By listing all of your sources of income against all of your monthly expenditures (from required expenses like mortgage or rent payments to discretionary spending like eating out or going to the movies), you get a true picture of your personal cash flow, which will allow you to make better and more informed financial decisions. An accurate budget will also help you to answer that ever elusive question, "Can I afford it?"
Step 6: Keep checking in. It’s important that you review your budget on a regular basis to be sure you are staying on track. Few elements of your budget are set in stone: You may get a raise, your expenses may increase or you may have reached your goal and want to plan for a new one. Whatever the reason, keep checking in with your budget following the steps above.