Changes in the tax multiplier may affect the effectiveness of a fiscal policy. This is because the tax multiplier shows the amount of income changes as a result or response to the changes in the amount of taxes. Changing the tax rate will immediately change the level of income and consumption because even though taxes are source of incomes for the government, they are considered additional expenditures on the side of the consumers. In this case, government’s decision on increasing the marginal tax rate will definitely decrease the level of income of the consumers. If income for the consumers will be reduced, there will also be a decrease in the level of consumption as they cut back on their level of spending. These actions will bring the level of planned expenditure in the economy at a lower level and may hinder other economic activities.