MyInvois Portal
Manual entry
- Completely free to use (LHDN provided).
- Suitable for low-volume (e.g. fewer than 10 invoices/month).
- Requires manual double-entry from ERP to Portal.
- High human error risk and slower processing.
LHDN MyInvois compliance
- MDEC Status Certified
- MD Status certified
- HRD Claimable
Expert LHDN e-Invoicing Software & API Integration
Secure, high-volume MyInvois API integration services for Malaysian enterprises. Connect your custom ERP, retail POS networks, and legacy databases directly to the LHDN portal with absolute compliance.
Portal vs API integration
LHDN MyInvois Portal vs. Direct API Integration
Choosing the right submission method depends on your business volume and complexity. While the MyInvois Portal is free, Direct API Integration is the standard for operational efficiency.
Direct API Integration
Native middleware
- 100% automated. No manual data entry required.
- Invoices validated within your own ERP/POS in 1–2 seconds.
- Scale to thousands of transactions with zero staff overhead.
- Maintain your own private database of LHDN-signed UBL files.
The definition
What is Custom LHDN e-Invoice Integration?
The Malaysian Inland Revenue Board (LHDN) MyInvois mandate requires businesses to digitally validate transactions via API. While many businesses adopt basic plug-and-play portals, large-scale operations require Custom API Integration.
- Native system embedded
It connects directly into your existing SAP, Oracle, Microsoft Dynamics, or bespoke software. Invoices are generated and validated without staff leaving their primary software interface.
- Automated structuring
It programmatically maps your internal complex database schemas to the strict 55+ mandatory and optional fields required by the LHDN UBL 2.1 XML/JSON format.
- Security & encryption
Handles real-time OAuth 2.0 token generation and digital certificate (PKI) signing of every invoice payload milliseconds before transmission to LHDN servers.
Enterprise ERP
Data emission
API Middleware
Digital signing…
UBL 2.1 Ready
LHDN MyInvois
Gateway waiting… HTTP 200: Validated
Comprehensive Document Capabilities
We don't just send standard invoices. Our custom integration is engineered to handle the full spectrum of LHDN document types required across all Malaysian business models.
Standard Invoices
For B2B and B2G transactions requiring full buyer TIN and SST metadata routing.
Consolidated Invoices
Crucial for retail & POS. We aggregate high-volume B2C daily receipts into automated, monthly LHDN batch submissions.
Credit Notes (CN)
Automated negative value submissions linked via the original validated invoice UUID for seamless returns processing.
Debit Notes & Refunds
Full support for upward adjustments and refund documentation mapped to strict LHDN classification codes.
Platforms We Integrate With
Our e-Invoice SDK and custom middleware are designed to seamlessly bridge LHDN MyInvois with world-class enterprise systems.
SAP Microsoft Dynamics 365 Odoo Oracle Yonyou (用友) Infor Syspro Custom Built ERP Industry POS Systems Netsuite Sage 300 Epicor Zoho ERP IFS Cloud Workday Acumatica Ramco ERP Microsoft Dynamics NAV Pronto Xi Unit4 BlueLink ERP
Feature Ready-made Custom build
Data residency Third-party cloud Your local servers
Workflow disruption High (new portal) None (invisible)
Brand white-labeling No Yes, 100%
Complex taxation logic Standard only Fully supported
Monthly fees Per invoice / subscription Maintenance fee only
The Xantec advantage
Why Choose Custom over Ready-Made Middleware?
Many service providers offer ready-made portals (like our own simplified einvoice-online.my) intended for small businesses. However, custom integration is designed specifically for high-volume enterprises, manufacturing plants, and franchised retail chains.
When you opt for custom development, you retain 100% data privacy. Your sensitive financial data does not sit on a third-party SaaS provider's server; it travels encrypted directly from your private database to the LHDN portal.
Furthermore, custom solutions allow you to bypass ongoing transactional subscription fees. You own the bridge, ensuring compliance without incurring a "tax" on every invoice you generate as your business scales.
The Custom Deployment Process
We operate with the rigorous precision required for financial middleware. From isolated sandbox environments to zero-downtime cutovers.
01
Enterprise Systems Audit
We analyze your database schemas, internal taxonomy, and tax structures to map them against LHDN's strict JSON requirement parameters.
02
Middleware Development
We write the custom connectivity layer—be it an API wrapper in Node.js, C#, or Java, or an automated flat-file parsing service for legacy systems.
03
Sandbox Validation
Before touching live data, we execute high-volume simulated submissions to the LHDN SDK MyInvois Sandbox environment, refining error-handling algorithms.
04
Go-Live & Support
Smooth transition to production under LHDN SLA environments, accompanied by centralized dashboard logs within your ERP for easy monitoring.
Digital tax transformation
What is LHDN e-Invoicing?
In Malaysia, e-Invoicing is the structured digital representation of a transaction between a supplier and a buyer. Unlike a traditional PDF or paper invoice, an e-Invoice is a data-rich file (typically in XML or JSON format) that is automatically transmitted, received, and validated via the LHDN MyInvois Portal.
