Outsourced vs In-House Accounting for Singapore SMEs: Which Makes More Sense?

For most Singapore small business owners, accounting is not a strategic question; it is an operational one. You need accurate books, timely compliance, and clear financials. The question is how to get there without spending more than you need to.

This guide compares outsourced and in-house accounting for Singapore SMEs using real salary data, CPF rates, and current market pricing. By the end, you will have a clear decision framework for your specific situation.

The real cost of in-house accounting in Singapore

When business owners think about hiring an accountant, they tend to think about the monthly salary. But that is only one part of the picture.

Salaries for accounting staff in Singapore (2025)

Sources: Robert Walters Singapore, Indeed Singapore

What employers actually pay: the fully-loaded cost

On top of base salary, every Singapore employer has statutory obligations that add substantially to the cost.

CPF employer contributions: At 17% of monthly wages for employees aged 55 and below earning above S$750/month. For an accountant on S$3,500/month, that is S$595/month in employer CPF, adding S$7,140 per year.

Other mandatory benefits under the Employment Act:

• Annual leave: 7 to 14 days paid leave depending on length of service
• Sick leave: up to 14 days paid sick leave per year
• 11 paid public holidays

Additional employment costs:

• Medical/health insurance: typically S$1,000 – S$3,000/year
• Accounting software (Xero, QuickBooks, etc.): S$500 – S$1,200/year
• Professional development and CPE training: S$1,000 – S$2,000/year
• Office space (allocated): S$4,800 – S$6,000/year

Fully-loaded cost: a worked example

For a mid-level accountant on S$3,500/month:

That S$3,500/month salary becomes closer to S$5,200/month in real terms, about 49% more than the headline figure.

For a senior accountant on S$4,887/month, the fully-loaded annual cost rises to approximately S$87,000 per year.

This figure also excludes turnover costs: if an accountant leaves, recruitment fees alone typically run 15–20% of annual salary when using a specialist recruiter, plus the management time and productivity loss during onboarding.

The cost of outsourced accounting in Singapore

Outsourced accounting fees in Singapore are typically priced on a monthly retainer basis, often tied to transaction volume or service scope. At Harvest, we also consider other factors that add to the complexity of accounts, such as:

• How your sales invoices are issued
• Number of bank accounts
• If you have any leases under FRS116
• Fixed assets
• Inventory

Typical pricing by transaction volume

Here is a table by transaction volume, typically what you might expect in the market, ignoring other complexities of the business:

What is typically included

A comprehensive outsourced accounting package for Singapore SMEs typically covers:

• Transaction recording and categorisation
• Bank and credit card reconciliation
• Accounts payable and receivable management
• Monthly profit and loss statement, balance sheet, and cash flow statement
• Payroll processing (CPF, IR8A, payslips)
• GST return preparation and filing (if GST-registered)
• Corporate income tax computation and filing (Form C or Form C-S)
• ACRA Annual Return filing and compliance support

At Harvest Accounting, our fixed monthly retainers start from S$300/month and cover the full accounting stack, including Xero, bookkeeping, GST, payroll, and tax, with monthly reports ready within 10 working days of month-end.

Side-by-side comparison: outsourced vs in-house

At what size does in-house accounting make sense?

This is the right question to ask, and the answer depends on two variables: transaction volume and business complexity.

Revenue and transaction-based thresholds

Below S$1 million annual revenue / under 100 monthly transactions: Outsourced accounting almost always makes financial sense. The cost differential is too large to justify in-house hiring. Comprehensive outsourced services cost S$3,600 – S$5,000/year versus S$60,000+ in-house.

S$1 million – S$3 million annual revenue / 100–300 monthly transactions: Outsourced accounting remains optimal for most businesses. However, at the upper end of this range, businesses may benefit from a hybrid model: outsourced transactional bookkeeping combined with in-house financial oversight.

S$3 million – S$8 million annual revenue / 300–800 monthly transactions: This is the inflection point where dedicated in-house capacity begins to be worth evaluating. A hybrid model is often the right answer here: an in-house financial manager or controller focused on analysis and strategy, with transactional accounting outsourced.

Above S$8 million annual revenue / complex multi-entity structures: Dedicated in-house accounting teams become increasingly justified. Businesses at this scale have sufficient volume to keep a team productive, and complexity levels may require on-site expertise. Even then, many choose to outsource payroll, GST, and tax compliance to specialists.

