Versions of Montana Code 15-70-418. Fraudulent returns -- penalty on LawServer 2023 Montana Code 15-70-418. Fraudulent returns — penalty 2022 Montana Code 15-70-418. Fraudulent returns — penalty 2021 Montana Code 15-70-418. Fraudulent returns — penalty 2019 Montana Code 15-70-418. Fraudulent returns — penalty 2018 Montana Code 15-70-418. Fraudulent returns — penalty 2016 Montana Code 15-70-418. Fraudulent returns — penalty