Part of: UK Council Tax 2026 — Complete Guide → Council Tax Exemptions 2026 — All 12 Exempt Classes Explained
TL;DR: Council Tax exemptions are not applied automatically - you must apply through your billing council. Most councils have an online exemption application form that asks you to select the applicable Class. The form then requests evidence specific to that Class. Processing typically takes 14 to 28 days. Exemptions can usually be backdated to the date the qualifying conditions were first met.
Last reviewed: 27 April 2026
Step 1: Identify Which Exemption Class Applies
The Council Tax (Exempt Dwellings) Order 1992 contains multiple exemption Classes. Before applying, identify which Class applies to your situation:
- Class A: Major repair works making property uninhabitable (6-12 months limit)
- Class B: Charity-owned empty property (6 months limit)
- Class D: Sole resident is detained (prison, MHA, immigration - unlimited)
- Class E: Sole resident has moved permanently into care home or hospital (unlimited)
- Class F: Deceased person's former home (6 months from grant of probate)
- Class G: Occupation prohibited by law (unlimited)
- Class L: Repossessed property - mortgagee in possession (unlimited)
- Class N: All adult residents are full-time students (unlimited during course)
- Class U: All residents are severely mentally impaired (unlimited)
If you are unsure which Class applies, contact the billing council's revenues team and describe your situation - they will identify the applicable Class.
Step 2: Find the Application Form on Your Council's Website
Go to your billing council's website. Most councils offer an online exemption application form under "Council Tax discounts and exemptions" or "Apply for Council Tax exemption."
If you cannot find the form online, call the revenues team or email the Council Tax team. Most councils can process exemption applications by phone or will send you a paper form by post.
Step 3: Gather the Required Evidence
Different Classes require different evidence. Here is a brief guide to evidence requirements by Class:
Class A (major repairs): Planning permission (if applicable), building regulations approval or notification, contractor schedule of works, photographs of the uninhabitable property showing stripped-back services (no kitchen, bathroom, heating, or electrics).
Class B (charity-owned empty): Charity Commission registration documentation, Land Registry ownership evidence, confirmation of the last charitable use of the property, confirmation of current vacancy.
Class D (detained person): HMP Prison Service letter confirming the prisoner's name, holding establishment, and sentence status; or hospital documentation confirming compulsory MHA detention; or Home Office immigration detention documentation.
Class E (in care home): Care home or hospital admission letter confirming the person's name, admission date, and the nature of the personal care provided; GP letter if requested; evidence that the property was the person's main residence before admission.
Class F (deceased estate): Certified copy of the grant of probate or letters of administration; death certificate.
Class G (occupation prohibited by law): A copy of the prohibition order, closing order, planning enforcement notice, or other formal legal document imposing the prohibition.
Class L (mortgagee in possession): Court possession order; confirmation from the mortgagee or their receivers that possession has been taken; evidence that the property is empty.
Class N (all-student household): Council Tax Exemption Certificate from the educational institution for each adult resident.
Class U (all SMI residents): Medical certificate from GP or specialist confirming severe and apparently permanent mental impairment; qualifying benefit award letter (AA, PIP daily living, DLA, ESA support component, or UC LCWRA).
Step 4: Submit the Application
Complete the online form or submit the paper form with all required evidence. Keep copies of everything you submit.
The council's revenues team will:
1. Acknowledge receipt of your application (typically within 5-10 working days)
2. Review the evidence
3. Make a decision (typically within 14-28 working days of receipt of a complete application)
4. Issue a revised demand notice showing zero charge if the exemption is approved
If additional evidence is needed, the council will contact you by email or letter. Respond promptly - processing pauses while the council waits for requested evidence.
Backdating: Claiming from the Qualifying Date
Exemptions do not start from the date of application - they start from the date the qualifying conditions were first met. If you apply late, request backdating:
How to request backdating: In the additional information section of the application form, state: "I am requesting that this exemption be backdated to [date the qualifying condition was first met], which is [explanation - e.g., 'the date the property became empty after my mother entered the care home on...']."
Provide evidence of the qualifying date (care home admission letter showing the admission date, grant of probate date, student course start date, etc.).
Most exemption Classes can be backdated indefinitely where evidence supports the earlier date. The billing council calculates the overpayment from the backdated date and issues a refund or credit.
