An application error has occurred while processing your request (code: "-1")

Thanks for reaching out here in the Community space, @p-skamballis-btc. We'll provide details about the error you encountered inside QuickBooks Online (QBO).

If you're trying to submit a VAT return and you encounter this error, know there's an ongoing investigation similar to the error your situation. Our engineers are aware of it and are currently working on a fix. In this situation, we recommend getting in touch with our Customer Care Team so they can add you to the list of affected users and get updates once a troubleshooting is available. We'll write down the steps to get you going:

1. Sign in to your QuickBooks Online company.
2. Select Help (?).
3. Select either tab to get started:

• Assistant: Get quick, personalized answers. Select a suggested option, or type a question or topic you need help with. If you decide you need further help, you can still Talk to a human.
• Search: Search the QuickBooks Online knowledge base directly, or select Contact Us and choose a way to connect with us:
  • Start a chat with a support expert.
  • Get a callback from the next available expert.

Refer to this article for more information: QuickBooks Online Support.

Additionally, you can visit this page to help you wrap up this year's payroll inside the program: Year-end checklist for QuickBooks Online Payroll.

It's been a pleasure to have you here today, @p-skamballis-btc. Feel free to visit us if you have any additional questions or need further assistance managing VAT returns inside the program. Keep safe.