1. Constant use: Due to constant use of the fixed assets there exists normal wear and tear that leads to fall in the value of fixed assets.
2. Expiry of time: With the passage of time, whether assets are used or not, its effective life decreases. The natural forces like rain, weather, etc. lead to deterioration of the fixed assets.
3. Obsolescence: Due to the fast technological innovations and inventions today’s assets may be outdated by tomorrow’s sophisticated assets. This leads to the obsolescence of fixed assets.
4. Expiry of legal rights: If an asset is acquired for a specific period of time, then, whether the asset is put to use or not, its value becomes zero at the end of its useful life.