A more thorough explanation:

Definition: A casualty pot is a term used in tax evaluation to determine whether there has been a net loss or gain in casualty gains and losses. It is compared to the main pot to determine tax liability.

Example: Let's say you own a business and your office building was damaged in a flood. The cost to repair the damage was $50,000. However, you received an insurance payout of $40,000. In this case, the casualty pot would be $10,000 ($50,000 - $40,000). This amount would be compared to the main pot to determine your tax liability.

Explanation: The example illustrates how the casualty pot is used to determine tax liability. In this case, the business owner experienced a casualty loss due to the flood damage. However, they also received an insurance payout which offset some of the loss. The casualty pot is the difference between the cost to repair the damage and the insurance payout. This amount is then compared to the main pot to determine the net loss or gain and the resulting tax liability.