Quickbooks is not connecting to HMRC today (Dec 8) and VAT deadline is today

I recognized the importance of of processing your VAT on time, Lucie. I'll provide details and troubleshooting steps to ensure you can successfully connect to HMRC and process the VAT before the deadline.

To resolve this issue, you'll need to ensure you're using the correct credentials provided by HMRC specifically for MTD. If you believe that you have used credentials that are not MTD credentials, please disconnect and reconnect to MTD using the correct credentials in a private browser.

Here's an article for more details and guidance: Troubleshooting MTD (Making Tax Digital) issues in QuickBooks Online.

Additionally, please note the available support for QuickBooks Online (QBO) in the United Kingdom (UK) region including the following:
  

• Phone support is available weekdays from 8:00 AM to 7:00 PM.
• Set up a callback is available weekdays from 8:00 AM to 7:00 PM. A support expert will call you as soon as one is available.
• Start a chat with a support expert available weekdays from 8:00 AM to 10:00 PM and weekends from 8:00 AM to 6:00 PM.

You can check out this article for more details: Get help with QuickBooks products and services.
 

Furthermore, you can visit this article that explains how to adjust your VAT liability, what happens after you make a VAT adjustment, and things to remember before submitting a VAT return: Make VAT adjustments in QuickBooks Online.

Feel free to return to this thread whenever you have additional questions about VAT returns. The Community is here to help anytime.