Versions of Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 on LawServer 2023 Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 2022 Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 2021 Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 2019 Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 2018 Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 2016 Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 2015 Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 2014 Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 2013 Nebraska Statutes 77-2770.01. Income tax; return; extension; provisions effective after January 1, 1969 2010 Nebraska Statutes 77-2770.01 – Income tax; return; extension; provisions effective after January