I’ve gone to do a new invoice for a customer I work for each month but the invoice is going to automatic payment even though it’s not due yet. It moves then to paid.

I would be pleased to offer insights regarding invoices that are automatically designated as paid, Katherine.

QuickBooks Online includes a functionality that enables the automatic application of credits to invoices. When this feature is enabled, any available credits for specific customers will be automatically applied to newly generated invoices. If the credit amount is sufficient to cover the invoice total, the invoice will be marked as paid.

To address this issue, we should initially disable the feature to prevent its recurrence in the future. The following steps outline the process:

1. Click the Gear icon, then select Account and Settings.
2. Select Advanced from the left menu and go to the Automation section.
3. Toggle the Automatically apply credits option to turn it off.
4. Click Save, then Done.

Once done, let's open the generated invoice that has been designated as paid and remove the associated payment. This action will revert the invoice status to unpaid.

1. Click Sales from the left menu, then find the newly-created invoice.
2. Select the 1 payment link at the upper right-hand above the PAID payment status.
3. Hit the date link.
4. On the Receive Payment page, select the invoice.
5. Click More at the bottom and select Delete, then choose Yes to confirm.

For additional tips about applying credits in QuickBooks Online. Refer to this article: Handle a customer credit or overpayment in QuickBooks Online.

You may want to gain more information about receiving payments in QuickBooks Online, I recommend checking this article: Record invoice payments in QuickBooks.

Keep us updated if you have further questions about your sales transactions. Doing so helps us further assist you. Have a good one!