October 3, 2025
Malaysia’s e-Invoicing mandate, effective August 2025, replaces traditional receipts with validated e-Invoices. This transformation changes how transactions are recorded, shared, and reported to LHDN.
At iDCP Systems, we make the transition seamless- from retail POS counters generating e-Invoices in seconds to automated ERP and API integration with LHDN’s MyInvois Portal.
Based on our work with retailers and distributors, we’ve compiled 50 FAQs from both customer and business perspectives. These cover real-world issues like compliance timelines, POS operations, consignment transactions, credit notes, and ERP integration.
You only need to request an e-Invoice if your purchase is related to income tax claims or will be used as a business expense. For personal shopping, a normal receipt is sufficient and works as your record.
Simply inform the cashier during checkout that you would like an e-Invoice. You’ll need to provide details such as your name, email, phone number, and Tax Identification Number (TIN). For businesses, additional information like your Business Registration Number (BRN) or SST Registration Number may also be required.
You can retrieve your TIN online through the MyTax portal. Alternatively, you may call the HASiL Care Line at +603-8911 1000 or +603-8911 1100 if calling from overseas.
Individual TINs use the prefix IG, followed by a numeric sequence with up to 14 characters. Examples include IG56003500070, IG4040080091, and IG115002000. Always provide the complete number including the prefix.
A receipt is mainly for your own reference, while an e-Invoice is validated by LHDN and includes a Unique Identifier Number (UIN) and QR code. With iDCP POS System, both documents are generated automatically, ensuring that customers enjoy convenience while businesses stay compliant.
Every validated e-Invoice contains a QR code printed on the receipt. By scanning the code with your mobile device, you’ll be directed to the official LHDNM MyInvois portal, where you can confirm the authenticity and accuracy of the invoice.
If you notice errors such as wrong price, quantity, or buyer details, report it to the store or retailer’s HQ immediately. They can cancel and reissue the invoice within 72 hours, or issue a debit note, credit note, or refund note if the timeframe has passed.
Validation usually happens in near real-time, often in less than two seconds. Once the cashier completes the sale, the system sends details to LHDN’s MyInvois platform, which returns a validated invoice with a Unique Identifier Number (UIN) and QR code almost instantly. Refer to LHDN e-Invoice Guideline Version 4.5.
No, customers cannot edit e-Invoices themselves. If there’s a mistake, the retailer must cancel and reissue it within 72 hours, or use credit/debit/refund notes if the deadline has passed. This ensures proper audit trails and compliance with LHDN rules.
At retail outlets using iDCP POS System, the e-Invoice QR code is printed directly on the receipt. Customers can scan the code to instantly access the validated invoice online, making it simple to store, share, or download for tax or business purposes.
Yes, e-Invoices are recognized as official proof of purchase. They can be used for returns, exchanges, or warranty claims just like a receipt, but with the added benefit of LHDN validation.
If you lose your e-Invoice, you can always request another copy from the retailer. Since iDCP POS System securely stores every validated invoice, the business can quickly resend or reprint it without complications.
No, customers still earn loyalty points and enjoy promotions as usual. The e-Invoice process only affects how transactions are validated and reported to LHDN, not the rewards or benefits you receive.
When shopping online, you can request an e-Invoice directly from the seller’s platform. After providing your tax details, the e-Invoice will be validated and delivered to your email with a QR code from LHDN.
You may request an e-Invoice from your supplier within the same month of the purchase. For example, a transaction on 15 September can be requested until 30 September, but invoices from previous months cannot be backdated.
Most e-Invoices are validated in seconds by LHDN and delivered almost instantly. Customers usually receive their invoice right at checkout, without any delay to the shopping experience.
Yes, only essential information like your name, TIN, or email is included in e-Invoices. With iDCP ERP System, all data is encrypted and transmitted securely to LHDN, ensuring your privacy is protected.
