ONE year after Malaysia expanded the scope of the sales and service tax (SST), the biggest lesson may have little to do with tax rates or legislation.
The challenge has been to translate tax policy into business reality. Businesses have had to revisit contracts, reconfigure systems, reassess pricing structures and navigate new compliance obligations, while managing digital transformation initiatives such as e-invoicing.
As policymakers consider the next phase of indirect tax administration and businesses prepare for Budget 2027, the experience of the past year offers important lessons on what worked, what proved more challenging and where the focus should now shift.
One key lesson from the past year is that SST cannot be managed solely by the tax or finance function.
A single contract may include multiple elements such as the principal service, reimbursements, equipment usage, support services and subcontractor costs.
Each component may require a separate SST assessment. Existing agreements also had to be reviewed to determine whether prices were tax-inclusive or tax-exclusive, and who would ultimately bear the tax cost.
Few sectors illustrate the complexity more clearly than construction, where businesses have had to navigate ongoing projects, progress billings, variation orders, transitional provisions, non-reviewable contracts and business-to-business exemptions. The broader lesson is clear: SST considerations should be addressed when a transaction is being structured and documented, not only when an invoice is issued.
Greater clarity, but continued vigilance
The past year also saw a steady stream of legislation, policies, guides and frequently asked questions issued by the Royal Malaysian Customs Department (RMCD).
This was inevitable. A broader tax scope naturally gives rise to new fact patterns, industry-specific scenarios and interpretational issues requiring clarification.
While these developments have helped provide greater certainty, they have also reinforced an important reality – that SST compliance is not a one-off exercise.
Businesses must continuously monitor legislative and administrative developments and assess whether their existing tax treatments remain appropriate.
As the SST framework matures, continued engagement between the RMCD and industry will remain essential. Clear and timely guidance helps businesses comply with greater confidence and reduces unnecessary disputes.
The first year focused largely on registration, system configuration and immediate compliance. The next phase should focus on verification and regularisation.
Businesses should consider undertaking periodic SST reviews covering revenue streams, exemptions, imported taxable services, invoices, tax returns and related-party transactions.
Attention should be given to areas involving manual processes or judgement calls. Where genuine errors are identified, voluntary disclosure provides an opportunity for businesses to regularise their position proactively rather than waiting for an audit.
In this regard, the RMCD’s Compliance Verification Audit Programme (AViP) represents an important development in encouraging taxpayers to review and correct errors voluntarily. If implemented consistently, such initiatives can support a stronger culture of voluntary compliance while helping businesses address issues before they become more significant.
The objective is not merely to identify underpayments but to encourage businesses to strengthen their compliance frameworks before issues become more significant. Voluntary disclosure should therefore be viewed not only as a mechanism for reducing potential penalties, but also as an opportunity to improve internal controls and governance.
Perhaps the most significant development since the SST expansion is Malaysia’s e-invoicing initiative. As e-invoicing adoption expands, tax authorities will have greater visibility of commercial transactions and improve data integrity, while businesses will gain access to more timely compliance information and controls.
However, technology is only as effective as the underlying tax determination. If a transaction is incorrectly classified at the outset, automation may simply replicate the error on a larger scale.
The next phase of compliance should therefore focus on integrating tax governance with digitalisation.
Technology should make compliance easier for compliant businesses, while allowing the authorities to focus their resources on higher-risk transactions and deliberate non-compliance.
The priority for Budget 2027
The first year of the SST expansion has shown that tax reform does not end on its implementation date. Successful reform depends on clear rules, timely guidance, effective administration and strong collaboration between the authorities and businesses.
As discussions surrounding Budget 2027 gather pace, the focus should be less on introducing additional complexity and more on strengthening the effectiveness of the existing framework.
The central lesson from the past year is straightforward: sustainable revenue collection and a competitive business environment are not mutually exclusive. Clear and consistent rules, coupled with efficient digital administration and a proportionate compliance framework, can help strengthen taxpayers’ confidence while supporting the overall effectiveness of the tax system.
One lesson stands out from the first year of the SST expansion: businesses can adapt to change, provided they have sufficient clarity and time to prepare.
As future tax reforms are considered, a predictable and well-supported implementation approach will be just as important as the policy itself in achieving sustainable compliance and long-term revenue goals.
Jalbir Singh Riar is a partner of indirect tax at Ernst & Young Tax Consultants Sdn Bhd. The views expressed here are the writer’s own.
