What is assumed when I add the action “Invest a windfall”?

When ‘Invest a windfall’ is added as an Action, an income amount equal to the amount of the windfall entered will appear in the cash flow chart (reported as 'Other income') in the reporting year that the windfall occurs.  It is assumed that the amount entered is today's value of the future amount and no tax is deducted from it.

Any windfall income remaining as surplus will be invested in line with any other income surplus.