Why do I need to enter my spouse's income information when I am filing Married Filing Separately?

Kentucky requires this information to correctly calculate your modified adjusted gross income for the purpose of calculating your Family Size Tax Credit.

Your spouse's federal adjusted gross income (AGI) can be found on Line 11a of their 2025 federal return. To find their Kentucky AGI, look at Line 9 of their 2025 Kentucky return.

If necessary, ask your spouse for this information.