When you deposit money from your income source, you simply allocate the appropriate dollar amounts to the budget category accounts, based on your spending plan or budgeting worksheet. It's easy to move money around your various spending categories or budget category accounts whenever you need to. When a bill comes due, you simply transfer money from the budget category account to your checking and then electronically pay the bill. It's easy and extremely fast once you set it up through your banking institution.
Include all variable expenses now, car maintenance, electricity, heating, these can vary throughout the year you need to calculate them and come up with an average monthly amount. None essential expenses like eating out coffee at Starbucks, weekend getaways, extravagant vacations, fancy clothing, motorcycles, ATV's, if you use them, write them down, realize these are wants, not needs. Now total these all up, fixed expenses, variable expenses, and non_essential expenses,there you now have your total expenses.