How do Section $179$ deductions aid small businesses?

Section $179$ allows eligible property, up to stated limits$,$ to be fully expensed in the year of purchase.

Section $179$ allows firms established within the past $5$ years to fully depreciate all asset purchases in the

year of acquisition.

Section $179$ grants a tax credit, or dollar for dollar reduction in taxes, in an amount equal to the cost of the

eligible property acquired.

Section $179$ allows depreciation deductions in excess of a firm's taxable income, thereby allowing firms to

receive a tax refund of the excess amount.