Quick Answer: The most common mistakes when starting a Singapore business include choosing the wrong business structure, underestimating compliance requirements, neglecting to appoint a company secretary within 6 months, and poor cash flow planning. Here are the top 10 pitfalls and how to avoid them.

Here are the ten most common mistakes, with the specific consequences of each.

This guide covers the ten most common mistakes we see from new business owners in Singapore, from choosing the wrong structure to neglecting compliance obligations that carry real penalties.

What you’ll learn:

Critical legal and structural decisions to get right from day one
Compliance deadlines and penalties you need to know
Financial planning mistakes that catch new businesses off guard
Practical steps to avoid each mistake

For a complete walkthrough of the registration process itself, see our step-by-step guide to registering a company in Singapore.

1. Choosing the Wrong Business Structure

This is the most consequential decision you’ll make, and it’s often made too quickly. The most common options are Sole Proprietorship and Private Limited Company (Pte Ltd), and the differences are significant.

	Sole Proprietorship	Private Limited Company (Pte Ltd)
Registration fee	S$115	S$315
Legal liability	Unlimited — personal assets at risk	Limited to paid-up capital
Tax	Personal income tax rates (up to 24%)	Corporate rate of 17% + exemptions
Fundraising	Not possible	Shares can be issued to investors
Local director	Not available	Required
Credibility with banks/clients	Lower	Higher

The S$200 saving on registration fees is not a compelling reason to choose a sole proprietorship if you have any growth ambitions. Founders who start as sole traders and later convert to a Pte Ltd must incorporate a new entity, transfer assets, update contracts, and re-establish banking relationships. The cost of conversion consistently exceeds the cost of starting with the right structure.

For most businesses (and for all foreign founders) a Pte Ltd is the correct default.

For a detailed comparison, see our guide on Pte Ltd vs. Sole Proprietorship.

2. Delaying the Appointment of a Company Secretary

Under Section 171 of the Companies Act, every Singapore company must appoint a qualified company secretary within six months of incorporation. This is a statutory requirement, not a formality.

The company secretary is responsible for maintaining statutory registers, filing annual returns with ACRA on time, organising director and shareholder resolutions, and ensuring the company meets its ongoing legal obligations. A director cannot serve as the sole company secretary.

Missing this six-month window puts the company in breach of the Companies Act and exposes directors to personal penalties. It also creates downstream problems: many compliance tasks cannot be completed without a secretary in place.

Company secretarial services typically cost between S$500 and S$2,000 per year. That cost should be treated as a baseline compliance expense from day one.

3. Not Having a Shareholder Agreement

A shareholder agreement governs the issues that matter most when things go wrong: ownership percentages, voting rights, how decisions are made, dividend policy, what happens when a shareholder wants to exit, and how disputes are resolved. Without one, a disagreement between founders has no contractual framework for resolution and thus disputes default to the Companies Act, which is a blunt instrument not designed for founder-specific situations.

Shareholder agreements should be drafted at incorporation, not after a disagreement has already started. At that point, the parties rarely have the goodwill to negotiate one fairly.

4. Missing ACRA Filing Deadlines

Incorporating your company is the beginning of your relationship with ACRA, not the end. All Singapore companies must meet ongoing compliance obligations, including:

Every Singapore company has ongoing statutory obligations:

Annual General Meeting (AGM): Must be held within six months of financial year-end (or resolutions passed in lieu)
Annual Return (AR): Must be filed with ACRA within seven months of financial year-end for non-listed companies

Filing after the deadline triggers an automatic late lodgement penalty calculated based on how late the submission is. The penalty is up to S$600 for each late filing.

Set reminders for your filing deadlines to avoid paying unnecessary late fees.

5. Missing the GST Registration Threshold

The mandatory GST registration threshold is S$1 million in annual taxable turnover. Miss it and the consequences go well beyond a fine.

If you register late, your registration date is backdated to when you should have registered, and you are required to account for and pay GST on all past sales from that date even if you didn’t collect it from customers. You may also face a fine of up to S$10,000 and a penalty equal to 10% of the GST due for late notification.

In practice, this means absorbing the full 9% GST liability on historical revenue out of your own margin.

Businesses that voluntarily disclose late registration when submitting their application may have the late notification fine and penalties waived, but they must still account for backdated GST.

Basis

Trigger

Action required

Retrospective

Taxable turnover exceeds S$1M in the past 12 months

Apply within 30 days of calendar year-end

Prospective

Reasonable expectation of exceeding S$1M in next 12 months

Apply within 30 days of forecast date

6. Overlooking Employment Act Obligations

The moment you hire your first employee, you take on a set of legal obligations under the Employment Act. These include requirements around working hours, rest days, annual leave, sick leave, and the issuance of itemised payslips.

