Council Tax Premiums on Second Homes in Wales: Up to 300% Explained
Welsh councils can charge up to a 300% council tax premium on second homes and long-term empty properties in 2026/27. Here's how the premium works, which councils use it, and the exemptions that can reduce or remove it.
Where the power to charge a premium comes from
Since powers introduced under the Local Government and Elections (Wales) Act 2021, Welsh billing authorities have been able to charge a council tax premium on second homes and long-term empty properties of up to 300% of the standard charge. That's a significant increase on the powers available before, and it means a property owner's total annual bill can, at the maximum rate, reach four times what an equivalent permanently-occupied home in the same band would pay.
It's important to be precise about what "300% premium" actually means in cash terms: the premium is a percentage added on top of the standard 100% liability, not a total charge of 300%. A property facing the maximum premium therefore pays 100% (standard charge) plus 300% (premium) = 400% of the standard bill in total.
Why premiums vary so much between councils
Wales has 22 unitary local authorities, and each sets its own second-home and long-term-empty premium rate within the statutory maximum as part of its annual budget process. There's no single "Welsh rate" — a council with a high concentration of second homes in tourist or coastal areas is more likely to have moved towards the 300% maximum, while other councils with fewer second homes proportionally may charge a lower premium, commonly around 100% (a straightforward doubling of the standard bill), or choose not to apply a premium in some categories at all.
Second homes vs long-term empty properties: two separate categories
The legislation enables premiums on two distinct categories of property, and councils can (and often do) set different rates for each:
| Category | Typical description | Premium can reach |
|---|---|---|
| Second home | Furnished property, not anyone's sole or main residence, used occasionally by the owner or let short-term | Up to 300% |
| Long-term empty property | Substantially unfurnished and unoccupied for an extended period (commonly a year or more) | Up to 300% |
A holiday cottage used a handful of weeks a year sits in the "second home" category. A property standing genuinely vacant during a lengthy renovation, or an inherited property not yet sold or let, is more likely to fall into the "long-term empty" category — and the applicable premium percentage, and available exemptions, can differ between the two even within the same council area.
Worked example: the cash difference between premium levels
Consider a Welsh coastal cottage with a standard annual council tax bill of £2,000 (its Band D-equivalent charge before any premium).
| Premium rate | Extra premium charge | Total annual bill |
|---|---|---|
| No premium (0%) | £0 | £2,000 |
| 50% premium | £1,000 | £3,000 |
| 100% premium | £2,000 | £4,000 |
| 300% premium (maximum) | £6,000 | £8,000 |
The gap between a council charging 100% and one charging the maximum 300% is substantial in cash terms — an extra £4,000 a year on this example property, purely as a result of which local authority the property sits in. Anyone comparing potential second-home purchases across different parts of Wales should treat the local premium rate as a genuine budgeting factor, not a footnote, and check
Council Tax Calculator
Look up council tax bands and estimate your annual council tax bill.
Open Council Tax calculatorExemptions that can reduce or remove the premium
Welsh councils are required to offer certain exemption categories, though the precise list, time limits and documentation requirements vary by billing authority. Commonly available exemptions include:
- Actively marketed for sale or letting — typically for a defined period (often up to a year), where the owner can demonstrate genuine, ongoing marketing.
- Job-related dwellings — where the second property is required for work reasons, such as living near a workplace during the week.
- Probate properties — a time-limited exemption while an estate is being administered after the owner's death.
- Annexes and connected dwellings — properties forming part of the grounds of, or annexed to, the main residence.
- Properties genuinely under renovation — some councils offer a time-limited exemption or reduction while substantial works are carried out to bring an empty property back into habitable use.
None of these exemptions apply automatically — the property owner generally needs to apply and provide evidence to their council, and eligibility criteria differ between authorities. If you believe a property genuinely qualifies for an exemption, contact the specific council directly rather than assuming the exemption applies by default.
Escaping council tax altogether: the business-rates route
A property genuinely operated as a furnished holiday let, and let out commercially for enough days in the year to clear the relevant letting-day threshold, may be assessed for business rates instead of council tax — a different system entirely, with its own reliefs (including small business rate relief in many cases). This route removes the property from the council tax premium question entirely, but only where the actual letting activity clears the threshold; simply advertising a property as available for holiday letting, without the letting activity to match, does not achieve this and leaves the property liable for council tax, premium included.
Practical steps if you own or are considering a Welsh second home
- Check the specific council's current published premium rate for both the "second home" and "long-term empty" categories, since they can differ.
- Confirm whether any exemption genuinely applies to your situation, and what evidence the council requires to apply it.
- If operating as a holiday let, check whether your actual letting activity clears the threshold for business-rates assessment instead of council tax.
- Budget the premium into ongoing running costs from the outset if purchasing — at the maximum 300% rate it's a material annual cost, not a rounding error.
- Review the premium rate annually, since councils can and do change it as part of their yearly budget-setting.
Frequently asked questions
What is the maximum council tax premium a Welsh council can charge on a second home?
Under powers in the Local Government and Elections (Wales) Act 2021, Welsh billing authorities can charge a premium of up to 300% of the standard council tax charge on second homes and long-term empty properties, meaning the total bill can reach up to four times the standard Band D-equivalent charge for that property once the premium is added on top of the ordinary 100% liability. This is a maximum, not a mandatory rate — each of the 22 Welsh councils sets its own premium level within that ceiling, and several charge less than the full 300%.
