Starting a small business in Singapore is more straightforward, administratively, than most people expect — ACRA registration itself can take under an hour online. The harder parts are the decisions before you register and the work after: picking the right structure, understanding what you’re actually signing up for, and getting your first paying customer. Here’s the practical version, without the hype.
Sole proprietorship vs company: the conceptual difference
Most people starting a small side business default to one of two structures, and the choice matters more than it looks.
Sole proprietorship is the simpler option. You and the business are legally the same entity — there’s no separation. That means setup is cheap and fast, but it also means your personal assets aren’t shielded if the business runs into debt or gets sued. It’s a reasonable starting point for low-risk, low-liability activities (reselling, freelancing, small services) where the downside of something going wrong is limited.
Private limited company creates a separate legal entity from you personally, which gives you liability protection — your personal assets are generally insulated from business debts. It comes with more admin: annual filing requirements, more formal accounting, and (depending on your revenue) potentially more complex tax filing. It’s usually the better fit once you’re taking on real liability, bringing in a co-founder, hiring staff, or want to look more credible to bigger clients and suppliers.
Neither is universally “better” — a reseller doing a few thousand dollars a month in Carousell sales has very different needs from someone planning to hire staff and sign commercial contracts within a year. If you’re unsure, this is a reasonable question to bring to an accountant or company secretary before you register, not after.
What registration actually costs and involves
ACRA (the Accounting and Corporate Regulatory Authority) runs business registration through BizFile+. The registration fee itself is modest — check the current fee schedule on the ACRA website, since fees do get revised. Beyond the government fee, budget for:
- A registered address — this can often be your home address for many small businesses, subject to HDB/URA rules if you’re in residential property, but check the specific requirements for your situation.
- A company secretary (for private limited companies only — not required for sole proprietorships), which most people outsource rather than do themselves.
- Basic accounting/bookkeeping, even if informal at first, since you’ll need records for tax filing regardless of structure.
Sole proprietorship setup costs are lower and the process is faster because there’s less structure to establish. Company incorporation involves a few more steps (memorandum and articles of association, appointing officers) but is still commonly done online within a day or two.
Licenses: check before you assume you don’t need one
Not every business needs a license beyond basic ACRA registration, but plenty do, and the requirement is tied to what you’re actually doing, not how small you are. Common examples: food-related businesses typically need approval from the Singapore Food Agency, businesses handling certain goods or services have sector-specific licensing bodies, and some home-based businesses need to check HDB or URA rules on permitted use of residential premises. Because licensing requirements are sector-specific and do change, look up your specific business activity on GoBusiness Licensing (a government portal that consolidates this) before you launch, rather than assuming a small operation is automatically exempt.
Finding your first customers
This is where most new business owners underestimate the work. Registration is a one-time task; getting customers is ongoing. A few starting points that don’t require an ad budget:
- Your existing network — friends, family, former colleagues, and any community you’re already part of are usually the fastest first sales, even if they feel “too easy” to count.
- The platform where your buyers already are — Carousell (see our guide on how to sell on Carousell if that’s your platform), Instagram, Facebook groups, or a niche forum relevant to your product, rather than trying to build a standalone audience from zero.
- A specific, narrow first offer — “I sell curated vintage jackets” gets remembered and referred more than “I sell clothes,” especially when you have zero reputation yet.
- Word of mouth from your first few customers — deliberately ask happy early customers to share or refer, since this doesn’t happen automatically just because they were satisfied.
None of this is exciting, and none of it scales instantly — but it’s how almost every small Singapore business actually starts, including ones that look impressive later. Get the registration and licensing right so you’re not exposed legally, then spend the majority of your actual time and energy on the unglamorous work of finding and keeping customers.
If your business model leans more toward promoting other people’s products than selling your own, affiliate marketing in Singapore is a lighter-weight alternative worth knowing about. Both sit within our wider Reselling & Online Business guide.