Transfer Pricing of Intercompany Financing in Vietnam

Intercompany financing is one of the first topics Vietnamese tax inspectors test in a foreign-invested company. A parent lends to its Vietnamese subsidiary at 9% when a bank would charge 7%, or a Vietnamese lender funds an offshore affiliate for free. Either way, the interest on related-party loans must satisfy the arm’s-length principle under Decree 132/2020/ND-CP and Circular 45/2021/TT-BTC.

This article explains how to price, document and defend intercompany financing, and how the pricing interacts with State Bank of Vietnam (SBV) registration and foreign contractor tax. Statements of law reflect our reading as of October 2026; points marked “verify” should be confirmed against the current text before you act.

Why Intercompany Financing Attracts Scrutiny

Intercompany financing combines three features that auditors favour: large amounts, a deductible expense, and a cross-border payment. Interest paid abroad reduces Vietnamese taxable profit, while the lender is usually taxed at a modest rate in Vietnam, so an inflated rate moves profit out of the country. The reverse also matters: an interest-free loan from a Vietnamese company to an offshore affiliate understates Vietnamese income.

Authorities also watch for loans that behave like equity: no fixed repayment, repeated rollovers, or a borrower that is structurally loss-making. A loan can be within the 30% EBITDA interest cap in Decree 132 and still be adjusted because its rate is not arm’s length. The cap is a separate test, covered in our thin capitalisation article; this article concerns price only.

Legal Framework: Decree 132/2020/ND-CP and Circular 45/2021/TT-BTC

Decree 132/2020/ND-CP, issued in late 2020, governs tax administration for enterprises with related-party transactions and applies from the 2020 tax period. Circular 45/2021/TT-BTC, issued in mid-2021, supplies the detailed guidance on comparability, methods, documentation and advance pricing agreements. Both sit beneath the Law on Tax Administration and the corporate income tax (CIT) law; because both statutes have been replaced or amended recently, verify the current versions and any amending decree before relying on article numbers.

Together they are the core rules for intercompany financing in Vietnam.

Which Related-Party Loans Are Caught

Under Decree 132, parties are related where one holds at least 25% of the other’s capital directly or indirectly, where a third party holds at least 25% of both, or where one controls the other through management, loans or guarantees. A third-party bank loan can itself become a related-party transaction where an affiliate guarantees or secures it and it forms a large share of the borrower’s equity and medium and long-term debt (verify the thresholds). In practice intercompany financing covers:

• shareholder and sister-company loans, in either direction;
• cash-pooling and treasury-centre on-lending;
• bonds or notes subscribed by affiliates;
• trade receivables left outstanding well beyond ordinary terms;
• guarantees, comfort letters and security granted for an affiliate.

The Arm’s-Length Principle in Practice

Decree 132 requires related parties to price transactions as independent parties would in comparable circumstances, and it follows substance over form. The recognised methods are comparable uncontrolled price, resale price, cost plus, comparable profit and profit split. For intercompany financing, the comparable uncontrolled price method dominates, with a cost-plus build-up for treasury centres.

The OECD Transfer Pricing Guidelines, in particular the chapter on financial transactions, are widely used by practitioners and Vietnamese auditors as persuasive guidance; see the OECD transfer pricing resources. Where the taxpayer’s result falls outside the interquartile range of comparables, the authority may adjust to the median.

Documentation Duties: Local File, Master File and CbCR

Decree 132 and Circular 45 require three layers of documentation for intercompany financing and other transactions, plus a related-party disclosure form filed with the annual CIT finalisation return. The table summarises the structure; thresholds and deadlines should be verified each year.

Document	Who prepares it	Content relevant to loans	Timing (verify)
Local File	Vietnamese taxpayer above the thresholds	Loan terms, functional analysis, credit analysis, benchmarking study	Prepared by the CIT filing deadline; produced within 15 working days of request, extendable
Master File	Vietnamese taxpayer in a group, above the thresholds	Group financing policy, treasury functions, main funding arrangements	Same as Local File
CbCR	Vietnamese ultimate parent of a large group (consolidated revenue of VND 18,000 billion or more); others on request	Group-wide revenue, profit, tax and employees by jurisdiction	Generally within 12 months after year end

Documenting Intercompany Financing in the Local File

A defensible Local File treats intercompany financing as a transaction with its own file section. It should state the lender, borrower, currency, principal, tenor, repayment profile, security, covenants and interest basis; explain why the borrower needs the funds and why the group chose debt rather than equity; analyse the borrower’s creditworthiness; and attach the benchmarking study with its search strategy, rejected comparables and conclusion. The loan agreement, drawdown evidence and interest payment records must match the file, because inspectors reconcile them line by line.