Do all councils in Wales charge the full 300% premium?
No. Premium levels vary significantly by council. Some Welsh authorities charge a lower premium — commonly around 100% (doubling the standard bill) — while others in areas with a high concentration of second homes, particularly parts of north and west Wales and Pembrokeshire, have moved to or towards the maximum 300% premium. Each council reviews and sets its premium annually as part of its budget-setting process, so the rate that applied last year isn't guaranteed to be the rate that applies this year — always check your specific council's current premium rather than assuming a figure from a previous tax year.
What's the difference between the second-homes premium and the long-term empty property premium?
Both are enabled by the same Welsh legislation and both can reach up to 300%, but they apply to different situations. The second-homes premium applies to furnished properties that aren't anyone's sole or main residence — typically a holiday home used occasionally by the owner or let out short-term. The long-term empty property premium applies to properties that have been unoccupied and substantially unfurnished for an extended period, usually a year or more. A council can set different premium percentages for each category, so a property that's genuinely empty (rather than an occupied second home) may face a different premium rate under the same council.
Are there exemptions from the Welsh second-home council tax premium?
Yes. Welsh councils are required to offer certain exemption classes, and commonly include exceptions for properties actively marketed for sale or letting (usually for a limited period, such as up to a year), job-related dwellings where the occupier needs a second property for work reasons, properties undergoing probate administration for a set period after the owner's death, and annexes or properties forming part of the main home's grounds. Some councils also offer time-limited exemptions for properties genuinely being renovated or brought back into use. Exact exemption categories and time limits vary by council, so check your specific billing authority's published exemption policy rather than assuming a blanket rule applies everywhere in Wales.
How is the premium calculated on top of my Band D council tax bill?
The premium is a percentage added on top of the standard 100% council tax liability for the property's band, not a replacement rate. For example, a property with a standard annual council tax bill of £2,000 facing a 100% premium pays an extra £2,000 (total £4,000), while the same property facing the maximum 300% premium pays an extra £6,000 on top of the standard bill (total £8,000) — four times the standard charge. The premium percentage applies uniformly to the property's own council tax band, so higher-band properties see a larger cash premium even at the same percentage rate.
Does self-catering or holiday-let use change how the premium applies?
It can. Properties genuinely operated as a business — for example furnished holiday lets that meet certain letting-day thresholds and are registered for business rates rather than council tax — fall outside the council tax system entirely and are assessed for non-domestic (business) rates instead, which is a separate regime with its own reliefs. A property that doesn't meet the letting-day threshold to qualify for business rates assessment remains liable for council tax, including any applicable second-homes premium, so simply advertising a property for holiday letting doesn't automatically avoid the premium unless the actual letting activity clears the relevant threshold.
Why have Welsh councils introduced these premiums?
The stated aim, set out when the Welsh Government extended these powers, is to address the impact of high second-home concentrations on housing affordability and availability in some communities, particularly in popular tourist and coastal areas where a significant share of housing stock is used as holiday accommodation rather than permanent homes. The premium income raised is retained by the local council and can be used to support local services and housing initiatives, though how each council allocates that revenue is a local decision made through its own budget process.
Can I appeal or challenge a council tax premium charge?
You can challenge the property's classification (for example, arguing it's actually your sole or main residence rather than a second home, or that it qualifies for a specific exemption) through your council's standard council tax dispute process, and ultimately to the Valuation Tribunal for Wales if unresolved. You generally cannot successfully argue against the premium rate itself if your council has properly set it within its legal powers — challenges that succeed are almost always about factual classification or exemption eligibility, not about disputing a council's right to charge up to 300%.
How do I find out my specific council's current premium rate?
Each Welsh council publishes its current council tax premium rates as part of its annual budget-setting documentation, usually alongside its standard council tax charges for the year, on its website. Because premium rates are reviewed and can change annually, and because Wales has 22 separate billing authorities each setting their own rate within the 300% ceiling, there's no single national figure to quote — always check the specific council's current published rate for the property in question rather than relying on a rate reported for a previous year or a different council.
Does the premium affect mortgage affordability or remortgaging on a second home?
Indirectly, yes — lenders assessing affordability for a second-home or buy-to-let mortgage will typically factor in the full annual running costs of the property, and a substantial council tax premium can materially increase those costs compared with an equivalent primary residence. Anyone considering purchasing a Welsh second home, or remortgaging an existing one, should build the applicable premium into their running-cost budget from the outset rather than treating it as a minor add-on, since at the maximum 300% rate it can represent a genuinely significant recurring annual cost.
Related reading
Second Homes in Anglesey and Snowdonia: Council Tax Premiums Explained 2026/27
Why Anglesey and Eryri/Snowdonia councils charge some of the highest second-home Council Tax premiums in Wales, and how the premium interacts with holiday-let business rates in 2026/27.
Wales Second-Home Council Tax Premium: Which Towns Charge the Most in 2026/27
Welsh councils can charge up to 300% Council Tax premium on second homes. How the premium is set, which areas apply it hardest, and how to check before you buy in 2026/27.
Property Guardian Schemes: Council Tax and Tenancy Rights in 2026/27
Property guardians live in empty commercial or residential buildings at low cost, but their legal status is often a licence, not a tenancy. How Council Tax liability and rights actually work in 2026/27.