How do I reconcile HMRC balances against Xero?

HMRC Dues → Reconcile shows the company × tax grid as at a day you choose, with Xero, Saral and HMRC side by side and the reason for any difference (a payment on account, interest, a timing difference). Open a cell for every cause and its action. Post for the whole group posts every reconciling journal across every company in one batch — when you press it. The VAT account view shows the control account as a running statement per company. The HMRC column stays blank until an HMRC statement is read — never zero.