Many new employers aren’t fully aware of these obligations, particularly around:

Itemised payslips: Must be provided with every salary payment, containing specific details including basic salary, allowances, deductions, and overtime pay
Employment records: Must be maintained for at least two years
CPF contributions: Must be made monthly for all eligible employees

Non-compliance can lead to penalties from the Ministry of Manpower (MOM) and disputes with employees. If managing payroll and employment compliance feels overwhelming, consider outsourcing it early.

7. Poor Record-Keeping

Maintaining proper business records is a legal requirement, not a best practice. Under the Income Tax Act, all records must be kept for at least five years from the relevant Year of Assessment. For GST-registered businesses, the same five-year requirement applies under the GST Act.

Records that must be kept include invoices, receipts, bank statements, contracts, and accounting records. Poor record-keeping creates three compounding problems:

You cannot prepare accurate financial statements
You cannot substantiate tax deductions and claims if IRAS audits you — disallowed claims mean additional tax liability
You cannot claim schemes like the Enterprise Innovation Scheme (EIS) without invoices clearly identifying qualifying expenditure

Set up a proper accounting system at incorporation. Reconstructing records retroactively costs more in accountant time than maintaining them would have cost in the first place.

8. Inadequate Capitalisation

The minimum paid-up capital to register a company in Singapore is S$1. This is great for accessibility, but it creates a dangerous illusion. Starting a business with insufficient capital is one of the most common reasons new ventures fail.

Many entrepreneurs underestimate the funds needed to cover:

Initial setup costs (office, equipment, licenses)
Operating expenses for the first 6–12 months
Marketing and customer acquisition
Unforeseen contingencies

Create a detailed financial forecast before you launch. Be realistic about how long it will take to generate revenue and ensure you have enough runway to get there.

9. Neglecting Intellectual Property Protection

Your brand name, logo, and proprietary processes are valuable assets. Yet many new businesses fail to protect their intellectual property, leaving themselves vulnerable to imitation and infringement.

Registering your trademarks, patents, and designs with the Intellectual Property Office of Singapore (IPOS) provides legal recourse if someone copies your work. The cost of registration is modest compared to the cost of fighting an IP dispute without it.

At minimum, register your company name and logo as trademarks. If your business involves proprietary technology or processes, consider patent protection as well.

10. Trying to Do Everything Yourself

The most understandable mistake, and often the most expensive. Founders who try to manage their own company secretarial work, accounting, payroll, and legal documentation typically make errors in all four areas. The errors compound: missed filing deadlines create penalties; poor bookkeeping leads to incorrect tax filings; informal employment arrangements create MOM exposure.

The areas where professional help pays for itself most quickly:

Company secretary and compliance: Ensures you meet all statutory deadlines
Accounting and tax filing: Maximises your tax efficiency and avoids penalties
Legal agreements: Protects your interests from the start
Payroll: Ensures compliance with CPF, SDL, and Employment Act requirements

The cost of professional services is an investment in getting things right the first time, not an expense to be minimised at all costs.

Next Steps

Starting a business in Singapore is straightforward when you understand the requirements and plan accordingly. The mistakes above are all avoidable with the right preparation and professional support.

Where we can help:

Company registration and incorporation
Company secretary and compliance services
Accounting, tax filing, and advisory
Payroll processing and HR support
Nominee director services for foreign entrepreneurs

Most of the mistakes on this list stem from not knowing what you don’t know. If you’re in the early stages of setting up, a conversation with our team can help you identify potential blind spots and build a compliant foundation from day one.

Frequently Asked Questions

What’s the single most important thing to get right when starting a business in Singapore?

Choosing the right business structure. This decision affects your personal liability, tax obligations, ability to raise capital, and credibility with banks and clients. For most businesses with growth ambitions, a Pte Ltd is the right choice.

How much does it actually cost to start a Pte Ltd in Singapore?

Government fees total S$315. Professional service fees for incorporation typically range from S$500 to S$2,000. Ongoing annual costs include company secretary services (S$500–S$2,000), accounting and tax filing (S$1,000–S$3,000+), and a registered office address if needed.

Can I fix these mistakes after the fact, or is the damage permanent?

Most mistakes are fixable, but the cost of correction is almost always higher than the cost of getting it right initially. Converting from a sole proprietorship to a Pte Ltd, for example, involves incorporating a new entity and transferring all assets and contracts.

Do I need a lawyer to start a business in Singapore?

Not necessarily for the incorporation itself, but legal advice is strongly recommended for shareholder agreements, employment contracts, and any industry-specific regulatory requirements. A corporate services provider can handle most of the standard setup and compliance work.

What are the most common penalties for non-compliance?

Late filing of annual returns with ACRA can result in penalties starting at S$300. Late CPF payments incur interest charges. Failure to provide itemised payslips can attract fines. Late GST registration can result in penalties and back-dated GST liability. The specific amounts vary, but they add up quickly.

Top 10 Mistakes to Avoid When Starting a Business in Singapore