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STC payments, GST, RCTI and accounting

What should an STC trader portal, API and Xero integration include?

Short answer

A good STC trader portal lets you upload claims with photos, track status per job, download RCTIs and remittances and export data to your accounting software. API and Xero integration are useful at volume, but confirm what actually syncs before relying on them.

Written and checked by the Energy Merchants desk · Reviewed 3 October 2026 · For installers

The portal is where you will spend your time with a trader. A good one makes lodging a claim a five-minute job and reconciliation almost automatic. A poor one means emails, re-uploads and phone calls.

What a portal should do

  • Upload and validation. Photos, serial numbers and the assignment form in one flow, with checks that flag missing items before submission.
  • Status per job. Where each claim sits: received, pre-checked, lodged, approved, paid. No guessing.
  • Rate visibility. The rate and lock status shown on each claim.
  • Documents. RCTIs, remittance advice and payment history downloadable on demand. See RCTIs for STCs.
  • Bulk handling. Several jobs at once, with sensible search and filters.
  • Messages. Queries about a claim attached to that claim, not lost in an inbox.

API integration

An API suits larger installers and software providers that want to push job data straight from their CRM or quoting tool. Ask whether it is documented, versioned and supported, what it covers (submission, status, documents) and whether there is a sandbox. A “we can build something” answer usually means it is not ready.

Xero integration

Reconciling STC income is fiddly because each remittance covers multiple jobs and the trader raises the tax invoice on your behalf. Look for:

  • Invoices or RCTIs matched to a customer or job reference.
  • GST coded correctly, see RCTIs, GST and ABN.
  • Remittance lines that match the bank deposit.
  • A clean export, even if there is no live sync.

Some traders offer a live connection; others give a CSV that imports cleanly. Either is workable if it saves you retyping.

From the desk: ask for a demo using your own data, not a polished sample. Five jobs, one rejected claim, one RCTI.

What this means for installers

Treat the portal as part of the price. An hour a week saved on admin pays for itself against a small rate difference. Ask each trader for a walk-through and compare it against the comparison table. Energy Merchants pairs a named account manager with a compliance desk that checks claims before lodgement, which matters more than any dashboard when something goes wrong. See the how it works page for the flow and published rates for today’s number. If you are changing traders, onboarding steps lists what to set up first.

Follow-up questions

People also ask

Does every STC trader have an API?
No. Many rely on portal uploads and CSV exports. Ask whether a documented API exists and who supports it.
Can STC payments sync to Xero automatically?
Some traders offer integrations or exports that make reconciliation quick. Check whether it handles RCTIs, GST and per-job references.

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