Accumulated depreciation:
The total depreciation recorded on an asset since its acquisition
The total amount of depreciation expense recorded to date for the company's fixed assets. On the bal
Is the amount of depreciation already taken against an asset. 
Accumulated depreciation is a business term for the total amount written off the value of an asset. It is the sum of the yearly instalments of depreciation since the asset was acquired.
- Total DEPRECIATION pertaining to an ASSET or group of assets from the time the assets were placed in services until the date of the FINANCIAL STATEMENT or tax return. This total is the CONTRA ACCOUNT to the related asset account.
The total amount of recorded for an asset since its date of acquisition.
Accumulated depreciation is the total sum of depreciation expense recorded for an asset. In other words, it?s the amount of costs the asset has been allocated thus far in its?useful life.