Thresholds and Exemptions

A taxpayer is generally exempt from the Local File, Master File and CbCR where its revenue is below VND 50 billion and its total related-party transactions are below VND 30 billion, with further relief for simple-function businesses and for those covered by an advance pricing agreement (verify the current figures). Exemption removes the filing duty only. The authority can still audit the pricing of intercompany financing, so a short written rationale is prudent even below the thresholds.

Benchmarking Studies for Intercompany Financing

A benchmarking study is the evidence that the rate on intercompany financing is arm’s-length interest. Weak studies usually misdescribe the transaction or use comparables that do not match currency or risk.

Step One: Delineate the Actual Transaction

Before searching for comparables, confirm what the intercompany financing really is. The OECD approach asks whether an independent lender would have advanced that amount on those terms, which tests whether the instrument is debt at all. A loan with no repayment horizon and no interest actually paid may be treated as equity, and the interest disallowed entirely.

Step Two: Build the Comparable Set

Comparable data comes from two broad sources: internal comparables (the borrower’s own bank loans on similar terms) and external ones (commercial databases of loans and bonds). Adjust for currency, tenor, seniority, security and credit quality. A US dollar loan should be benchmarked against a dollar reference rate, today the secured overnight financing rate (SOFR) plus a credit spread, not against Vietnamese dong deposit or lending rates.

Inspectors may still ask for Vietnamese bank rates, so prepare a reconciliation. Circular 45 sets out comparability factors and a preference for reliable local or regional data (verify the current wording). The result is a range; compliance is judged against the interquartile range.

The Credit Rating Approach to Pricing Related-Party Loans

The credit rating approach is the most common pricing technique for intercompany financing because it converts a qualitative question (how risky is this borrower?) into a number that can be matched to market yields. It runs in three moves.

Standalone Rating and Implicit Support

First, estimate the borrower’s standalone rating using a financial scorecard modelled on rating-agency criteria: leverage, coverage, size, profitability, sector and country risk. No official agency rating is needed. Second, consider implicit group support. A Vietnamese subsidiary that is strategically core to the group may be rated higher than its balance sheet alone suggests, but the OECD guidance cautions that mere group membership gives little uplift without evidence of real support.

Young or loss-making Vietnamese subsidiaries often rate low, which pushes the arm’s-length rate up and enlarges deductions, so inspectors scrutinise the rating inputs.

From Rating to Rate

Third, map the rating to the yield on comparable bonds or loans of the same rating, tenor and currency, and add adjustments for security, subordination and any fees. Record the analysis date and refresh it when conditions move. Keep the models supporting your intercompany financing, because the authority can ask for them within the 15-working-day response window.

Guarantee Fees and Back-to-Back Structures

Guarantees often accompany intercompany financing. When a parent guarantees a bank loan to its Vietnamese subsidiary, the borrower obtains a lower rate and the parent bears risk. Whether a fee is chargeable depends on whether the guarantee provides a genuine benefit beyond mere group affiliation.

How Guarantee Fees Are Benchmarked

Accepted methods include the yield approach (the interest saving between the guaranteed and unguaranteed rate, shared between guarantor and borrower), the expected loss approach, and the cost approach based on the guarantor’s capital cost. A fee set at the whole interest saving is rarely accepted; the borrower should retain part of the benefit. Document the borrower’s standalone rating, the guarantor’s rating and the evidence that the guarantee changed the pricing.

Back-to-Back Loans and Cash Pooling

Where a treasury centre borrows externally and on-lends to Vietnam, the margin charged must reflect functions performed and risks assumed. A pure conduit with no decision-making capacity earns a small, risk-free-type return.

SBV Foreign-Loan Registration and Foreign Contractor Tax

Pricing is only one of three regimes that apply to intercompany financing entering Vietnam. The others are foreign-exchange control by the SBV and foreign contractor tax (FCT) withheld on interest. The terms must be consistent across all three.

Regime	Key rule (verify)	Link to pricing
SBV foreign borrowing	Circular 03/2016/TT-NHNN: medium and long-term loans (over one year) are registered with the SBV before drawdown; short-term loans that are rolled into longer terms must be registered; periodic reporting applies	Registered amount, rate, fees and tenor should match the loan agreement and the Local File
FCT on interest	Circular 103/2014/TT-BTC: CIT at 5% on interest paid to a foreign lender; VAT generally not applicable to loan interest	FCT is paid on the interest actually paid, even if part is later disallowed as a deduction
Transfer pricing	Decree 132/2020/ND-CP and Circular 45/2021/TT-BTC	Rate must be arm’s length; documentation due by the CIT deadline

SBV Registration

For a self-borrowing, self-repaying foreign loan, the enterprise registers the loan with the SBV provincial branch where it is based, and banks usually require the registration confirmation before they remit principal or interest. For foreign-invested companies, medium and long-term borrowing is also limited by the gap between total investment capital and charter capital. The SBV does not test the interest rate for arm’s-length quality, so registration offers no transfer pricing comfort.

Any amendment to the rate or tenor must be reflected in an amended registration, or the SBV file and the tax file will contradict each other. The SBV framework has been under revision, so verify the current circular.

Foreign Contractor Tax on Interest

Interest paid to a foreign lender is subject to CIT at 5% under the FCT rules, withheld by the Vietnamese borrower. A double tax treaty seldom improves on 5%, except for exemptions for certain governmental lenders, and treaty claims require a notification dossier. If the contract states the interest net of tax, the borrower bears the gross-up, which increases the cost and the deduction claimed.

A transfer pricing adjustment disallowing part of the interest does not refund the FCT already paid; recovery, if any, depends on the lender’s home-country credit or a mutual agreement procedure. The Law on CIT was replaced in 2025, so verify whether the FCT guidance has been re-issued.

Audit Risk, Adjustments and Advance Pricing Agreements

What Auditors Look For

Typical triggers in audits of intercompany financing are a rate well above the borrower’s bank rate, unsecured loans to a borrower in persistent losses, loans with no written agreement, interest accrued for years but never paid, capitalised interest, repeated rollovers, lenders in low-tax jurisdictions, currency mismatches, and failure to produce the Local File within the response window. The authority may also reject the taxpayer’s comparables and apply its own data, so the study must be robust enough to rebut it.

Adjustments, Penalties and Late Interest

The usual adjustment to intercompany financing disallows the excess interest as a deduction and adds it back to taxable income. Underpaid tax attracts an administrative penalty (generally 20% for under-declaration under Decree 125/2020/ND-CP) and late-payment interest (0.03% per day under the Law on Tax Administration). A new Law on Tax Administration has been enacted; verify the effective date, the rates and the transitional rules.

Where the lender’s country has a treaty with Vietnam, a mutual agreement procedure may relieve double taxation, although it takes time. Enterprises can follow tax policy updates through the General Department of Taxation.

Advance Pricing Agreement Options

An advance pricing agreement can fix the method and range for intercompany financing for a defined period, commonly up to five years, in exchange for full disclosure and annual compliance reporting. Vietnamese rules provide for unilateral, bilateral and multilateral agreements (verify procedure and timelines under Circular 45).

• Unilateral: faster and cheaper, binding only in Vietnam; the lender’s tax authority may still disagree.
• Bilateral or multilateral: removes double taxation risk with treaty partners but is slower and requires both authorities to agree.
• No agreement: rely on annual documentation, which is cheaper but leaves the audit exposure open for the statute of limitations.

An advance pricing agreement is worth considering for a large, long-term intercompany financing programme or a treasury centre where an adjustment would be costly. For a single small loan it rarely justifies the cost.

Practical Roadmap for Intercompany Financing

1. Inventory every intercompany financing arrangement: related-party loans, guarantees and cash-pool balances, including third-party debt guaranteed by an affiliate.
2. Confirm each loan has a written agreement, SBV registration where required, and consistent terms.
3. Set the rate for intercompany financing with a documented credit rating approach and a currency-matched benchmark.
4. Refresh the benchmarking study annually and file the Local File before the CIT deadline.
5. Reconcile FCT withholding, interest accruals and payments to the file.
6. Decide whether an advance pricing agreement is warranted for recurring, high-value arrangements.

Frequently Asked Questions

Does all intercompany financing need a benchmarking study?

Not by statute for every loan, but above the documentation thresholds the Local File must support the rate with comparability analysis. Below the thresholds, a short written rationale is still advisable because the authority can audit any related-party loan.

Is interest-free intercompany financing acceptable?

It is risky where the lender is Vietnamese, because the authority may impute arm’s-length interest as income. For a Vietnamese borrower, an interest-free loan usually claims no deduction, but check the lender’s home-country rules and SBV registration terms.

Which benchmark suits US dollar intercompany financing?

Use a dollar reference rate such as SOFR plus a credit spread matched to the borrower’s rating and tenor. Be ready to explain any difference from Vietnamese dong bank rates that inspectors may raise.

Does SBV registration prove the rate is arm’s length?

No. Registration is a foreign-exchange control step and does not test pricing. The registered terms should match the loan agreement, but the arm’s-length rate still needs its own support.

Is an advance pricing agreement worth the cost?

For large, long-term or recurring financing programmes, often yes, because it replaces audit uncertainty with agreed terms for up to five years. For one small loan, annual documentation is normally more economical.

Strong intercompany financing is simple to describe: a written agreement, a rate supported by evidence, registrations that match, and a Local File that tells the same story. Start by listing every related-party loan and guarantee in your group and comparing each rate with a credit-rating-based benchmark before the next CIT finalisation.

Disclaimer: This article provides general information only and is not legal, tax or financial advice. Laws and administrative practice change; please obtain advice on your specific circumstances before acting.