I have invoices in Accounts Receivable marked as unpaid, but I have received the payments. What should I do?

I can help you show paid invoices in your Accounts Receivable (A/R) in QuickBooks Online, Fićo.

To address this accurately, may I ask how you enter the payment? There's a possibility that the payment was associated with the wrong customer. If so, we'll need to identify and correct it.

Also, if the payment was recorded as a deposit, let's ensure it affects the Accounts Receivable (A/R) and then link this to your invoice. Here's how:

1. Go to Transaction from the left panel and choose Chart of Accounts.
2. Select the account where you deposited the payment, and click View register.
3. Choose the deposit and click Edit.
4. In the Add funds to this deposit section, find the deposit.
5. In the Received From dropdown, choose the customer from which the deposit came.
6. From the Account dropdown, click Account Receivable.
7. Tap Save and close.

After the Deposit entry is updated, apply it as a credit to the invoice by following the steps below:

1. Click the + New icon and select Receive Payment.
2. You must now see all open customer invoices and outstanding credits.
3. Under Outstanding Transactions, select the invoice you need to mark as paid.
4. Once done, click Save and close.

Furthermore, I've included an article that'll help process sales and manage customers: Sales and Customers.

Keep us updated if you have further questions about your paid invoices in your Accounts Receivable. Doing so helps us further assist you. Have a great day.