10 Best Outsourced Accounting Firms in Singapore

Singapore has many outsourced accounting firms, but their services vary beyond basic bookkeeping. Some firms focus on startups and SMEs, while others handle larger accounts, payroll, tax, reporting, or CFO support.

Compare firms on Singapore compliance, software, reporting, communication, and scalability not price alone.

Transaction volume also matters, especially as your accounting workload grows.This guide compares 10 outsourced accounting firms in Singapore, so keep reading to see what each one offers.

What to Know Before Choosing an Outsourced Accounting Firm

• Services go beyond bookkeeping - Tax, GST/XBRL, payroll, reporting, and CFO support may also be included.
• Business needs shape the right fit - Startups, SMEs, regional companies, and multinationals may need different levels of support.
• Compare more than pricing - Check compliance expertise, technology, communication, reporting, and what the quoted fee includes.

Quick Comparison: Top 10 Outsourced Accounting Firms in Singapore

Provider	Main Strength	Key Services	Best Suited For
Duellix	Integrated accounting and corporate support	Bookkeeping, tax, financial statements, incorporation, secretarial	Startups and SMEs
Osome	Digital-first accounting	Bookkeeping, tax, software, payroll, compliance	Digital-first SMEs
Sleek	Cloud-based accounting ecosystem	Bookkeeping, tax, payroll, reporting, corporate services	Startups and SMEs
inDinero	Accounting, tax, and CFO support	Accounting, bookkeeping, tax, CFO advisory	Growth-stage companies
Margin Wheeler	Singapore accounting and compliance	Accounting, bookkeeping, tax, corporate services	SMEs and growing companies
HeySara	Technology-driven business services	Accounting, secretarial, compliance, advisory	Founders and SMEs
InCorp Group	Regional corporate support	Accounting, bookkeeping, tax, corporate services	Regional businesses
TMF Group	Multijurisdictional operations	Accounting, tax, payroll, entity management	Multinational companies
SBS Consulting	Local accounting outsourcing	Bookkeeping, accounting, GST, tax, payroll	SMEs and local businesses
RSM Singapore	Broad professional-services capability	Accounting, audit, tax, advisory, outsourcing	Growing and larger businesses

This table compares documented services and potential business fit. It does not rank service quality, customer satisfaction, or price

What Businesses Gain From Outsourcing Accounting

Outsourcing accounting can give businesses access to professional financial support without building a full in-house accounting team.

Depending on the provider and package, services may include:

• Bookkeeping and financial reporting for routine accounting work
• Tax and GST support for Singapore compliance requirements
• Cloud accounting tools for invoices, receipts, reconciliations, and reports
• Payroll and corporate services through one external provider
• CFO and financial advisory support for more complex financial needs
• Scalable accounting operations as transaction volumes increase
• Regional accounting support for businesses expanding across Southeast Asia

Research from ACCA's AB Magazine shows

"The cost of outsourcing is typically 50% less than an onshore resource" – ACCA's AB Magazine

Check each provider's service scope, software, reporting schedule, and package inclusions before signing an agreement.

How We Built This List of Best Outsourced Accounting Firms

This list uses provider information and public search research available in 2026. The goal is to compare these firms based on their current services and support.

The comparison looked at:

1. Service scope : Bookkeeping, accounting, tax, payroll, financial reporting, and related services.
2. Singapore compliance support : Services covering ACRA, IRAS, GST, ECI, corporate tax, and XBRL where applicable.
3. Technology and workflow : Cloud accounting software, digital document management, automated reconciliation, and accounting integrations.
4. Business fit : Support for startups, SMEs, growing companies, larger businesses, and regional operations.
5. Scalability : Whether services can adapt as transaction volumes, financial needs, or business operations grow.
6. Pricing information : Publicly available package details, monthly fees, or transaction-based pricing where provided.
7. 2026 service information : Current provider websites and service pages were reviewed to avoid relying solely on older directory listings.

This is a comparison, not a ranking of service quality. Service availability, pricing, and package details can change, so confirm the latest terms with each provider.

Which Outsourced Accounting Firms Should Singapore Businesses Consider?

These providers serve different business needs, from SME accounting and compliance to regional and enterprise finance support.

1. Duellix

Duellix provides accounting and tax services alongside incorporation and corporate secretarial support. Its accounting packages are based on transaction volume and can include bookkeeping, unaudited financial statements, and corporate tax filing. Duellix also publishes its pricing online.

