Operation Guide | Notice of the State Taxation Administration on Doing a Good Job in Real-Name Authentication of Taxpayers and Fee Payers and the Real-Name Authentication Operation Process

The national electronic tax bureau underwent a comprehensive upgrade and adjustment on the evening of January 20, 2026. Starting January 21, 2026, when you handle important tax-related business such as invoice issuance, if the authentication level of your login method is lower than the security authentication level required for the business, the system will require secondary authentication. Verification must be completed via the mobile phone number reserved with a UnionPay card or the National Network Identity Authentication APP before the business can continue.

If you are atLingshuitongWhen the platform issues invoicesDisplay issuance failure, and inNoteDisplayed in: [Warm reminder：Your current authentication level cannot access this function, please authenticate first]，You need to follow the steps belowAtProceed via the E-Tax Bureau web portal or APPVerificationOperation, after successful authentication, simply reissue the failed invoice on the platform.

Real-name authentication operation process

(1) Operation process of the PC end of the electronic tax bureau

1.Log in to the Electronic Tax Bureau website and click [Account Center] in the upper right corner

2.In the account center, select [Personal Information Management] — [Mobile Number Modification] — [UnionPay Verification]

3.Click [UnionPay Authentication] and follow the promptsFill in informationComplete authentication.

（II) electronic tax bureauAPPClient operation process

1. Open the tax bureau APP and log in

2. Click [My] - [Account Center]

3. Select Personal Information Management

4. Click the mobile number

5.If the mobile phone label is [Other], you need to click the [Upgrade Level] button and use a UnionPay mobile number for verification; after completion, the level can be upgraded.

6.After clicking to upgrade the level, UnionPay mobile number verification will appear. You need to enter the bank card and mobile number bound to that mobile number, receive the verification code, and submit it to complete the level upgrade.

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