2023 Iowa Code 423.49 – Return requirements — electronic filing

2022 Iowa Code 423.49 – Return requirements — electronic filing.

2020 Iowa Code 423.49 – Return requirements — electronic filing.

2018 Iowa Code 423.49 – Return requirements — electronic filing.

2016 Iowa Code 423.49 – Return requirements

2014 Iowa Code 423.49 – Return requirements – electronic filing.

2009 Iowa Code 423.49 – Return requirements — electronic filing