Best 12 Accounting Firms in Singapore (2026 Update)

The best accounting firms in Singapore depend on your company size, compliance needs, and budget. Large corporations often work with Deloitte, EY, KPMG, PwC, or BDO for audit and advisory depth, while SMEs and foreign-owned startups may prefer practical providers such as BBCIncorp for accounting, tax, payroll, and compliance support.

This guide compares 12 accounting firms in Singapore by tier, service strengths, ideal clients, and key limitations, helping business owners shortlist the most suitable accounting partner for their Singapore company.

Top 12 Accounting firms in Singapore

Accounting firms in Singapore can be grouped into three practical tiers: large global firms, mid-tier accounting networks, and local SME-focused providers. This structure helps companies compare providers by service depth, pricing expectations, client fit, and compliance capability.

Comparison of the best accounting firms in Singapore:

Big Four accounting firms in Singapore

Big Four accounting firms in Singapore refer to Deloitte, EY, KPMG, and PwC. These firms are usually best suited for large corporations, listed companies, multinational groups, regional headquarters, and businesses with complex audit, tax, governance, transaction, or advisory needs.

For statutory audit work in Singapore, businesses should also check whether the relevant public accountant or accounting entity is registered with ACRA, as ACRA states that public accountants and accounting entities must register with ACRA to carry out independent statutory audits.

1. Deloitte Singapore

Deloitte Singapore operates as part of Deloitte Southeast Asia, an integrated regional network covering Southeast Asian markets. Deloitte Southeast Asia reports more than 500 partners and 13,000 professionals across the region, while its services span audit and assurance, tax and legal, consulting, financial advisory, and risk advisory.

Key services:

• Audit and assurance
• Tax and legal advisory
• Consulting
• Financial advisory
• Risk advisory
• Regulatory and internal control support

Potential limitation:

• Premium pricing and a large-firm engagement model may not be practical for startups or SMEs that only need routine bookkeeping, payroll, tax filing, or annual compliance.
• Smaller companies may experience longer onboarding or a less flexible service structure compared with boutique or SME-focused providers.

Best for: Deloitte is best suited for multinational corporations, listed companies, regulated businesses, government-linked entities, and complex groups that require audit, tax, consulting, risk advisory, financial advisory, or cross-border reporting support.

2. EY Singapore

EY Singapore is part of the EY global organization, providing assurance, consulting, strategy, tax, and transaction services. EY reported global revenue of US$53.2 billion for FY25 and around 406,000 people globally, with services delivered across more than 150 countries and territories.

Key services:

• Assurance
• Consulting
• Tax
• Strategy and transactions
• Cross-border tax and business advisory
• Digital transformation support

Potential limitation:

• EY may not be the most cost-effective option for small companies with straightforward accounting and compliance needs.
• Startups and SMEs that mainly need bookkeeping, GST, payroll, and tax filing may find local or digital providers more practical.

Best for: EY is best suited for enterprises, regional groups, and companies undergoing transformation, expansion, transaction planning, or complex tax and assurance work.

3. KPMG Singapore

KPMG Singapore is part of the KPMG global organization of independent professional services firms. KPMG states that its firms operate in 138 countries and territories with more than 276,000 partners and employees, providing audit, tax, and advisory services.

Key services:

• Audit and assurance
• Tax services
• Advisory
• Enterprise services
• Governance and risk-related support
• Sector-specific professional services

Potential limitation:

• KPMG’s service structure and cost level may not suit smaller businesses with simple bookkeeping or annual tax filing needs.
• SMEs may not need the scale of a Big Four firm unless they have investor reporting, audit complexity, or regional group requirements.

Best for: KPMG is best suited for large enterprises, regional headquarters, IPO-ready businesses, and organizations with complex reporting, governance, tax, or advisory needs.

4. PwC Singapore

PwC Singapore operates as part of the PwC global network, which reports 364,782 people across 136 countries. In Singapore, PwC provides assurance, consulting, corporate support services, deals, risk, sustainability, tax, workforce, and customs and trade services. PwC Singapore also reported that it audited the highest number of new companies listed on SGX in 2025, with five IPO deals.

