(TAX UPDATE) Check Your Business Registration Number (BRN) Before 1 August 2026 or Your E-Invoice May Fail Validation

Introduction

You issue an e-Invoice to a good customer. Everything looks correct. You click submit.

Then it comes back: Validation Failed.

No clean submission, no smooth billing, and a customer who now cannot process your invoice on their side. All because of a number you have not looked at in years, your Business Registration Number (BRN).

This is the risk many SSM registered companies will face from 1 August 2026 if they do not act now.

What is changing on 1 August 2026

From 1 August 2026, LHDN will tighten how the MyInvois system checks taxpayers. When an e-Invoice is submitted, the system validates the Taxpayer Identification Number (TIN) and the BRN together as a pair, through the Validate Taxpayer's TIN API.

In plain terms, your TIN and your BRN must match what HASiL holds in its records. If the BRN in your HASiL record is still the old format, the pair will not match, and the e-Invoice can fail validation.

The TIN itself has not changed. The check has simply become stricter.

Why this hits SSM registered companies

If your company is registered with SSM, whether a Sdn Bhd, an Enterprise, or an LLP, your current BRN is the 12 digit format, for example 202501234567.

The first four digits are the year of registration, the next two are the entity type, and the last six are the running number. If your number still looks like the old pre 2019 format, that is the one to update.

Many companies still carry the old registration number in three places at once: in HASiL records, in their own accounting or ERP system, and in their customers' master data. Any one of these being outdated can trigger a validation failure.

This is not only about your own company. If your customer or supplier is still using your old BRN, or you are still using theirs, the transaction can fail on either side. One outdated number can stall an invoice for both parties.

Note that entities registered under other bodies, for example societies under ROS, use different formats. If you are not SSM registered, check the format issued by your own registrar.

Whose responsibility is this

LHDN has made clear that keeping the BRN updated is the taxpayer's own responsibility. HASiL will not clean up your master data for you.

So the work sits with you, and it is worth doing early.

What you should do now

Check your BRN in MyTax and the MyInvois Portal. Confirm whether the number shown is the new 12 digit format or the old one.

If it is outdated, update it. You can update through e-Kemaskini in the MyTax Portal, or submit the HASiL Customer Feedback Form under Application then Update Taxpayer Details, or email myinvois@hasil.gov.my with a copy of your registration certificate.

Clean your own master data. Update the BRN stored in your accounting or ERP system so your outgoing e-Invoices carry the correct number.

Remind your customers and suppliers to check theirs too. A short message now saves a blocked invoice later.

Do this sooner rather than later. As the deadline approaches, a rush of last minute applications could slow processing for everyone.

KTP's View

E-Invoice problems are rarely about the invoice. They are almost always about master data that no one has cleaned since the day it was first keyed in.

The BRN update is a small housekeeping task with a large downside if ignored. A blocked e-Invoice is not just a technical error. It delays your billing, frustrates your customer, and lands on your finance team at the worst possible time, usually month end.

Treat 1 August 2026 as a soft deadline you want to be well ahead of, not a date you scramble to meet. Check your BRN this week. Fix it if it is wrong. Then send one short reminder to the customers and suppliers you trade with most.

Ten minutes now can save a stalled invoice later.

This article is general information for education, not advice on any specific taxpayer's situation. It was prepared and reviewed by KTP before publishing. For advice on your own position, please speak to your tax agent.

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