Income taxes	3 Months Ended
Apr. 30, 2016
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 April 30, 2016, the effective tax rate for the Company was 26.7% compared to 28.9% in Fiscal 2016. The effective tax rate as of April 30, 2016 excludes the effects of any discrete items that may be recognized in future periods. During the first quarter of Fiscal 2017, 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 30, 2016.

Income taxes

3 Months Ended

Apr. 30, 2016

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 April 30, 2016, the effective tax rate for the Company was 26.7% compared to 28.9% in Fiscal 2016. The effective tax rate as of April 30, 2016 excludes the effects of any discrete items that may be recognized in future periods.

During the first quarter of Fiscal 2017, 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 30, 2016.