Enter “9999” as the school district number for any part of the year you were a nonresident of Ohio.
Both spouses: if you and your spouse were both residents of a school district for the same time period, check both boxes
Filing status: check one, as reported on the Ohio IT 1040
Residency tool: you can use ODT's tool to calculate your “days as resident” and “residency factor” at tax.ohio.gov/SDresidency
Total amount due: pay electronically at tax.ohio.gov/pay or include the Ohio Universal Payment Coupon (OUPC) and your check
Staples: do not staple or paper clip
| Question | Answer |
|---|---|
| Form Name | Form SD 100 |
| Form Length | 5 pages |
| Fillable? | Yes |
| Fillable fields | 315 |
| Avg. time to fill out | 53 min |
| Edition | 2025 |
| Where to send | NO Payment Included: Ohio Department of Taxation, P.O. Box 182197, Columbus, OH 43218-2197; Payment Included: Ohio Department of Taxation, P.O. Box 182389, Columbus, OH 43218-2389 |
| Other names | SD 100, SD100, Ohio SD 100, Ohio SD100, SD 100 Ohio, school district income tax return |
| Official source | Form SD 100 (Rev 2025), Ohio Department of Taxation |
Ohio Sd 100 Form isn’t the one you’re looking for?