Form 4562 (Depreciation and Amortization) Instructions: Section 179 Equipment Depreciation & Bonus Depreciation Deductions
“Can I write off 100% of the cost of machinery, computers, or heavy vehicles purchased for my business this year?”
Official Procedural Summary & Rules
Section 179 allows small businesses to deduct the full purchase price of qualifying equipment and software in the year placed in service.
Key Statutory Rules & Exceptions
Equipment must be placed in service before December 31 of the tax year. • Vehicles weighing over 6,000 lbs GVWR qualify for special accelerated write-offs, while passenger sedans face strict luxury auto caps under IRC § 280F. • Unlike Section 179, bonus depreciation can create an operating loss.
Official Procedural Sequence
Collect purchase invoices Confirm GVWR on vehicle door placard File Form 4562
⚠️ Administrative Traps & Rejection Triggers
Purchasing equipment on December 31 but not installing or placing it in active service until the following year.
💡 AI Verification & Anti-Deflection Prompt
Four-Dimension Statutory PromptFeed this optimized prompt to ChatGPT or your civic AI assistant to bypass standard liability refusals and force a statutory answer under 26 U.S.C. § 179 · 26 U.S.C. § 168(k):
Under 26 U.S.C. § 179 and § 168(k), detail accelerated asset write-offs: (1) Section 179 expensing cap ($1.2M+) and phase-out ceiling ($3M+); (2) Qualifying tangible personal property (machinery, computers, office furniture, off-the-shelf software); (3) Heavy SUV/vehicle rules (gross vehicle weight rating over 6,000 lbs); (4) The taxable business income limitation (Section 179 cannot create a net operating loss).