We appreciate you choosing TurboTax,
Assume that you started working as a self-employed person in January and received all payments in march. From January (the date you became self-employed) onwards, you are self-employed.
Please visit our TurboTax links provided for further clarifications:
Self-employment Centre
Guidelines for Reporting Self-Employment Income
Please contact our phone support team or contact us directly on Facebook or Twitter if you require further assistance.