All businesses and individuals engaged in commercial activities are required to comply. This includes companies, partnerships, LLPs, co-operatives, trusts, associations, and even representative or branch offices operating in Malaysia.
The rollout is based on annual revenue:
From 2026 onwards, all businesses regardless of size must comply.
Invoices must be submitted either at the point of transaction or within 24 hours at the latest. With iDCP ERP System, businesses don’t have to worry—our system ensures automatic submission even during downtime.
POS systems must capture the required transaction data and submit it to LHDN for validation, either individually (B2B) or as part of a consolidated batch (B2C Simplified). iDCP POS comes with built-in e-Invoice compliance, ensuring retailers don’t need separate middleware to stay aligned with the mandate.
Failure to submit e-Invoices on time may result in fines, additional audits, or even legal penalties. By automating submissions through ERP, businesses reduce risks of delays, human errors, and costly non-compliance.
Credit notes must always be linked to their original validated invoice. With iDCP ERP, these documents are generated automatically, ensuring stock levels, financial records, and tax reporting remain accurate without manual rework.
Debit notes must also be validated through MyInvois and linked to the original invoice. iDCP ERP supports quick issuance of debit notes, allowing businesses to correct undercharges while keeping audit trails clear and compliant.
While e-Invoices must be reported in MYR, businesses can include foreign currency references in the payload. iDCP ERP handles automatic conversion and recording, ensuring both compliance and transparency in cross-border transactions.
In self-billing scenarios, the buyer issues the invoice instead of the supplier. iDCP ERP supports self-billed invoices seamlessly, which is particularly useful in wholesale and distribution where complex trade terms are common.
Sales between related entities must still be documented with e-Invoices. iDCP e-Invoice ERP automates issuance and reconciliation, reducing manual effort while ensuring each transaction is properly validated by LHDN.
Generally, stock transfers that are not considered taxable supplies do not require e-Invoices. However, if the transfer involves charges or is treated as a supply, an e-Invoice must be issued. iDCP ERP helps businesses distinguish between these scenarios automatically.
Yes. With iDCP e-Invoice’s API middleware, businesses can prioritize invoices requiring immediate submission, such as imported goods with K1 forms or service invoices, while deferring those without K1. This provides compliance flexibility without slowing operations.
For imported goods, invoices must include details such as K1 forms where applicable. For exports, customs-compliant invoices are required alongside MyInvois validation. iDCP ERP ensures both local compliance and cross-border reporting are fully aligned.
Yes. Customers can request individual e-Invoices even during peak hours. iDCP POS allows cashiers to generate them instantly without slowing down the checkout process.
Peak hours can cause system slowdowns if invoices are processed one by one. iDCP POS system ensuring customers are served quickly while compliance is maintained.
Yes. If the internet goes down, transactions can still be recorded offline. Once the connection is restored, iDCP ERP auto-uploads invoices to LHDN, keeping retailers compliant without service interruptions.
Each outlet can issue and validate invoices independently, but all submissions are consolidated at headquarters. iDCP ERP provides real-time visibility across outlets, giving HQ full control over compliance and reporting.
Yes. Retailers may still provide traditional receipts for customer records, while e-Invoices are submitted to LHDN in the background. iDCP ERP ensures both documents are consistent and properly linked.
When customers split payments, separate invoices must be generated for each payer. iDCP ERP makes this simple by allowing cashiers to divide amounts and generate the correct invoices instantly.
Walk-in customers are usually grouped under consolidated e-Invoices, while account customers receive individual invoices. iDCP ERP applies these rules automatically based on the transaction type, reducing errors.
For non-Malaysian buyers without a Tax Identification Number, retailers can still issue e-Invoices by using the placeholder code “EI00000000020.” iDCP ERP applies this automatically to ensure invoices remain valid under LHDN rules.
Yes. Loyalty rewards, discounts, and promotions remain unaffected by e-Invoicing. iDCP ERP ensures these benefits are reflected correctly without disrupting compliance.
