Contractor tax is one of the most complex and risky taxes when Vietnamese businesses trade with foreign partners. Even a small mistake in identifying the taxable entity, the calculation method, or the applicable tax rate can lead to back taxes, late payment penalties, and seriously impact project costs. Based on... Circular 103/2014/TT-BTC In addition to relevant legal regulations, this article provides comprehensive guidance from the concept, taxable subjects, tax rates to the calculation of contractor tax according to each method, helping businesses understand correctly, apply the standard, and proactively control tax risks in cross-border transactions.
What is contractor tax?
Foreign Contractor Tax (FCT) is a comprehensive tax applied to foreign organizations doing business (foreign contractors) or foreign individuals earning income in Vietnam, based on signed contracts and agreements.
The purpose of contractor tax is to ensure tax obligations for economic activities carried out in Vietnam, even if the foreign contractor does not establish a legal entity or permanent establishment here. Specifically:
- Foreign contractor: An organization established under foreign law or an individual with foreign nationality participating in the bidding process. Based on Clause 29, Article 4 of the 2023 Bidding Law.
- Foreign subcontractor: A contractor who participates in the execution of a part of a project package under a contract signed with the main contractor (either a Vietnamese or foreign contractor).
From the above concept, it can be seen that contractor tax is not a single tax but a collection of different taxes, applied depending on the legal status and business form of the foreign contractor in Vietnam. Therefore, to correctly determine the tax obligations to be fulfilled, businesses need to clarify the types of contractor taxes payable according to current regulations.
Types of taxes contractors must pay
According to Article 5 of Circular 103/2014/TT-BTC, the types of taxes that contractors must pay include:
| Object | Type of tax payable | Legal basis |
| Foreign contractors and foreign subcontractors are business organizations. | Value Added Tax (VAT) and Corporate Income Tax (CIT). | Guidance as per Circular 103/2014/TT-BTC. |
| Foreign contractors and foreign subcontractors are foreign individuals engaged in business activities. | Value Added Tax (VAT) and Personal Income Tax (PIT). | Value Added Tax (VAT) is determined according to Circular 103/2014/TT-BTC, and Personal Income Tax (PIT) is determined according to the law on PIT. |
For other taxes, fees, and charges, foreign contractors and foreign subcontractors shall comply with the current laws and regulations of Vietnam.
Contractor tax subjects
To accurately determine which transactions are subject to contractor tax, businesses need to base their assessment on the nature of the income-generating activities in Vietnam, not just the contract form or the location of signing. The table below summarizes common activity groups subject to contractor tax according to Circular 103/2014/TT-BTC, helping businesses easily compare and apply the regulations in practice.
| Activity Group | Details of activities subject to contractor tax. |
| Providing services | Providing services within the territory of Vietnam or services consumed in Vietnam, including internet services, advertising, marketing, management, etc. (excluding services exempt from tax according to the law). |
| Construction and installation | Carrying out construction and installation activities in Vietnam, including technical supervision, design, and consulting related to projects. |
| Providing goods and services in Vietnam. | Providing goods through on-the-spot import and export and generating income in Vietnam.
Providing goods under international delivery terms (DDP, DAF, etc.) when distribution and supply take place in Vietnam or include accompanying services. |
| Negotiation and contract signing activities | Negotiating and signing business contracts in the name of a foreign organization or individual through an organization or individual in Vietnam. |
| Rental, insurance, and financing | Leasing of machinery, equipment, and means of transport (aircraft, ships); insurance and reinsurance activities. |
| Financial income and ownership | Income is generated from interest on loans, royalties, securities transfers, and certificates of deposit. |
The scope of contractor tax application is quite broad, covering many types of business activities and cross-border transactions. Therefore, correctly identifying the nature of the activity, the conditions of contract performance, and the method of income generation in Vietnam is a key factor in accurately determining the tax liability, avoiding the risk of retroactive collection and penalties. This is also an important basis for businesses to further consider the appropriate tax rate and method of calculating contractor tax in the following section.
Contractor tax rate
To determine the amount of contractor tax payable using the Direct Method (the most common tax calculation method), a percentage (%) of the taxable revenue for each type of tax must be applied.
Contractor tax rate for Corporate Income Tax
Case 1: Tax payment is based on the declaration method, in accordance with the provisions of the Corporate Income Tax Law and current implementing regulations of Vietnam (the current general tax rate is 20%, applied to profits).
