Thanks for reaching out about your missing August invoice, @Zerlina.

First, refresh your QuickBooks Online Accountant portal or log out and log back in. This often updates the invoice list. You can also check the Billing & Subscription section under the Gear icon.

In the meantime, you can also, log in to your Intuit account at accounts.intuit.com to see your billing history and check your registered email or spam for an invoice copy from Intuit. 

For more details on accessing your QuickBooks subscription invoices and for FAQs, you can refer to this article: QuickBooks monthly subscription invoice.

You can also reach out to our QuickBooks Online Support. They can check your account and provide a copy of the invoice.

Let us know if you have any other questions.