FAQs - School District: Income

How do I correct my SD 100 after I have already filed it?

Make any correction to your return by filing an amended school district income tax return (SD 100X). To speed up the processing of your amended return, include a copy of your W-2's and any cancelled checks used as payment on your original return.

This form is available on our Web site at Tax Forms or by calling our toll-free forms request line at 1-800-282-1782.