The rule

The 182 night rule for Welsh holiday lets

A self-catering let in Wales has to be let for 182 nights a year to stay on business rates. This is what the rule says, what changed in 2026, and what happens if you fall short.

Correct as of 2026-11-11.

The three tests

To be classified as a non-domestic property, and so liable for business rates rather than council tax, your property has to meet all three of these tests over the same 12-month period:

• Available for at least 252 nights, commercially, with the intention of making a profit.
• Actually let for at least 182 nights, commercially, in that same 12 months.
• Intended to be available for at least 252 nights in the following 12 months.

The Valuation Office Agency is responsible for assessing whether you meet the criteria and for classifying the property. If it stops meeting them, your property can be moved from business rates to council tax.

What counts as a night

Both the 182 and the 252 tests only count stays of 28 nights or less. A longer stay does not count towards the 182, though it can count towards the 252 if the property could have been booked for 28 nights or less.

A night does not count if the property was closed for repair or refurbishment, if the site was closed, if you were using it privately (including letting it to friends or family at a discounted rate), or if it is a booking that has not happened yet.

Our guide to counting your nights covers this in detail, including the nights that catch people out.

What changed on 1 April 2026

Two refinements came into force on 1 April 2026. Both make the test easier to pass after a bad year rather than changing the headline thresholds, which stay at 182 and 252.

You can average over two or three years

If you fall short of 182 nights in the last 12 months, you may still meet the criteria by taking the average of the nights you let over the previous 24 or 36 months. The average must be at least 182 nights let in each 12-month period.

This is the provision that catches people out. A property let for 170 nights every year fails on any single year, but passes comfortably on a two-year average of 170. A property that let for 250 nights two years ago and 100 last year does not.

Up to 14 charity nights count

From 1 April 2026 you can include up to 14 nights a year where you have donated the use of the property to a registered charity. Nights donated before 1 April 2026 do not count towards the 14.

nos gives guidance, not tax advice. Only the Valuation Office Agency decides how a property is classified. Check anything that matters against the official guidance linked below.

If you fall short

You can be moved from business rates to council tax. Council tax is usually cheaper for a property you let for part of the year, but in many Welsh council areas a second home or long term empty property premium can be added on top of the standard bill, and that is where the real cost lands. The premium varies by council and can run as high as 300%.

The Welsh Government has said it will legislate for an exception to the premium, applied consistently across Wales, with a stepped transition to council tax intended to begin from 1 April 2027. That is a future change to the penalty, not a change to the 182 threshold. See what the consultation said.

Each council decides for itself whether to apply a premium and at what rate, so the figure you face depends on where your property is.

How to apply

The Valuation Office Agency can write to you at any time to ask whether a property is being run as a business. When the letter lands you have 56 days to return the form.

Fill in the form at GOV.UK, one form per eligible property, and email it to the Valuation Office Agency. If you are averaging your nights let across multiple years or multiple properties, say so in the "further information or remarks" section.

Sources

• GOV.UK — Apply for business rates for a self-catering property in Wales
• Business Wales — Non-Domestic Rates for Self-Catering Properties in Wales
• Swansea Council — Self-catering properties: Council Tax or business rates

Common questions

What is the 182 night rule in Wales?

A self-catering holiday let in Wales stays on business rates if it was available to let commercially for at least 252 nights and actually let commercially for at least 182 nights within the same 12-month period. You must also intend to make it available for at least 252 nights in the following 12 months. Fall short and the Valuation Office Agency can move it onto council tax.

How many nights do I need to let a Welsh holiday let?

At least 182 nights in any 12-month period, at stays of 28 nights or less. If you fall short, from 1 April 2026 you can still pass by averaging your nights let over the previous 24 or 36 months, as long as the average is at least 182 nights in each 12-month period.

What happens if I fall short of 182 nights?

The Valuation Office Agency can reclassify the property from business rates to council tax. In many Welsh council areas a second home or long-term empty property premium can then apply on top of the standard council tax bill.

Do charity nights count towards the 182?

From 1 April 2026, up to 14 nights a year count towards the 182 where you have donated the use of the property to a registered charity. Nights donated before 1 April 2026 do not count.

Can I average across more than one property?

If you own multiple self-catering holiday lets in the same location or very near each other, you can use the average number of nights let across those properties. Tell the Valuation Office Agency in the remarks section of the form when you apply.