Thanks for joining us here, @nickburke.
QuickBooks Self-Employed (QBSE) and QuickBooks Online (QBO) are two different platforms. Thus, you'll want to enter the transactions manually in QBO.
There are two ways to enter past sales and A/R transactions like invoices. Either chronologically or in batches. Feel free to read through about entering historical information in QBO.
Moreover, if you plan to connect the same bank or credit card account you used in QuickBooks Self-Employed, you don't have to move the transactions. You'll just have to connect the account to QuickBooks Online. This will allow transactions to automatically download in your QBO account.
You can also visit our QuickBooks Help Articles page if you need some reference in completing your other tasks.
Feel welcome to reach out to me again with any questions you may have and I would be more than happy to help.
