Outsourced Accounting Services in Singapore: Bookkeeping, Financial Reporting and Compliance (2027 Guide)

Outsourced Accounting Services in Singapore: A 2027 Guide for SMEs and Companies

Outsourced accounting services in Singapore allow businesses to engage an external accounting provider to manage bookkeeping, financial reporting, account reconciliations and related compliance tasks without maintaining a full in-house accounting team.

For startups, SMEs, foreign-owned companies and growing businesses, outsourcing can provide access to accounting expertise, more consistent financial records and predictable service arrangements.

However, outsourcing accounting does not remove a company’s statutory responsibilities. Singapore company directors remain responsible for ensuring proper accounting records are maintained and applicable reporting and filing obligations are met.

This 2027 guide explains the scope of outsourced accounting, the difference between bookkeeping and accounting, Singapore ACRA and IRAS requirements, outsourcing costs, reporting frequency and how to choose a suitable accounting service provider.

Businesses seeking professional support can explore BESO’s accounting services in Singapore.

What Are Outsourced Accounting Services?

Outsourced accounting means appointing an external service provider to perform some or all of a company’s accounting functions.

Depending on the agreed scope, services may include transaction recording, bank reconciliation, accounts payable and receivable, financial statement preparation, management reporting and coordination of statutory tax filings.

Some companies outsource their entire accounting function, while others retain an internal finance employee and outsource selected tasks.

What Does an Outsourced Accountant Do?

An outsourced accountant may assist with:

• Recording business income and expenditure.
• Maintaining general ledgers.
• Reconciling bank accounts and payment platforms.
• Tracking customer receivables and supplier payables.
• Maintaining fixed asset schedules.
• Preparing monthly or quarterly management accounts.
• Preparing year-end financial statements.
• Coordinating GST and corporate tax reporting.
• Supporting audit preparation and financial analysis.

The precise responsibilities should be documented in a written service agreement.

Bookkeeping vs Accounting: What Is the Difference?

Bookkeeping focuses on recording and organising financial transactions. Accounting uses those records to prepare reports, assess financial performance and support regulatory compliance.

Area	Bookkeeping	Accounting
Primary purpose	Record financial transactions	Analyse and report financial information
Typical work	Invoices, expenses, ledgers, reconciliation	Financial statements, adjustments, reporting
Frequency	Ongoing or periodic	Monthly, quarterly or annually
Main output	Organised accounting records	Financial and management reports

Accurate bookkeeping is the foundation of reliable accounting.

For businesses that primarily need transaction recording and reconciliation, BESO’s bookkeeping services may be a suitable starting point.

What Is Included in Outsourced Accounting Services in Singapore?

1. Bookkeeping and General Ledger Maintenance

Bookkeeping includes recording sales, purchases, expenses, payments, receipts and other financial transactions in the company’s accounting system.

Transactions should be supported by appropriate invoices, receipts, statements and other documents.

2. Bank Reconciliation

Bank reconciliation compares the accounting records against bank statements to identify differences, missing entries and possible errors.

Regular reconciliation helps improve the reliability of reported cash balances.

3. Accounts Receivable and Accounts Payable

Accounts receivable management involves tracking customer invoices, outstanding balances and payments.

Accounts payable management involves monitoring supplier invoices, payment obligations and related records.

4. Monthly or Quarterly Management Accounts

Management accounts help business owners monitor profitability, expenses, working capital and cash flow.

Common reports include:

• Profit and loss statement.
• Balance sheet or statement of financial position.
• Cash flow reports.
• Accounts receivable ageing.
• Accounts payable ageing.
• Budget-versus-actual comparisons, where requested.

5. Year-End Financial Statements

Companies generally need to prepare financial statements in accordance with applicable accounting standards, unless a statutory exemption applies.

Depending on the company, the applicable framework may include Singapore Financial Reporting Standards (SFRS), SFRS for Small Entities or other permitted standards.

BESO provides unaudited financial statement compilation services for eligible business requirements.

6. GST Accounting and Reporting

GST-registered businesses must correctly account for output tax and eligible input tax, maintain supporting records and submit returns according to their assigned filing periods.

Outsourced accounting can help prepare the underlying records and coordinate GST reporting where included in the engagement.

7. Corporate Income Tax Preparation Support

Accurate accounts support the preparation of Estimated Chargeable Income (ECI) and annual corporate income tax returns.

Tax computation and tax filing may be separate services, so businesses should confirm whether these are included in their accounting package.

Singapore Accounting and Record-Keeping Requirements

Singapore companies must maintain proper accounting records that sufficiently explain their transactions and financial position and enable financial statements to be prepared.

How Long Must Accounting Records Be Kept?

Under ACRA’s company law requirements, companies generally must keep accounting records for at least five years after the end of the financial year in which the relevant transactions or operations were completed.

IRAS also requires companies to retain relevant source documents, accounting records and supporting schedules for at least five years from the relevant Year of Assessment.

Because the legal reference points differ, companies should assess the applicable retention period carefully rather than automatically deleting records five years after the transaction date.