Key features:

• Bookkeeping and financial statements
• Corporate tax filing
• GST registration and returns
• Corporate secretarial services
• Xero-based accounting options
• Transaction-volume pricing

Strength:

• Combines accounting, tax, and corporate administration under one provider.
• Offers transaction-based pricing that can help businesses match costs with accounting workload.
• Provides services that can support both financial and corporate compliance needs.

Potential weakness:

• Companies with complex multinational structures may need more specialized services.
• Businesses with advanced finance transformation or enterprise-level requirements may need additional advisory support.

Ideal use case:

• Startups and SMEs that want accounting and corporate compliance from one provider.
• Businesses that prefer a bundled service model rather than managing several vendors.
• Companies looking for accounting packages with pricing linked to transaction volume.

2. Osome

Osome combines accounting services with online financial tools. Its accounting packages include bookkeeping, management reports, unaudited financial statements, ECI filing, and corporate tax filing. Other services include payroll, GST, XBRL, and consolidation.

Key features:

• Bookkeeping
• Automated reconciliation
• ECI and corporate tax filing
• Multi-currency support
• Online accounting platform
• Payroll and GST services

Strength:

• Combines professional accounting support with a digital workflow.
• Online tools can make document sharing and accounting communication easier.
• Offers additional services for businesses that need payroll, GST, XBRL, or consolidation support.

Potential weakness:

• Some services, such as XBRL, GST, and certain advisory work, may cost extra depending on the package.
• Businesses with highly complex financial structures may need more specialized advisory support.

Ideal use case:

• Founders and SMEs that prefer online accounting and software-supported workflows.
• Digital-first businesses that want accounting processes managed through an online platform.
• Companies looking to combine bookkeeping with tax and compliance services.

3. Sleek

Sleek combines accounting with incorporation, corporate secretarial services, business administration, and financial tools. Its Singapore accounting services include bookkeeping, management reports, tax filing, payroll, Xero integration, and financial reporting.

Key features:

• Cloud-based bookkeeping
• Xero integration
• Management reporting
• Corporate tax filing
• GST and XBRL support
• Payroll and leave management
• Dedicated accounting support

Strength:

• Connects accounting technology with corporate administration and compliance services.
• Provides several business services through one digital platform.
• Xero integration can support businesses already using cloud accounting software.

Potential weakness:

• Companies with specialized finance or multinational requirements may need more extensive advisory support.
• Businesses needing highly customized enterprise finance processes may require a more specialized provider.

Ideal use case:

• Startups and SMEs that want cloud accounting alongside corporate compliance services.
• Businesses that prefer managing accounting and corporate administration through a digital platform.
• Companies using Xero or looking for a cloud-based accounting workflow.

4. inDinero

inDinero provides outsourced accounting, bookkeeping, tax, and CFO services through a finance-as-a-service model. Its platform combines finance professionals with technology-supported workflows and can support businesses with multi-entity accounting and strategic finance needs.

Key features:

• Outsourced accounting
• Bookkeeping
• Business tax services
• CFO advisory
• Financial reporting
• AI-supported finance workflows
• Multi-entity support

Strength:

• Covers accounting operations as well as tax and higher-level financial support.
• Provides services that can extend from day-to-day accounting to strategic financial planning.
• Multi-entity capabilities can support companies with more complex organizational structures.

Potential weakness:

• Its broader finance offering may be more than a business needs for basic Singapore bookkeeping.
• Companies looking only for routine local bookkeeping may not need the full range of services.

Ideal use case:

• Growth-stage companies that need accounting alongside tax, forecasting, CFO, or strategic finance support.
• Businesses preparing for expansion or managing multiple entities.
• Companies that want access to higher-level finance support without building a large internal finance team.

5. Margin Wheeler

Margin Wheeler provides accounting and bookkeeping services for Singapore businesses, including ACRA and IRAS compliance support. Its pricing varies based on factors such as transaction volume and whether the business needs ongoing or year-end accounting services.

Key features:

• Accounting and bookkeeping
• ACRA compliance support
• IRAS-related accounting requirements
• Transaction-based pricing
• Corporate services

Strength:

• Focuses on Singapore accounting and compliance requirements.
• Provides services suited to businesses that need ongoing bookkeeping and regulatory support.
• Transaction volume is considered when determining accounting requirements and costs.