Case 2: Tax payment by direct method (Calculated as a percentage of revenue) The rate (%) of corporate income tax calculated on taxable revenue is stipulated in Article 13 of Circular 103/2014/TT-BTC as follows:
| Business lines | The (%) corporate income tax rate is calculated on taxable revenue. |
| Services (excluding items 2, 3, 4, 5, 7, and 8) | 5% |
| Providing equipment, materials, and machinery related to services in Vietnam. | 1% |
| Leasing of machinery, equipment, and transport vehicles; leasing of aircraft, aircraft engines, aircraft parts, and ships (excluding financial leasing). | 5% |
| Construction and installation (with or without contracting for materials, machinery, and equipment) | 2% |
| Transportation (sea and air) | 2% |
| Transfer of securities, certificates of deposit, reinsurance abroad, reinsurance cession commissions. | 0.1% |
| Interest from loans | 5% |
| Income from royalties and technology transfer. | 10% |
Important Note:
- Multi-activity contracts: If a contract includes multiple activities (e.g., equipment supply and installation) but the value of each activity cannot be separated, the highest Corporate Income Tax rate will be applied to the entire contract value.
- Construction or Installation Contract: If the value of goods or equipment supplied cannot be separated from the value of construction or installation, apply the 2% rate to the entire contract value.
Contractor tax rate for VAT
Case 1: Paying taxes using the deduction method must comply with the regulations of the Value Added Tax Law and its implementing guidelines.
Case 2: Direct tax payment method (Rate based on revenue): The rate (%) for calculating VAT on revenue is stipulated in Article 12, Circular 103/2014/TT-BTC as follows:
| Business sector | The ratio (%) for calculating VAT. |
| Services, equipment rental, insurance (excluding raw materials). | 5% |
| Production, transportation, and services related to goods; construction and installation (including material procurement). | 3% |
| Other business activities | 2% |
Therefore, businesses need to accurately classify the activities in contracts with foreign contractors to apply the correct VAT rate, avoiding incorrect declarations that could lead to tax arrears and penalties.
Detailed guide on how to calculate contractor tax.
Circular 103/2014/TT-BTC stipulates three methods for paying main contractor tax: the declaration method, the direct method, and the mixed method.
Calculate contractor tax using the declaration method.
The declaration method applies to foreign contractors or subcontractors who simultaneously meet the following conditions:
- Having a permanent establishment in Vietnam or being a resident of Vietnam.
- The business period in Vietnam under the contract is 183 days or more from the effective date of the contract.
- The company applies Vietnamese accounting standards and has registered for tax, receiving a tax identification number.
Calculation formula
Foreign contractors applying this method will fulfill tax obligations the same as a Vietnamese enterprise, including:
- Value Added Tax (VAT) is declared using the deduction method.
|
VAT payable = Output VAT – Input VAT eligible for deduction |
- Corporate income tax is declared based on reasonable revenue and expenses (applying the standard corporate income tax rate).
|
Corporate income tax payable = Taxable income x Corporate income tax rate |
In reality, not all foreign contractors fully meet the conditions regarding permanent establishment, operating time, and accounting regime to apply the declaration method. For cases that do not satisfy these conditions, Vietnamese tax law stipulates that the contractor's tax liability is determined using the direct method, in which the Vietnamese party is responsible for withholding and remitting the tax on behalf of the foreign contractor.
Calculate contractor tax using the direct method.
The direct method applies to foreign contractors/subcontractors who do not meet one of the conditions for applying the declaration method as stipulated in Article 11 of Circular 103/2014/TT-BTC.
In this method, the Vietnamese party is responsible for deducting and remitting taxes on behalf of the foreign contractor.
Tax calculation method
The method for calculating VAT for contractors is determined by the following formula:
|
VAT payable = Taxable VAT revenue x VAT rate (1% VAT rate) on revenue |
In this context, VAT-taxable revenue is the total revenue before deducting expenses, including any amounts paid by the Vietnamese party (if any).
How to calculate contractor tax based on NET and Gross prices.
The method of calculating contractor tax based on NET and Gross prices is essentially the application of the Direct Method (Method 2), depending on the agreement on the contract value. It is specifically determined as follows:
- Contractor tax is calculated based on the Gross price (Price including tax): The contract value includes VAT and Corporate Income Tax (or Personal Income Tax). The Vietnamese party only deducts and pays the tax portion according to the standard calculation formula.
