Automation
How to connect Xero to your job software (and end double entry)
Quick answer
Connect them so the job flows one way and the money flows back: a job marked complete in your job software should create the draft invoice in Xero with the right contact, line items and reference — and the payment status should flow back so the ops side knows what is settled. Many tools have a native Xero connector that covers the basics; when yours doesn’t, or it syncs the wrong fields for how you work, a small piece of custom glue between the two APIs does it properly. Either way, nothing gets replaced — Xero stays, your job software stays, the re-typing goes.
Related: Systems integration — how we connect your tools · Case study: one link per job
The double-entry tax
Here is the pattern in almost every growing operations business: the job lives in one system, the money lives in Xero, and a person carries information between them. Every completed job gets re-typed as an invoice. Every payment gets checked in one tab and updated in another. It is only a few minutes each time — multiplied by every job you ever do.
The cost is not just the minutes. Re-typing invites errors, invoices wait for whoever does the re-typing, and the two systems drift apart — so nobody fully trusts either one.
What a proper connection does
Done right, the connection is invisible — the systems just agree:
- Contacts sync once — the client exists in both systems without being created twice.
- Job complete → draft invoice in Xero, with the line items and job reference filled from the job record.
- Payment status flows back — the ops side can see what is paid without asking accounts.
- One reference ties them — from any invoice you can find the job, and from any job the invoice.
When the native connector isn’t enough
Plenty of job-management tools ship a Xero integration, and if it fits how you invoice, use it — that is the cheapest possible win. Where they fall short is specificity: they sync the fields the vendor chose, not the ones your process needs. Progress claims, part-invoicing, non-standard line items, a sign-off step before anything is billed — the moment your flow has a rule the connector doesn't model, people go back to re-typing.
That gap is where a small piece of custom integration earns its keep: purpose-built glue between the two systems' APIs that models your rules exactly. It is one of the smallest projects we do, because both systems already exist — we wire the gap, not rebuild the house.
What it looks like in practice
We built this pattern for a Melbourne installation company: the installer signs off a job on their phone, and the record flows back to the office systems automatically — nothing re-keyed, and the office can see where every job is up to without ringing anyone. The full write-up is in the case study below.
Common questions
Do we have to replace Xero or our job software?
No — the whole point is keeping both. Integration connects the tools you already pay for; nothing is migrated, and your accountant keeps working exactly as before.
Our job software has no Xero integration — are we stuck?
No. If both systems have an API — and almost everything does now — a custom connection can be built between them, shaped to your invoicing rules.
How long does an integration take?
Small connections ship in days to a couple of weeks. It is wiring between existing systems, not a new build — which is also why it costs less than people expect.