Key services:

• Assurance
• Consulting
• Corporate support services
• Deals and transactions
• Risk and sustainability
• Tax and workforce services
• Customs and trade advisory

Potential limitation:

• PwC may be too resource-intensive for early-stage startups or small private companies with basic bookkeeping and filing needs.
• Its service model is better suited to companies with complex assurance, transaction, capital market, or advisory requirements.

Best for: PwC is best suited for large corporations, institutional investors, listed companies, and complex groups that need assurance, deals, ESG, tax, consulting, or capital markets support.

Mid-Tier and international accounting networks in Singapore

Mid-tier and international network firms are suitable for growing companies that need stronger audit, tax, advisory, and business support capabilities than a small local provider, but may not need the scale or fee level of a Big Four firm.

This group includes BDO, Baker Tilly, RSM, and AG Singapore. These providers are often relevant for regional companies, family-owned enterprises, and companies preparing for expansion, restructuring, IPO readiness, or more formal reporting.

5. BDO Singapore

BDO Singapore was established in 1972 and describes itself as a full-service audit, tax, and business advisory firm serving SMEs, large privately held businesses, and multinational corporations. The firm reports more than 600 professionals in Singapore, while the BDO network covers 164 countries and territories with 119,600 professionals across 1,800 offices.

Key services:

• Audit and assurance
• Tax
• Business advisory
• Business services outsourcing
• Corporate secretarial services
• ESG and sustainability
• Risk advisory
• Digital advisory

Potential limitation:

• BDO is not part of the Big Four, so companies that specifically need Big Four branding for investors, banks, or group reporting should take this into account.
• It may still be more structured and costly than smaller local providers for very simple bookkeeping needs.

Best for: BDO Singapore is best suited for SMEs, large private businesses, subsidiaries, and multinational companies that need international network coverage with a mid-market service focus.

6. Baker Tilly Singapore

Baker Tilly Singapore operates as Baker Tilly TFW LLP, trading as Baker Tilly, and is a member of Baker Tilly International. Its Singapore website reports Baker Tilly International’s worldwide revenue of US$6.8 billion, 754 offices, 50,400 people, and presence across 147 territories.

Key services:

• Assurance and audit
• Tax advisory
• Capital markets and IPO support
• GST and transfer pricing
• Governance and risk
• ESG and sustainability
• Restructuring and recovery
• Deal advisory
• Corporate solutions

Potential limitation:

• Baker Tilly may be more suitable for structured audit, tax, IPO, and advisory work than for very small businesses seeking low-cost monthly bookkeeping.
• Companies with simple compliance needs may prefer a lighter SME-focused accounting package.

Best for: Baker Tilly Singapore is best suited for entrepreneurs, family-owned enterprises, not-for-profit organizations, listed companies, IPO-ready businesses, and multinational groups that need audit, tax, and advisory support.

7. RSM Singapore

RSM Singapore states that it is the largest professional services firm outside the Big Four in Singapore and a member of RSM, a global network focused on the middle market. The firm provides assurance, tax, advisory, and business solutions, with a focus on helping growing businesses optimize profits, enhance business value, and internationalize.

Key services:

• Assurance
• Tax
• Advisory
• Business solutions
• Payroll and accounting support
• Corporate compliance and governance
• Technology consulting and managed services

Potential limitation:

• RSM may not be the most budget-friendly option for micro-enterprises or very small companies with only basic bookkeeping and annual tax filing needs.
• Its service model is more suitable for companies that need middle-market advisory, regional support, or broader business solutions.

Best for: RSM Singapore is best suited for growing businesses, middle-market companies, ASEAN-focused groups, and foreign businesses operating in Singapore.

8. AG Singapore

AG Singapore, also known as Ackenting Group, describes itself as a group of award-winning mid-tier accounting firms headquartered in Singapore with a presence in Malaysia. The firm highlights over 260 five-star Google reviews, a technology-driven accounting approach, and services designed for SMEs and growing enterprises.

Key services:

• Audit
• Accounting and bookkeeping
• Tax
• GST
• Payroll
• Corporate secretarial services
• Financial reporting
• Company incorporation and advisory support

Potential limitation:

• AG should not be described as a Big Four firm; it is better positioned as a mid-tier Singapore provider.
• Its published fees are in SGD, so any HKD reference should be treated only as an exchange-rate estimate, not an official HKD price.

