SSIC Code Selection for Singapore Companies: Practical Founder Guide

How to think about SSIC selection

Start with the commercial model, not the code list. Ask what the company sells, who pays the company, where the work is performed, whether goods or services are involved, whether the company holds inventory, whether it acts as agent or principal, and whether the activity is regulated. Only after answering those questions should you choose the closest SSIC code.

For example, a company that provides business management advice is different from a company that trades goods, operates an online marketplace, owns investments, develops software or provides employment agency services. The words may overlap in casual conversation, but the compliance profile can be very different.

Primary versus secondary activity

The primary SSIC should represent the main business activity. If the company has another meaningful activity, a secondary SSIC can be selected. Founders sometimes use the secondary code to cover speculative future plans, but that may make the company look unfocused or higher risk during bank review.

If a company truly has two activities, the accounting system should be able to track revenue and expenses by activity where useful. For example, consulting revenue and product trading revenue may have different GST, margin, documentation and inventory implications. The SSIC choice should match how the business is actually run.

Licensing and bank KYC considerations

Some SSIC choices may suggest regulated activity. Banks may ask whether the company has licences or approvals, even if the founder selected the code casually. Sensitive words such as finance, investment, fund, payment, employment, education, healthcare, construction or travel can invite additional questions.

The company should be ready to explain its activity consistently in the CSP onboarding file, bank application, website, invoices and tax records. If the company says it provides consulting but receives funds for unrelated trading or investment activity, the mismatch can create compliance questions.

Tax and accounting impact

SSIC itself does not decide tax treatment, but it influences how the company’s activities are understood. A trading company may need inventory records, import documents, platform settlement reconciliation and GST threshold monitoring. A service company may need contracts, timesheets, management fee support and withholding tax review for overseas payments. A holding company may need dividend, interest, capital gain and foreign-sourced income analysis.

Choosing an accurate SSIC helps the accountant build the right chart of accounts and record-keeping process from day one. It also helps avoid filing a tax return that describes a company different from the one shown in ACRA records.

When to change SSIC after incorporation

A company should review SSIC when it pivots, adds a substantial revenue stream, applies for a licence, changes bank account purpose, registers for GST or prepares annual compliance records. Updating the activity is not just clerical; it should be supported by the actual business model and internal approval where appropriate.

Do not update SSIC simply to look more attractive to a bank or customer. The code should follow the real activity. If the activity changed, update the code and make sure the website, invoices, contracts, accounting records and tax treatment are updated too.

The review should involve the secretary and accountant together. The secretary can update the ACRA record where appropriate. The accountant can confirm whether revenue, cost of sales, inventory, GST and tax schedules match the activity. That coordination prevents the company from presenting one business model to ACRA and another to IRAS or the bank.

SSIC should be reviewed before Annual Return filing, especially for companies that were incorporated quickly and later refined their business model. The director should ask whether the primary activity still describes the main revenue stream and whether the secondary activity is still relevant. If the company became dormant, changed from service to trading, or began overseas operations, the old code may no longer tell the right story.

SSIC review before Annual Return

Another shortcut is using one company for several unrelated activities without reviewing whether the structure still makes sense. A company that starts as consulting, then adds trading, investment holding and employment-related services may create accounting, GST, licensing and bank complications. In that case, updating SSIC may not be enough; the founder may need to consider separate business lines, clearer contracts or even a separate entity.

Founders often choose SSIC codes by copying another company, searching for the most general phrase or selecting a code that sounds more prestigious than the real activity. These shortcuts can backfire. The right code should be based on the revenue model and operational facts, not on what sounds safest or most impressive.

Common founder shortcuts to avoid

Frequently asked questions

Official sources

• ACRA — Finding the right SSIC code
• ACRA — Registering a local company via Bizfile
• Bizfile — Entity registration instructions
• IRAS — Record keeping requirements

Continue with related guidance

• Company name and activity guide
• GST registration threshold guide
• Singapore trading company setup
• Incorporation service

Written and reviewed by Martin, CA Singapore

Martin is the founder of ProSec Pte. Ltd. and a Chartered Accountant of Singapore. He reviews ProSec guides for practical consistency with Singapore company, accounting and tax requirements.