May be more of an accountant question but I already assumed that I need to attach my invoice/receipts to every outgoing business transaction, but what about the incoming transactions? When my customers pay me, do I need to attach their invoice to the transaction? Even though the invoice was created through quickbooks anyway? How comes there isn't a way of assigning an incoming transaction to an invoice I have created? I'm using Quickbooks Self Employed. Thanks!
Allow me to help you and share some insights about managing your invoices in QuickBooks Self-Employed (QBSE).
In regards to this, it all depends on you either you want to attach those invoices to your business transactions or not. If you’re unsure of this, I recommend consulting with an accountant for the best advice and action to take.
Also, the transaction page and invoice page are not connected. Thus, assigning income transactions to an invoice is not available.