Senate File No. 4 is a proposed law that aims to change the way military retirement pay is taxed in Minnesota. If passed, this bill would allow individuals to subtract more money from their taxable income if that money comes from a military pension or other retirement payments provided by the federal government. The specifics of how much can be subtracted are detailed in reference to certain sections of United States Code, which cover different types of military and federal employee retirement systems.

The subtraction calculations are based on the amount of time the taxpayer served in the military relative to their total federal service. However, to benefit from this subtraction, individuals must not claim a specific tax credit outlined under another section of the law. The bill also provides methods for how to calculate the proportion of military service in determining the taxable amount of the retirement pay. Essentially, this bill is designed to potentially lower taxes for those receiving military pensions, encouraging a financial break for retired military personnel.