Part of: UK Council Tax 2026 — Complete Guide to Bands, Discounts, Exemptions & Appeals → Council Tax Exemptions — Every Class A to W Explained 2026
TL;DR: Class L Council Tax exemption applies to properties that are in the legal possession of a mortgagee (typically a bank or building society) following repossession. The exemption lasts for as long as the mortgagee holds the property in possession pending sale. There is no time limit. The exemption ends when the property is sold and the new owner takes possession.
Last reviewed: 27 April 2026
The Legal Basis for Class L
Class L of the Council Tax (Exempt Dwellings) Order 1992 provides a Council Tax exemption for dwellings that are in the possession of a mortgagee following the exercise of a power to take possession, where the property is unoccupied.
The exemption recognises that a mortgagee (lender) that has repossessed a property pending sale is in a fundamentally different position from a property owner choosing to leave a home empty. The mortgagee has taken possession involuntarily in order to recover a debt, and its possession is temporary and transitional.
The Local Government Finance Act 1992 provides the enabling power. The Land Registration Act 2002 governs the registration of charges and the mortgagee's legal position.
How Mortgage Repossession Works
Understanding the repossession process helps clarify when Class L applies:
Stage 1 - Mortgage arrears accumulate: The borrower falls into mortgage arrears. The lender follows the Pre-Action Protocol for Possession Claims before bringing court proceedings.
Stage 2 - Court possession order: The lender obtains a possession order from the county court. This gives them the right to take possession of the property from a specified date.
Stage 3 - Mortgagee takes possession: The borrower is evicted. The lender (or their receivers or agents) enters the property and takes control. At this point, the mortgagee is "in possession."
Stage 4 - Property listed for sale: The mortgagee instructs estate agents or auctioneers to sell the property to recover the outstanding mortgage debt and costs.
Stage 5 - Sale completion: The sale completes. Class L ends. The new owner's Council Tax liability begins from completion.
Class L applies from the date the mortgagee takes possession (Stage 3) until the sale completes (Step 5). During this period, the property is empty (the evicted borrower has left) and in the hands of the lender.
What "In Possession" Means
The legal concept of a mortgagee "in possession" is more specific than simply holding security over a property. A mortgagee is in possession when it has:
Exercised its right to possession: By obtaining and implementing a court possession order, or by peaceful re-entry where the borrower vacates without court proceedings.
Taken actual control of the property: Typically by changing the locks, instructing receivers or agents to manage the property, and taking responsibility for the physical security and condition.
A mortgage lender that holds a charge (mortgage) over a property but has not yet obtained or exercised possession rights is NOT in possession. A charge-holder is different from a mortgagee-in-possession. Class L applies only when possession has been taken.
Evidence Councils Typically Request
Court possession order: A copy of the county court possession order confirming the date from which the mortgagee is entitled to take possession.
Confirmation of mortgagee identity: The name and address of the mortgagee institution (bank, building society, specialist lender) and confirmation that they are exercising the possession order rather than a third party.
Evidence of actual possession: Some councils require confirmation that possession has actually been taken (locks changed, property secured) rather than merely a possession order existing. A letter from the mortgagee's Law of Property Act receivers or their appointed agents can provide this.
Duration: Unlimited While in Possession
Class L has no time limit. It continues for as long as the mortgagee holds the property in possession. In straightforward repossessions, this is typically a period of a few months to a year while the property is listed and sold.
In complex cases - where the property has significant negative equity, is in poor condition, or is difficult to sell - the mortgagee-in-possession period can extend for several years. Class L continues throughout.
The exemption ends automatically when:
- The sale completes and a new owner takes legal title
- The property is transferred to the borrower (debt cleared, possession surrendered)
- The mortgagee is replaced by a receiver under different authority
The Mortgage Repossession Process: Timeline and Class L Interaction
Understanding when Class L begins and ends requires understanding the repossession timeline:
Typical residential repossession timeline:
1. Mortgage arrears accumulate over 3 to 12+ months
2. Lender issues arrears notices and tries to agree repayment
3. Lender applies to court for possession order (typically after 3+ months of arrears and failed resolution)
4. Court hearing: possession order granted (suspended or outright)
5. Borrower either leaves voluntarily or is evicted on the warrant of possession
6. Mortgagee takes possession: changes locks, secures property, appoints receivers or agents
7. Property is listed for sale (estate agents, auction)
8. Sale agreed
9. Completion: title transfers to buyer
Class L begins: At Step 6 - when the mortgagee actually takes possession and the property is empty.
Class L ends: At Step 9 - when completion occurs and the title transfers to the buyer.
Between Steps 5 and 6: If the borrower has left voluntarily but the mortgagee has not yet formally taken possession, the position is less clear. The billing council should be contacted to clarify the position.
The Role of Law of Property Act (LPA) Receivers
In many commercial and buy-to-let repossessions, the mortgagee does not take personal possession but instead appoints a Law of Property Act (LPA) receiver under the Law of Property Act 1925. The LPA receiver steps into the shoes of the mortgagee for certain purposes.
Where an LPA receiver is appointed and the property is subsequently emptied (tenants' tenancies ended), Class L should still apply - the receiver acts as agent of the mortgagee, and the property is effectively in the mortgagee's possession through the receiver.
The billing council should be notified of the LPA receiver appointment and provided with the receiver's appointment letter as evidence. The IRRV provides professional guidance to billing councils on LPA receiver scenarios.