What Accounting Records Should Companies Keep?

• Sales invoices and customer receipts.
• Supplier invoices and expense receipts.
• Bank and payment account statements.
• General ledgers and journals.
• Payroll and employee expense records.
• Fixed asset schedules.
• Inventory and stock records, where applicable.
• Financial statements and supporting schedules.
• GST records, where applicable.
• Tax computations and filing documents.

Companies should ensure records remain accessible, complete and capable of supporting the figures reported to regulators.

ACRA Financial Reporting and Annual Return Requirements

Singapore-incorporated companies generally must prepare financial statements unless they qualify for an applicable exemption.

Whether financial statements must also be filed with ACRA depends on the company’s type, size and statutory exemption status.

Does Every Company Need to File Financial Statements With ACRA?

No. Some companies qualify for financial statement filing exemptions, although they may still need to prepare financial statements.

Certain qualifying dormant relevant companies may be exempt from both preparation and filing requirements.

Companies should assess the applicable ACRA rules rather than assuming that all private companies are exempt.

What Is XBRL Financial Reporting?

XBRL is a structured electronic reporting format used for certain financial statements filed with ACRA.

Where XBRL filing is required, companies must prepare financial information in the applicable format and scope.

Financial statement compilation and XBRL conversion are distinct services and may be priced separately.

Does Outsourcing Accounting Replace Annual Return Filing?

No. Accounting preparation and annual return filing are separate activities.

Companies must ensure that their ACRA annual returns are filed by the applicable deadlines. The deadlines depend on the company type and financial year-end.

Accounting providers may coordinate with corporate secretarial service providers to support the filing process.

IRAS Corporate Tax Requirements for Singapore Companies

Companies must maintain accurate accounting records to support their corporate income tax obligations.

Estimated Chargeable Income (ECI)

ECI is an estimate of a company’s taxable income for the relevant Year of Assessment.

Companies generally must submit ECI within three months after the financial year-end unless they qualify for an ECI filing waiver or are otherwise exempt from filing.

Under the published waiver conditions, a company generally qualifies when its annual revenue does not exceed S$5 million and its ECI is nil, subject to the applicable rules.

Form C-S, Form C-S (Lite) and Form C

Companies must generally file the appropriate annual corporate income tax return, unless specifically exempted or not required to do so.

The standard annual filing deadline is 30 November for the relevant Year of Assessment.

The applicable return type depends on the company’s eligibility.

Why Accurate Accounts Matter for Tax Filing

Properly prepared accounts help companies identify deductible expenses, non-deductible expenditure, capital allowances and relevant tax adjustments.

Errors in bookkeeping may flow through to tax computations and create unnecessary compliance risks.

How Much Do Outsourced Accounting Services Cost in Singapore?

Outsourced accounting fees depend on the company’s transaction volume, business complexity, reporting frequency and the scope of work.

Some providers charge monthly retainers, while others offer annual packages or fees based on transaction bands.

BESO Bookkeeping Package Pricing

Based on BESO’s published service packages as at October 2026, bookkeeping services start from S$1,200 per year for businesses within the applicable lowest transaction-volume band.

Higher transaction volumes and additional services may result in higher fees.

The advertised starting price should not be interpreted as a fixed all-inclusive price for every company.

Visit BESO’s bookkeeping service and pricing page for the current package options.

Factors That Affect Accounting Fees

• Number of monthly transactions.
• Number of bank and payment accounts.
• Whether the business is GST-registered.
• Frequency of management reporting.
• Inventory and fixed asset requirements.
• Foreign currency and cross-border transactions.
• Number of subsidiaries or related companies.
• Need for year-end adjustments and financial statements.
• Payroll, tax filing or audit support requirements.

Are Corporate Tax Filing and GST Filing Included?

Not necessarily. Providers differ in their service scope.

Before accepting a quotation, businesses should confirm whether the price includes GST returns, ECI, annual corporate tax returns, financial statements, XBRL conversion and annual return coordination.

Outsourced Accounting vs Hiring an In-House Accountant

Factor	Outsourced Accounting	In-House Accountant
Cost structure	Service fee based on agreed scope	Salary and employment-related costs
Staffing	External provider	Direct employee
Scalability	Scope may be adjusted	May require additional recruitment
Daily availability	Based on service arrangement	Typically available during working hours
Management control	Requires clear oversight and reporting	Direct internal supervision

Neither approach is automatically better for every business.

Smaller companies may find outsourced accounting practical when their transaction volume is manageable and they do not require a full-time finance employee.

Larger or more complex businesses may benefit from a combination of internal finance staff and external accounting specialists.

Benefits of Outsourced Accounting for Singapore SMEs

1. More Predictable Accounting Costs

An agreed service package can help businesses plan recurring accounting expenditure, subject to changes in transaction volume or scope.

2. Access to Accounting Expertise

External providers may offer experience with financial reporting, reconciliation and Singapore compliance requirements.