This transformation is mandatory for all businesses under the Finance Act 2023. It replaces the old, error-prone manual entry methods with a secure, real-time communication contract between your business systems and the tax authority. Every transaction is assigned a unique Visual Identifier (QR Code) and a Digital Signature, ensuring absolute transparency and compliance.
Beyond "just a PDF"
Many businesses mistake a digital PDF for an e-Invoice. A true LHDN-compliant e-Invoice contains 55 mandatory data fields, ranging from buyer TIN/BRN to specific SKU classifications, all validated in real-time.
The digital signature
Every validated invoice receives a Government Digital Signature. This tamper-proof certificate acts as the final legal proof of transaction, protecting both parties and the Inland Revenue Board.
Compliance roadmap
Malaysia's Mandatory Timeline
01
2024 – 2025 (Enterprise rollout)
Mandatory cycles completed for businesses with turnover exceeding RM25 Million. Enterprise-scale systems across Malaysia are now actively integrated with MyInvois.
02
July 1, 2025 (Total mandatory)
The final mandate for all other taxpayers, including SMEs and individual businesses. Every transaction must be validated via the LHDN SDK/Portal.
03
January 1, 2026 (The threshold exemption)
LHDN has officially set a RM1 Million Revenue Threshold. Businesses with annual revenue below this amount are now exempt from mandatory e-invoicing compliance.
Active rule: consolidation cap
Taxpayers are allowed to consolidate receipts (B2C) into monthly e-Invoices. However, any single transaction exceeding RM10,000 is strictly excluded from consolidation and requires a direct, individual e-Invoice issuance.
Relaxation period ends: December 31, 2026
Xantec bridge capabilities
The Ultimate e-Invoice Middleware
Our API Middleware acts as the "Brain" between your operations and LHDN, handling complex data translation so you don't have to.
No manual entry
Automate the extraction of invoice data from your ERP, POS, or legacy SQL database. Eliminate human error and repetitive tasks instantly.
Real-time validation
Every invoice is pre-validated against LHDN's 55-field metadata schema before submission, ensuring a 99.9% success rate and zero rejection penalties.
Bulk processing
Handle thousands of transactions simultaneously. Ideal for high-volume retail, wholesale, and service providers requiring consolidated invoicing.
Authority & trust
Why Xantec for API Integration?
MDEC Status & Malaysia Digital (MD) Status Certified
Custom-first engineering
We don't sell "one-size-fits-all" plugins. We engineer custom API bridges specifically for your unique database structure and business logic.
1-week enterprise go-live
Our pre-built core middleware architecture allows us to deploy fully compliant LHDN integrations in record time, including Sandbox testing.
SLA-backed reliability
We provide 99.9% server uptime guarantees for our middleware cloud nodes, ensuring your business never stops due to connection failures.
0%
Accurate LHDN compliance
0%
Middleware uptime
Government grants & pricing
e-Invoicing Implementation Pricing & Subsidies
At Xantec, we understand that enterprise-grade API integration is a significant investment. As an MDEC Status and MD Status certified company, we ensure our solutions are eligible for various Malaysian government digitalization incentives.
Whether you are a manufacturing conglomerate or a high-volume retail chain, our pricing structure is designed to be transparent and ROI-driven.
MSME Digital Grant MADANI
SME-eligible matching grants available for our MyInvois API integration solutions.
HRD Claimable Training
Our middleware onboarding and compliance training sessions are HRD Claimable for eligible companies.
Frequently Asked Questions
What is custom LHDN e-Invoice API integration?
It is a bespoke middleware or direct code integration that connects your existing enterprise resource planning (ERP) or Point of Sale (POS) system directly to the LHDN MyInvois portal, automating the validation of invoices without manual data entry.
How does custom integration differ from off-the-shelf middleware?
Unlike ready-made middleware that forces you to change your workflow to fit their portal, a custom integration is built natively into your system. It supports complex manufacturing rules, multi-branch POS consolidated invoicing, maintains data privacy on-premise if required, and requires no monthly third-party subscription.
Can you integrate older legacy systems with LHDN?
Yes. If your AS400, older Oracle database, or legacy custom software cannot handle modern REST APIs, we design a custom flat-file bridge. This bridge securely reads your scheduled data exports (CSV/XML), converts them to the LHDN UBL format, signs them with your digital certificate, and submits them automatically.
Do you handle the digital certificate (PKI) signing?
Absolutely. Our custom middleware manages the entire encryption payload. We securely store and utilize your LHDN-issued digital certificate to sign every invoice payload in real-time before it hits the MyInvois servers, ensuring strict compliance with non-repudiation laws.
How do you handle API submission errors or rejected invoices?
Our custom integrations include robust state-management and retry queues. If an invoice is rejected by LHDN (e.g., due to an invalid buyer TIN), it is flagged immediately within your own ERP's dashboard or via email notification with the exact API error translated into human-readable instructions.
Explore Related Services
Ready for Enterprise Compliance?
Avoid workflow disruptions and third-party SaaS fees. Discuss your unique integration architecture with our middleware engineering team today.