Best for: AG Singapore is best suited for growing companies, and businesses that need accounting, audit, tax, GST, payroll, and corporate advisory support from a local mid-tier provider.

Local and digital accounting providers for SMEs in Singapore

Local and digital accounting providers are often more practical for startups, SMEs, eCommerce businesses, foreign-owned private companies, and founders who need responsive support for routine compliance.

These providers usually focus on bookkeeping, financial statements, tax filing, payroll, GST, XBRL, corporate secretarial work, and audit coordination. For smaller companies, this service model can be more useful than a premium audit-led engagement.

9. BBCIncorp Singapore

BBCIncorp Singapore — operating under the registered entity BBCIncorp Pte. Ltd. — was established in 2019 as part of BBCIncorp Group, which was founded in 2017. The group supports businesses across more than 18 jurisdictions through three offices in Hong Kong, Singapore, and Vietnam.

A certified Xero Gold Partner, BBCIncorp delivers scalable cloud-based accounting solutions for SMEs and global enterprises. The firm also operates a tech-enabled corporate services platform — including a dedicated Client Portal and AI-powered support tools — to streamline communication, document tracking, and client service management for businesses at every stage of growth.

Key services:

• Cloud-based accounting through Xero
• Bookkeeping and financial reports
• Payroll assistance
• Tax filing support
• GST registration and filing
• XBRL preparation
• Auditor liaison
• Dormant company accounting
• Company incorporation and compliance support

Potential strength:

• Digital-driven workflow: BBCIncorp uses digital tools such as Client Portal and gradually adopts AI-powered support to improve communication, document tracking, and client service efficiency.
• Integrated support model: helps founders manage accounting-related matters within a broader corporate service ecosystem, reducing the need to coordinate with multiple separate providers.
• Transparent pricing: offers clear service scopes and transparent pricing, helping SMEs understand what is included and avoid unexpected hidden fees.

Potential limitation:

• BBCIncorp may be less suitable for listed companies or large corporations that require complex assurance, capital market advisory, or transaction support from a Big Four firm.
• Companies requiring highly specialized audit opinions or investor-facing assurance may need to engage an ACRA-registered public accounting entity or a larger audit network.

Best for: BBCIncorp’s accounting services in Singapore are best suited for startups, SMEs, foreign-owned companies, eCommerce businesses, and cross-border founders that want accounting support connected with broader corporate administration.

10. WLP Group

WLP Group was founded in 2013 and describes itself as a Singapore accounting and tax advisory firm that combines local compliance expertise with cloud-based technology and practical business insights. Its official website also highlights AI-driven bookkeeping and financial reporting support.

Key services:

• Accounting
• Bookkeeping
• Tax advisory
• Corporate secretarial services
• Compliance support
• Payroll
• Xero cloud accounting support
• Business advisory

Potential limitation:

• WLP’s official pages do not clearly publish a firm-wide headcount, so the article should avoid unsupported claims about staff size.
• Businesses requiring Big Four-level assurance, complex transaction advisory, or multinational audit coordination may need a larger international network.

Best for: WLP Group is best suited for startups, SMEs, foreign-owned businesses, entrepreneurs, and growth companies that need accounting, tax, corporate secretarial, compliance, and cloud-based financial administration support.

11. Osome Singapore

Osome is a Singapore-headquartered AI-driven company management platform. The company states that it has served 40,000 founders, startups, and SMBs across Singapore, Hong Kong, the United Kingdom, and the UAE, combining human expertise with proprietary AI technology for incorporation, accounting, and tax compliance.

Key services:

• Company incorporation
• Accounting
• Bookkeeping
• Tax filing
• Corporate secretarial services
• Expense tracking
• Invoicing tools
• Cash flow visibility
• eCommerce accounting support

Potential limitation:

• Osome’s platform-led model may not be the best fit for companies needing complex audit advisory, bespoke tax structuring, or high-touch corporate finance support.
• Businesses requiring statutory audit should still check whether audit work is handled by properly registered professionals.