3. Better Reporting Consistency

Regular bookkeeping and agreed reporting schedules can help reduce backlogs and improve financial visibility.

4. Support for Regulatory Compliance

Organised accounting records make it easier to prepare financial statements and support ACRA and IRAS filing requirements.

5. More Time for Business Operations

Outsourcing routine accounting work can allow business owners to devote more time to customers, operations and business development.

Which Companies Should Consider Outsourcing Accounting?

Outsourced accounting may be particularly suitable for:

• Newly incorporated Singapore companies.
• Startups with limited internal administrative resources.
• SMEs with relatively predictable transaction volumes.
• Foreign-owned companies requiring Singapore accounting support.
• Investment holding companies.
• Companies preparing for annual financial reporting.
• Businesses requiring monthly or quarterly management accounts.
• Companies experiencing growth or accounting backlogs.

Businesses with highly complex operations should assess whether a dedicated internal finance function is also necessary.

How to Choose an Outsourced Accounting Service Provider in Singapore

Check the Scope of Services

Ask whether the provider handles bookkeeping only or also prepares management accounts, financial statements and tax-related reports.

Review Pricing and Additional Charges

Confirm transaction limits, reporting frequency, one-off setup fees and charges for additional work.

Confirm Reporting Deadlines

Agree on when monthly, quarterly and year-end reports will be delivered.

Assess Data Security and Confidentiality

Ensure the provider has appropriate controls for confidential financial records, system access and document sharing.

Understand the Review and Approval Process

Clarify who approves accounting adjustments, payment instructions and regulatory submissions.

Company management should retain appropriate oversight even when accounting activities are outsourced.

Documents Required to Start Outsourced Accounting

When onboarding an accounting service provider, companies may be asked to provide:

• Company registration details.
• Financial year-end information.
• Previous financial statements or management accounts.
• Bank statements.
• Sales invoices and purchase invoices.
• Expense receipts and payment records.
• Payroll summaries, where applicable.
• GST registration information, where applicable.
• Fixed asset and inventory schedules.
• Existing accounting system access or exported reports.

Complete onboarding records help the accounting provider understand the company’s financial position and identify missing information.

How BESO Supports Outsourced Accounting in Singapore

BESO Corporate Services Pte. Ltd. offers accounting-related services for businesses operating in Singapore.

Depending on the selected package and agreed service scope, assistance may include:

• Bookkeeping and general ledger maintenance.
• Accounts payable and receivable records.
• Bank reconciliation.
• Fixed asset record maintenance.
• Monthly, quarterly or year-end management reports.
• Unaudited financial statement compilation.
• GST-related accounting and filing support.
• Additional accounting and financial reporting services.

Explore the following BESO services:

• Accounting services in Singapore.
• Bookkeeping services and packages.
• Unaudited financial statement compilation.
• BESO’s full range of corporate services.

Enquire About Outsourced Accounting Services in Singapore

Are you looking for a reliable accounting service provider to manage your company’s bookkeeping, financial reporting or year-end accounts?

Visit BESO’s accounting services page to review the available services and submit an enquiry based on your business requirements.

Whether your company is newly incorporated or already operating in Singapore, establishing a consistent accounting process can improve financial visibility and support compliance.

Frequently Asked Questions About Outsourced Accounting in Singapore

1. Is outsourced accounting allowed in Singapore?

Yes. Singapore companies may appoint external service providers to carry out accounting and bookkeeping work. However, directors remain responsible for meeting the company’s statutory accounting and reporting obligations.

2. How much does outsourced accounting cost in Singapore?

Costs vary according to transaction volume, reporting requirements and service scope. BESO’s published bookkeeping packages start from S$1,200 per year for the applicable lowest transaction band. Additional or more complex services may cost more.

3. Do small companies need to maintain accounting records?

Yes. Singapore companies generally must maintain proper accounting records regardless of their size. Relevant ACRA and IRAS record-retention requirements also apply.

4. Does outsourced accounting include corporate tax filing?

Not automatically. Corporate tax filing, GST filing, financial statement preparation and XBRL conversion may be included in certain packages or charged separately. Businesses should confirm the agreed service scope.

5. Can a foreign-owned Singapore company outsource all its accounting work?

Yes. Foreign-owned Singapore companies can outsource accounting functions, subject to their operational needs and applicable regulatory requirements. Company directors must still exercise appropriate oversight and ensure statutory obligations are fulfilled.

Official Singapore References

• ACRA – Company Directors’ Duties and Accounting Obligations
• ACRA – Financial Statement Filing Requirements and Exemptions
• ACRA – Annual Return Deadlines and Requirements
• IRAS – Corporate Record-Keeping Requirements
• IRAS – Estimated Chargeable Income Filing
• IRAS – Corporate Income Tax Filing Guide

Disclaimer: This 2027 guide reflects Singapore regulatory requirements and BESO service information available as at October 2026. Regulatory deadlines, fees, accounting requirements and service packages may change. Businesses should confirm the latest ACRA and IRAS rules and obtain professional advice where appropriate.