Technical Documentation

NRS Technical Compliance Dossier

InvoiceApp.ng Architecture and Standards for the 2026 E-Invoicing Transition.

1. Executive Summary

InvoiceApp.ng is an AI-augmented financial operating system designed for the Nigerian SME and freelance market. We are committed to ensuring 100% compliance with the **Nigeria Revenue Service (NRS) Merchant Buyer Solution (MBS)** mandate, set to go live on July 1, 2026.

As an accredited Access Point Provider (APP), our infrastructure is designed to facilitate real-time transmission of invoice metadata to the national revenue portals while maintaining the highest standards of data security and business continuity.

2. Core Compliance Pillars

2.1 Real-Time Transmission (MBS API)

Our system integrates directly with the NRS MBS APIs. Every invoice marked as "Verified" undergoes a real-time validation check against national tax rules before a unique **NRS Serial Number** is assigned. This ensures that the invoice is legally recognized for tax deductions by the buyer.

2.2 Standardized Quantity Codes

In accordance with the 2026 standards, InvoiceApp.ng enforces the use of standardized quantity codes (e.g., PCS, HRS, KG, SET) for all line items. This data normalization is critical for macro-economic reporting and VAT reconciliation.

2.3 Identity Verification (TIN Integration)

We mandate the inclusion of both Seller and Buyer **Tax Identification Numbers (TIN)**. Our system performs a lookup against the FIRS national database to prevent identity fraud and ensure that tax credits are correctly attributed.

3. Security and Data Integrity

Data security is paramount in the 2026 e-invoicing framework. InvoiceApp.ng employs the following measures:

  • End-to-End Encryption: All data transmitted to NRS is encrypted using TLS 1.3.
  • Local-First Storage: For SMEs, data is stored locally in the browser's IndexedDB, providing offline resiliency, and synced to secure Nigerian data centers for Pro users.
  • Audit Trails: We maintain a 7-year immutable ledger of all transmitted invoices, fulfilling the statutory requirements for business record-keeping.

4. Impact on Nigerian SMEs

The transition to NRS-compliant e-invoicing is not just a regulatory requirement; it is a catalyst for Institutional Maturity. By using InvoiceApp.ng, SMEs can:

  • Reduce the cost of manual bookkeeping.
  • Ensure faster payments from corporate clients who require tax-compliant invoices.
  • Automate their monthly VAT and WHT filings via our integrated export tools.

Official Status

InvoiceApp.ng is currently in the accreditation phase with the NITDA/NRS technical committee. Our beta features are designed to exceed current 2026 proposed technical specifications.