Ugandan VAT-registered businesses are legally required to issue fiscal documents through the Uganda Revenue Authority (URA) EFRIS system, but ERPNext core has no concept of EFRIS. Out of the box, ERPNext gives you a clean Sales Invoice, VAT accounts, and a stock ledger, yet none of it talks to URA. Finance teams end up re-keying every invoice into the EFRIS web portal or a separate offline tool, reconciling two sets of numbers, and manually pasting fiscal document numbers and QR codes back onto printed invoices. That double entry is slow, error-prone, and a compliance risk the moment volume grows.

This is where a purpose-built integration is needed rather than a generic tax setting. ECOSIRE builds a proper Frappe application — its own module, DocTypes, and role profiles — that connects ERPNext to the EFRIS API. When a Sales Invoice is submitted, a hooks.py document event (on_submit) triggers a server-side call that assembles the EFRIS fiscal document payload from the invoice lines, tax templates, and customer TIN, signs and transmits it to URA, and writes back the returned fiscal document number, verification code, and QR data onto the invoice. A custom print format renders the fiscal number and QR code so the document you hand the customer is the compliant one. Failed or rejected submissions are logged against the invoice with the URA error, queued for retry, and surfaced to the finance role instead of failing silently.

Underneath, we model the pieces EFRIS actually requires. Goods and services are registered and mapped to URA commodity/tax categories through a dedicated DocType and a Item-linked field, so stock and the EFRIS goods register stay in agreement. VAT and withholding tax are configured against ERPNext tax templates with the correct EFRIS tax category codes. Credit notes are handled as EFRIS credit applications — a return or reversal in ERPNext generates the matching EFRIS credit note referencing the original fiscal document, so refunds and cancellations remain traceable end to end. Whitelisted methods expose the submission and status-check actions to client scripts and the Frappe REST API, and a scheduler event reconciles pending submissions in the background so a transient URA outage never leaves an invoice stranded.

Because this is a build-to-order engagement, we tailor the app to your chart of accounts, item catalogue, tax posture, and EFRIS credentials rather than shipping a one-size-fits-all download. We start with a short scoping call, confirm the exact EFRIS flows you use (standard sales, credit notes, withholding, exemptions), then build, test on a staging bench against the URA sandbox, and hand over installable source, documentation, and a git repository. Typical delivery is one working week from confirmed scope, and we support you through go-live and a defined post-launch window on Frappe/ERPNext v15/v16.