For beginning deposits to start up my company, would that go under income, personal, or business?

Thanks for sharing your deposits concern here in the Community, @hgoldberg2022-wi.

The posting of your deposit will depend on the type of account that you choose upon adding a bank account to the system. However, for the different transactions that will be entered in QBSE, the posting may vary based on the category that you've selected.

To learn more about the posting of your entries in QBSE, I recommend scanning through this link: Categorize transactions in QuickBooks Self-Employed. It provides the different categories based on the nature of the transaction.

Let me know if you have any other questions, I'll be around to help you further. Have a nice day!