Amended Returns

An amended return is filed when it is necessary to make a correction to your original Kansas tax return.

If you amend your Federal return or your Federal return was changed by the Internal Revenue Service, you must report these changes to the Kansas Department of Revenue. Your amended return must be filed within 180 days of the date the federal adjustments are paid, agreed to or become final, whichever is earlier. To avoid penalties, any additional Kansas tax owed must be paid with interest when filing your amended return.

To report changes to your current Kansas tax return, you must complete the Individual Income Tax (K-40) and check the box for amended return. In addition, check one of the boxes to show the reason for amending.

When filing an amended return include copies of all supporting documentation, such as your amended federal return and additional W-2 forms.