When creating invoices, after entering amount, I have to select the VAT rate from drop down menu in the next column. Can quickbooks automatically enter my default VAT?

Welcome to the Community, @ian12.

Yes, QuickBooks can eliminate this extra step and automate your VAT rate selection every time you create an invoice. You can set this up under Products and Services by following these simple steps:

1. Go to the Gear icon.

2. Select Products and Services.

3. To the right of the item or service, click on the Edit option.

4. On the Tax field, click the drop down button and select the desired VAT rate. 

5. Click Save and close.

That should do it. Every time you select a product or service, with its VAT rate preset in the Products and Services, should have a default tax rate in your invoice.

This simple automation could save you time and help rid the possibility of a misselection of VAT rate. 

Here's a good article that could help you Set up and edit VAT settings, VAT codes and VAT rates . This enables you to make corrections to your VAT registration numbers, make changes to your filing frequency, amend your VAT accounting scheme and more. 

Should you have further questions, just drop a comment below. I'd be glad to help.