e-Invoicing in Malaysia has been implemented in phases by the Inland Revenue Board of Malaysia (IRBM) since August 2024. Taxpayers undertaking commercial activities must comply according to the applicable implementation timeline, unless they qualify for an exemption.The rollout is phased, based on annual revenue thresholds, to allow businesses to gradually adapt. Taxpayers required to implement e-Invoice must issue e-Invoices for B2B, B2C, and B2G transactions through the MyInvois system, subject to the applicable exemptions and transaction-specific rules.Key TakeawaysTaxpayers required to implement e-Invoice must issue e-Invoices for B2B, B2C, and B2G transactions, including applicable self-billed e-Invoices for cross-border transactions. Taxpayers with annual turnover or revenue below RM3 million may qualify for exemption, subject to IRBM’s eligibility criteria.Malaysia’s e-Invoice implementation timeline is based on annual turnover or revenue: more than RM100 million from August 2024, more than RM25 million and up to RM100 million from January 2025, more than RM5 million and up to RM25 million from July 2025, and up to RM5 million from January 2026, subject to applicable exemptions.IRBM validates invoices in real-time, generating Unique Identification Numbers (UIN) and QR codes, with 72-hour windows for rejection or cancellation.For taxpayers required to issue e-Invoices, a separate e-Invoice is required for each transaction exceeding RM10,000 from 1 January 2026. Such transactions cannot be included in a consolidated e-Invoice.Non-compliance may lead to fines up to RM20,000 or 6 months' imprisonment under tax law.What is an e-Invoice?An e-invoice, or electronic invoice, is a structured electronic document of a commercial transaction between a seller (supplier) and a purchaser (buyer), in a predefined format (such as XML or JSON), that goes through the IRBM portal in real time for validation and recordkeeping.What are the requirements for e-invoicing in Malaysia?e-Invoices must be generated for B2B, B2C, and B2G transactions in UBL 2.1 format (XML or JSON)e-Invoices can be generated and submitted either manually via the MyInvois Portal or automatically through direct API integration.Each e-invoice must include 55 specific data fields, covering seller and buyer details, transaction items, quantities, prices, taxes, totals, and payment information.All e-invoices must be digitally signed using a Digital Certificate issued by IRBM.e-Invoicing Malaysia Implementation Timeline & DeadlinesBelow is Malaysia’s e-Invoice implementation timeline, based on annual turnover or revenue and the applicable relaxation periods, as per IRBM’s e-Invoice Guideline Version 4.8 issued on 30 August 2026 and the General FAQs updated on 4 September 2026.PhasesImplementation DateTargeted Taxpayers (Annual Turnover)End of Relaxation PeriodPhase 11 August 2024> RM100 million31 January 2025Phase 21 January 2025RM25 Million to RM100 Million30 June 2025Phase 31 July 2025RM5 Million to RM25 Million31 December 2025Phase 41 January 2026Taxpayers with annual turnover or revenue of up to RM5 million, subject to the MSME exemption criteria31 December 2027Taxpayers undertaking commercial activities in Malaysia must comply with e-Invoice according to the applicable implementation timeline, unless they qualify for an exemption.