If you are already doing business in Vietnam and looking for tax advisory support, the harder question is often not whether to hire someone, but which services a tax consultant Vietnam actually offers. Some firms only handle monthly filings. Others also cover VAT refunds, tax health checks, inspection support, and transfer pricing. The scope is not the same, and the right package depends on where your company is in its operating cycle.

This article maps the tax advisory Vietnam services most commonly provided in the market: the routine accounting – tax work that keeps filings on time, the specialized work that protects cash flow and inspection risk, and the point at which an FDI company should bring in a professional partner. The goal is to give you a clear picture of tax compliance Vietnam support before you choose a consultant.

1. What Accounting & Tax Consultant Services Cover Each Month

For FDI companies, the role of a tax consultant Vietnam never stands alone as “someone who just files returns.” It must be tied to the internal accounting system. Periodic tax compliance Vietnam requires absolute accuracy from incoming source documents through to the data submitted on the Tax Authority’s system.

Below are the monthly and quarterly tasks that a professional tax advisory firm performs for FDI companies:

• Document recording and e-invoice review: Receive all incoming and outgoing invoices and bank documents; review the legality, validity, and reasonableness of e-invoices on the General Department of Taxation portal to prevent risks from invoices issued by absconding or inactive companies.
• Full identification of tax obligations arising in the period: Accurately assess the taxes the company must pay, including Value-Added Tax (VAT), Corporate Income Tax (CIT), Personal Income Tax (PIT), Foreign Contractor Tax (FCT), and the business license fee.
• Preparation and on-time filing of tax returns: Build tax computation worksheets, prepare VAT and PIT returns on a monthly or quarterly basis, and file them through the e-tax portal before the statutory deadlines (the 20th of the following month or the last day of the first month of the following quarter), completely eliminating the risk of late-filing penalties.
• Review of VAT deduction conditions and non-cash payment rules: Strictly check input VAT deduction conditions, especially the mandatory bank-transfer requirement for invoices of VND 5 million or more, and verify valid bank payment evidence.
• Monitoring and balancing CIT provisional payments: Provisionally calculate actual quarterly profit to determine the CIT amount payable in advance, ensuring that the total provisional CIT paid over four quarters is not lower than 80% of the CIT payable on the annual finalization, thereby avoiding late-payment interest.
• Monitoring of Foreign Contractor Tax (FCT): Declare and pay FCT promptly whenever outbound payments arise to international suppliers (software royalties, consulting fees, commercial commissions, foreign loan interest, etc.), preventing reassessment risk from omitted transactions.
• Consolidated reporting for the Board of Directors and Headquarters: Prepare tax-obligation summaries and management reports in English and Vietnamese so that management in Vietnam and the overseas parent company can easily track cash flow and compliance status.

Vina TPT’s professional view: A full-package tax compliance service must deliver three core elements: clean accounting books + accurate tax returns + figures that reconcile between accounting and tax. If any one of these is missing, the tax position will be off even if the company still “files on time.”

2. When You Need Deeper Tax Consultant Support

Monthly filing work only keeps the company on the correct administrative rhythm. The actual operations of FDI companies regularly give rise to complex matters that require in-depth tax advisory Vietnam capability:

• VAT refund consulting and implementation: For FDI companies with new investment projects or export businesses, the amount of undeducted input VAT is often substantial. A tax consultant Vietnam will review the entire legal dossier, the validity of invoices, export contracts, and bank payment evidence, then file the application and explain it directly to the Tax Authority in order to recover the refund into the company’s account.
• Tax Health Check: A full review of the accounting books, tax returns, and supporting documents of prior financial years. This work helps the company proactively detect errors, non-deductible expenses, or potential violations before a tax inspection, fundraising, M&A, or share transfer takes place.
• Inspection dossier preparation and representation before the Tax Authority: When a tax inspection or audit decision is issued, the advisor helps collect documents and prepare detailed explanations of sensitive expense items (entertainment, expatriate costs, foreign-exchange differences, etc.) in order to protect reasonable expenses as far as possible and minimize reassessment risk.
• Related-party transaction management and Transfer Pricing (TP) documentation: Most FDI companies have transactions with the parent company or other related parties. The tax advisor is responsible for identifying the scope of related-party transactions, preparing the related-party transaction appendix attached to the CIT finalization return, and building the Transfer Pricing documentation set (Local File and Master File) in strict compliance with Decree 132/2020/NĐ-CP.

