OR-ASC-CORP: Schedule OR-ASC-CORP, Oregon Adjustments for Corporations (2025)
Oregon · Oregon DOR · Used for tax years 2025
The 2025 Schedule OR-ASC-CORP reports Oregon additions, subtractions, and credits that aren’t specifically included on a corporation or insurance return. It includes sections for additions, subtractions, standard credits, and carryforward credits.
Who files this form
Use the 2025 Schedule OR-ASC-CORP to claim additions, subtractions, or credits that aren’t specifically included on your Oregon corporation or insurance tax return.
You must include this schedule with your Oregon corporation or insurance tax return.
What you'll need
Have these available to complete the schedule:
- Your Oregon corporation or insurance tax return, showing the corporation’s legal name.
- Your federal employer identification number (FEIN).
- The appendices in the instructions for Form OR-20, OR-20-INC, OR-20-INS, or OR-20-S, which provide the codes to use.
- The amounts of the additions, subtractions, and credits you are claiming. For carryforward credits, the schedule asks for the amount from the prior year, the amount awarded this year, and the total used this year.
How to file
Include the completed Schedule OR-ASC-CORP with your Oregon corporation or insurance tax return.
The supplied form does not give a mailing address or e-filing instructions.
Common mistakes
- Use UPPERCASE letters and blue or black ink.
- Print the form at actual size (100%).
- Don’t submit photocopies or use staples.
- Enter the corporation’s legal name as shown on your Oregon return.
- Don’t leave the schedule out of your filing. It must be included with your Oregon corporation or insurance tax return.
Questions people ask
Where do I find the codes for my adjustments and credits?
Use the codes in the appendices of the Form OR-20, OR-20-INC, OR-20-INS, or OR-20-S instructions.
Where do I report additions and subtractions?
Report additions in Section A and subtractions in Section B. Transfer total additions from A21 to Form OR-20, line 2; OR-20-INC, line 2; OR-20-INS, line 8; or OR-20-S, line 2. Transfer total subtractions from B21 to Form OR-20, line 4; OR-20-INC, line 4; OR-20-INS, line 10; or OR-20-S, line 3.
How do I total carryforward credits?
In Section D, enter each credit’s code, amount from the prior year, amount awarded this year, and total used this year. On D21, add only the amounts labeled “Total used this year.” Transfer D21 to Form OR-20, line 19; OR-20-INC, line 13; OR-20-INS, line 22; or OR-20-S, line 15.
Where do refundable credits go?
Enter refundable credits in Section E and total them on E5. Transfer that total to Schedule ES, line 7, of Form OR-20, OR-20-INC, or OR-20-INS.