New data show that tax revenues in relation to GDP in most OECD countries are continuing to rise gradually from the 2008 – 2009 declines seen at the beginning of the crisis, according to OECD's annual Revenue Statistics. The average tax revenues to GDP ratio in OECD countries was 34.0% in 2011 compared with 33.8% in 2010 and 33.7% in 2009. The tax to GDP ratio in Ireland was below the OECD average and declined to 27.6% in 2010 before rising slightly in 2011. The tax to GDP ratio in the United Kingdom has been the same as or just above the OECD average.

For further details see http://www.oecd.org/tax/taxrevenuesrisingslowlyacrosstheoecd.htm