The budget is not only an accounting of the money that actually goes in and out of our hands (which is called cash flow); it's a detailed plan of how we want to spend the money for a certain period of time in the future (a week, fortnight, month or year, for example).

To prepare a budget, one must first accounting for your cash flow and liabilities financial.

• THE CASH FLOW

Cash flow is the sum of money that has flowed in and out of our hands over a period of time. The money that comes in is called “income”, and the money that goes out or is spent is called “expenses”. Cash flow always ends in deficit (debt), surplus (savings) or balance, and knowing this final result, the activity
Budgeting is about making small or large adjustments to your spending plan so that you save more or spend more to achieve your personal goals.

• FINANCIAL GOALS

To achieve financial independence, it's important to be very clear about your short- and long-term personal goals, which help us budget to achieve specific financial goals.
Personal goals can be long-term, such as getting married, having children, buying a house, starting a business, negotiating a better salary, improving your level of education or that of your children, retiring, being able to care for your parents in your old age, etc

Personal goals can also be short or medium term, such as buying an appliance new, study a career, or take a vacation.