placed in service (see instructions) 3 Threshold cost of section 179 property before reduction in limitation 4 Reduction in !irritation. Subtract Ste 3 from line 2. If zero or less, enter 6- 5 6 Ire Ocecripten c4 onerty Oaths limitation br lac yea. Subtract line 4 from line 1. II wear Ins. enter