Hello there, Dominique.
Yes, you can automate VAT code application to invoices in QuickBooks Online (QBO) by assigning VAT codes directly to your Products and Services list.
Here's how:
- Go to the Gear icon.
- Select Product and Services under Lists.
- Find the product or service you want to apply VAT codes to. Click Edit next to it.
- In the Tax category section, you can select the applicable VAT code.
- Click Save and Close.

By doing this, the VAT codes will automatically include the invoices associated with that product or service.
For more information about VAT codes and how they work, you can refer to this article: Understanding VAT codes in QuickBooks.
It is also highly recommended to consult a tax professional to ensure that the VAT codes used are accurate and compliant with regulations applicable to your childcare business.
Let us know if you need further assistance.