Hi there, rainbow-sophia.
If you’re referring to the All Sales or Transaction List page, invoices will show a positive amount by default. They’ll also add up to your company’s accounts receivable.
On the other hand, their payments will reflect a negative amount, which will deduct your accounts receivable or your customer’s balance.
You can instead pull up the SALES BY CUSTOMER SUMMARY report if you want to check the total sales by customer:
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