Second Homes Council Tax Premium 2026: Which Councils Charge Double + How Landlords Stay Exempt

The second home council tax premium has gone from a niche worry for holiday-let owners to a mainstream landlord problem. From 1 April 2025, English councils gained the power to charge a 100% premium — effectively doubling the bill — on any furnished dwelling that is no one's sole or main residence. According to Hamptons' December 2025 release, 211 of the 296 English billing authorities switched the premium on in 2025, with a further 38 confirmed for April 2026. That is roughly 84% of England charging double council tax on second homes by the time this tax year ends.

For landlords, this matters far more than the headlines suggest. The premium does not just hit holiday cottages in Cornwall. It hits any furnished flat sitting empty between tenancies, any inherited property still going through probate, and any refurbishment project where the kitchen has not yet been ripped out. The trigger is the council's "snapshot" on the billing date — and if your property is furnished and unoccupied at that moment, the premium applies from day one. There is no grace period built into the legislation.

This guide explains exactly which councils have adopted the premium, the nine statutory exception classes (E to M) that protect compliant landlords, and the practical steps you can take during void periods, refurbishments and probate to avoid paying twice. We will also cover the sharper Welsh and Scottish regimes, where premiums of 200%, 300% and even 500% are now in play. For the wider picture, see our Council Tax for Landlords hub guide.

What the second homes council tax premium actually is

The legal basis is the Levelling-up and Regeneration Act 2023, which amended section 11C of the Local Government Finance Act 1992, plus the Council Tax (Prescribed Classes of Dwellings) (England) Regulations 2024. Together they allow a billing authority to charge a premium of up to 100% on any dwelling that is "substantially furnished" and is no one's sole or main residence. In other words: a second home in the council tax sense, regardless of whether you ever holiday there.

Two features make this different from the older long-term empty premium. First, occupancy is irrelevant — a furnished property that nobody lives in as a main residence qualifies, even if you stayed there last weekend. Second, councils must announce adoption at least one year before it takes effect. So premiums going live in April 2026 had to be on council agendas before April 2025, which is why the rollout has been so predictable.

Which councils charge the premium in 2026

Hamptons' December 2025 analysis remains the most comprehensive list. The 211 councils that adopted in 2025 cluster in coastal and rural areas — North Norfolk, North Yorkshire, Cornwall, the Lake District authorities — but also include London boroughs such as Westminster and Kensington & Chelsea. The 38 joining in April 2026 fill in the remaining gaps, including several Home Counties authorities. By April 2026 only around 47 of 296 English billing authorities will not be charging the premium, mainly in the Midlands and parts of the North East.

Below is a representative sample of named adopters and their effective dates. Always confirm with your billing authority — the GOV.UK premium guidance points landlords to council websites for the definitive position, and rates can change with each annual budget cycle.

For landlords running tenancies that turn over each summer, check our Council Tax Between Tenancies guide alongside this one — the premium changes the void-period maths significantly.

The statutory exception classes E–M

The 2024 Regulations carved out nine classes of dwelling that cannot be charged the premium even if the council has otherwise adopted it. Most apply for 12 months from the trigger event. These are the landlord's primary defence.

Class H is the workhorse for buy-to-let landlords. It gives you 12 months from the day a property becomes a furnished void, provided you can show genuine marketing for let — instructed agent, online listing, reasonable rent. Crucially it is reusable: once you let the property for a continuous six months, the 12-month clock resets. We cover the evidence requirements in detail in our Empty Homes Premium: Class H Marketed for Let piece.

How to avoid the premium during a void

Most landlord premium liabilities arise in the gap between tenancies. A furnished flat empty for three months between ASTs is, on a strict reading of the legislation, a "second home" — and councils have made clear they will issue premium bills unless you have an exception lined up. There are four practical routes out.

1. Class H marketing-to-let — keep agent emails, listing screenshots and viewing logs as evidence. Aim for a reasonable rent; councils have refused Class H where the asking rent was clearly above market.
2. Class M refurbishment — commission a surveyor's report listing the works needed. Strip out the kitchen and bathroom before the snapshot date if possible, so the property is unambiguously uninhabitable.
3. Short-term let conversion — if the dwelling meets the Furnished Holiday Let business rates test (let 70 nights, available 140), it moves off council tax entirely onto non-domestic rates. Note the FHL income-tax regime was abolished on 6 April 2025, so the business-rates test is now the only relevant FHL question for council tax purposes.
4. Sell the property — Class G covers marketing for sale for 12 months from the date marketing begins.

For multi-let portfolios, the answer is increasingly to standardise the void process: surveyor on day one, marketing instruction on day one, evidence pack saved to the property file. Councils accept exception claims on paperwork, not assertion.

Welsh and Scottish divergence

England's 100% cap is generous compared to the rest of Great Britain. Welsh councils have been able to charge premiums up to 300% since April 2023 under GOV.WALES rules. Pembrokeshire, Gwynedd and Anglesey have all gone aggressive, with Gwynedd at 150% and Pembrokeshire at 200% for 2025-26. Welsh landlords also face the additional 182-day FHL threshold to escape onto business rates, which is materially tougher than the English 140-day equivalent.

Scotland makes its biggest move on 1 April 2026, when the 200% premium cap is removed entirely. According to the SPICe Scotland briefing, Midlothian has set a 500% premium, Highland is moving from 300% to 400%, and Edinburgh and Glasgow have both adopted 100%. For Scottish landlords, the planning of voids and refurbishments now needs to factor in eye-watering downside risk if exemptions are not properly evidenced.

The letting-between-tenants problem

This is where most landlords first discover the premium. You have a furnished two-bed flat in a council that has adopted the 100% premium. A tenancy ends on 31 March. The next tenant moves in on 30 June. For those three months the property is furnished and no one's main residence — textbook second home for premium purposes.

Class H protects you, but only if your evidence is in place before the snapshot date. Concretely: an instruction letter or email to your letting agent, a live listing on at least one portal, and viewing records. If you self-manage, screenshots of your own Rightmove or OpenRent listing work. Councils are not generally hostile — they are looking for a paper trail.

The HMO position is different again because each room may be a separate dwelling for council tax. We cover that in HMO Council Tax 2026.

Probate and Class I in practice

Class I gives 12 months of exception from the date of grant of representation. That is the date probate or letters of administration are issued, not the date of death. Executors managing a furnished property — typical when an elderly parent's home is inherited by a landlord child — get the full year to decide whether to sell, let or move in. If they then market for sale, Class G picks up; if they market to let, Class H does.

The trap is overrunning the 12 months. If probate was granted in March 2025 and the property is still furnished and empty in April 2026, the premium will hit unless another class is in play. Build the calendar reminder on day one.

How Latch helps landlords track premium risk