Business Rates for Holiday Lets in Wales: How to Apply, Step by Step (2026)
Last week one of the owners we work with emailed me a short, very reasonable question: "I think we now meet the requirements for business rates — can we get it started, and what do you need from me?"
He was right. His three-bedroom Cardiff apartment had cleared both of the Welsh thresholds with room to spare, and moving from council tax to business rates was now on the table. What surprised me, putting the application together, is how little practical guidance there is on doing it — most of what you'll find explains the rule and stops there. So here is exactly how we prepared it, what the Valuation Office actually asks for, what changed in April 2026, and what the current consultation could change next year.
The short answer
To move a holiday let in Wales from council tax to business rates, you need to show the Valuation Office that it was available to let for at least 252 days and actually let for at least 182 days in the previous 12 months — and that it will be available for at least 252 days in the next 12. You apply with a short PDF form, one per property, emailed to the Valuation Office with your evidence.
If you want the background on why the 182-day rule exists in the first place, we covered that in our earlier guide to the 182-day rule. This post is the practical next step.
The holiday let business rates test in Wales, in plain English
All of these have to be true at the same time:
Available 252 days or more in the last 12 months, for short stays, on a commercial basis.
Actually let 182 days or more in that same 12 months.
Available 252 days or more in the coming 12 months.
You have the right to let it that way (your lease or title allows it).
The detail is where owners trip up. Only stays of 28 nights or fewer count towards the 182 — a long contractor booking or a placement student does not. Lets have to be genuinely commercial, so free or discounted stays for friends and family don't count, and neither do your own nights in the property. Days are counted at midnight, so a Friday-to-Sunday stay is two days, not three. And pricing far above the market can itself suggest a property isn't really being offered commercially.
What changed on 1 April 2026
The Welsh Government made two refinements that took effect this spring, and both make the test a little kinder to genuine operators:
Averaging. If a property narrowly misses 182 days in the latest year, the average across the previous two or three years can be used instead.
Charity stays. Up to 14 days a year of free stays given to the beneficiaries of a registered charity can count towards the 182.
Official guidance also allows the days to be averaged across several self-catering units at the same or a very nearby location — useful if you own more than one flat in a building.
How we prepared the application, step by step
Pull twelve months of nights from the booking system. We separated nights let, nights available and nights that were neither (owner stays and blocks). Owner nights come out of both totals — they are not commercial lets, and they are not availability either.
Check every channel, not just the main export. This was our most useful lesson. A handful of nights booked through one channel sat in the calendar but not in the standard reservations export. Missing them would have understated the lets — so we reconciled the calendar night by night against the bookings.
Find the dates each threshold was crossed. The form asks when the property reached 252 days available and 182 days let. Rating normally runs from the later of those two dates, so it is worth being precise.
Gather what the form asks for. Every advertising channel with its full listing URL, the highest and lowest weekly charges, the number of bed spaces, the current council tax band, and any other self-catering units at or near the same address.
The owner completes and signs the form. The ratepayer makes the declaration, so we prepare the figures and the evidence pack, and the owner signs and sends it. There is one form per property.
Email it to the Valuation Office. Send the form to selfcatering@voa.gov.uk with the subject line "Self-catering application – Wales", attaching the evidence. Copy your manager in so they can answer any follow-up questions about bookings.
For our owner, the numbers looked like this:
Twelve months to 30 September 2026 | Result |
Nights available to let (minimum 252) | 301 |
Nights actually let, stays of 28 nights or fewer (minimum 182) | 218 |
Non-commercial nights excluded from both totals (owner and other free stays) | 12 |
Both thresholds crossed | August 2026 |
Notice that the property was only launched with us in late 2025. A well-run listing can clear the bar well inside its first year — but only if the calendar is kept open and the owner's own use is kept modest.
What it could save
This is the part owners care about most, and it deserves a careful answer rather than a headline number.
In Cardiff, a furnished property that is nobody's main home is treated as a second home for council tax and currently carries a 100% premium — in other words, double the normal bill. Business rates have no second-home premium. On top of that, Small Business Rates Relief in Wales gives 100% relief where the rateable value is £6,000 or less, tapering to nothing at £12,000. For many single holiday lets, that can bring the bill down dramatically, sometimes to zero.
