How do I pay HMRC, a lender or another group company with no bill?

Payment Runs → Transfers: one row per payment — FROM a company and bank, TO another group company or an outside payee (HMRC, a lender), each side's statement reference and the amount. Download the bank file and the batch locks; Close batch posts each row to Xero as Spend or Receive Money named for its counterpart, so both bank feeds match without a manual journal. Outside payees are set on Settings → Payees & own accounts.