How do i capture customs vat

Welcome to the Community, @accounts-viney-c.

I understand how important it is to enter transactions correctly into your QuickBooks Online account. Let me share with you the steps on how to enter customs tax. 

1. From the Edit menu, choose Preferences.
2. On the Preferences window, select Sales Tax then go to the Company Preferences tab.
3. Click the Add sales tax item button.
4. In the Type drop-down, select Sales Tax Item.
5. Enter the tax name, rate, and select your tax agency.
6. Click OK.

When you set up VAT, QuickBooks Online automatically sets up a list of common VAT codes for you.

The Community Team is always here for your question with VAT setup.