3. When Does an FDI Company Need a Tax Consultant?

An FDI company should proactively look for a professional tax advisory partner when it falls into one of the following situations:

• Newly established FDI company: It does not yet have a dedicated accounting and tax team that fully understands the Vietnamese legal system and needs to set up the initial books and compliance processes correctly.
• Need for a VAT refund: It wants to shorten the refund timeline and ensure that the input dossier meets the Tax Authority’s inspection standards so that cash can be released sooner.
• Related-party transactions: It needs advice on preparing Transfer Pricing documentation to the required standard in order to avoid the risk of the Tax Authority imposing prices and assessing additional CIT.
• Change in capital structure or business model: It needs advice on the tax obligations arising from a capital transfer, asset transfer, or corporate restructuring.
• Several years of operation without a proper tax finalization review: It is not certain that prior periods were fully compliant and needs a Tax Health Check to address risks proactively before an inspection decision is issued.

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4. What to Look for When Choosing a Tax Consultant in Vietnam

When selecting a tax compliance Vietnam partner, the Board of Directors should assess the following practical capability criteria:

• Hands-on experience with FDI clients: A deep understanding of the relationship between VAS and IFRS, a firm grasp of Vietnamese tax regulations, and familiarity with the reporting culture of multinational groups.
• Valid practicing certificates: Both the firm and its staff must hold the Certificate of Practice in Tax Procedure Services and the Accountant / Chief Accountant certificate as required by law.
• Multi-level quality control (QC): Accounting data and tax returns must pass through at least two to three review layers (Specialist → Team Leader → Chief Accountant / Tax Director) before official filing.
• Multilingual communication and reporting: The ability to advise and prepare management reports clearly in English and Vietnamese, enabling Headquarters to monitor compliance with ease.
• Transparent service contract: A clear scope among monthly filing work, in-depth advisory, inspection support, and Transfer Pricing documentation.
• Integrated payroll and accounting: Seamless connection between payroll processing and tax filing so that financial data remains consistent and no discrepancies arise at year-end finalization.

5. How Vina TPT Works as a Tax Consultant for FDI Companies

As a specialist advisory firm in finance, accounting, and tax for foreign-invested enterprises in Vietnam, Vina TPT delivers a two-layer tax advisory solution that helps companies optimize costs and control risk comprehensively.

The service areas Vina TPT implements for FDI companies include:

• Recurring work: Full-package filing of VAT, CIT, PIT, and FCT; review of the legality of incoming documents; bookkeeping under VAS; payroll administration; and provision of a Chief Accountant.
• Specialized work: Preparation of VAT refund dossiers; Tax Health Checks of prior-year books; preparation of inspection files and direct liaison during a tax inspection; and related-party transaction advisory and documentation.

Is your FDI company looking to review its current tax obligations in full, or do you need a reputable tax advisory partner for the long term? Contact Vina TPT today for a consultation on the most suitable service package – accurate, optimized, and free of unnecessary extra costs.

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Vietnam Tax Updates August 2026: Key VAT, CIT, PIT, Foreign Contractor Tax, Tax Administration Changes

Vietnam’s tax landscape continues to evolve, with several important changes and clarifications taking effect or being introduced in August 2026. This month’s updates cover key developments in Value Added Tax (VAT), Corporate Income Tax (CIT), Personal Income Tax (PIT), Foreign Contractor Tax (FCT), and tax administration.

Businesses and foreign-invested enterprises operating in Vietnam should pay close attention to these changes to stay compliant, avoid potential tax risks, and ensure timely adjustments to their tax and accounting practices.

New provisions regarding the tax period for newly established taxpayers and VAT refund applications for goods and services subject to the 5% VAT rate.