Returned items must be processed with a credit note linked to the original invoice. iDCP ERP generates and validates this automatically, adjusting both stock and accounts at the same time.
For imported goods, the K1 form must be linked to the e-Invoice. iDCP e-invoice middleware ensures invoices with K1 get prioritized in submission, so customs clearance and LHDN validation happen without delays.
If no K1 is available, the invoice can still be generated but marked as pending customs reference. iDCP ERP allows these invoices to be submitted later, after priority K1 invoices are cleared.
Yes. iDCP middleware provides flexible submission control. Companies can prioritize invoices with K1 and service-related transactions, while holding less urgent ones (like non-K1 goods) for later submission.
In cases where businesses issue self-billed invoices on behalf of suppliers, iDCP ERP generates them automatically, validates with LHDN, and keeps both buyer and supplier compliant without manual double entry.
Consolidated e-Invoices simplify high-volume B2C sales, such as daily store transactions. iDCP ERP groups them into one submission, reducing administrative load while still meeting LHDN requirements.
Yes. Debit and credit notes are fully supported. iDCP ERP automatically links them to the original invoice, ensuring adjustments flow correctly into accounting, stock, and LHDN records.
When a transaction is cancelled, a reversal must be issued to nullify the original invoice. iDCP ERP automates this process, ensuring no mismatch exists between your ERP and LHDN’s records.
Yes. Service invoices, such as consultancy or maintenance, can be given priority in submission. iDCP middleware lets businesses set rules, ensuring critical transactions are validated first.
For exports, invoices are still submitted to LHDN, but they include specific export details instead of local TIN. iDCP ERP handles these requirements automatically, keeping both customs and LHDN records aligned.
Mismatches often cause compliance issues. With iDCP ERP, stock movement, purchase invoices, and sales invoices are synchronized in real time.
The move to e-Invoicing may feel overwhelming, but with the right system, it becomes an opportunity. At iDCP Systems, we ensure retailers, distributors, and customers experience smooth, compliant, and transparent processes.
Whether it’s real-time POS validation, consignment billing, or automated credit notes, our ERP keeps businesses compliant and customers satisfied.
Need help preparing your business for Malaysia’s e-Invoicing? Talk to our team today — we’ll make compliance simple.
Chat with sales at 012-9379260 to enquire more or request a demo!
iDCP Systems Sdn Bhd is a Malaysia Digital (MD)-status technology company that develops cloud-based ERP and e-Invoicing solutions for retailers and distributors. iDCP is officially recognized as both a Peppol Registered Service Provider (PRSP) and an LHDN-accredited Solution Provider (SP), enabling businesses to issue, validate, and manage compliant e-Invoices through seamless system integration with MyInvois.
iDCP provides complete e-Invoicing implementation and integration services, including:
iDCP’s API Integration Services let businesses send high volumes of e-Invoices directly to LHDN’s MyInvois System. As a PRSP and SP, iDCP supports:
As a certified PRSP and SP, IDCP ensures compliance by:
The onboarding process with IDCP typically includes:
iDCP’s e-Invoicing system is designed for real Malaysian retailers and distributors, including:
Whether you operate in B2B, B2C, or B2B2C channels, IDCP’s ERP and e-Invoicing solutions ensure smooth compliance and efficient operations.
As both a PRSP and SP, iDCP provides:
iDCP Systems
iDCP Systems offers a full suite of cloud solutions tailored for distribution and retail businesses. Our offerings- from our core ERP platform to our advanced POS system, powerful mobile app, and specialized solution add-ons- help companies digitalize operations and manage multi-channel sales to scale with confidence.
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iDCP Systems Sdn. Bhd. (1404983-K)
iDCP Systems
is a Malaysia Digital Status company with dual
accreditation from MDEC for e-invoice solutions. The cloud ERP, ERP mobile apps, POS system and specialized add-ons from iDCP are trusted by 6,000+ users across Southeast Asia to digitalize operations and scale with confidence.
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