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.
Though a monthly budget is generally the most reasonable timeframe for which to set up an initial personal or household budget, there are many sources of income and expenses that do not perfectly follow a monthly schedule.For instance, you may receive a paycheck every week or two weeks, not once a month. In that case, you will want to calculate how that adds up over one month's time and write that in the appropriate row and column. You may also have certain expected or even recurring expenses that occur more or less often than monthly.