Equipment for what? Some kind of business you own? If so, what type? single member LLC? Sole proprietorship? S-Corp? C-Corp? Partnership? Something else?
What kind of equipment? That could matter big time. For example, in some (not all ) cases equipment that is used to produce business income on a recurring basis is capitalized and depreciated over time. But if that equipment costs less than $2500 and meets other stringent requirements, you can just expense it in full in the year of purchase.
If it's vehicular type equipment such as a tractor or backhoe, then that's treated entirely different from something such as an air compressor or generator. It can get more involved too, because different vehicle types can be treated differently for tax purposes depending on what it is, and what it's actually used for.
Overall I suspect you're asking about the SEC 179 deduction and/or the special depreciation allowance. With more details hopefully someone can make more sense of this and provide you will feedback more specific to your situation.
