SST on construction services: when do contractors charge 8%?

MORTAR · 6 min read

Contractor at a desk reviewing an invoice and tax paperwork with a calculator

Tax is the part of contracting most tradesmen would happily never think about — until a client queries a number or the authorities come asking. Service tax under Malaysia's SST regime now reaches many construction and renovation services, so it pays to understand the basics: whether you need to charge it, at what rate, and how to show it cleanly on an invoice.

This is a general guide, not tax advice. Rules and thresholds change — always confirm your position with RMCD (Kastam) or a licensed tax agent.

What is SST?

SST stands for Sales and Service Tax. The part that affects most contractors is the service tax — a tax on certain taxable services. In recent years the scope of taxable services was widened to include more construction and related work, and the standard service-tax rate was raised to 8% for most taxable services.

Close-up of an invoice showing a tax line beside a calculator and ringgit notes — When you're registered and the service is taxable, show SST as its own line.

Do you need to register?

You generally only charge service tax once you are registered for it, and registration is triggered when your taxable turnover crosses the threshold (commonly cited at RM500,000 over a 12-month period for the relevant services). Below the threshold you typically don't charge service tax — but you should still track your turnover so you know when you're approaching it. The exact treatment depends on the service and the latest rules, so verify your situation.

Contractor reviewing financial figures on a laptop in a site office — Track your taxable turnover so registration never sneaks up on you.

How to show SST on an invoice

If you are registered and the service is taxable, don't bury the tax in the total. Show it as its own line so the client sees the breakdown:

Subtotal (services): RM10,000.00
Service tax (8%): RM800.00
Total payable: RM10,800.00

Laying it out like this avoids the awkward conversation where a client thinks your price jumped. It also keeps your records clean for when you file. Note that some arrangements — such as certain business-to-business services — may have specific treatment, so again, check the current rules for your case.

Ringgit banknotes, a calculator and an invoice on a desk — Clear tax lines keep both your client and your records happy.

Don't forget e-Invoice

Separately from SST, Malaysia is rolling out mandatory e-Invoice through LHDN's MyInvois system, phased by turnover. Service tax and e-Invoice are different obligations, but they overlap on the same document — so it's worth getting your invoicing tidy now. We cover the rollout in our e-Invoice guide for contractors.

How MORTAR helps

MORTAR lets you switch SST on per quotation or invoice. When enabled, it calculates the tax to the sen and shows it as its own line on the PDF — so your documents are transparent and consistent. As e-Invoice support lands, the same clean invoice is ready to carry the fields MyInvois needs.

Want invoices that handle the tax line for you? Join the MORTAR early list and keep your paperwork clean.