Part II
2025 Publ 946 (PDF) · 2026-10-03 edition · updated 2026-10-04 · United States
- Subtract line 10 from line 9. This is the limit on the amount you can deduct for depreciation (including any special depreciation allowance) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Cost or other basis (reduced by any alternative motor vehicle credit 1 or credit for electric vehicles 2 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Multiply line 12 by line 8. This is your business/investment cost . . . . . .
- Section 179 deduction claimed in the year you placed the car in service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Subtract line 14 from line 13. This is your tentative basis for depreciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Multiply line 15 by the applicable percentage if the special depreciation allowance applies. This is your special depreciation allowance. Enter -0- if this is not the year you placed the car in service, the car is not qualified property, or you elected not to claim a special depreciation allowance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note:
- If line 16 is equal to line 11, stop here. Your depreciation deduction (including your special depreciation allowance) is limited to the amount on line 11.
- If line 16 is less than line 11, complete Part III.
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