Section 179 Expensing

Section 179 of the IRS tax code is one of the best tax benefits available to small businesses. Instead of spreading the cost of a business asset over its useful life through depreciation, Section 179 lets you deduct the entire purchase price in the year the asset is placed in service. It's an immediate write-off, and it can significantly reduce your tax bill in the year you make a major purchase.

For 2025, the Section 179 deduction limit is $1,220,000, and the phase-out threshold begins at $3,050,000 in total equipment purchases. This means most small businesses can deduct the full cost of virtually any equipment purchase in the year they buy it. Qualifying assets include tangible personal property like machinery, equipment, computers, office furniture, vehicles (with some limits), and certain software. It also covers some improvements to nonresidential real property like HVAC, roofing, fire protection, and security systems.

There are some important rules: the asset must be used for business more than 50% of the time, it must be placed in service during the tax year you're claiming the deduction, and your Section 179 deduction can't exceed your taxable business income for the year (you can't use it to create a loss). Any excess can be carried forward to future years. Also note that vehicles have special limits — passenger vehicles are capped at specific amounts depending on vehicle weight.

Section 179 can be a game-changer for small business cash flow and tax planning. Instead of waiting 5-7 years to fully deduct a major purchase, you get the entire tax benefit upfront. This effectively reduces the real cost of the purchase in Year 1. If you're in a 25% tax bracket and buy a $40,000 piece of equipment, the Section 179 deduction saves you $10,000 in taxes that year — making the effective cost $30,000. Smart business owners time their equipment purchases to maximize Section 179 benefits, especially in years with higher-than-usual income.