Explanation:

- Depreciation: It never appears in a cash budget. This is because depreciation is a non-cash expense. It does not involve actual cash outflow.

- Dividend: Dividends paid are a cash outflow. They are reflected in the cash budget as they involve the actual movement of cash.

- Outstanding wages: These are wages that are due but not yet paid. They do not appear in the cash budget until they are paid and involve cash outflow.

- Salaries: Salaries are regular cash expenses and appear in the cash budget when paid.

- Interest income: This is cash received, so it is included in the cash budget as cash inflow.

Depreciation is the correct answer because it does not involve any cash flow.