Final answer:
The maximum section 179 expense is subject to IRS guidelines and depends on the total cost of qualifying property. For 2023, the limit is $1,050,000, phased out when the total cost exceeds $2,620,000.
Step-by-step explanation:
The maximum section 179 expense that Mark, Inc could take for 2023 can be calculated using the IRS guidelines. For 2023, the maximum section 179 expense deduction limit is $1,050,000. However, this limit begins to phase out when the total cost of qualifying property exceeds $2,620,000.
So, in this case, since the cost of the machine is $3,000,000, the maximum section 179 expense that Mark, Inc could take for 2023 would be $1,050,000 minus the amount in excess of $2,620,000.