Before you submit a VAT return, make sure you have:
•Carried out the steps in Setting up MTD: businesses if you are a business, or Setting up MTD: agents if you are an agent.
To submit a VAT return to HMRC
1.Open the VT Transaction+ file containing the VAT return.
2.Click on the VAT button on the main toolbar:
In VT Transaction+:

In VT Cash Book:
3.Select the VAT return from the list on the left of the screen.
4.Select Submit VAT Return To HMRC.