Buy-to-Let Repossessions and Class L
A significant proportion of mortgage repossessions involve buy-to-let properties rather than owner-occupier homes. The process and Class L implications are broadly the same, but with an additional complication:
Existing tenancies: A buy-to-let property may have existing tenants when the mortgagee takes possession. The tenant's right to remain in the property during the possession process depends on the type of tenancy and whether it predates the mortgage. If the tenancy is extinguished by the possession proceedings and the tenants vacate, the property becomes empty and Class L applies.
If tenants remain: Class L applies only while the property is empty. If tenants remain in occupation following the mortgagee taking possession (which can happen in some complex buy-to-let possession cases), Council Tax is the tenants' responsibility during their occupation.
Class L and the Buyer's Perspective
When a buyer purchases a repossessed property (either through an estate agent, auction, or directly from the mortgagee's receiver):
Before exchange: The property is under Class L. The mortgagee-in-possession pays no Council Tax.
On completion: Class L ends. The new owner becomes the liable person from the completion date. Any empty property discount or premium that may apply to the new owner is determined by their circumstances (do they have another main residence, is the property furnished or unfurnished, etc.).
No Class L for buyers: A buyer of a repossessed property does not inherit Class L status. Class L is specific to the mortgagee-in-possession. Once the sale is complete, the mortgagee's possession ends and Class L ends with it.
Buyers of repossessed properties should budget for Council Tax from completion and register with the billing council promptly.
The Rare Case: Crown Lender Receivers
Where a debt to HMRC (rather than a commercial mortgage lender) leads to HMRC appointing a Law of Property Act receiver or taking enforcement action over a property, the position is governed by different rules. HMRC's powers derive from tax legislation rather than mortgage law. Confirm with the billing council whether Class L applies in HMRC receivership scenarios.
Property Auction Scenario
Properties sold at auction (either directly by the mortgagee-in-possession or through a specialist distressed property auction) follow the same pattern:
- Mortgagee-in-possession period: Class L applies.
- Auction exchange: The auction exchange creates a binding contract. The legal transfer of possession occurs at completion (typically 28 days after auction).
- Post-completion: New owner's Council Tax liability begins from completion date.
During the period between auction exchange and completion, the mortgagee is still technically in possession (though the property is sold subject to contract). Class L continues until completion.
Frequently Asked Questions
I'm the original borrower and the bank has just obtained a possession order - do I still have to pay Council Tax until I leave?
Yes. Until the mortgagee actually takes possession (changes the locks, takes control of the property), you are still in possession as the borrower and remain the liable person for Council Tax. Once the mortgagee takes possession and you have vacated, Class L begins and the mortgagee becomes the effective liable party.
I'm buying a repossessed property at auction - how quickly should I register for Council Tax?
Register with the billing council on your completion date. Your Council Tax liability begins from completion, even if you have not yet moved in or the property needs renovation. Apply for any relevant exemption (Class A if the property is uninhabitable due to works required, or Class G if a prohibition order is in force) at the same time as registering. The billing council will note your account from completion and issue your first demand notice shortly after. Prompt registration avoids any gap between Class L ending (on the mortgagee's sale completion) and your own Council Tax registration.
The bank has been in possession for 3 years and hasn't sold the property - is Class L still in force?
Yes. Class L has no time limit. If the mortgagee is still in possession and the property is still empty, Class L continues regardless of how long the possession has lasted.
Can Class L apply to commercial mortgages on residential properties?
Yes. The nature of the mortgage (commercial or residential) does not determine Class L eligibility. What matters is whether the mortgagee has taken possession under the mortgage deed and the property is a residential dwelling that is now empty. A residential property used as security for a commercial mortgage qualifies for Class L when the commercial lender takes possession. Provide the billing council with the possession order, the lender's identification, and confirmation that the property is empty and that possession has been formally taken under the mortgage deed.
Does Class L affect how the property appears on the Land Registry?
Yes. When a mortgagee exercises its power of sale following repossession, the sale requires Land Registry registration. The Land Registry title for the property will show the charge exercise and the transfer to the new buyer at completion. MHCLG guidance notes that Land Registry data is one of the sources billing councils can use to identify when a mortgagee-in-possession sale has completed - which is the event that ends Class L and triggers the new owner's Council Tax liability. Billing councils may access Land Registry data through the Local Land Charges Register or through data-sharing agreements. The new buyer should also proactively notify the billing council of their purchase completion to ensure accurate Council Tax billing from completion day.
How we verified this
Class L eligibility is from the Council Tax (Exempt Dwellings) Order 1992. The mortgage repossession process (court possession order, mortgagee-in-possession) is from the Pre-Action Protocol for Possession Claims Based on Mortgage Arrears and the Land Registration Act 2002. MHCLG guidance covers Class L administration. The IRRV provides professional guidance on mortgagee-in-possession exemption evidence standards.
Sources & Verification
- Council Tax (Exempt Dwellings) Order 1992 (Class L): https://www.legislation.gov.uk/uksi/1992/558/contents
- Local Government Finance Act 1992: https://www.legislation.gov.uk/ukpga/1992/14/contents
- Land Registration Act 2002: https://www.legislation.gov.uk/ukpga/2002/9/contents
- Pre-Action Protocol for Possession Claims (mortgage arrears): https://www.justice.gov.uk/courts/procedure-rules/civil/protocol/prot_mha
- 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.