Three honest caveats. The rateable value is set by the Valuation Office after it accepts the property, so nobody can promise the final figure in advance. The relief is limited to two properties per business in each council area. And the 40% retail, leisure and hospitality relief that holiday lets enjoyed in 2025-26 ended on 31 March 2026; this year's replacement scheme excludes self-catering.
Keeping it — the bit people forget
Business rates status is not a one-off achievement. The Valuation Office runs a rolling programme of checks and aims to review each self-catering property at least once every two years. It may send a form called VO6048 asking for your letting information, and that must be returned within 56 days or a £100 penalty applies.
If a property stops meeting the criteria, it moves back to council tax — and that can be backdated, with any second-home premium on top. If your circumstances change, tell the Valuation Office rather than waiting to be found. One piece of good news: from 1 April 2027 a new exception gives a property that moves from business rates back to council tax a year's grace from the premium.
The 2026 consultation: what might change next
The Welsh Government is consulting on the classification of self-catering properties until 23 October 2026, with any changes intended to apply from 1 April 2027. It is worth knowing what is — and isn't — on the table:
No new number has been proposed. The Government says it may consider a modest reduction after a review due to finish by the end of 2026, but warns that cutting the threshold by more than about four weeks could undermine its aims.
Five possible exemptions for properties that could never really be someone's permanent home — for example units that are an integral part of another business on the same site, groups of five or more units assessed together, units with a planning restriction preventing permanent occupation, units on the same title as the owner's own home, and units run by the owner of adjoining farmland.
The 252-day availability test stays.
If you have a view, the consultation page on GOV.WALES explains how to respond.
Common mistakes we see
Counting long stays of more than 28 nights towards the 182.
Forgetting to take the owner's own nights out of both totals.
Relying on one booking export and missing nights taken through another channel.
Blocking the calendar for long stretches, then falling short on availability.
Assuming the council decides — it is the Valuation Office.
Treating approval as permanent and ignoring a VO6048 when it arrives.
Confusing this with the new visitor accommodation register, which is a separate obligation with its own deadline.
Frequently asked questions
Who decides whether my holiday let pays business rates or council tax?
The Valuation Office decides, not the council. Since April 2026 it has been part of HMRC, but the self-catering application process is unchanged. Once the property is listed for business rates, the council sends the bill and applies any relief.
Can I apply myself?
Yes. The owner or ratepayer completes and signs the form. A good manager will prepare the letting figures and evidence for you, but the declaration is yours.
Do long stays count towards the 182 days?
No. Only lets of 28 nights or fewer count towards the 182. A longer stay can still count towards availability if the property was genuinely bookable for shorter stays at the time.
Do my own stays in the property count?
No. Your own use, and free or discounted stays for friends and family, are not commercial lets. They also reduce the nights the property was available.
How long does the Valuation Office take?
It doesn't publish a timescale. Rating normally runs from the date both thresholds were met, so a delay in processing shouldn't cost you the earlier start date.
Is this the same as registering with the Welsh Revenue Authority?
No. The new visitor accommodation register is a separate, free requirement for providers in Wales, with a deadline of 31 March 2027. You need to do both. We explain registration in our guide to the Wales visitor accommodation register.
How we help
For our owners, this is part of the job: we keep the letting records, reconcile every channel, and prepare the evidence so the application takes minutes rather than evenings. If you own a holiday let in Cardiff, Newport or anywhere in South Wales and you'd like to know whether it qualifies for business rates, send us the address and we'll take a look.
This article is general guidance based on the rules in force on 2 October 2026. It is not tax or legal advice; the Valuation Office makes the final decision on every application, and you should confirm reliefs with your council.
Sources
Business Wales – Non-domestic rates for self-catering properties
GOV.UK – Apply for business rates for a self-catering property in Wales
GOV.UK – Application form for self-catering properties (Wales)
The Non-Domestic Rating (Amendment of Definition of Domestic Property) (Wales) Order 2026
GOV.WALES – Classification of self-catering properties for local tax purposes (consultation)
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