Part of: UK Council Tax 2026 — Complete Guide → Council Tax Exemptions 2026 — All 12 Exempt Classes Explained
TL;DR: Class D Council Tax exemption applies to properties left empty because the sole resident is detained - in prison, in a hospital under mental health legislation, or under immigration detention. The exemption lasts for the full period of detention with no time limit. The property must have been the detained person's main residence before detention. If a partner or other adult remains in the property, Class D does not apply.
Last reviewed: 27 April 2026
The Legal Basis for Class D
Class D of the Council Tax (Exempt Dwellings) Order 1992 provides a Council Tax exemption for properties where the person who would otherwise be the liable resident is detained and the property is empty.
The Class recognises that a person held in custody has no practical ability to occupy their property, no income from employment (in most cases), and has not chosen to vacate their home - the state has removed them from it. Imposing a Council Tax liability on an empty property left behind by a detainee would create a financial burden on an individual who cannot meaningfully engage with it.
The Local Government Finance Act 1992 provides the enabling power under which the 1992 Order was made.
Types of Detention That Qualify for Class D
Class D covers three distinct types of legal detention:
Custodial sentence in prison: A person sentenced to a term of imprisonment by a criminal court under the Criminal Justice Act 2003 or earlier legislation is detained within the meaning of Class D. This covers all custodial sentences - short sentences (weeks), medium sentences (months to a few years), and long sentences (years to life). The sentence must be a custodial sentence; suspended sentences, community orders, and electronic monitoring at the person's own address do not constitute detention for Class D purposes.
Remand in custody before trial: A person who has been charged with an offence and remanded in custody by the court (held in prison awaiting trial rather than released on bail) is detained for Class D purposes. This is an important provision - remand prisoners who are subsequently acquitted at trial will have been genuinely detained and their property should have been exempt throughout the remand period.
Mental Health Act detention: A person detained under the Mental Health Act 1983 (including amendments under the Mental Health Act 2007) is detained for Class D purposes. This covers Section 2 (assessment detention - up to 28 days), Section 3 (treatment detention - up to 6 months, renewable), and longer-term secure mental health placements. It does not cover voluntary admission to psychiatric hospital (where the patient is free to leave).
Immigration detention: A person detained under the Immigration Act 1971 (or subsequent immigration legislation) in an immigration removal centre or detention facility is detained for Class D purposes. This covers people held pending deportation or removal from the UK.
What Does NOT Qualify as Detention for Class D
Several situations are commonly confused with detention but do not qualify for Class D:
Suspended custodial sentences: A person with a suspended sentence is not in prison and is not detained. They live at their normal address. Council Tax continues as normal.
Community orders and community payback: A person subject to unpaid work requirements, supervision requirements, or other community orders (also called community payback) is not detained. They remain at their home address. Council Tax continues.
Electronic monitoring ("tagging") at home: A person required to wear a tag and remain at their home address is at their home - not detained in a separate institution. Class D does not apply.
Voluntary psychiatric admission: A person who has voluntarily admitted themselves to psychiatric hospital and is free to leave is not detained under the Mental Health Act. Class D requires compulsory detention under a formal MHA section.
Approved premises (formerly "probation hostels"): A person required to live at approved premises as a licence condition on release from prison is not detained - they are at liberty, just with conditions attached to where they must live.
Class J and the Carer Disregard: Related but Different
Class J (empty property exemption for the carer) and the Carer Disregard (reducing the carer's Council Tax at their current property) are related but address different situations:
Class J: Applies when the carer has moved out of their own property to provide care elsewhere. Their original property is empty. Class J exempts the empty property.
Carer Disregard: Applies when the carer lives at the same property as the cared-for person. The carer is "disregarded" as a resident adult, potentially enabling the Single Person Discount at the current (occupied) property.
