Credit card limit of 30 million VND leads to a debt dispute exceeding 60 million VND

A recent legal battle between a credit cardholder and a commercial bank in Ho Chi Minh City has highlighted the complexities and potential financial pitfalls inherent in consumer credit agreements. The case, involving an initial credit limit of 30 million VND, ballooned into a contentious legal dispute over interest and penalty calculations, ultimately reaching the appellate court to determine the legitimacy of how banks aggregate debt when a customer defaults.

The Origin of the Dispute

On March 18, 2021, a customer identified as Mr. Nguyen Huynh P. entered into a credit card agreement with a commercial bank in Ho Chi Minh City. The contract, designed for personal consumption, granted Mr. P. a revolving credit limit of 30 million VND. At the time of signing, the agreed-upon interest rate for usage within the credit limit was set at 2.48% per month.

For the initial period following the activation of the card, the account functioned according to standard banking protocols. Mr. P. engaged in various transactions, including cash withdrawals and retail purchases, totaling approximately 121.1 million VND over the active duration of the account. During this period, Mr. P. made repayments to the bank amounting to roughly 97 million VND.

The Mechanics of Credit Card Debt

The conflict stems from the standard, yet often misunderstood, "waterfall" repayment structure dictated by credit card agreements. According to the contract terms, payments made by a cardholder are applied in a specific hierarchical order: first to fees and interest from previous billing cycles, then to cash withdrawal transactions, and finally to retail purchases or online payments from previous cycles. Only after these obligations are met are payments applied toward new fees, interest, or transactions occurring within the current billing cycle.

When Mr. P. failed to meet his repayment obligations, the bank formally terminated his right to use the card. On September 11, 2023, the outstanding balance was reclassified as "overdue debt." At that juncture, the bank assessed the principal and interest, applying an overdue interest rate set at 150% of the original contractual rate.

Chronology of the Legal Proceedings

The dispute escalated from a private financial disagreement into a formal lawsuit filed by the bank, seeking a judicial order for the immediate repayment of the remaining debt.

• September 2023: The bank officially classified the debt as overdue, citing a balance of approximately 30.2 million VND in principal and accumulated interest.
• September 2024: In its initial filings, the bank requested the court to order the repayment of 45.75 million VND, which included the principal and interest calculated up to September 16, 2024.
• August 2025: The bank amended its claim, requesting a total of 60.2 million VND, consisting of the original 30.2 million VND principal plus nearly 30 million VND in overdue interest charges.
• The Court’s Ruling: The People’s Court of District 1, Ho Chi Minh City, adjudicated the case, ultimately rejecting a portion of the bank’s demands. The court ruled that Mr. P. was liable for a total of 56.4 million VND, comprising 29.3 million VND in principal, 727,205 VND in standard interest, 109,831 VND in late payment fees, approximately 26 million VND in interest on the overdue principal, and 164,551 VND in late interest.
• The Appeal: Dissatisfied with the trial court’s decision, the bank filed an appeal on September 25, 2025, maintaining its original claim for the full amount.

Judicial Analysis: Interest and Capitalization

The appellate court’s scrutiny focused on the bank’s method of calculating interest. The court highlighted that the bank had effectively "capitalized" the interest—taking the unpaid principal, the interest within the limit, and the late fees, and merging them into a new principal sum of 30.2 million VND upon which it then calculated further overdue interest.

The appellate court determined that this method of "compounding" interest was inconsistent with Circular 39/2016/TT-NHNN issued by the State Bank of Vietnam and the guidance provided under Resolution No. 01/2019/NQ-HĐTP of the Supreme People’s Court. Specifically, the court found that calculating interest on interest in this manner violated the regulatory framework governing consumer credit.

Furthermore, the appellate court noted that while the contractual interest rate of 2.48% per month and the overdue rate of 3.72% (150% of the contractual rate) were within the legal parameters, the bank’s attempt to apply an effective rate of 4.15% per month for the period between September 2023 and August 2025 exceeded the contractually agreed-upon ceiling. Consequently, the court affirmed the lower court’s decision, denying the bank’s request for the additional 3.7 million VND it had sought.

Broader Implications for Consumer Credit

This case serves as a cautionary tale regarding the nuances of revolving credit. Financial experts often point out that credit card debt can spiral rapidly due to the interaction between high interest rates, late fees, and the specific order in which payments are applied.

For many consumers, the convenience of a 30-million-VND limit can mask the reality of the underlying debt structure. When a cardholder misses payments, the bank’s standard operating procedure—as seen here—is to enforce strict contractual clauses that prioritize the recovery of fees and interest before the principal. For the banking sector, this case reaffirms the necessity of transparency and strict adherence to State Bank of Vietnam regulations regarding the computation of interest on overdue debt. Courts are increasingly showing a willingness to intervene when bank calculations are perceived to be punitive or inconsistent with established national guidelines.

Financial Literacy and Regulatory Compliance

The legal outcome provides clarity for both financial institutions and borrowers. For institutions, the ruling underscores that judicial bodies will not automatically validate all internal bank calculation models if they deviate from regulatory standards, even if those models are embedded within signed contracts.

For the borrower, the case highlights the importance of engagement. Mr. P.’s absence during the court proceedings left his defense largely to the discretion of the court, illustrating that while courts may protect borrowers from excessive or illegal interest calculations, active participation in legal processes is vital for the protection of one’s financial interests.

As the financial landscape continues to evolve in Vietnam, the reliance on digital credit and cards is expected to grow. Consequently, the clarity provided by this appellate decision is likely to influence how other commercial banks structure their penalty and interest-accrual policies to avoid similar judicial rebuffs. Consumers are advised to regularly review their credit agreements, maintain awareness of the "order of payment" clauses, and seek legal or financial guidance when a debt becomes unmanageable, rather than allowing interest to accumulate through default.

Ultimately, this case is a stark reminder that the "cost of credit" is not merely the interest rate on the card but the cumulative impact of penalties and the potential for legal costs when financial obligations are not met. The final judgment, as recorded in Judgment No. 714/2026/DS-PT, confirms that while contractual obligations are binding, they remain subordinate to the overarching regulatory framework designed to ensure fair play in the consumer finance market.