Adding a subcharge can be done when a new charge is being created.
After the charge amount and VAT % section, you will see a subcharge section, with an add button.

- Click add to start adding a subcharge
- Select a payee from the dropdown. The list of payees is your suppliers list
- Enter a reason for the subcharge
- Enter a reference for the subcharge. This is the payment reference for the subcharge
- Enter the net amount (exclusive of VAT) for the subcharge
- Adjust the VAT %, if applicable
- Finally, just click add charge
None of the subcharge details are visible by the landlord. The landlord will be charged by whoever is the payee of the main charge.