NIE Networks publishes annually its Regulatory Accounts:
- 2023/24 Summary Regulatory Accounts - to 31 March 2024
- 2022/23 Summary Regulatory Accounts - to 31 March 2023
- 2021/22 Summary Regulatory Accounts - to 31 March 2022
- 2020/21 Summary Regulatory Accounts - to 31 March 2021
- 2019/20 Summary Regulatory Accounts - to 31 March 2020
- 2018/19 Summary Regulatory Accounts - to 31 March 2019
- 2017/18 Summary Regulatory Accounts - to 31 March 2018
- 2016/17 Summary Regulatory Accounts - to 31 March 2017
- 2015/16 Summary Regulatory Accounts - to 31 March 2016
- 2014/15 Summary Regulatory Accounts - to 31 March 2015
- 2013/14 Summary Regulatory Accounts - to 31 March 2014
- 2012/13 Summary Regulatory accounts - to 31 March 2013
- 2011/12 Summary Regulartory Accounts - to 31 March 2012
- 2010/11 Summary Regulatory Accounts - to 31 March 2011
- 2009/10 Summary Regulatory Accounts - to 31 March 2010
- 2008/09 Summary Regulatory Accounts - to 31 March 2009
- 2007/08 Summary Regulatory Accounts - to 31 March 2008