A cost segregation study is a tax-saving strategy that allows commercial property owners to reclassify parts of their building into shorter depreciation schedules. Instead of depreciating everything over 27.5 or 39 years, a study identifies components—like lighting, flooring, and landscaping—that can be depreciated over 5, 7, or 15 years.

Running a small business is rewarding, but it also comes with costs. The good news? Many of those expenses can be deducted to reduce your taxable income. Understanding these small business write offs not only saves money but also helps you reinvest in growth. Here are 10 of the most valuable tax deductions every small business owner should know.