How are my business rates calculated?

Business rates are payable by the occupiers of all non-domestic/business property, in the same way that council tax is a tax on domestic property.

Business rates are charged on most business properties such as shops, offices, pubs, warehouses and factories. However, the property doesn't have to be used for a business - if it is used for purposes which are not domestic it is likely to be rateable.

The Valuation Office Agency sets the rateable value of business premises by using property details such as rental information. We use the rateable value and the national non domestic rates multiplier (set by central government) to calculate your business rates bill.

What is the National Non Domestic Rating Multiplier?

This is the rate in the pound by which the rateable value is multiplied to give the annual rate bill for a property.

The multiplier set annually by the Welsh Ministers is the same for the whole of Wales. The multiplier for 2025/26 is 0.568.

From 1 April 2026, there are three multipliers which may apply to a property in Wales. The multipliers for 2026-27 are as follows:

• a retail multiplier of 0.350, applicable to small to medium sized retail shops with a rateable value below £51,000
• a standard multiplier of 0.502, applicable to most other properties
• a higher multiplier of 0.515, applicable to properties with a rateable value above £100,000

Guidance on the application of these multipliers is available on the Business Wales website.

Further Information

More information is available at www.gov.uk and businesswales.gov.wales