For a rental property, the correct depreciation period for a furnace is27.5 years, not 7 years. TurboTax might have selected 7 years due to a misclassification or an error in the asset category.
Here’s why it’s 27.5 years:
Residential Rental Property: Furnaces are considered part of the residential rental property and are depreciated over 27.5 years using the Modified Accelerated Cost Recovery System (MACRS)
Component of the Property: Since the furnace is a central unit that becomes a component of the house itself, it follows the same depreciation period as the property
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