1. Tax calculation period for newly operating taxpayers

– According to Circular 89/2026/TT-BTC, updated and amended in Official Letter No. 5746/CT-CS dated August 10, 2026, newly established enterprises are allowed to default to quarterly VAT declarations. However, if the enterprise’s revenue in its first calendar year exceeds VND 50 billion (even if the enterprise has operated for less than 12 months in that financial year), it must mandatorily switch to monthly VAT declarations starting from the immediate next calendar year.

2. VAT Refund Dossier for Goods and Services subject to the 5% VAT rate

– New regulations govern the components of the input VAT refund application dossier for manufacturing goods and supplying services subject to the preferential 5% VAT rate. Accordingly, starting from the July 2026 tax period, taxpayers are required to declare the VAT refund claim directly on the VAT Return (Form No. 01/GTGT) and submit together with the Appendix on VAT Refund Claim Information (Form No. 01-8/GTGT) as the basis for the tax authority to review and process the refund request.

30% CIT Reduction for Tax Periods 2026 and 2027

According to the Resolution of the National Assembly on CIT reductions voted and approved on the afternoon of August 24, 2026, at the First Extraordinary Session of the 16th National Assembly

– A 30% reduction of CIT payable is granted to enterprises and organizations legally established under Vietnamese law with an annual total revenue of no more than VND 10 billion for the 2026 and 2027 tax periods. For enterprises currently enjoying other CIT incentives, the reduced tax amount will be calculated based on the actual CIT payable after deducting those existing tax incentives. For enterprises currently enjoying other CIT incentives, the reduced tax amount will be calculated based on the actual CIT payable after deducting those existing tax incentives. This Resolution takes effect from August 24, 2026, and applies directly to the tax periods of 2026 and 2027.

30% reduction of PIT payable for the tax periods of 2026 and 2027 for business individuals

Pursuant to Official Letter No. 7299/CTH-QLDN1 dated August 17, 2026 guiding the implementation of Decree No. 253/2026/NĐ-CP and the new PIT Law

30% reduction of PIT payable for the tax periods of 2026 and 2027 for business individuals

– Implementing a 30% reduction of PIT payable on income arising from production and business activities of resident individuals (including business households and individual businesses) with an annual revenue of no more than VND 10 billion.

Some Key Updates to Tax Administration Regulations

According to Circular 89/2026/TT-BTC updated in Official Letter 5746/CT-CS (August 10, 2026) and several new points in Circular 94/2026/TT-BTC

1. Shortening the time limit for tax payment extensions and late payment interest waivers

– The maximum time limit for tax authorities to assess and resolve dossiers requesting tax payment extensions, penalty waivers, or late payment interest waivers for enterprises is shortened from 10 working days to 07 working days.

2. Prioritizing tax refunds for highly compliant enterprises

According to the guidance in Circular No. 94/2026/TT-BTC on tax risk management, applying 3 risk levels: High risk, Medium risk, and Low risk

– High Risk: For taxpayers with high-risk tax refund dossiers, physical inspection at headquarters will be increased, with a mandatory “inspect first, refund later” approach applied to VAT, and post-refund audits conducted within 1 year.

– Medium Risk: For taxpayers with medium-risk tax refund dossiers: Within 03 years from the date of issuance of the refund decision, tax authorities will apply the “refund first, inspect later” method.

– Low Risk: For taxpayers with low-risk tax refund dossiers: Within 05 years from the date of issuance of the refund decision, tax authorities will apply the “refund first, inspect later” method.

3. General regulations on tax filing, calculation, and allocation

– Pending address changes: In case the tax filing deadline is due but the taxpayer has not completed procedures to change the headquarters address with the business registration authority or the tax office of the destination, the taxpayer must submit tax filing to the tax office of the departure location.

– Incorrect allocation: In case audits find that the taxpayer declared or allocated incorrectly, the directly managing tax authority will re-determine the amount to be allocated to the recipient provinces and handle administrative violations as prescribed (if any).

– No late payment interest on incorrect allocation: In case the taxpayer pays fully and on time but to the incorrect allocation area, the taxpayer will not have to pay late payment interest for the underpaid tax amount in the receiving allocation area. The directly managing tax authority will guide the taxpayer on performing a tax review or a refund-cum-offset procedure to adjust the revenue to the correct jurisdiction.

