The multiplier is the rate in the pound by which the rateable value is multiplied to produce the annual rate bill for a property.
It is set annually by the National Assembly for Wales and except in a revaluation year cannot by law rise by more than the amount of the increase in the Retail Price Index.
| Financial Year | Multiplier (pence in the pound) |
| 2013-14 | 46.4p |
| 2012-13 | 45.2p |
| 2011-12 | 42.8p |
| 2010-11 | 40.9p |
| 2009-10 | 48.9p |
| 2008-09 | 46.6p |
| 2007-08 | 44.8p |
| 2006-07 | 43.2p |
| 2005-06 | 42.1p |
| 2004-05 | 45.2p |
| 2003-04 | 44.0p |
| 2002-03 | 43.3p |
| 2001-02 | 42.6p |
| 2000-01 | 41.2p |