What does it mean that interest is accrued on the balance of the digital yuan?

Author: MaoSphere

On December 31, 2025, the six major state-owned banks issued an announcement stating that, starting from January 1, 2026, they will pay interest on the balance of digital RMB wallets opened by customers in the aforementioned banks at the same rate as their current deposit rates, with the interest calculation and settlement rules being consistent with current deposits. This means that some funds in digital RMB wallets have shifted from "the original form of non-interest-bearing cash (M0)" to "the form of bank liabilities that can accrue interest (M1)."

Many people's first reaction is, "Isn't digital RMB just a digital form of cash? Cash never pays interest, so how come it can now?" Behind this question lies a significant shift: when funds are managed by a bank as deposits and interest is paid, in an accounting and legal sense, it is no longer just "the digital form of cash," but has entered the bank's liability side, becoming part of the deposit.

This transformation does not signify a change in the fundamental positioning of the digital yuan, but rather represents a "deposit-like" approach under specific wallet types, operating institutions, and terms. Understanding this requires examining several aspects, including the digital yuan's legal positioning, operational design, wallet tiers, monetary statistics, bank asset-liability relationships, and deposit insurance system. The People's Bank of China, in its "White Paper on the Progress of Digital Yuan Research and Development" (July 2021), clearly defined the "origin" of the digital yuan: it is "issued by the central bank," operates on a "two-tier" system, emphasizes "controllable anonymity," and, most importantly, "adheres to the M0 positioning and does not accrue interest." The intention behind this principle is very straightforward: the digital yuan is a retail central bank digital currency, primarily used to meet domestic retail payment needs, maintaining the stable structure of the financial system while avoiding a severe impact on bank liabilities. Based on this benchmark, if interest is paid on the "balance of a real-name digital RMB wallet," it is no longer in the form of "pure M0 digital cash," but rather enters the bank's balance sheet, forming a deposit liability of the bank to its customers. To understand this change, several legal and policy documents can provide insight. One is the "Draft Amendment to the Law of the People's Bank of China" (publicly soliciting opinions in October 2020), which clearly states that RMB includes both physical and digital forms, and that digital RMB is legal tender. Another is the "Deposit Insurance Regulations" (State Council Decree No. 660, effective May 1, 2015), which clarifies the coverage and maximum compensation limit of deposit insurance. The maximum compensation limit for the principal and interest of all insured deposit accounts of the same depositor in the same insured institution is RMB 500,000. This clause is the fundamental law for determining "which funds are eligible for deposit insurance." Cash is not considered a deposit and therefore not covered by deposit insurance; however, bank deposits (current and time deposits) are covered. Which portion of the digital yuan is covered by deposit insurance depends on how it is handled by banks. If banks accrue interest on the balance of a certain type of real-name wallet and include it in their financial statements as a deposit, then this portion of funds should be covered by deposit insurance. If the wallet balance is still managed as digital cash and does not accrue interest, it remains a form of legal tender, and its security comes from the legal status of legal tender and the credit of the central bank. Understanding the macro-level meaning of "interest accrual on balances" requires understanding the three levels of monetary statistics. M0 is cash in circulation, and the digital yuan is positioned as M0 in the white paper; M1 is narrow money, usually equal to M0 plus corporate demand deposits, reflecting "the readily available cash for corporate payments." In my country's statistical caliber, the consolidation of customer reserve funds of non-bank payment institutions has also affected the statistical structure of M1; M2 is broad money, based on M1 plus time deposits and other quasi-monetary instruments, representing a broader liquidity indicator for bank credit creation. The shift from "cash (M0)" to "demand deposits (M1)" represents a qualitative change: cash is not statistically considered bank deposits, and banks have no obligation to pay interest on it; while demand deposits are bank liabilities, requiring banks to pay interest, which can be used to extend loans or purchase securities on the asset side. Therefore, if certain real-name wallet balances are accrued interest and consolidated as deposits, it is no longer merely a digitization of cash, but rather enters the realm of bank asset and liability management and credit creation. A bank's balance sheet is a mirror. When customers deposit money into a bank, the bank creates a "deposit liability." On the asset side, the bank issues loans, purchases government bonds, deposits required reserves, and engages in interbank deposits or investments, generating revenue through interest rate spreads and intermediary services. The principle of credit creation is not complicated: assuming a required reserve ratio of 10%, under ideal conditions (without considering real-world constraints such as cash leakage, excess reserves, and insufficient loan demand), the theoretical deposit multiplier is approximately equal to 1/the required reserve ratio, or 10. In reality, loan demand, risk appetite, capital adequacy ratio, regulatory requirements, and the economic cycle all affect the real money multiplier. Looking at "balance-based interest calculation" within this framework, it may provide banks with more and relatively stable sources of liabilities, thus enabling them to have more sufficient lending capacity on the asset side. Of course, whether this capacity can be translated into actual credit and investment scale ultimately depends on the macroeconomic cycle, regulatory policies, and market demand. Wallet tiering and real-name authentication strength are the "yardsticks" for the digital yuan at the micro level. In simple terms: **Type I Wallets (Strong Real-Name Authentication)** **Verification Requirements:** Requires in-person verification at a bank branch to verify identity information and bind the user's bank account. This type of wallet has the highest level of real-name authentication. **Transaction Limits:** No transaction amount or number of transactions is capped. This is the only wallet type without transaction limits. **Suitable Scenarios:** Suitable for large-scale transactions by corporate users and frequent large-scale transfers/payments by individuals. Ideal for users with unlimited transaction limits. **Type II Wallets (Relatively Strong Real-Name Authentication)** **Verification Requirements:** Can be opened remotely online. Requires binding to the user's bank account and completion of strong identity authentication such as facial recognition.

