The formula for calculating your bill is set by the Government.
The Council works out the bill by multiplying the rateable value of the property by the appropriate multiplier for the financial year.
From 1 April 2026, there are three multipliers which may apply to a property in Wales. The multipliers announced 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; and
- a higher multiplier of 0.515, applicable to properties with a rateable value above £100,000.
After gross liability is calculated by combining the rateable value and the relevant multiplier, it may be reduced as a result of relief.
Calculation example
A small to medium sized retail shop with a RV of £15,000 will have a rates bill of £5,250 for the full financial year, i.e. £15,000 multiplied by 0.350.
There are a number of relief schemes in place which may reduce the amount of business rates that you pay. View these schemes here.