The e-Invoice Relaxation Period Ends 31 December 2026 — What Phase 4 SMEs Should Do Now

If your business turns over between RM 1 million and RM 5 million a year, you were brought into the LHDN MyInvois mandate on 1 January 2026 as part of Phase 4. LHDN granted a 12-month relaxation period that runs through 31 December 2026, and full penalties apply from 1 January 2027.

That deadline is closer than it looks. Integration work is not the slow part — deciding what to change, and getting your team comfortable with it, is.

What the relaxation period actually means

The relaxation period is not an exemption. Phase 4 businesses are already required to issue e-Invoices. What LHDN granted is a window during which the focus is on helping businesses comply rather than on enforcement.

Two things follow from that:

1. 1You are expected to be issuing e-Invoices now, not starting in December.
2. 2The window is the cheapest time to get things wrong. Fixing a field-mapping problem in October is an inconvenience. Fixing it in February is a compliance issue.

The three questions to answer first

Before anyone talks to you about software, you should be able to answer these.

1. How do you actually raise an invoice today?

Not the official process — the real one. Who types it, into what, and what happens next. Most SMEs we speak to have at least one step that lives in someone's head or in a WhatsApp thread. That step is usually where e-Invoice integration breaks.

2. How many invoices do you issue per month?

This single number decides your whole approach. At low volume, keying invoices into the MyInvois portal by hand is genuinely workable. At higher volume it becomes a fixed daily cost and a reliable source of typos — and that is the point where connecting your existing system pays for itself.

3. What system already holds the data?

Accounting software, a POS, an ERP, or something built in-house. You almost certainly do not need to replace it. Most of the accounting packages common in Malaysia can be connected to the MyInvois API through an integration layer, so invoices flow from where they already live.

What usually goes wrong

From the integrations we have done, the same handful of problems come up:

• Missing or mismatched tax identification numbers. Your buyer records need a TIN, and plenty of existing customer databases do not have one.
• Classification codes. Every line needs the right code. Getting this wrong is the most common cause of rejection.
• Rejections that nobody sees. If a submission fails and the error only exists in an API log, staff will keep invoicing as though everything is fine. Whatever you build must surface failures to a human.
• Consolidated invoices for retail and F&B. Counter receipts are handled differently from standard B2B invoices, and the rules are easy to misread.

A realistic plan for the rest of 2026

You do not need to solve everything at once.

1. 1Confirm your phase. Check your turnover band against LHDN's current guidance rather than assuming.
2. 2Clean your customer data. Chase missing TINs now. This is unglamorous, needs no software, and is the single most common blocker.
3. 3Test in the sandbox. LHDN provides a sandbox environment. Prove your fields validate there before touching live invoices.
4. 4Run one real cycle before December. Issue a full month of live e-Invoices while the relaxation period still protects you.
5. 5Write down who fixes rejections. A named person, not a team.

If you are under RM 1 million

Businesses below RM 1 million in annual turnover are currently exempt — the exemption floor was raised from RM 500,000 to RM 1 million on 6 December 2025, and the planned sub-RM 1 million phase was cancelled.

That is not a reason to ignore it entirely. If you sell to larger companies, they may ask you for e-Invoices regardless of your own obligation, simply because it makes their reconciliation easier.

Where to get the facts

Thresholds, timelines and penalties are set by LHDN and can change. This article reflects publicly available information as of July 2026. Always confirm your own obligations at the official MyInvois portal or directly with LHDN before making decisions.

If you would like help working out where you stand, [take a free digital checkup →](/digital-checkup) and tell us how you invoice today. We will tell you what needs to change and roughly what it involves — no sales pressure.