I cannot connerct with HMRC to file my clienjts VAT return

Hi there, arshads2004. Please ensure that your Making Tax Digital (MTD) connection in QuickBooks is active and re-authorize it using the correct credentials.

Confirm that your client has granted you approval for digital submissions, often referred to as the “digital handshake.” Additionally, verify that the VAT registration number and period details in QuickBooks exactly match those in HMRC’s records.

To address any MTD issues in QuickBooks, you can reference this article: Fix MTD (Making Tax Digital) issues in QuickBooks (VAT and ITSA).

Please let us know if you need any further assistance.