If you're self_employed, your after_tax income equals your gross income less your business expenses, such as the cost of your laptop or airfare to conferences, as well as the amount you set aside for taxes. You're responsible for remitting your own quarterly estimated tax payments to the government because you don't have an employer to take care of it for you.
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.