Other factors that matter

Beyond revenue, consider:

• GST registration: If you are GST-registered, quarterly returns create a compliance rhythm best handled by specialists
• Multiple entities: Consolidated reporting across entities benefits from specialist knowledge
• Growth stage: Fast-growing businesses need flexible accounting capacity; outsourced services scale without headcount decisions
• Availability: Founders who cannot dedicate time to financial oversight are better served by an outsourced team that is proactively managing compliance

What "outsourced" actually looks like in practice

There is a misconception that outsourced accounting means handing over a folder of receipts once a year and waiting for the results. Modern outsourced accounting, done properly, is a proactive, technology-enabled system. Think of it less like delegation and more like having a specialist team running the whole process for you, with real-time visibility into your numbers at any point.

Charissa Guan, Founder and Managing Partner of bSide Agency, describes her experience with Harvest Accounting: "That one day of the month, it takes me literally like three minutes. I click done, done, done, and then I'm done. Nothing has ever been late."

That is not an accident. It reflects a workflow built on Xero for real-time visibility, Dext for receipt capture, and a proactive monthly checklist that tells clients exactly what is needed, making the process fast, low-friction, and never late.

Kristen Romain, Founder and Director of Swish Swimming, put it simply: "The reason we moved to Harvest is they stay on the edge of technology."

When accounting works this way, founders get their financials within 10 working days of month-end and can check their Xero dashboard whenever they want. The mental load, that constant background worry of "are my books in order?" disappears.

What to outsource and what to keep in-house

Even for businesses that keep some accounting in-house, certain functions are better suited to outsourcing.

Functions that outsource well:

• Transaction recording and bank reconciliation
• Payroll processing (CPF, IR8A, payslips)
• GST return preparation and filing
• Corporate income tax computation (Form C/C-S)
• ACRA Annual Return filing
• Monthly financial statement preparation

Functions often retained in-house as businesses grow:

• Cash flow management and working capital decisions
• Financial planning, forecasting, and scenario analysis
• Department-level cost allocation and management reporting
• Customer-facing financial communications

Singapore compliance: why getting this right matters

Singapore's regulatory environment has real teeth. Non-compliance with IRAS and ACRA requirements can be expensive:

• Late GST return filing: S$200 immediately, plus S$200/month up to S$10,000 per return
• Late Annual Return filing: S$300 – S$600 plus potential composition sums
• Late corporate income tax filing: 5% penalty on outstanding tax, rising to 1% per month after 60 days
• Persistent breaches (3+ offences in 5 years): director disqualification

Good accounting, whether in-house or outsourced, must handle these deadlines without fail. Before choosing a provider, check how they manage your compliance calendar and what their track record is on timely filings.

Making the decision: a practical framework

Ask yourself these questions:

1. How many transactions does your business process per month?
2. Are you GST-registered, and do you find quarterly filing a burden?
3. Do you have the time and expertise to oversee in-house accounting staff?
4. Is your business growing quickly, with unpredictable scaling needs?
5. How important is having real-time financial visibility?

For most Singapore SMEs with revenue below S$5 million, the answer points clearly to outsourced accounting. The cost savings are substantial, compliance risk is lower, and founders regain the headspace to focus on their actual business.

If you are weighing your options or want to understand what outsourced accounting looks like in practice, speak to the Harvest team. We work with SMEs across a wide range of industries and can give you a straightforward view of what is right for your situation.

Frequently asked questions

How much does it cost to hire an accountant in Singapore? A mid-level accountant in Singapore earns S$3,500 – S$4,500/month in base salary. When employer CPF contributions, benefits, software, and overheads are included, the fully-loaded annual cost rises to approximately S$62,000 – S$87,000.

How much do outsourced accounting services cost in Singapore? Most Singapore SMEs with 100–200 monthly transactions pay S$400 – S$600/month for comprehensive outsourced accounting that includes bookkeeping, GST, payroll, and tax. Harvest Accounting's fixed monthly retainers start from S$300/month.

Is it cheaper to outsource accounting or hire in-house? For most SMEs with revenue below S$5 million, outsourcing is significantly cheaper, typically 70–85% less than the fully-loaded cost of an in-house accountant. The cost differential narrows as transaction volume increases.

What should outsourced accounting include for a Singapore company? At minimum: monthly bookkeeping, bank reconciliation, financial statements, GST filing (if applicable), payroll processing, corporate tax filing, and ACRA Annual Return support.

At what revenue should I consider hiring an in-house accountant? As a general guide, businesses with revenue above S$5–8 million and complex operations begin to see a genuine case for in-house accounting. Below that threshold, a hybrid model: outsourced transactional work plus in-house strategic oversight. This typically delivers the best outcome.

Can I switch from in-house to outsourced accounting easily? Yes. A well-structured handover to an outsourced provider typically takes a few weeks. Harvest handles the full migration and Xero setup, so the transition is smooth and does not disrupt your compliance timeline.