Why more US CPA firms are turning to accounting outsourcing companies in Vietnam in 2025

This article is a submission by Bestarion. Bestarion is a leading outsourcing company in Vietnam with 20+ years of experience bringing innovative IT & Business Solutions to clients worldwide.

In 2025, U.S. Certified Public Accounting (CPA) firms are increasingly outsourcing accounting services to Vietnam. This trend is driven by Vietnam’s rapid growth in the Business Process Outsourcing (BPO) sector, offering cost-effective, skilled, and technologically advanced solutions.

This guide delves into the factors propelling this shift and why Vietnam stands out as a premier destination for accounting outsourcing.

Vietnam’s emergence as a global accounting outsourcing hub

Impressive market growth

Vietnam’s accounting outsourcing industry is experiencing significant growth. In 2025, the country’s BPO market is projected to generate approximately US$653.39 million in revenue, reflecting a robust compound annual growth rate (CAGR) of 9.22% from 2024 to 2032.

This growth is underpinned by the country’s strong economic performance, with a reported GDP growth of 7.6% year-over-year in Q4 2024, surpassing the annual target of 7.1%. ​

According to Deloitte’s 2024 Vietnam Economic Outlook, the country’s growing digital services sector and skilled workforce are drawing increased interest from global firms seeking reliable outsourcing destinations.

As Vietnam strengthens its capabilities in finance and BPO services, U.S. CPA firms are increasingly looking to the country as a cost-effective and scalable partner for accounting support.

Cost-effective solutions

One of the primary drivers for U.S. CPA firms outsourcing to Vietnam is cost efficiency. Businesses can achieve significant cost savings, with reductions of 35–58% in operational expenses by outsourcing financial processes.

This financial advantage allows firms to allocate resources more strategically and invest in other critical areas.​

Skilled workforce and technological integration

Vietnam boasts a large pool of skilled professionals in the accounting sector. The country’s emphasis on education and training has resulted in a workforce proficient in international accounting standards and practices.

Moreover, the adoption of cloud computing, automation, and data analytics enhances efficiency and reduces manual tasks by 20–25%, providing valuable insights into financial data. ​

Factors driving U.S. CPA firms to outsource to Vietnam

1. Cost savings

Outsourcing to Vietnam offers substantial cost advantages. Labor costs are significantly lower compared to the U.S., allowing CPA firms to reduce expenses without compromising on quality.

This financial benefit is particularly appealing for firms looking to maximize profitability.​

2. Access to skilled professionals

Vietnam’s focus on education has produced a workforce with strong expertise in accounting and finance. Professionals are well-versed in international accounting standards, making them suitable partners for U.S. firms seeking reliable and competent support.​

3. Technological advancements

The integration of advanced technologies in Vietnam’s accounting sector enhances service delivery. Automation and data analytics streamline processes, reduce errors, and provide real-time financial insights, enabling U.S. CPA firms to make informed decisions.​

4. Time zone advantage

Vietnam’s time zone (GMT+7) allows for a seamless workflow between U.S. firms and Vietnamese outsourcing partners. Tasks assigned at the end of the U.S. workday can be completed overnight in Vietnam, ensuring rapid turnaround times.

Challenges and considerations

While outsourcing to Vietnam presents numerous benefits, U.S. CPA firms should be mindful of potential challenges:

• Data security: Ensuring the protection of sensitive financial information is paramount. Firms must verify that Vietnamese partners adhere to stringent data security protocols.​
• Regulatory compliance: Understanding and navigating the regulatory landscape in both countries is essential to maintain compliance and avoid legal complications.​
• Cultural differences: Awareness of cultural nuances can facilitate better communication and collaboration between U.S. firms and Vietnamese partners.

What accounting services are commonly outsourced to Vietnam?

Accounting outsourcing to Vietnam has evolved from basic bookkeeping to advanced financial services. Here are the primary services U.S. CPA firms typically outsource:

1. Bookkeeping and general accounting
Outsourcing daily transaction recording, maintaining general ledgers, and preparing trial balances helps U.S. firms save costs while ensuring accuracy and compliance.

2. Payroll processing
Companies outsource payroll tasks like salary calculations, tax computations, and compliance with tax laws to Vietnam to avoid administrative burdens.

3. Tax filing and compliance
Vietnam-based accountants assist with corporate tax returns, VAT filings, and income tax compliance, following U.S. GAAP and IFRS standards.

4. Financial reporting and analysis
Firms outsource financial statement preparation, budgeting, and forecasting to Vietnam, leveraging tools like QuickBooks and NetSuite for accurate reporting.

5. Accounts Payable (AP) and Accounts Receivable (AR)
U.S. companies outsource AP/AR functions to ensure smooth cash flow, invoice management, and timely payments while controlling credit.

6. Management accounting
Outsourcing cost analysis, budgeting, and profitability reports helps U.S. firms make data-driven decisions without the overhead.

7. Financial auditing
Vietnam firms conduct internal and external audits, ensuring regulatory compliance at a lower cost.

8. Accounts reconciliation
Regular reconciliation of bank accounts and ledgers is outsourced to Vietnam to identify discrepancies quickly.

9. Financial software support
Vietnamese firms implement and maintain financial software solutions like Xero and QuickBooks, streamlining processes and improving efficiency.

10. Forensic accounting and fraud prevention
Forensic accounting services, including fraud investigations and financial irregularities detection, are increasingly outsourced to Vietnam.

Security and compliance: How Vietnam ensures peace of mind for U.S. firms

Data security and regulatory compliance are top concerns for CPA firms considering outsourcing. Vietnam’s top outsourcing providers understand this and have made significant investments to meet international standards.

International certifications

Many Vietnamese firms hold certifications such as ISO/IEC 27001, which ensures comprehensive information security management systems. Several are also SOC 2 compliant, which aligns with U.S. requirements for service organizations.

U.S. financial and regulatory compliance

Outsourced accountants in Vietnam are trained in U.S. GAAP, IRS codes, and even Sarbanes-Oxley (SOX) compliance. This allows them to confidently manage tasks for CPA firms and U.S. corporate clients.

Secure infrastructure and tools

Top providers utilize:

• VPNs and secure access gateways
• Two-factor authentication
• Role-based access controls
• Secure cloud accounting platforms (e.g., NetSuite, QuickBooks Online, Zoho Books)

These tools help ensure that sensitive data remains protected at all times.

Confidentiality and legal safeguards

Employee confidentiality agreements, regular security training, and internal audits are standard practice. Contracts often include non-disclosure clauses, data residency rules, and service level agreements to further assure clients.

Government regulation

Vietnam’s Decree No. 13/2023/ND-CP on personal data protection aligns the country more closely with international privacy norms, building further trust among global clients.

These robust measures give U.S. CPA firms confidence that their clients’ financial data will be handled securely, professionally, and in compliance with international laws.

The trend of U.S. CPA firms outsourcing accounting services to Vietnam is poised to continue its upward trajectory in 2025. Vietnam’s combination of cost-effective solutions, skilled professionals, technological integration, and favorable time zone positioning makes it an attractive destination for accounting outsourcing.

By carefully selecting reputable accounting outsourcing partners and proactively addressing potential challenges, U.S. firms can fully leverage Vietnam’s growing capabilities to enhance their operations and competitiveness.