The current annual pension limit remains at £40,000. In addition, unused relief from the previous three tax years may be utilised once the current £40,000 limit has been used. However, the relief from 2013/14 will lapse on 6 April 2017.
If, for example, you have £10,000 unused allowance from 2013/14 you would need to make pension contributions of at least £50,000 by 5 April 2017 to avoid losing your 2013/14 relief. Remember also that pension savings continue to qualify for higher rate tax relief and may help to reduce your payments on account.