Did you buy Home & Business? That is for personal returns that use Schedule C for self employment business income. You probably need Turbo Tax business which is a separate program.
You will need Turbo Tax Business for Windows. It is not available to do online or on a Mac. And it will not do your personal 1040 return. You can have both Turbo Tax Business and a personal version (like Home & Business) installed at the same time.
You can buy the Window's Business DIY program here…..
TurboTax® Business Desktop 2023-2024 | Tax Software Download
