Which factor affects the calculation of the opening value of an asset in Xero?

The amount of accumulated depreciation before the start date is crucial in determining the opening value of an asset in Xero because it reflects the reduction in the asset's value over time due to wear and tear or obsolescence. When setting up an asset in Xero, the opening value is calculated based on the asset's original purchase price, adjusted for any accumulated depreciation that has occurred prior to the registration date in the system. This ensures that the financial records accurately reflect the current worth of the asset as affected by its prior usage.

While the original purchase price provides a starting point for valuation, and the asset's age could influence its overall depreciation, it is the accumulated depreciation that specifically impacts how much value is recognized at the moment of recording the asset in Xero. The market value is relevant for establishing the fair market worth but does not directly affect the historical bookkeeping of the asset's value as reflected in the accounting records.