What Happens When the Exemption Ends
You must notify the billing council within 21 days when the qualifying circumstances change and the exemption ends. Examples:
- Class E: the person in care returns home, or dies (notify - Class F may then begin)
- Class F: a beneficiary moves into the property, or the property is sold
- Class N: a non-student adult moves into the student household, or a student's course ends
- Class U: an SMI person's qualifying benefit ends or their medical status changes
Under the Council Tax (Administration and Enforcement) Regulations 1992, failure to notify within 21 days can result in a civil penalty.
Common Mistakes to Avoid
When applying for Council Tax exemptions, several common errors cause delays or refusals:
Applying for the wrong Class: For example, applying for Class N (all-student household) when the household includes a non-student adult. The non-student makes Class N inapplicable - the student is disregarded but the non-student pays. Check the eligibility conditions carefully before applying.
Applying for the right Class but providing the wrong evidence: For example, applying for Class F with only the death certificate, without the grant of probate. Class F starts from the grant of probate, not the death. The death certificate is useful context, but the grant is the key document.
Not requesting backdating: Many applicants apply successfully but fail to request backdating to the qualifying date. The exemption applies from when you applied, not from when it qualified, unless you explicitly request backdating with evidence of the earlier qualifying date.
Failing to notify when the exemption ends: Forgetting to notify the billing council when circumstances change (for example, when a Class E patient dies or when a Class N student household gains a non-student adult) can result in the exemption continuing incorrectly, followed by retrospective billing and potential penalties.
The Appeal Route If Exemption Is Refused
If the billing council refuses your exemption application:
1. Request an internal review by a senior officer not involved in the original decision. Provide additional evidence if available.
2. If the internal review fails, appeal to the Valuation Tribunal for England (VTE) in England (or equivalent in Wales or Scotland).
3. The tribunal considers whether the statutory criteria for the claimed Class are met. Tribunal hearings are free.
Frequently Asked Questions
How long does the Council Tax exemption application take?
Most billing councils process straightforward exemption applications within 14 to 28 working days of receiving a complete application with all required evidence. Complex cases (contentious probate, disputed charity status) may take longer. Simple cases (Class N with student certificates) may be processed in 5 to 10 working days.
My council doesn't have an online form - how do I apply?
Contact the revenues team by phone or email. Explain your situation and the Class you believe applies. The council should be able to process your application by phone or post a paper form. All councils must offer alternative application routes under the Equality Act 2010 for people who cannot access digital services.
I was exempt under Class E last year - do I need to renew the application?
Most billing councils apply Class E on a continuous basis without annual renewal, recognising that care home placement is typically long-term. Some councils do request annual confirmation that the situation has not changed. You should receive a letter from the council if they require confirmation. If you are not sure, contact the revenues team to check the status of your account.
Can I apply for a Council Tax exemption and Council Tax Reduction at the same time?
Yes, but they address different situations. An exemption gives 100% relief (zero Council Tax). Council Tax Reduction is means-tested and applies to reduce a bill that is not fully exempted. If your property qualifies for a full exemption (Class N, Class U, etc.), CTR is irrelevant during the exemption period because there is no bill to reduce. If the exemption ends, apply for CTR at the same time as registering the end of the exemption.
The council says my Class F exemption has run out - what happens now?
After 6 months from the grant of probate, Class F ends. Full Council Tax resumes from day 7. The billing council will issue a new demand notice. If the property remains empty, standard empty property rules apply (the billing council may charge the full rate or a long-term empty premium after the relevant vacancy period). If you are the executor and the estate is still being administered, contact the revenues team to explain the situation and ask about their policy during active estate administration.
How we verified this
The Council Tax exemption Classes are from the Council Tax (Exempt Dwellings) Order 1992. The application notification duty (21 days) is from the Council Tax (Administration and Enforcement) Regulations 1992. The appeal route through the Valuation Tribunal is from the Council Tax (Alteration of Lists and Appeals) (England) Regulations 2009. Equality Act 2010 accessibility requirements apply to all public authority digital services. MHCLG guidance covers exemption application processing standards. The IRRV provides professional guidance to billing councils on exemption evidence requirements.
Sources & Verification
- Council Tax (Exempt Dwellings) Order 1992: https://www.legislation.gov.uk/uksi/1992/558/contents
- Council Tax (Administration and Enforcement) Regulations 1992: https://www.legislation.gov.uk/uksi/1992/613/contents
- Local Government Finance Act 1992: https://www.legislation.gov.uk/ukpga/1992/14/contents
- gov.uk Council Tax exemptions: https://www.gov.uk/council-tax/who-doesnt-pay
- 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.
