Xero Invoice Sync for Krikkit pushes paid and refunded Krikkit invoices into Xero, so bookkeepers do not re-enter the ledger each month. Install it on Krikkit 2.1.0 or newer, connect one Xero organisation, map tax treatments and clearing accounts, then let paid invoices sync on the xero queue.

What syncs

Paid, numbered invoice becomes a Xero contact, an AUTHORISED accounts-receivable invoice, a payment on the mapped clearing account, and a PDF attachment
A full refund after a paid sync becomes a Xero credit note, allocated when Xero allows it
Open, failed, and sample invoices stay out of Xero
Amounts and tax come from the issued invoice snapshot; the sync does not recompute VAT

Operator setup

Dashboard path: Finance, then Xero
Xero OAuth web app with Client ID and Client secret
Scopes: openid, offline_access, accounting.invoices, accounting.payments, accounting.contacts, accounting.settings, accounting.attachments
Map each tax treatment to a Xero tax type and revenue account
Map each payment driver to a clearing or bank account
Merchant-of-record posting for Whop and Paddle: net (mode A) or gross (mode
Test connection, sync one invoice, or backfill a date range
Retry failed syncs from the invoice or from Finance, Xero
Daily reconcile through the Krikkit scheduler
Reconnect when the status is needs_reauth; admins can receive a throttled mail alert

Requirements

Krikkit 2.1.0 or newer
PHP 8.3+ and MySQL, same stack as Krikkit
Queue worker that includes the xero queue
Scheduler running for the nightly reconcile
One Xero organisation per Krikkit install

This is an addon for Krikkit. It installs under extensions/Xero and does not patch Krikkit core files.

Xero Invoice Sync Addon for Krikkit