These two provisions cannot apply simultaneously to the same property - because:
- The Carer Disregard requires the carer to reside at the property (to be "disregarded" as a resident)
- Class J requires the carer to have vacated the property (it must be empty)
However, they may apply across different properties in the same care arrangement. The carer's empty original property qualifies for Class J; at the property where care is being provided (where the carer now lives), the carer disregard may apply if the cared-for person is also disregarded (under SMI or similar provisions).
The Unpaid Care Dimension
Class J was specifically designed for unpaid, informal carers - family members and close friends who voluntarily give up their own homes to provide care, rather than professional carers who are employed to do so.
Carers UK estimates that approximately 5.7 million people in the UK are unpaid carers who provide substantial care (20+ hours per week). Many of them have made significant personal sacrifices including leaving their own homes to provide care. Class J recognises this sacrifice in the Council Tax framework by exempting the empty property they leave behind.
The paid carer boundary: If a carer is employed by a professional care organisation (a care agency, NHS trust, or social care provider) and is placed in the cared-for person's home, Class J does not apply - they are an employee, not a resident carer who has vacated their own home for non-professional reasons. The exemption is specifically for the genuine sacrifice of an informal carer who leaves their own home.
Unlimited Duration and Evidence Requirements
Class D has no time limit. It continues for the full period of detention, whether that is weeks, months, or years.
The exemption ends when:
- The person is released from detention
- Another person moves into the property (Class D requires the property to be empty)
- The property is sold or transferred
Evidence billing councils typically request:
For prison detention: A letter from HM Prison Service or the holding prison confirming the prisoner's name, the holding establishment, and the sentence or remand status. The prisoner's family or solicitor can request this. Some councils accept a solicitor's letter confirming custodial detention.
For mental health detention: Hospital admission documentation confirming the person is detained under a formal MHA section (not voluntarily admitted). This may come from the hospital's administrator or from the approved mental health professional (AMHP) who made the application.
For immigration detention: Home Office documentation confirming immigration detention status. This may be from the detention centre or from the detainee's solicitor.
The Joint Occupier Problem
Class D requires the property to be empty. If a partner, family member, or lodger remains in the property while the detainee is away, Class D does not apply - the property is occupied.
However, the remaining occupant may qualify for the Single Person Discount (25% off) if they are the sole non-disregarded adult. The detainee themselves is effectively removed from the household for Council Tax purposes during their detention.
Example: Mr Chen is sentenced to 2 years in prison. His wife remains at home with their 14-year-old child. The property is occupied. Class D does not apply. Mrs Chen is the sole non-disregarded adult (the child is under 18 and disregarded). Mrs Chen qualifies for the Single Person Discount (25% off) during Mr Chen's sentence.
Example 2: Mr Okafor is remanded in custody. He lives alone. The property is empty. Class D applies. No Council Tax is payable during the remand period.
What Happens on Release
When the detained person is released, Class D ends from the release date. The person needs to notify the billing council of their return. If they return to the property, Council Tax resumes from their return date. If they do not return (for example, they move to approved premises instead), the property's status depends on whether anyone else moves in or whether it remains empty.
If the property has been empty throughout the detention and the person is released into approved premises (not returning home immediately), the property may continue to be empty without Class D - at that point, standard empty property rules apply.
Interaction with Other Exemptions
In some cases, Class D may interact with other exemptions. For example, a person who is detained under immigration detention and also has severe mental health conditions might have a property that qualifies for Class D during their detention period.
If the detained person dies while in detention, Class D ends on the date of death and Class F (deceased's former home) may apply from the date of grant of probate.
The Property Maintenance Challenge During Detention
One practical issue for detainees and their families is how to manage an empty property during a potentially extended detention period:
Building and contents insurance: Most household insurers require notification when a property is left unoccupied for more than 30 to 60 days. Extended vacancy can void or restrict cover under standard policies. Families should check the insurance position and consider unoccupied property insurance if needed.
Security: An empty property is at greater risk of unauthorised entry, vandalism, or utility damage (burst pipes in winter). Families should arrange for regular inspection visits (weekly or fortnightly) and ensure the property is appropriately secured.