Amendment to the Tax Finalization Requirements upon Completion of a Foreign Contractor Agreement

Pursuant to Official Letter No. 5746/CT-CS dated August 10, 2026

VAT and CIT Tax Filing for Foreign Contractors and Foreign Subcontractors

– Amendments to the tax filing regulations for cases where Corporate Income Tax is calculated as a percentage of taxable revenue. Under the revised regulations, taxpayers are only required to submit a final tax declaration upon completion of a foreign contractor contract if there is a change (increase or decrease) in the amount of tax previously declared and paid.

– This completely abolishes the mandatory finalization obligation in all cases as previously required, and eliminates a series of accompanying documents such as Copies of the business registration certificate or professional practice license, a schedule of tax payment vouchers, the contract liquidation report, and appendices detailing the allocation of VAT payable by the foreign contractor to the localities entitled to receive the tax revenue.

Conclusion

The Vietnam Tax Updates August 2026 bring important changes and clarifications across VAT, CIT, PIT, Foreign Contractor Tax, and tax administration, including updates that may affect tax declarations, reporting obligations, and compliance procedures.

Businesses should review these changes carefully to understand how they may affect their tax compliance and reporting obligations, and make timely adjustments where necessary.

If you need assistance in interpreting these regulations or assessing their impact on your business, contact Vina TPT. Our accounting and tax professionals can provide practical guidance and support your business in maintaining compliance with Vietnam’s latest tax requirements.

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Vietnam business accounting and tax landscape is undergoing sweeping structural reforms between 2025 and 2026. Foreign Direct Investment (FDI) enterprises must align with five critical regulatory shifts: Decree 70/2025/ND-CP (e-invoicing rules), Circular 99/2025/TT-BTC (new accounting framework replacing Circular 200), the 2024 Value Added Tax (VAT) Law (effective July 1, 2025), the 2025 Corporate Income Tax (CIT) Law No. 67/2025/QH15, and the 2025 Personal Income Tax (PIT) Law. 

This guide examines the business impacts of Vietnam’s 2025–2026 tax and accounting reforms on foreign-invested firms under Vietnamese Accounting Standards (VAS).  

• Key Overview: Recent Tax & Accounting Regulatory Reforms in Vietnam   
• 5 Major Ways Tax Reforms Directly Affect FDI Business Accounting Requirements   
• Comprehensive Business Accounting Services Tailored for FDI Enterprises 
• Frequently Asked Questions 

Key Overview: Recent Accounting and Tax Regulatory Reforms in Vietnam 

The General Department of Taxation (GDT) and the Ministry of Finance (MOF) in Vietnam are rapidly accelerating digital tax administration, big-data cross-reconciliation, and international compliance integration. The modern regulatory environment leaves zero margin for record-keeping delays or bookkeeping discrepancies. 

For foreign-invested enterprises operating across Ho Chi Minh City (TPHCM), Hanoi, and key industrial zones, tax and accounting compliance is no longer a passive administrative routine. Regulatory compliance directly influences cash flow timing, profit repatriation, transfer pricing audit exposure, and corporate reputation. Understanding the full scope of informational and navigational requirements across legislative mandates is essential for maintaining tax health and operational continuity in Vietnam. 

Timeline of Critical Accounting and Tax Changes (2025–2026) 

• 01/06/2025 — Decree 70/2025/ND-CP: Amends e-invoice regulations, enforcement mechanisms, data submission timing, and mandatory invoice contents. Introduces strict cut-offs for customs-linked transaction recording. 
• 01/07/2025 — Law on VAT 2024 (Law No. 48/2024/QH15): Officially comes into force, tightening input VAT deduction criteria, mandating non-cash payment verification, and restricting VAT refund eligibility for export-import and investment projects. 
• 01/10/2025 — Law on CIT 2025 (Law No. 67/2025/QH15): Takes effect for the 2025 tax year onwards, overhauling deductible expense conditions, related-party transaction controls, and foreign enterprise taxation rules. 
• 01/01/2026 — Circular 99/2025/TT-BTC: Enforces a modernized accounting system replacing the decades-old Circular 200/2014/TT-BTC framework, altering chart of accounts, foreign exchange treatments, and financial statement presentations. 
• 01/07/2026 — Law on Personal Income Tax 2025: Officially applies to individual income tax calculations, streamlining tax brackets and adjusting personal and dependent relief thresholds. 

