If a client payment is reflected in the chart of accounts, why is it not reflecting that the invoice is paid?

Let's work together to determine why the payment isn't reflected in your invoice, michele.

If you're using QuickBooks Payments to take and process payments, the invoice will automatically show as paid once your customer directly pays using the link you send via email.

Since the payment appeared in the Chart of Accounts, but the invoice still shows unpaid, can you share how you received the funds? Did your client directly give the payment to you? Or did they send a deposit? 

In case your client paid using a deposit, I recommend following the steps below to rectify this issue.

First, find the deposit entry in your bank register and ensure the account selected is Accounts Receivable (AR):

1. Go to the Gear icon and then select Chart of accounts.
2. Find the account you deposited the payment to, then click View register.
3. Find and select the correct deposit. Then Edit.
4. In the Add funds to this deposit section, find the deposit.
5. From the Received From drop-down menu, add the client where the deposit came from.
6. From the Account drop-down menu, add the AR account.
7. Hit Save and close.

Once you update the deposit, apply it as a credit to the invoice to link the two entries:

1. Go + New, and select Receive payment.
2. From the Customer drop-down menu, select the client's name. It displays all unpaid and outstanding credits for your customer.
3. On the Payment date field, enter the day you received the payment.
4. In the Outstanding Transactions section, select the correct invoice you want to mark as paid.
5. In the Credits section, choose the deposit.
6. Hit Save and close.

For more details about the process, please see this article: Link a bank deposit to an invoice in QuickBooks Online.

If your client used a different payment method, I suggest sharing the info in this thread. Adding a screenshot would be a great help, too.

Additionally, I've added this article that can help you gently remind customers about invoice due dates to ensure they pay on time: Send invoice reminders automatically or manually in QuickBooks Online.

This thread is always open if you need assistance managing invoices or receiving payment. I want to ensure your record is always accurate. Keep safe always!