I got you covered in uploading paystubs in QuickBooks Self-Employed, tkttransportllc.
QuickBooks Self-Employed is for freelancers. That being said, we're unable to set up payroll and upload paystubs using this subscription. You can check out different QuickBooks Online plans to choose the best option for you.
I've also added this link that has detailed information on what we can do with QuickBooks Self-Employed: QuickBooks Self-Employed Overview
I've also added some resources to get more insights into what plan fits your business needs: