• Did you know about TAX WRITE-OFF on Airplanes and Depreciating Assets? Its also related to New and Used Assets are tax deductible. As for private jets, the tax code allows for deduction of the full cost of a private aircraft, new or used, if used predominantly for business. However, the deduction provided for in the Tax Cuts and Jobs Act of 2017 is subject to complicated rules and penalties. 
• Section 179 Deduction Calculation Example: You purchase a new heavy SUV with a GVWR of 6,500 lbs. for $60,000, and it is used 60% for business purposes. The business-use portion of the vehicle cost is $36,000 (60% of $60,000). So you can claim the full $30,500 maximum allowed for SUVs as a Section 179 deduction. (note – this assumes all other criteria are met and you stay within Section 179’s total equipment spending limits).
• ACQUISITIONS – UNDERSTAND TECHNICAL ACCEPTANCE as it could hurt you as buyer if not aware of its consequences. (LINK)

“The cost of purchasing a private plane can be deducted by a business that owns the plane, said Howard Gleckman, a senior fellow at the Urban-Brookings Tax Policy Center at the Urban Institute. If the plane is used only for business purposes, it can be expensed or written off in the year that it is acquired, Gleckman said. If the plane is used for both business and personal uses, it generally can be written off over a period of years. If it has only personal uses, there is no write-off, experts said.” Link

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