Step Two: Limit Your Needs to 50 Percent of Your After_Tax Income. Now go back to your budget. How much do you spend on "needs" each month, things like groceries, housing, utilities, health insurance, car payment, and car insurance? According to Warren and Tyagi and their 50ቺተ rule, the amount that you spend on these things should total no more than 50 percent of your after_tax pay.
Begin by listing your income for the month. This should include any paychecks you receive, as well as income from other sources like child support or investments. If you have a business, you should include the amount that you pay yourself out of the business each month.