Income taxes	9 Months Ended
Oct. 31, 2015
Income Tax Disclosure [Abstract]
Income taxes	Income taxes Signet has business activity in all states within the US and files income tax returns for the US federal jurisdiction and all applicable states. Signet also files income tax returns in the UK, Canada and certain other foreign jurisdictions. The provision for income taxes is based on the current estimate of the consolidated annual effective tax rate. As of October 31, 2015, the Company expects its annual effective tax rate to be approximately 29.0% compared to 29.3% as of November 1, 2014. The estimated effective tax rates exclude the effects of any discrete items that may be recognized in future periods. During the third quarter of Fiscal 2016, there has been no material change in the amounts of unrecognized tax benefits, or the related accrued interest and penalties (where appropriate), in respect of uncertain tax positions identified as of January 31, 2015.

Income taxes

9 Months Ended

Oct. 31, 2015

Signet has business activity in all states within the US and files income tax returns for the US federal jurisdiction and all applicable states. Signet also files income tax returns in the UK, Canada and certain other foreign jurisdictions. The provision for income taxes is based on the current estimate of the consolidated annual effective tax rate. As of October 31, 2015, the Company expects its annual effective tax rate to be approximately 29.0% compared to 29.3% as of November 1, 2014. The estimated effective tax rates exclude the effects of any discrete items that may be recognized in future periods.

During the third quarter of Fiscal 2016, there has been no material change in the amounts of unrecognized tax benefits, or the related accrued interest and penalties (where appropriate), in respect of uncertain tax positions identified as of January 31, 2015.