- Contractor tax calculation based on Net price (Price excluding tax): The contract value is the actual payment to the foreign contractor, excluding FCT tax. The Vietnamese party is responsible for paying all applicable taxes, resulting in a "gross-up" (converting the Net price to a price including tax) for tax calculation.
In the case of a Gross Price Contract
In the case of contracts based on gross price, the VAT and corporate income tax rates are determined as follows:
|
VAT payable = contract value x VAT rate (%) |
Corporate income tax payable:
|
Corporate income tax payable = (Contract value – VAT already calculated) x Corporate income tax rate (%) |
For example: The construction service contract, which includes the supply of materials (VAT ratio 31%, corporate income tax 21%), is valued at 5 billion VND.
Then:
|
VAT = 5,000,000,000 x 3% = 150,000,000 VND |
The corporate income tax payable is as follows:
|
Corporate Income Tax = (5,000,000,000 – 150,000,000) x 2% = 97,000,000 VND |
Total contractor tax payable:
|
Total FCT = 150,000,000 + 97,000,000 = 247,000,000 VND |
In practice, not all contracts with foreign contractors are agreed upon in the form of a price including tax (Gross). Many contracts stipulate that the payment price is excluding tax, in which case the Vietnamese party is responsible for paying all resulting tax obligations. In this case, determining the Net price and performing a Gross-up calculation to determine contractor tax is a mandatory requirement and must be done correctly according to regulations to avoid errors in tax declaration and payment.
In the case of contracts with net price (excluding tax)
When the Vietnamese party commits to paying the tax on behalf of the buyer (Net price), the taxable revenue (Gross-up revenue) must be determined using the following formula:
Determine the taxable revenue for corporate income tax (Gross-up):
|
Taxable revenue for corporate income tax = NET contract price / (1 – Corporate income tax rate calculated on revenue) |
Calculate the corporate income tax payable:
|
VAT payable = Taxable revenue x VAT rate |
For example: The construction service contract, which includes the supply of materials (VAT ratio 31%, corporate income tax 21%), is valued at 5 billion VND.
Calculate Corporate Income Tax:
|
Corporate income tax revenue = 5,000,000,000 / (1 – 2%) = 5,102,040,816 VND |
Corporate income tax payable:
|
Corporate income tax = 5,102,040,816 x 2% = 102,040,816 VND |
Calculate VAT:
|
VAT revenue = (5,000,000,000 + 102,040,816) / (1 – 3%) = 5,260,866,614 VND |
Value Added Tax payable:
|
VAT = 5,260,866,614 x 3% = 157,825,998 VND |
Total contractor tax payable:
|
Total FCT = 102,040,816 + 157,825,998 = 259,866,814 VND |
Deadline for contractor tax payment
The deadline for paying contractor tax is determined as the last day of the tax return filing deadline. If the last day falls on a holiday, the deadline will be extended to the next working day. Specifically:
- Payments shall be made on a case-by-case basis: No later than the 10th (tenth) day from the date the Vietnamese Party makes the payment to the Foreign Contractor.
- Monthly: No later than the 20th (twenty) day of the month following the month in which the tax liability arises.
In cases where complex situations arise or require in-depth review of contractor tax obligations, early consultation with MAN – Master Accountant Network, a specialized accounting and tax consulting firm, will help businesses mitigate the risk of tax arrears, optimize costs, and ensure compliance with current legal regulations.
Conclude
Contractor tax is one of the complex and broad tax obligations for cross-border transactions in Vietnam. Correctly identifying the taxable entity, the type of tax payable, the tax rate, and the tax calculation method plays a crucial role in ensuring legal compliance and cost control for businesses. In the context of increasing tax audits and inspections of transactions with foreign contractors, businesses need to proactively review contracts, the nature of operations, and payment methods to correctly apply contractor tax regulations, thereby minimizing the risk of tax arrears and penalties, and ensuring transparency and efficiency in business operations.
Contact information MAN – Master Accountant Network
- Address: No. 19A, Street 43, Tan Thuan Ward, Ho Chi Minh City
- Mobile/Zalo: 0903 963 163 – 0903 428 622
- Email: man@man.net.vn
Content production by: Mr. Le Hoang Tuyen – Founder & CEO MAN – Master Accountant Network, Vietnamese CPA Auditor with over 30 years of experience in Accounting, Auditing and Financial Consulting.
Editorial Board: MAN – Master Accountant Network