Transaction Limit: Daily cumulative transaction limit is relatively high (specific details are subject to the operator's announcement, usually much higher than Class III and IV), meeting most daily payment needs of individuals.

Applicable Scenarios: Personal daily consumption and transfers, balancing convenience and transaction limits, making it one of the mainstream choices for individual users.

Class III Wallet (Basic Real-Name Registration)

Verification Requirements: Authentication with mobile phone number + ID card information, no bank account binding required, moderate real-name registration requirements.
• Transaction Limit: Daily cumulative transaction limit and wallet balance limit are both lower than Class II, meeting small-amount retail payments.
• Applicable Scenarios: Convenience store purchases, public transportation, food delivery payments, and other small-amount, high-frequency retail scenarios.

Type IV Wallet (Weak Real-Name/Anonymous)

• Verification Requirements: Registration only requires a mobile phone number, no ID card information required, lowest level of real-name authentication; supports registration with overseas mobile phone numbers and binding of foreign cards, i.e., "Tourist Wallet".
• Transaction Limits: Lowest daily transaction and wallet balance limits, only supports small-amount payments.
• Applicable Scenarios: Small-amount consumption by overseas tourists visiting China for short periods, and anonymous small-amount payment needs of domestic users.

The specific limits (single transaction, daily cumulative, balance limit), opening materials, and available functions of each type of wallet may vary depending on the operating institution and pilot region. The actual standards are subject to the requirements of the operating institution and regulators.

Understanding these tiers helps to grasp the practical boundaries of "which wallets accrue interest and which don't": Generally speaking, wallets with stronger identity verification are more likely to be deeply linked to bank accounts and are more easily consolidated into bank deposits; wallets with weaker identity verification are closer to the user experience of a "digital cash card," emphasizing convenience and privacy protection. The balance between privacy and compliance is a central theme in the design of the digital yuan system. The concept of "controlled anonymity," in short, means protecting user privacy as much as possible in small-amount, high-frequency everyday scenarios, but adhering to anti-money laundering, counter-terrorism financing, and anti-tax evasion compliance requirements when reaching higher amounts, frequencies, or specific business scenarios, and promoting stricter KYC and transaction reviews. Around this point, relevant domestic laws such as the Anti-Money Laundering Law, the Personal Information Protection Law, the Data Security Law, and the Cybersecurity Law provide a framework for privacy and compliance in the payment field. As a digital form of legal tender, the digital yuan must ensure both payment availability and convenience while safeguarding against financial risks. This combination of stability and speed relies on the synergy of institutional and technological mechanisms. Many are concerned whether this "interest calculation" will alter the fundamental positioning of the digital yuan as a "digitalized cash." A more prudent understanding is that the basic positioning of the digital yuan remains unchanged; it is still a legal digital currency within the M0 denomination. In terms of operational details, allowing specific types of wallet balances to be "deposited" at the bank level is a "layered and coexisting" approach. The benefits include a user experience closer to a bank account, increasing incentives for fund retention; banks gain a low-cost, stable source of liabilities, improving their asset allocation capabilities; and at the macro level, the monetary statistical structure will adjust accordingly, with some funds originally in the M0 denomination being transferred to M1. This does not mean the digital yuan is entirely shifting to "deposit-like" status, but rather that "deposit relationships are formed within specific wallet types and scenarios." Therefore, boundaries and details are crucial.

