HMRC has issued Brief 69/09 which explains how businesses trading with other EU Member States could be affected by changes from 1 January 2010.
One of the changes relates to Intrastat thresholds. From 1 January 2010 the exemption threshold for arrivals is being increased from £270,000 to £600,000 and the exemption threshold for dispatches is being reduced from £270,000 to £250,000.
Full details of all the changes can be accessed here