Budget and Net Worth Keep track of your income and expenses for one month. List all your assets and liabilities (debts owed) in a spreadsheet. Based on these documents, develop a monthly budget and a net worth statement. Financial Goals Budget for 25- to 30-year-old Business Professionals Talk to your mentor, family members, or relatives between the ages of 25-30 and who are employed to see what their budgets look like. Develop a sample budget for someone aged 25 to 30 years old. Budget for 55- to 65-year-old Business Professionals Talk to mentors, family members, or relatives between the ages of 55-65 and who are nearing retirement. Develop a sample budget for someone aged 55-65, considering the adjusted income and expenses in this life phase.