This guide explains how businesses in Vietnam can include Facebook and Google advertising costs as deductible expenses to optimize their corporate tax position. Recording these costs correctly is essential for reducing taxable income, and this article walks you through the accounting treatment and the supporting documents you need to prepare.
- How to Include Facebook and Google Advertising Expenses as Deductible Business Costs in Vietnam
- Conditions for Advertising Expenses to Be Deductible
- Additional Considerations for Validating Advertising Expenses
- Steps to Account for Facebook and Google Advertising Expenses
- Common Mistakes Leading to Disallowed Expenses
- Support Services for Managing Advertising Expenses
How to Include Facebook and Google Advertising Expenses as Deductible Business Costs in Vietnam
Advertising expenses on platforms such as Facebook and Google can qualify as deductible business costs under Vietnam’s Corporate Income Tax (CIT) regulations. When recorded properly, these expenses reduce a company’s taxable income. However, to qualify, businesses must meet specific documentation and compliance requirements.
Conditions for Advertising Expenses to Be Deductible
1. Valid Invoices and Documentation
Businesses must obtain valid invoices or payment documents from Facebook or Google. When the services are provided by foreign entities, invoices may need to be translated and certified before they can be used for tax purposes.
2. Appropriate Payment Methods
Payments must be made through the company’s official bank account. Cash payments and transactions made through personal accounts are not accepted as valid deductible expenses.
3. Direct Relation to Business Activities
The advertising expenses must be directly related to the company’s business operations. Costs that are not clearly linked to the company’s commercial activities may be disallowed during a tax audit.
4. Clear Service Contracts
A written contract should be in place that clearly outlines the advertising services, including the duration, scope of content, cost, payment terms, and the obligations of each party.
5. Compliance with Legal Limits
Under the Law on Corporate Income Tax No. 14/2008/QH12, advertising expenses are no longer subject to a fixed cap, particularly for companies enjoying tax incentives. Even so, the amounts claimed should remain reasonable and be fully supported by documentation.

Additional Considerations for Validating Advertising Expenses
1. Consistency in Company Information
The company name and tax code shown on invoices must match the company’s registered information. Using personal accounts to pay for advertising can lead to the expense being disqualified.
2. Timing of Expense Recognition
Expenses should be recorded in the accounting period in which they actually occur. Recognizing costs in the wrong period can render them non-deductible.
3. Actual Business Activities
Advertising should promote products or services that the company is actively offering. Running ads for inactive product lines or non-existent services can raise concerns during a tax review.
4. Legitimate Service Providers
Working with intermediaries that lack legal status or proper documentation can jeopardize the deductibility of your advertising expenses.
Steps to Account for Facebook and Google Advertising Expenses
1. Prepare Contracts and Supporting Documents
Sign clear contracts with Facebook, Google, or their authorized partners, and keep records of all related communications, advertising content, and detailed cost breakdowns.
2. Obtain Proper Invoices
If you work with a local agency, make sure they issue valid VAT invoices. For payments made directly to Facebook or Google, retain the electronic invoices and have them translated into Vietnamese when required.
3. Record in Appropriate Accounting Accounts
Post advertising expenses to account 641 (selling expenses) or another suitable account in line with your chart of accounts.
4. Maintain Comprehensive Records for Tax Audits
Keep all supporting documents, including invoices, bank statements, contracts, acceptance reports, and confirmation emails, for at least 10 years.
5. Monitor Expenses Using Accounting Software
Record and reconcile advertising expenses in your accounting software on a regular basis to ensure accuracy and full compliance with Vietnamese tax regulations.
Common Mistakes Leading to Disallowed Expenses
1. Using Cash or Personal Accounts for Payments
Such payments are not recognized for corporate income tax deduction purposes.
2. Lack of Proper Documentation
Missing invoices, bank statements, or contracts can result in the expense being disqualified during a tax audit.
3. Unrelated Advertising Content
Advertising content that is not directly linked to the company’s actual business operations may be considered unnecessary and rejected.
4. Invalid Contracts
Contracts that are missing signatures, lack clear terms, or do not reflect a genuine mutual agreement can create issues during a tax review.
5. Exceeding Reasonable Expense Limits
Even without a formal cap, unusually high advertising expenses that lack clear business justification may attract closer scrutiny from tax authorities.

Support Services for Managing Advertising Expenses
1. Accounting Services for Advertising Expenses
Professional accounting firms in Vietnam can help verify the legitimacy of your advertising expenses, ensure that supporting documents are complete, and prepare transparent financial reports for tax purposes.
2. Tax Advisory Services
Experienced tax advisors can review your advertising expenses to determine whether they qualify for deduction and help you prepare the right documentation to mitigate legal and tax risks.
Claiming Facebook and Google advertising expenses as deductible business costs in Vietnam requires strict adherence to local tax regulations. Proper documentation, the right payment methods, and a clear link to your business activities are essential. Engaging professional accounting and tax advisory services can make compliance easier and help you maximize your tax benefits.
For any inquiries, please contact Wacontre Accounting Services via Hotline (028) 3820 1213 or email [email protected] for prompt assistance. With a team of experienced professionals, Wacontre is committed to delivering dedicated and efficient service. (For Japanese-speaking clients, please contact Hotline (050) 5534 5505.)