Best for: Osome is best suited for startups, small businesses, eCommerce sellers, digital-first founders, and remote business owners that want technology-enabled accounting and corporate administration.

12. Sleek Singapore

Sleek is a Singapore-founded, tech-enabled corporate services platform. Its official website states that Sleek has helped launch 450,000+ businesses globally, serves 15,000+ active customers worldwide, and has 500+ employees providing tech-enabled, human-led service across Singapore, Hong Kong, the United Kingdom, and Australia.

Key services:

• Company incorporation
• Corporate secretary support
• Accounting and bookkeeping
• Payroll
• Tax support
• Audit support
• Business account support
• Compliance-ready bookkeeping and reporting

Potential limitation:

• Sleek’s package-based model may not suit businesses that need complex group restructuring, advanced transfer pricing, or Big Four-level assurance.
• Companies with highly customized advisory needs may require a more specialized accounting or audit provider.

Best for: Sleek is best suited for startups, SMEs, freelancers, contractors, and digital-first businesses that prefer online workflows, bundled corporate services, and transparent package-based support.

Types of accounting firms in Singapore

Singapore’s accounting landscape is as diverse as its economy. From global networks serving multinational corporations to boutique firms guiding emerging startups, accounting firms in Singapore offer distinct strengths tailored to different business needs. Understanding these categories helps enterprises identify the right level of expertise and partnership required for their growth.

Global vs. local accounting firms

Global firms, including the Big 4 (Deloitte, EY, KPMG, and PwC) and other international networks such as BDO, RSM, and Baker Tilly, dominate the list of top accounting firms in Singapore. They are known for their extensive resources, advanced technology, and cross-border expertise. Local firms, in contrast, build their reputation through personalized service, in-depth understanding of Singapore’s regulatory environment, and competitive pricing.

For large multinational corporations, these audit firms in Singapore offer global consistency and network reach. Meanwhile, SMEs and growing businesses often find that local firms provide the agility and attention necessary for hands-on support.

Boutique and mid-tier firms

Apart from global and local providers, Singapore’s accounting market is also home to a dynamic group of boutique and mid-tier firms that offer specialized and flexible services. These smaller yet highly skilled teams combine technical expertise with client-centered service. They often work with startups, e-commerce companies, and fast-growing enterprises that value adaptability and direct communication.

Their key advantage lies in flexibility, with tailored service packages, industry-specific knowledge, and faster response times. For many businesses, these firms represent the perfect balance between affordability and sophistication, offering the professionalism of large providers without excessive formality.

As Singapore continues to promote innovation and entrepreneurship, boutique and mid-tier firms are increasingly becoming trusted partners for companies seeking scalable and practical accounting support.

How to choose the right accounting firm for your business

Choosing the right accounting firm in Singapore depends on your company size, compliance needs, budget, and whether you need bookkeeping only or broader support across tax, payroll, GST, XBRL where applicable, and corporate compliance.

Assess business size & requirements

A local startup or small private company may not need to overpay for a Big Four firm if its needs are mainly bookkeeping, tax filing, payroll, GST support, and annual compliance.

Mid-tier, boutique, or SME-focused providers can often handle routine ACRA and IRAS requirements more practically, while Big Four firms are usually better suited for listed companies, multinational groups, complex audits, transactions, and investor-facing reporting.

All Singapore companies must file annual returns with ACRA, while companies are generally required to report income to IRAS through Form C-S, Form C-S (Lite), or Form C.

Verify credentials & technology

Businesses should check whether the provider has qualified accounting professionals, audit coordination capability where needed, and experience or certification with cloud platforms such as Xero or QuickBooks.

This is becoming more important as Singapore moves toward digital tax administration. According to IRAS’s Committee of Supply, GST-registered businesses will be required to submit invoice data through the InvoiceNow network progressively, with all remaining GST-registered businesses covered by April 2031⁽¹⁾.

Evaluate cost vs. value

Budget standalone bookkeeping may be enough for a simple company with low transaction volume. However, growing businesses often gain better value from integrated service bundles that combine accounting, tax filing, GST, XBRL where applicable, and corporate secretarial support, especially when they need fewer vendors, cleaner records, and smoother year-end reporting.

