LHDN’s e-invoicing mandate is not a future project. It is already live, phased, and enforced through the MyInvois system. Since the rollout began in August 2024, more than 64.5 million e-invoices had been submitted into MyInvois as of November 2024. The mandate covers B2B, B2C, and B2G transactions. Each validated e-invoice must include up to 55 specific data fields, be digitally signed using a Digital Certificate issued by IRBM, and be submitted in real time through the MyInvois portal or via API. For SMEs, the shift is less about “getting software” and more about building a repeatable process that produces valid, complete data every time.
For Malaysia E-Invoicing Phase 4, the scope is tied to turnover. Phase 4 applies to businesses with annual turnover between RM1 million and RM5 million, and it goes live from 1 January 2026. The exemption threshold was increased from RM500,000 to RM1,000,000 effective 1 January 2026, and businesses with annual turnover below RM1,000,000 are exempt. The exemption is not automatic, because LHDN MSME criteria apply. Your phase is determined using audited financial statements or tax returns for the relevant Year of Assessment, and one reference point used is FY2022 records. If you exceed RM1,000,000 in a later year, you must comply from the second year after you cross that threshold.
What Changes on 1 January 2026 for SME Invoicing Workflows
From 1 January 2026, a key rule tightens day-to-day invoicing: individual e-invoices are mandatory for transactions above RM10,000, and consolidated invoices are no longer permitted for those amounts. SMEs should plan for this early because it affects how teams handle larger-value sales, project billing, and high-ticket items. Non-compliance also has explicit consequences. Failure to issue a valid e-invoice is an offence under Section 120(1)(d) of the Income Tax Act 1967. Each non-compliant invoice is a separate offence, carrying a fine between RM200 and RM20,000 per instance, or imprisonment of up to 6 months, or both.
SMEs in Phase 4 also need to choose how they will submit invoices to MyInvois. There are three paths: the MyInvois Portal (free and manual, suited to low volume), integrated accounting software with built-in submission, or direct API integration for high-volume businesses or custom ERP needs. Regardless of the path, the operational checklist is similar: register on MyInvois, confirm your phase and turnover threshold, make sure your invoices can populate the required 55 data fields, and set up the IRBM digital signing certificate. Staff also need training on rejection and cancellation workflows, including the 72-hour window referenced in guidance, because real-time validation can create new “stop points” if data is incomplete.
Finally, plan around the relaxation period without treating it as a reason to delay. Sources describe a relaxation period for businesses in each phase, framed as immunity from penalties for non-compliance. For Phase 4 specifically, one set of guidance describes the relaxation period as extended to 31 December 2027, while another describes it as extended until 31 December 2026. SMEs should verify which relaxation-period end date applies to their circumstances using the latest LHDN guidance and their own turnover records. Either way, early readiness is still the safer operational choice because Phase 4 can affect invoice issuance, approvals, and accounting controls across B2B, B2C, and B2G transactions.
Who must comply under Malaysia’s e-invoicing Phase 4?
What is the new exemption threshold from 1 January 2026?
What happens if an SME does not issue a valid e-invoice?
What is the RM10,000 rule starting in 2026?
What are the main ways SMEs can submit invoices to MyInvois?
