Editing Council Tax (section)

===Revaluation===
The government had planned to revalue all properties in England in 2007, which would have been the first revaluation since 1993, but in September 2005, it was announced that the revaluation in England would be postponed until "after the next election".<ref>{{cite news |url=http://news.bbc.co.uk/1/hi/uk_politics/4262590.stm |title=Council tax revaluing is shelved |date=20 September 2005 |url-status=live |archive-url=https://web.archive.org/web/20050925011142/http://news.bbc.co.uk/1/hi/uk_politics/4262590.stm |archive-date=25 September 2005 |work=BBC News}}</ref> At the same time, the terms of reference of the Lyons Inquiry were extended and the report date pushed out to December 2006 (subsequently extended to 2007).<ref>{{Cite web|url=http://www.lyonsinquiry.org.uk/index.php?leftbar=news&text=PN061206|title=Lyons Inquiry Press Notice: 6 December 2006|access-date=15 February 2007|archive-date=28 September 2007|archive-url=https://web.archive.org/web/20070928212158/http://www.lyonsinquiry.org.uk/index.php?leftbar=news&text=PN061206|url-status=live}}</ref>

In Wales, tax bills based on the property revaluations use 2003 prices issued in 2005. Because of the surge in house prices over the late 1990s and early 2000s, more than a third of properties in Wales found themselves in a band higher than under the 1991 valuation. Some properties were moved up three or even four bands with consequent large increases in the amount of Council Tax demanded. Some properties were moved into new Band I at the top of the price range. Only 8% of properties were moved down in bands.

However, a large shift of properties between bands will cause a shift in the allocation of the charge between bands, and the tax levied for each particular band will then drop, as the total amount collected will remain the same for each authority (see "calculation of amount" above).

Between the wholesale revaluations, a major change to a property (such as an extension, or some major blight causing loss of value) can trigger a revaluation to a new estimate of the value the property would have reached if sold in 1991. If such a change would result in an increase in value, then re-banding will only take effect when the property is sold or otherwise transferred.