Some people have linked this change to the internationalization of the RMB. The digital RMB has indeed improved the payment experience for tourists visiting China: the tourist wallet supports binding overseas mobile phone numbers and foreign cards, eliminating the cumbersome steps of opening a local account, and making the payment process more direct under compliance. For example:

Wallet Opening (Category IV, Exclusively for Tourists)

• Entry: Digital RMB APP or bank APP, select "Register for Overseas Personnel / Tourist Wallet", enter the overseas mobile phone number to obtain the verification code, complete the basic verification to open the wallet, no domestic bank account required.
• Real-name verification strength: Only mobile phone number verification, weak real-name verification, in line with the central bank's Category IV wallet rules, the limit is a very low daily transaction/balance limit (subject to the announcements of various banks, usually a few thousand yuan per day, and a balance limit of around 10,000 yuan).

Foreign Card Top-up and Fund Sources

• Mainstream Method: Bind overseas credit/debit cards such as Visa and Mastercard, and initiate top-up through bank apps or digital RMB apps. Supports online payment channels for foreign cards. Some banks support authorization top-up via overseas mobile banking.
• Backup Plan: Deploy hardware wallet exchange machines at hubs such as airports and high-speed rail stations, allowing direct exchange of foreign cards for digital RMB hardware wallets (e.g., ICBC, CCB).

Payment and Usage

• Online: Supports digital RMB payments on e-commerce and food delivery platforms; Offline: Scan code or NFC "tap-to-pay" payment, covering high-frequency scenarios such as retail, transportation, and catering.
• Offline Payment: Supports dual offline payment, adaptable to scenarios without network access (e.g., some scenic spots and subways).

Cancellation and Refund

• Cancellation can be done remotely via the APP. The remaining balance can be refunded to the original foreign card (according to foreign card rules), or a cash refund can be processed at a designated branch (supported by some banks).

At the same time, you also need to carefully review the fees and limits of the services: the fee rules for transfers, withdrawals, cross-bank transactions, and cross-wallets, as well as the details of limit management, may vary among different operating institutions and banks; higher-level wallets often have wider limits and functions, but the corresponding KYC and compliance requirements are also more stringent. A simple suggestion is to carefully read the service agreement and bank announcements of the wallet you use, clarify your wallet type, fund form, and rights and obligations, especially confirming "whether it accrues interest," "whether it is consolidated as a deposit," and "whether it is subject to deposit insurance."

The development of the digital RMB has been a process of "steady and cautious advancement." The initial phase can be traced back to around 2014, when the People's Bank of China (PBOC) established a research group on legal digital currency to conduct research and pilot preparations focusing on the overall framework, key technologies, application ecosystem, and policy support. Between 2020 and 2021, pilot programs were launched in Shenzhen, Suzhou, Xiong'an New Area, Chengdu, and the Beijing Winter Olympics, gradually expanding to more cities and provinces, broadening the "10+1" pattern to wider coverage. Since 2022, ecosystem development has accelerated, with application scenarios expanding from the retail sector to the corporate sector: salary payments, tax payments, government subsidies, and supply chain finance are all being explored. Support for inbound tourists is also increasing, with tourist wallets supporting registration with overseas mobile phone numbers and binding to foreign cards, thus alleviating the "inconvenience of payment in China" for many. Simultaneously, the PBOC, together with the Bank for International Settlements (Hong Kong) Innovation Centre and other relevant central banks, participated in "Project mBridge," conducting pilot programs and technical verifications focusing on the efficiency, compliance, and risk control of cross-border payments. With the coordinated evolution of economic cycles, monetary policy, and fintech, the digital yuan will continue to optimize its management and service system, infrastructure construction, and cross-border application exploration. What the public needs to do is: understand the rights and obligations of different wallet types, verify specific interest rates and fees, prioritize privacy and security, and respect compliance and risk control boundaries. On this path of Chinese-style digital currency, "authenticity, reliability, and orderly progress" are key. The "interest-bearing on real-name wallet balances" currently in the market is more like allowing banks to manage and pay interest on specific types of wallets as if they were deposits; it's a differentiated arrangement at the operational level, not a fundamental disruption of its positioning. It will change some people's fund retention habits and impact banks' liabilities and asset allocation, reflected in changes to the monetary statistical structure. Whether deposit insurance is available, how interest is calculated and settled, fee rates and limits, and privacy and compliance boundaries should all be based on official documents from operating institutions and regulatory authorities. For the long-term development of the digital yuan, steady and prudent progress, authenticity and reliability, and accurate citation are the most important principles. As members of the public, what we need to do is: understand wallet tiers, identify fund types, respect compliance and risk control, reasonably assess returns and costs, and utilize the digital yuan to seek a better balance between "inclusivity, resilience, privacy, and security."