If statutory audit is required, the company should also confirm whether the audit work will be handled by an ACRA-registered public accountant or public accounting entity.

Regulatory bodies and standards for accounting firms

Accounting and audit services in Singapore are governed by different regulatory layers. General accounting, bookkeeping, tax preparation, and corporate advisory services are not regulated in the same way as statutory audit services. According to ACRA’s types of accounting entities guide⁽²⁾, businesses do not need to register as public accountants or public accounting entities if they only provide non-public accountancy services such as bookkeeping, tax advice, corporate advisory, financial consulting, or general accounting work.

For statutory audit and public accountancy services, the regulatory requirements are stricter. Public accountants and public accounting entities must register with ACRA before carrying out independent statutory audits or providing public accountancy services, including auditing and reporting on financial statements.

Oversight by the Accounting and Corporate Regulatory Authority (ACRA)

ACRA serves as Singapore’s primary regulator for business registration, financial reporting, public accountants, public accounting entities, and corporate service providers. Public accountants and public accounting entities must be registered with ACRA before carrying out independent statutory audits or public accountancy services, including auditing and reporting on financial statements.

The authority oversees:

• Licensing and registration: Public accountants must hold a valid certificate of registration issued by ACRA and renew their registration annually, subject to renewal requirements including continuing professional education.
• Compliance monitoring: ACRA monitors audit quality through regulatory oversight and practice monitoring to ensure public accountants and public accounting entities comply with applicable professional and auditing standards.
• Public register: Businesses can use ACRA’s public accountancy and Bizfile search functions to verify registered public accountants or public accounting entities before engaging them for statutory audit work.

By enforcing these standards, ACRA ensures that accounting practices remain transparent, reliable, and aligned with Singapore’s status as a trusted financial hub.

Role of the Institute of Singapore Chartered Accountants (ISCA)

ISCA acts as Singapore’s national accountancy body, supporting professional qualification, ethical conduct, and continuing professional development for accountants.

Its responsibilities include:

• Professional standards and certification: ISCA administers the Singapore Chartered Accountant Qualification and is the designated entity to confer the Chartered Accountant of Singapore, or CA (Singapore), designation.
• Ethics and conduct: ISCA members must observe the ISCA Code of Professional Conduct and Ethics, which sets expectations for professional behaviour, integrity, and ethical conduct.
• Professional directory: The ISCA Directory profiles professional service firms and ISCA members, helping businesses identify accountancy, finance, and business service providers. However, for statutory audit work, businesses should still verify ACRA registration.

Together, ACRA and ISCA support Singapore’s accountancy ecosystem by combining statutory regulation, audit oversight, professional ethics, and industry development.

How much do accounting services cost in Singapore?

Accounting service fees in Singapore vary depending on several factors, including:

• Monthly transaction volume
• Annual revenue
• Reporting frequency
• GST registration status
• Payroll needs
• XBRL requirements, where applicable
• Whether the company requires statutory audit or audit coordination
• Number of bank accounts
• Currencies used
• Financial statement preparation needs
• Cross-border structure, overseas shareholders, or subsidiaries

A small company with simple bookkeeping will usually need a lighter accounting package. In contrast, a growing business with multiple bank accounts, foreign-currency transactions, employees, GST obligations, and regular management reporting will usually require broader accounting support.

Companies that need unaudited or audited financial statements, XBRL conversion where applicable, audit coordination, or accounting support for multi-jurisdiction operations should expect a more customized quote.

Conclusion

Choosing among the top accounting firms in Singapore depends on your company’s size, complexity, and compliance priorities. Big Five firms are more suitable for large corporations and complex audit needs, mid-tier firms are practical for growing regional businesses, and local accounting firms are often the best fit for startups, SMEs, and foreign-owned companies.

For businesses that need responsive accounting, tax, GST, XBRL, payroll, and compliance support, BBCIncorp offers a practical local option backed by international corporate services experience.

Kindly reach out to our team today at service@bbcincorp.com to explore how BBCIncorp can support your Singapore business. We are ready to provide timely assistance!

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