The Family Spending On Alcohol Calculator helps you calculate the amount your family is spending each month on alcoholic drinks. To get started, calculate each person's weekly intake of alcohol and then add in of all the money spent per week on the alcohol. In the next tab, key in your total income after reduction of income tax and other deductions such as National Insurance Contributions. Press calculate and the calculator gives you the exact percentage share of the after-tax income spent on alcohol every month by the entire family. The Family Spending On Alcohol Calculator is a fun and quirky calculator which can be used to do some serious thinking on alcohol intake as well as help figure out the money your household spends on booze. Make sure you enter the tax-deducted income to ensure correct data figures.