disputes:
Move-in date disputes: The billing council has the wrong start date for occupancy. Evidence: tenancy agreement commencement date, utility account start dates, electoral roll registration date.
Move-out date disputes: The billing council is billing for a period after you moved out. Evidence: tenancy end confirmation, date keys returned, new address registration.
Sale completion date disputes: For property sales, liability transfers on the completion date. A few days' difference between the billing council's records and the actual completion date can affect several months' billing if the billing period spans a Council Tax year boundary.
The HMRC Merger: No Effect on Liability Disputes
Liability disputes are determined by billing councils under section 6 and section 16 of the Local Government Finance Act 1992. The Valuation Office (now within HMRC) plays no role - liability is determined by who occupies and on what basis, not by property valuation. The VOA-HMRC merger has no effect on the liability dispute process.
Recovery Action During a Genuine Liability Dispute
Most billing councils pause recovery action (summons, enforcement) where a genuine liability dispute is under active consideration. If you have raised a written liability dispute with the billing council, notify the recovery team of this and request that enforcement action is paused pending resolution.
"Genuine" means a dispute based on specific factual grounds (dates, tenancy structure, occupancy), not a blanket refusal to pay. A billing council that pursues enforcement action while a genuine liability dispute is under review may be acting unreasonably, and this can be raised with the Local Government and Social Care Ombudsman if the billing council's conduct is maladministrative.
When to Seek Professional Help on Liability Disputes
Liability disputes can be legally complex, particularly where:
- The property is an HMO with an unusual licensing structure
- Multiple occupants over a long period create overlapping liability periods
- Joint and several liability has resulted in you paying more than your share and you are considering civil recovery
In straightforward cases (you moved out on a specific date and the billing council is using the wrong date), professional help is not needed - clear documentation resolves the issue. In more complex cases (HMO liability classification, annexe disputes, inheritance-related liability), a solicitor familiar with Council Tax or housing law may be valuable.
Citizens Advice offices can also advise on basic liability disputes without charge.
Frequently Asked Questions
The council is billing me but I moved out before the period they're billing me for - what should I do?
Write to the billing council with documentary evidence of your move-out date: tenancy end confirmation, the date you handed back keys, your new address registration (electoral roll, bank statements), or completion documents if you sold. Request a formal determination under section 16 and a correction to the billing period.
I'm a joint tenant and my co-tenant moved out without paying - am I responsible for their share?
Joint and several liability means the billing council can pursue you for the full amount. You are legally responsible for the full bill during the period of your joint tenancy. Your civil recourse is against your former co-tenant for their share - but this is a matter between you, not between you and the billing council.
The council says the landlord is not liable because we're the tenants - but we're in an HMO where the landlord should be liable. Who decides?
The billing council makes the initial determination of liability based on the property's legal structure and the occupants' status under the Housing Act 2004. If you believe the landlord is the correct liable person (based on HMO licensing and the non-self-contained nature of the accommodation), challenge the council's determination under section 16. Provide the HMO licence details and tenancy agreement showing the lack of individual security of tenure for each occupant.
I sold my property and the new owner says they've been billed for a period when I was still the owner - what should I do?
Contact both the billing council and the new owner's solicitors. The liability should switch on the precise completion date under section 6 of the Local Government Finance Act 1992. Provide the completion statement as evidence of that specific date. The billing council can correct the billing period once both sides of the transaction are documented.
I rent out a property as a furnished holiday let - am I liable for Council Tax?
Holiday let properties on the Council Tax list where no one has a permanent main residence are typically the landlord's liability as the non-resident owner. If the property qualifies for business rates instead (meeting the 140-day available, 70-day let threshold in England), it comes off the Council Tax list entirely. The liability question depends on the property's legal classification.
How we verified this
The liability hierarchy is from section 6 of the Local Government Finance Act 1992. The section 16 determination and appeal mechanism is from the same Act. The HMO liability question references the Housing Act 2004 and associated Council Tax regulations. Joint and several liability is from section 6 of the LGFA 1992. The Valuation Tribunal England's role in liability disputes is from the Council Tax (Alteration of Lists and Appeals) (England) Regulations 2009. MHCLG and IRRV provide professional guidance on liability disputes.
Sources & Verification
- Local Government Finance Act 1992 (s6, s16): https://www.legislation.gov.uk/ukpga/1992/14/contents
- Council Tax (Administration and Enforcement) Regulations 1992: https://www.legislation.gov.uk/uksi/1992/613/contents
- Housing Act 2004 (HMO definition): https://www.legislation.gov.uk/ukpga/2004/34/contents
- Council Tax (Alteration of Lists and Appeals) (England) Regulations 2009: https://www.legislation.gov.uk/uksi/2009/2270/contents
- Valuation Tribunal for England: https://www.valuationtribunal.gov.uk/
- MHCLG Council Tax guidance: https://www.gov.uk/government/collections/council-tax-statistics
- IRRV (Institute of Revenues, Rating and Valuation): https://www.irrv.net/
This article is for informational purposes only and does not constitute legal, financial, or tax advice. Council Tax rules vary by local authority and change annually. Always verify current rates and rules with your local council and gov.uk before making any decision.