Potential weakness:

• Companies with extensive multinational operations may need a provider with broader regional infrastructure.
• Businesses seeking advanced CFO, finance transformation, or multi-country services may need a wider service offering.

Ideal use case:

• Singapore SMEs looking for local accounting, bookkeeping, and compliance support.
• Businesses that primarily operate in Singapore and need support with local requirements.
• Companies that want accounting services without a large multinational provider structure.

6. HeySara

HeySara provides accounting, corporate compliance, and business support services. Its Singapore services include accounting, corporate secretarial support, tax-related services, and other business solutions. The company also states that it is an ACRA-registered filing agent and operates across several jurisdictions.

Key features:

• Accounting services
• Corporate secretarial support
• Compliance services
• Business advisory
• Technology-driven workflows
• Multilingual support
• Regional coverage

Strength:

• Combines accounting and corporate administration with a technology-oriented service model.
• Offers several business support functions through one provider.
• Regional coverage can be useful for businesses with operations beyond Singapore.

Potential weakness:

• Companies with complex enterprise finance needs may require a provider with more extensive finance infrastructure.
• Businesses looking for specialized multinational accounting or advanced financial advisory may need additional support.

Ideal use case:

• Founders and SMEs that want accounting and corporate administration through a digital service model.
• Businesses that need both accounting and corporate compliance support.
• Companies with regional plans that may benefit from broader business-service coverage.

7. InCorp Group

InCorp Group provides accounting and corporate services for businesses operating in Singapore. Its accounting services include bookkeeping, financial reporting, accounting system setup, financial statement preparation, and compliance support.

Key features:

• Bookkeeping
• Financial reporting
• Financial statement preparation
• Accounting system setup
• Tax and compliance support
• Regional corporate services

Strength:

• Provides accounting within a wider regional corporate-services network.
• Combines financial support with corporate and business services.
• Regional coverage can support companies managing operations across multiple Asian markets.

Potential weakness:

• Smaller businesses looking only for basic bookkeeping may not need its broader service offering.
• Companies seeking a highly specialized finance-only provider may prefer a narrower service model.

Ideal use case:

• Companies that need accounting support while establishing or managing operations across multiple Asian markets.
• Businesses that want accounting alongside corporate services.
• Companies planning regional expansion and needing support across different business functions.

8. TMF Group

TMF Group provides accounting, tax compliance, payroll, HR administration, corporate secretarial services, and entity management in Singapore. Its services support multinational companies, regional structures, and regulated entities. TMF Group operates across multiple jurisdictions.

Key features:

• Statutory accounting
• Tax compliance
• GST and XBRL support
• Payroll and HR administration
• Entity management
• Multijurisdictional support
• SFRS-related accounting

Strength:

• Provides infrastructure for companies operating across multiple jurisdictions.
• Combines accounting with tax, payroll, HR, and entity-management services.
• Its broad geographic coverage can support multinational and regional structures.

Potential weakness:

• Its broad service model may be more extensive than a small local business needs.
• Smaller companies with straightforward accounting requirements may not need its full range of services.

Ideal use case:

• Multinational companies and regional headquarters.
• Regulated entities and businesses with cross-border structures.
• Companies that need accounting alongside payroll, tax, entity management, or other corporate services.

9. SBS Consulting

SBS Consulting provides accounting outsourcing services for Singapore SMEs and other businesses. Its services cover bookkeeping, full-set accounting, financial statements, bank reconciliation, accounts payable and receivable, XBRL, GST, tax, and payroll.

Key features:

• Full-set accounting
• Bookkeeping
• Financial statements
• Accounts payable and receivable
• GST filing
• Corporate tax services
• XBRL preparation
• Payroll services

Strength:

• Covers a broad range of local accounting and compliance needs.
• Supports both routine bookkeeping and full-set accounting requirements.
• Its service scope includes tax, GST, payroll, and financial reporting.

Potential weakness:

• Companies looking for complex multinational finance services may need a more globally integrated provider.
• Businesses with advanced finance transformation or strategic CFO requirements may need additional specialist support.

Ideal use case:

• SMEs seeking Singapore-focused bookkeeping, accounting, tax, and compliance services.
• Businesses that need full-set accounting rather than basic bookkeeping alone.
• Companies looking to combine accounting, GST, tax, and payroll support.

