SST at six per cent sits on top of the valuation, not inside it

From 1 July 2025, Sales and Service Tax applies to construction work services at six per cent. For the quantity surveyor this is a discipline about order of operations. The valuation measures and prices the work, and that is a net figure. Service tax is then applied to that net figure as a separate line. The two never belong in the same number, and a claim that mixes them is a claim that cannot be reconciled later.

What the tax applies to

Service tax at six per cent attaches to construction work services. There are two points every surveyor working in Malaysia should hold clearly.

• Residential construction is excluded. Building work on residential property does not carry the service tax, so a residential valuation is net with no SST added.
• B2B relief is available. Business to business relief exists so that service tax is not stacked repeatedly down a chain of registered contractors and subcontractors.

That is the extent of what the data supports, and it is enough to get the classification right on most jobs: identify whether the work is residential, and whether the parties can claim the B2B relief, before deciding what tax the claim carries.

Net first, tax second

The certified value of the works, measured works plus variations plus materials, less previous payments and retention, is a net figure. Service tax at six per cent is calculated on that net certified value where it applies, and shown as its own line. The payment claim therefore reads as a net total, then SST, then a gross total. Keeping the tax separate means the retention, the variations and the previous certificates all reconcile on the net figures, which is where the contractual arguments actually happen.

Why the separation earns its keep

Because the payer responds to the claim within ten working days, and a dispute about value should never be tangled with a question about tax. If the certified value and the tax sit in one blended figure, the payer cannot admit the value while querying the tax treatment, and a simple classification point becomes a dispute over the whole sum. Split them, and each can be admitted or questioned on its own footing.

Classify the work, decide whether SST applies, value net, and add the tax as a line of its own. On residential work, add nothing. That is the whole of it, done in the right order.