In the absence of any provision to the contrary, for the purposes of income tax, the normal rule is that claims are to be made within four years from the end of the tax year to which they relate. Before 1 April 2010, the time limit was generally five years from 31 January next following the end of the tax year (TMA 1970, s. 43(1)).
In certain cases, HMRC may permit an extension of the strict time limit in relation to certain elections and claims.
Averaging election for furnished holiday accommodation
First anniversary of the normal self-assessment filing date for the tax year