10. RSM Singapore

RSM Singapore provides accounting outsourcing alongside assurance, tax, advisory, and business solutions. Its services cover startups, SMEs, and multinational companies, with options including contract accounting, payroll, financial reporting, and CFO support.

Key features:

• Accounting outsourcing
• Routine and contract accounting
• Financial reporting
• Audit and assurance
• Tax advisory
• Payroll services
• CFO support
• Regional and international capabilities

Strength:

• Offers accounting alongside a wide range of professional and advisory services.
• Can support businesses that need accounting together with tax, assurance, or financial advisory.
• Its regional and international capabilities can support companies with broader operating needs.

Potential weakness:

• Its broader professional-services structure may be more than a microbusiness needs for basic bookkeeping.
• Companies seeking only routine bookkeeping may not require its wider advisory capabilities.

Ideal use case:

• Growing companies and larger SMEs that need accounting alongside audit, tax, or advisory support.
• Businesses that expect their accounting requirements to become more complex as they grow.
• Companies that need access to regional or international professional-services capabilities.

What Should Businesses Check Before Outsourcing Accounting?

The best provider for a business depends on its transaction volume, compliance requirements, technology stack, and growth plans.

Selection Factor	What to Verify
ACRA & IRAS expertise	ECI, Form C-S/C, GST, XBRL, and statutory filing knowledge
Pricing transparency	Transaction-volume tiers, inclusions, exclusions, and additional fees
Communication	Named account manager, response times, and escalation procedures
Data security	Financial data protection, access controls, and relevant certifications
Technology	Xero, QuickBooks, cloud platforms, bank feeds, and integrations
Reporting	Monthly management accounts, financial statements, and cash-flow reporting
Regional capability	Multi-entity and cross-border support when required
Scalability	Ability to handle higher transaction volumes and additional services

Why Do Communication and Governance Matter?

Outsourced accounting becomes part of a company's financial workflow. Both sides should know who handles daily accounting, reviews financial information, manages filings, and escalates urgent issues.

Before signing, clarify:

• Who is the day-to-day account manager?
• How quickly are accounting questions answered?
• Who reviews the financial statements?
• What happens when transaction volumes increase?
• Which compliance deadlines does the provider monitor?
• Which services require separate fees?

Clear responsibilities can prevent confusion when accounting, tax, payroll, and corporate secretarial services overlap.

How Does Digital Integration Affect Outsourced Accounting?

Digital tools can reduce manual work and make financial records easier to access and manage.

Common tools include:

• Cloud accounting platforms for remote access to financial records
• Automated reconciliation for recurring transaction matching
• Digital receipt collection for organizing supporting documents
• Bank integrations for importing transaction data
• Standardized reporting for consistent financial reviews

As highlighted by Asia Competitiveness Institute, NUS

"output of ICT, Financial & Insurance, and Business Services sectors is expected to increase" by at least 6–7% under Singapore's Digital Economy Agreements – Asia Competitiveness Institute, NUS

The main question is whether the provider's technology works with your existing systems. Check compatibility with banking, invoicing, payroll, and reporting tools before engagement.

Which Accounting Model Fits Different Business Needs?

Different businesses need different levels of accounting support. A startup may only need basic bookkeeping and corporate administration, while a growing company may require tax support, payroll, financial reporting, or CFO services.

Businesses operating across markets may also need a provider familiar with multiple jurisdictions.

Business Need	Relevant Provider Characteristics
Startup administration	Integrated accounting and corporate services
SME compliance	Singapore tax and ACRA expertise
Digital-first operations	Cloud platforms and automated workflows
Regional expansion	Multi-jurisdictional support
Complex structures	Enterprise governance and advisory
Strategic finance	Reporting, budgeting, and CFO support
High transaction volume	Scalable bookkeeping and accounting processes
Payroll requirements	Integrated payroll and HR administration

Focus on the services you need now and the support you may need as the business grows.

What Questions Should You Ask Before Selecting a Provider?

Ask about fees, service ownership, compliance responsibilities, technology, and escalation procedures before outsourcing.

• Who will manage the account day to day?
• Which filings are included in the quoted fee?
• How are additional transactions billed?
• Which accounting platforms are supported?
• Is Xero or QuickBooks included in the package?
• How are confidential financial records protected?
• Are GST and XBRL services included?
• Can the provider handle payroll?
• Can the provider support regional expansion?
• What happens when an urgent compliance issue arises?

