Tax Refunds and their time limits

Please remember that there are time limits for reclaiming tax from HMRC:

Time limits for claiming back Self Assessment tax

Tax year Tax year ended on You must claim by:
2009-10 5 April 2010 5 April 2014
2010-11 5 April 2011 5 April 2015
2011-12 5 April 2012 5 April 2016
2012-13 5 April 2013 5 April 2017

Time limits for claiming back PAYE tax

Tax year Tax year ended on You must claim by:
2009-10 5 April 2010 5 April 2014
2010-11 5 April 2011 5 April 2015
2011-12 5 April 2012 5 April 2016
2012-13 5 April 2013 5 April 2017