Glad to have you here on the Community page, @martinhurls123.a
I can share with you some information about managing receipts.
It's not necessary to attach receipts to every income and expenses. If you want to keep a record of them in QuickBooks, then you can upload them to your transactions. If not, you don't need to attach them.
To learn more about the receipt capture and identify which receipts you should hold onto, you may open these articles: