If VAT Code is 20.0% S, which should I put ‘20% Purchases’ or ‘20% Sales’ at VAT column in Bank Deposit (sales) page?

Hello there, britannia. Allow me to provide you with some details on VAT codes.

Goods or services that are outside the scope of the UK VAT system, including those bought or sold outside of the EU, are not subject to VAT charges. Such transactions will not appear on your VAT returns. You can read our complete guide for VAT codes in QuickBooks Online. 

You can also refer to the HRMC guidance for more insights on when to use this rate. 

Furthermore, you can explore the following resources to learn about the flat rate scheme and how to set up or record VAT codes and payments: 

• UK Flat Rate Scheme.
• Set up and edit VAT settings, codes, and rates. 
• Record a VAT payment or refund. 

Come back here anytime you need more information with VAT codes. I'm here to assist you always. Best wishes!