You are not required to file federal income until your gross income past filling thresholds by filling status. non-taxablle income is not include in your gross income for the filling purpose. These thresholds changed every year due to inflation. Here are example of thresholds for Married filling jointly: 2022: $25,900 -- 2023: $27,700 -- 2024: $29,200.
Failure to file income tax (when required) is not a crime, the IRS will assess failure to file penalty and interest. However, if and when IRS sucessfully proof in Tax Court that an individual has committed an tax evasion scheme, only then you can be convicted for Tax-avoidance crime.