5 Ways Accounting & Tax Reforms Impact FDI Business Accounting Requirements 

The convergence of these regulatory updates shifts tax compliance from periodic reporting to real-time verification. For FDI enterprises operating in Vietnam, structural mismatches between accounting entries, bank settlement records, customs declarations, and tax filings will automatically trigger tax authority risk alerts.

Decree 70/2025/ND-CP: Stricter E-Invoice and Transaction Recording Requirements

Decree 70/2025/ND-CP fundamentally alters the operational rules governing e-invoice generation, content accuracy, and timing. One of the most vital changes for export-oriented FDI companies is the strict requirement that e-invoices for exported goods must be issued no later than the next working day after customs clearance completion. 

Furthermore, Decree 70/2025 clarifies e-invoice requirements for cross-border digital services, software licenses, and complex intercompany transactions requiring multi-system data reconciliation. Accounting teams can no longer delay issuing invoices until month-end or quarter-end closing. Sales recognition, invoice logs, customs clearance timestamps, and tax declaration periods must be tightly aligned to avoid severe timing mismatch penalties. 

Expert Insight (Decree 70/2025): 

This is far more than an administrative “e-invoice compliance” task. For FDI enterprises engaged in import/export or cross-border intercompany service charges, an incorrect invoice issuance date directly disrupts revenue recognition timing under VAS/IFRS and invalidates 0% export VAT treatment during tax audits. 

Circular 99/2025/TT-BTC: New Accounting and Financial Reporting Requirements

Effective from January 1, 2026, Circular 99/2025/TT-BTC officially replaces the long-standing Circular 200 accounting regime. This represents the most comprehensive accounting overhaul in Vietnam over the past decade, introducing updated rules for accounting vouchers, the statutory chart of accounts, general ledger posting routines, foreign-exchange difference treatments, and year-end financial statement disclosures. 

Foreign-invested companies operating in Vietnam must systematically update their ERP systems (e.g., SAP, Oracle, Microsoft Dynamics) and local chart-of-accounts mapping. Simply rolling forward previous bookkeeping setups will result in non-compliant statutory financial statements, blocking profit remittance approvals from the State Bank of Vietnam (SBV) and tax authorities. 

Expert Insight (Circular 99/2025): 

Circular 99 is the cornerstone change for business accounting services. It directly dictates how transactions are recorded, books are closed, and statutory financial statements are compiled. FDI management must conduct an immediate ERP chart-of-accounts gap analysis prior to the 2026 fiscal year. 

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2025 Personal Income Tax Law: Major Changes to Payroll Tax Calculations

Beginning in the 2026 tax assessment year, Vietnam’s Personal Income Tax system transitions from seven progressive tax brackets down to five streamlined tax brackets. Simultaneously, the personal deduction allowance increases to VND 15.5 million per month (VND 186 million annually), and the dependent allowance increases to VND 6.2 million per month per dependent. 

FDI employers employing expatriates, key foreign executives, and high-earning local personnel must reconfigure their HR payroll engine, employee tax profiles, dependent documentation archives, and monthly tax withholding logic. Given that expatriate compensation often involves gross-up packages, housing allowances, and school fee benefits, accurate PIT withholding calculations are vital to control corporate payroll costs. 

Expert Insight (2025 PIT Law): 

With foreign experts and senior management earning high income packages, the shift in progressive tax brackets directly recalibrates net compensation, tax gross-up expenses, and monthly corporate cash flow projections. Payroll accounting must be seamlessly integrated with corporate tax compliance. 

