If you qualify for an exception to the imposition of underpayment interest, enter the exception number here and on Form OR-40, box 44a; Form OR-40-N, box 69a; or Form OR-40-P, box 68a.
Filing: if you're claiming an exception or owe underpayment interest, include this form when you file your Oregon return.
Worksheets: figure your required installment payments and total underpayment interest using the worksheets inside Form OR-10 Instructions.
Printing: use UPPERCASE letters. Use blue or black ink. Print actual size (100%). Don't submit photocopies or use staples.
| Question | Answer |
|---|---|
| Form Name | Form OR-10 |
| Form Length | 1 page |
| Fillable? | Yes |
| Fillable fields | 10 |
| Avg. time to fill out | 2 min |
| Edition | Rev. 07-28-25 |
| Issuing agency | Oregon Department of Revenue |
| Matches the agency's file | Yes, checked October 4, 2026 |
| Other names | OR-10, OR10, Oregon 10, Form OR-10, Oregon Form 10 |
| Official source | Form OR-10 (Rev 07-28-25), Oregon Department of Revenue |
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