Cost basis is a measure of the amount of the original investment in a stock or other asset. It is often used to calculate capital gain or loss, especially for tax purposes. The gain or loss is the price which the asset was sold at minus the cost basis.

You will need your finacial records to use this calculator.

# of Units
Cost per Unit
Transaction Type Bought
Sold
Total Units
Total Cost
Adjusted Base Cost
Gain or Loss