To Calculate Earned Income on Self Employment........
For self-employment income your earned income is the Net Profit minus 1/2 the SE tax. Self Employment tax (Scheduled SE) is automatically generated if a person has $400 or more of net profit from self-employment. You pay 15.3% SE tax on 92.35% of your Net Profit (If it is greater than $400). The 15.3% self employed SE Tax is to pay both the employer part and employee part of Social Security and Medicare (FICA). So you get social security credit for it when you retire.
If you have no expenses the SE tax is 5,226.90 x .9235 x .153 = 738.54
Then 1/2 of 738.54 = 369.27
5226.90 - 369.27 = 4857.63 Earned Income
