- OCS SG
- Feb 4
- 2 min read

The "Big Three" Compliance Requirements
Key Deadlines to Mark on Your Calendar
Choosing Your Accounting Method: DIY vs. Outsourced
3 Golden Rules for Small Business Accounting
How OCS Simplifies Your Accounting
Congratulations! You’ve incorporated your company in Singapore. But now comes the part that keeps many founders awake at night: Accounting.
In Singapore, accounting isn't just about tracking your expenses; it’s about staying compliant with ACRA and IRAS. Failing to do so can lead to hefty fines or even court summons.
In this OCS guide, we break down the accounting essentials every SME owner must know to stay "audit-ready" all year round.
Accounting for Small Businesses in Singapore
1. The "Big Three" Compliance Requirements
Every private limited company in Singapore must fulfill three core financial obligations:
Bookkeeping: Maintaining a daily record of all financial transactions with supporting documents (invoices, receipts).
Financial Statements: Preparing a set of accounts (Profit & Loss, Balance Sheet) in accordance with the Singapore Financial Reporting Standards (SFRS).
Annual Filings: Submitting your Estimated Chargeable Income (ECI) and Form C/C-S to IRAS, and your Annual Return to ACRA.
2. Key Deadlines to Mark on Your Calendar
Missing a deadline in Singapore is expensive (S$300+ fine per late filing). Use this timeline to stay on track:
Timeline | Requirement | Who to File With |
Within 3 Months of FYE | File Estimated Chargeable Income (ECI) | IRAS |
Within 6 Months of FYE | Hold Annual General Meeting (AGM) | Internal |
Within 7 Months of FYE | File Annual Returns (AR) | ACRA |
By 30 November | File Corporate Income Tax (Form C-S/ C) | IRAS |
3. Choosing Your Accounting Method: DIY vs. Outsourced
Should you manage the books yourself or hire a professional?
Option A: The DIY Approach (Best for pre-revenue startups)
If you have very few transactions, you might use software like Xero or QuickBooks.
Pros: Lower initial cost, full control.
Cons: High risk of errors in "SFRS" compliance; time-consuming for the founder.
Option B: Outsourced Accounting (Recommended for growth)
Hiring a firm like OCS to manage your monthly or annual bookkeeping.
Pros: 100% compliance guarantee; access to professional tax tax planning; you focus on sales, not spreadsheets.
Cons: Monthly professional fee.
4. 3 Golden Rules for Small Business Accounting
Rule #1: Separate Personal and Business Finances
Never pay for your personal groceries with your corporate debit card. This "pierces the corporate veil" and makes bookkeeping a nightmare.
Rule #2: Go Paperless from Day One
Singapore’s IRAS accepts digital copies of receipts. Use apps like Hubdoc or Dext to snap photos of receipts immediately. OCS clients get integrated digital workflows to make this seamless.
Rule #3: Understand Your Fiscal Year End (FYE)
Your FYE is the closing date of your business's accounting cycle. Most companies choose 31 December, but choosing a different date (like 31 March) can sometimes offer tax advantages in your first year.
How OCS Simplifies Your Accounting
At OCS, we believe accounting should be invisible. Our SME Accounting Packages include:
Xero Setup & Training: Getting you started on the world’s best cloud accounting platform.
Dedicated Accountant: A human expert to answer your tax questions.
Full Compliance Filing: We handle ECI, Form C-S, and Annual Returns so you never miss a deadline.
Stop Stressing Over Spreadsheets.
[View OCS Accounting Packages] or [Download our Tax Planning Checklist]
