Schedule OS

This document is a schedule for claiming a credit on a Wisconsin tax return for income taxes paid to another state. To qualify for the credit, the taxpayer must have been a full-year or part-year Wisconsin resident in 2008 and paid income tax on the same income to both Wisconsin and another state. The schedule collects information about income and taxes paid to other states, and calculates the allowable credit amount based on the income and taxes apportioned to Wisconsin versus the other state.