PForm 4562: Section 179 Summary: Line 12 - You have elected Section 179 on multiple activities, or have a Section 179 deduction on a K-1 activity. The total amounts of Section 179 you may deduct has been limited to the amount on this line. You must adjust the allowable Section 179 amount in one or more activities using the 179 Information By Activity Smart Worksheet at the activity level (Form 4562 or incoming K-1 worksheet). The amount on this line currently exceeds the sum of the amounts from activities by