2025 Corporate Income Tax Law: Greater Focus on Taxable Income and Deductible Expenses

The 2025 Corporate Income Tax Law (No. 67/2025/QH15), effective October 1, 2025 and applicable to the 2025 tax year, establishes stringent conditions for deductible expenses, taxable income determination, tax incentive eligibility criteria, and foreign contractor income taxation. Foreign-invested businesses face heightened documentation standards for intercompany management fees, technical consulting services, trademark royalties, and interest deductions under transfer pricing rules (Decree 132/2020/ND-CP framework). 

Accounting teams must establish robust internal controls to substantiate economic substance, benefit tests, and direct transfer pricing documentation for all related-party transactions prior to year-end tax finalization. 

Expert Insight (2025 CIT Law): 

For FDI companies, CIT compliance extends far beyond multiplying accounting profit by 20%. The core challenge lies in proving that overseas parent company charges—such as regional management fees, IT allocations, and royalty fees—are fully deductible under Vietnamese tax rules with adequate supporting dossier proof. 

2025 Value Added Tax Law: Stricter Input VAT Deduction and Payment Controls

Enforced from July 1, 2025, the 2024 VAT Law drastically tightens input VAT deduction rules. Most notably, the statutory threshold for mandatory non-cash payment documentation is reduced from VND 20 million down to VND 5 million (VAT-inclusive) for any purchase transaction. Furthermore, transaction aggregation rules prevent split-invoicing tactics designed to bypass bank transfer requirements. 

Under these stricter rules, tax officers will automatically disallow input VAT deductions and corresponding CIT expense deductions if payment records fail to match the official corporate bank account of the issuing vendor. 

Expert Insight (2025 VAT Law): 

In daily accounting practice, accountants cannot merely verify whether an e-invoice is authentic on the GDT portal. They must perform a 3-way match: valid e-invoice + compliant non-cash payment proof + transaction contract/delivery note. Any flaw in payment evidence will trigger input VAT clawbacks and tax interest penalties. 

Vina TPT: Comprehensive Business Accounting Services Tailored for FDI Enterprises 

Vina TPT is a premier business consultancy and accounting firm operating in Ho Chi Minh City (TPHCM) and key economic hubs across Vietnam. We specialize in empowering Foreign Direct Investment (FDI) companies, foreign contractors, and multinational branches to navigate Vietnam’s complex regulatory environment with absolute financial clarity and 100% legal compliance.

Our tailored business accounting services bridge the critical gap between international financial management standards (IFRS/US GAAP) and mandatory Vietnamese statutory requirements (VAS, Circular 99/2025, GDT tax laws). 

Why Leading FDI Enterprises Choose Vina TPT: 

• Full-Scope VAS & IFRS-Compliant Bookkeeping: Accurate monthly bookkeeping and statutory financial reporting under Vietnamese Accounting Standards (VAS) and IFRS upon request, delivered with comprehensive monthly management reports and dedicated bilingual accounting professionals. 

• Periodic VAT Compliance & Filing: Complete preparation and timely filing of monthly or quarterly Value Added Tax (VAT) returns. 

• Payroll Processing & Social Insurance Management: End-to-end payroll administration, precise salary calculations, gross-up tax modeling, and seamless handling of mandatory Social Insurance (SI/HI/UI) compliance and employee profiles. 

• PIT Calculation & Periodic Tax Filing: Compliant Personal Income Tax (PIT) computation for both local and expatriate employees, dependent registrations, and preparation of periodic PIT declarations and annual tax finalizations. 

• FDI Investment & Statutory Reporting: Timely preparation and submission of mandatory periodic investment activity reports to foreign investment authorities (MPI/DOIT), ensuring strict regulatory compliance for FDI projects. 

• Back-Office & Document Administration: Comprehensive operational support including e-invoice issuance, systematic archiving of physical and digital accounting vouchers, and management of statutory business records. 
• Proactive Tax Advisory & Regulatory Updates: Continuous monitoring and real-time updates on new tax and accounting regulations, backed by proactive advisory support to resolve operational queries and shield your business from compliance risks. 

Frequently Asked Questions (FAQ)

Need Professional Accounting & Tax Support for Your FDI Business? 

Contact Vina TPT today for a free consultation and customized solution tailored to your compliance needs! 

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