When you turn on the VAT in QuickBooks Online, the program automatically creates the common codes, 9826. That includes the reverse charge.

Here's how:

1. Go to the Taxes menu and then select the VAT tab.
2. Click on Set up VAT and then fill in the necessary fields.
3. Then, choose the Edit VAT drop-down arrow, then select Edit rates.
4. Click the radio button to turn the code on.

If you're unable to see the reverse charge, I suggest including the inactive ones. You can do this by clicking on the Gear icon and then place a checkmark in the Include inactive checkbox. 

For more information about VAT codes, I suggest browsing this article: Set up and Edit VAT Settings, VAT Codes, and VAT Rates.

Additionally, from April 2019, all eligible UK VAT-registered businesses will have to keep their financial records in a digital form and submit their VAT returns using approved software. To learn more details, I encourage you to browse this article: Submit a VAT Return in QuickBooks Online.

Keep in touch with us if you have other VAT concerns. Doing so helps us to further assist you.

How do I get a code for sales invoices? The new code RC SG is only for purchases...

Hi tk1970, 

We'll be implementing a new VAT code in the near future to accommodate the reverse charge relating to CIS and we'll be updating all customers via email once this is released.

Thanks