Step One: Calculate Your After_Tax Income. Your after_tax income is what remains of your paycheck after taxes are taken out, such as state tax, local tax, income tax, Medicare, and Social Security. If you're an employee with a steady paycheck, your after_tax income should be easy to figure out. Look at your paystubs. If health care, retirement contributions, or any other deductions are taken out of your paycheck, add them back in.
How to Set Up Your Budget. Setting up a budget is a straightforward process. It helps to have a list of the bills that you must pay each month as well as your expected income. If you have not budgeted before, you can start by looking at your past three month’s expenses. Using your bank statements to break these into categories. If you have budgeting software, you can upload your statements and use the software to start to sort them.