Get these details in writing before comparing providers.

How Can Businesses Narrow the Top 10 to a Suitable Provider?

Start with your operational requirements rather than the provider's brand size.

1. Define the accounting and compliance services required.
2. Estimate monthly or annual transaction volume.
3. Identify required software integrations.
4. Confirm ACRA and IRAS capabilities.
5. Compare package pricing and additional fees.
6. Evaluate communication and account management.
7. Check reporting requirements.
8. Consider payroll or CFO support if needed.
9. Assess regional requirements.
10. Request a detailed written proposal before engagement.

This process helps you compare providers based on factors that affect daily operations.

What Should You Expect From Outsourced Accounting in Singapore?

Outsourced accounting in Singapore now covers much more than basic bookkeeping. Depending on the provider, businesses can access bookkeeping, financial reporting, corporate tax, GST, payroll, corporate secretarial support, cloud accounting, and CFO-level services.

The providers in this list represent different operating models:

• Duellix focuses on integrated accounting, tax, and corporate administration for startups and SMEs.
• Osome and Sleek emphasize digital accounting workflows and online business administration.
• Margin Wheeler and SBS Consulting provide Singapore-focused accounting and compliance services.
• HeySara and InCorp combine accounting with wider corporate and regional services.
• TMF Group and RSM Singapore provide broader infrastructure for businesses with more complex or international requirements.
• inDinero combines outsourced accounting with tax and CFO support.

The right choice ultimately depends on transaction volume, compliance needs, technology preferences, reporting requirements, and growth plans.

FAQ

What should I check before hiring an outsourced accounting firm in Singapore?

Check whether the firm understands Singapore accounting standards, tax requirements, and filing deadlines. Review its bookkeeping, financial reporting, payroll, and compliance services to confirm that they match your business needs. When comparing the best outsourced accounting firms in Singapore, also check communication, response times, data security, pricing, and the firm’s ability to support business growth.

How much do outsourced accounting services in Singapore usually cost?

The cost depends on your transaction volume, business size, reporting requirements, payroll needs, tax work, and required level of support. Some firms offer fixed monthly packages, while others provide customized pricing. Before choosing an outsourced accounting provider, request a detailed quote that lists included services, additional charges, billing terms, and fees for services outside the agreed scope.

Is outsourced accounting suitable for small businesses in Singapore?

Outsourced accounting can be suitable for small businesses that need professional financial support without hiring a full-time accounting team. Common services include bookkeeping, financial reporting, tax preparation, and compliance support. Accounting outsourcing in Singapore can reduce the amount of financial administration handled internally while giving small businesses access to accounting professionals for routine financial and regulatory tasks.

What accounting tasks can a Singapore business outsource?

A Singapore business can outsource bookkeeping, accounts payable, accounts receivable, bank reconciliation, payroll processing, financial reporting, tax preparation, and compliance work. The available services depend on the provider and the company’s requirements. Before signing an agreement, clearly define which accounting responsibilities the provider will manage, how often reports will be delivered, and which tasks will remain with your internal team.

How can I tell whether an outsourced accounting firm is reliable?

Look for Singapore accounting experience, qualified accounting staff, documented work processes, secure data handling, transparent pricing, and reliable communication. Ask how the firm reviews financial records, manages filing deadlines, corrects errors, and protects confidential business information. When comparing accounting outsourcing Singapore options, review these factors alongside service scope and cost to determine whether a provider fits your business needs.

What Is the Practical Takeaway for Choosing an Outsourced Accounting Firm?

Choosing an outsourced accounting firm can feel complicated when every provider offers a different service model. What matters is whether the firm can handle your actual workload without adding more admin. Look at your compliance needs, transaction volume, reporting requirements, and plans for growth before making a decision.

If you want accounting and tax support alongside broader corporate services in Singapore, Duellix can be a practical next step. You can review the service options, ask about what's included, and discuss your needs directly before committing. Contact Duellix about your accounting needs

References

1. https://abmagazine.accaglobal.com/global/articles/2025/may/business/outsourcing-on-the-rise.html
2. https://aciperspectives.com/2022/10/26/from-digital-to-real-economies-lessons-from-singapores-digital-economy-agreements/