Utility bills: Gas, electricity, and water standing charges continue even when a property is empty. If the property will be empty for many months, it may be worth contacting utilities about standing-charge reduction options.
Council Tax only: Class D covers Council Tax at the detained person's empty property. It does not affect Council Tax on any other properties, utility bills, mortgage payments, or any other financial obligations. These continue to accrue regardless of Class D status. Families should ensure these are managed during the detention period.
Evidence gathering: For longer sentences, families should keep a clear record of the Class D application, the council's confirmation letter, and any periodic reviews. This documentation is valuable if the billing council later queries the exemption or if a dispute arises.
The Appeal Route
If a billing council refuses a Class D application - perhaps because they are not satisfied that the detention is of a qualifying type, or because they dispute whether the property was the person's main residence - the liable person can:
1. Request an internal review by a senior officer.
2. If the review fails, appeal to the Valuation Tribunal for England (or the Welsh or Scottish equivalent).
The tribunal considers whether the statutory criteria are met. Provide the detention documentation, evidence of the pre-detention main residence, and evidence that the property is empty.
Frequently Asked Questions
My brother is in prison - how do I apply for Class D on his behalf?
Contact your brother's billing council and explain that he is in prison and that his property (which was his main home) is now empty. You may need to provide evidence of his detention (a letter from the prison, or confirmation from his solicitor) and evidence that the property is empty and was his main home before imprisonment. As his family member, you can typically apply on his behalf if he provides written consent or if you hold Power of Attorney.
My relative was remanded in custody but was found not guilty - can we claim a refund for the remand period?
Yes. Class D should have applied during the entire remand period if the property was empty and was the remand prisoner's sole main residence. Contact the billing council with evidence of the remand period (court documentation, solicitor confirmation) and request a retroactive Class D exemption and refund for the period concerned.
My partner is in an immigration removal centre - does Class D apply to our home?
If you (the partner) remain at the property, Class D does not apply because the property is occupied. However, if you have also had to leave the property (for example, because you are also in a detention or removal process, or because you cannot afford to maintain the property alone), Class D may apply to an empty property. Contact the billing council for advice specific to your circumstances.
My mother is detained under Section 3 of the Mental Health Act - does Class D apply?
Yes. Compulsory detention under Section 3 of the Mental Health Act 1983 (up to 6 months, renewable) qualifies as detention for Class D. The property must be empty and must have been her main residence before the detention. Apply with hospital documentation confirming the Section 3 detention.
Does Class D apply if the property is let to a tenant while the owner is in prison?
No. Class D requires the property to be empty. If the owner has a tenant in the property, Class D does not apply. The tenant is the liable person during the tenancy. The owner's status as a prisoner does not affect the tenant's Council Tax liability.
How we verified this
Class D eligibility (types of detention) is from the Council Tax (Exempt Dwellings) Order 1992. The Criminal Justice Act 2003 provides the framework for custodial sentences. The Mental Health Act 1983 (as amended by the Mental Health Act 2007) defines compulsory detention under MHA sections. The Immigration Act 1971 provides the basis for immigration detention. MHCLG guidance covers Class D administration. The IRRV provides professional guidance to billing councils on detained persons' exemptions.
Sources & Verification
- Council Tax (Exempt Dwellings) Order 1992 (Class D): https://www.legislation.gov.uk/uksi/1992/558/contents
- Local Government Finance Act 1992: https://www.legislation.gov.uk/ukpga/1992/14/contents
- Criminal Justice Act 2003: https://www.legislation.gov.uk/ukpga/2003/44/contents
- Mental Health Act 1983 (as amended): https://www.legislation.gov.uk/ukpga/1983/20/contents
- MHCLG Council Tax guidance: https://www.gov.uk/government/collections/council-tax-statistics
- gov.uk Council Tax exemptions: https://www.gov.uk/council-tax/who-doesnt-pay
- 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.
