I. The Regulatory Approach Has Changed: From ”Auditing Accounts” to ”Comparison”

The core change in Phase IV of the Golden Tax System is not ”stricter audits,” but ratherThe comparison criteria have changed. In the past, tax authorities primarily checked whether the accounting records and tax returns were consistent with each other; now, the system automatically cross-checks invoice flows, cash flows, goods flows, and contract flows against third-party data.

The specific data sets linked include: invoice issuance and receipt data, bank and third-party payment transaction records, market supervision registration and equity information, social security contribution records, customs declarations and foreign exchange receipts and payments, as well as actual transaction data retained by e-commerce platforms. If there are logical conflicts between data from multiple sources, the system automatically generates a risk alert ticket,Real-time scanning has replaced the previous model of annual assessments.The

This means that the leeway for adjusting accounts at year-end has been significantly reduced. Data discrepancies may be flagged as early as the month they occur, and by the time the annual tax settlement and finalization process rolls around, the optimal window for self-inspection and correction has often already passed.

II. The Four Types of Indicators Most Likely to Trigger Alerts

Indicator 1: A significant discrepancy between the categories and specifications of purchased and sold products. The system has added a smart product code comparison feature that verifies the product names, specifications, models, materials, quantities, unit prices, and total amounts for both purchases and sales. Typical scenarios include: issuing invoices for daily necessities when purchasing building materials; small-value purchases of 1,000 yuan matched with large-value sales of several hundred thousand yuan; and situations where the purchase unit price for the same item is consistently higher than the sales unit price over an extended period. Such discrepancies trigger an audit without the need for manual review.

Indicator 2: Long-term transactions consisting solely of inflows with no outflows, and large-amount inflows remaining unposted. Market-oriented enterprises are characterized by inventory turnover. If, over a long period, the books show only purchases but no sales or inventory outflows, the system is likely to conclude that the company is maintaining two sets of books—one for internal and one for external use—or using private accounts to conceal revenue. Consequences may include on-site tax inventory audits, verification of transaction records for both official and private accounts, mandatory reversal of improperly claimed input tax credits, and retroactive investigations into upstream suppliers.

Indicator 3: The tax burden ratio deviates from the industry's reasonable range. The system automatically compares tax burden figures against industry benchmarks in the same region and cross-checks the reported data for VAT, corporate income tax, and business income. A tax burden rate that is significantly lower than the industry average is one of the most classic early warning signs.

Indicator 4: Concealing income through personal bank accounts. The scope of regulatory oversight has expanded from corporate accounts to the personal accounts of legal representatives, shareholders, and financial personnel. The system captures records of large-amount, high-frequency, and time-concentrated incoming payments and compares them with the invoiced revenue reported by the company to identify discrepancies. Common indicators include single-day cash deposits or withdrawals exceeding 50,000 yuan, cumulative high-value domestic transfers to personal accounts, and large single-day transfers from corporate to personal accounts—The specific monitoring thresholds shall be determined in accordance with the criteria established by the competent tax authority.. Splitting multiple small transfers will still be identified as a single transaction, because the system reviews the entire year's transaction history to identify patterns in business revenue.

III. The Chain Reaction of Consequences Following a Designation as “Abnormal”

Once an indicator is triggered and verified, the consequences are typically cumulative:

• Back taxes + late payment penalties: A late payment penalty of 0.05% will be charged daily
• Administrative Fines: Typically 0.5 to 5 times the amount of underpaid taxes
• Tax Credit Downgrade: After being downgraded to Class C or Class D, a business may lose eligibility for benefits such as the “collect-and-refund” tax system and tax and fee reductions for micro and small enterprises.
• Dynamic Adjustment of Invoice Limits: Invoice issuance limits and claim amounts have been reduced
• Interdependent Effects: Tax credit ratings can affect government procurement bids, annual reviews of industry qualifications, and corporate credit lines from banks.
• Coordination Among Upstream and Downstream Parties: If an upstream supplier goes missing or becomes uncontactable, the invoices obtained by downstream entities will also be subject to retroactive investigation.

IV. Monthly Self-Inspection Checklist (Ready to Use)

1. Reconcile platform transaction records with reported income: Export all cash flows from the past 12 months and compare them with the income reported on VAT and corporate income tax returns. If the difference exceeds 10%, this is considered high risk; file amended returns for any uninvoiced income as soon as possible.
2. Compile a list of all business-related bank accounts: Track payments received via the personal bank cards, WeChat, and Alipay accounts of legal representatives, shareholders, and financial staff. If monthly operating receipts reach a significant amount, transfer the funds to the business account as soon as possible and file a supplementary income tax return.
3. Verify input cost invoices on a transaction-by-transaction basis: Ensure that each invoice corresponds to actual purchase, logistics, and warehouse receipt documents; immediately exclude any invoices that do not correspond to actual business transactions.
4. Reconcile Inventory with Purchase and Sales Ledgers: Avoid a situation where goods are only received but never shipped for an extended period; be sure to retain shipping documents and logistics reconciliation statements.
5. Review of Eligibility Criteria for Tax Incentives: Preferential policies are subject to substantive conditions; if the business activities do not align with the substantive requirements, even if the benefits have already been received, the taxpayer will be required to pay back taxes retroactively.
6. Factors for Verifying the Authenticity of Business Operations: Actual business address, required staff, social security contributions, and records of warehousing or product sourcing—to avoid being classified as a shell entity

V. Two Common Misconceptions

Misconception 1: ”If you haven’t issued an invoice, you don’t have to pay taxes.” E-commerce platforms maintain official records of both orders and online payments received; income for which no invoice has been issued must also be reported accurately. Invoices serve as proof of receipt but are not the sole basis for tax liability.

Misconception 2: ”Regulation of sole proprietorships is lax, and the fixed-rate tax collection method can be applied arbitrarily.” In 2026, the fixed-rate taxation system for sole proprietors and small-scale taxpayers will be comprehensively tightened. The system will automatically monitor revenue levels, cash flow, and the consistency between purchases and sales. A sudden surge in cash flow, prolonged zero tax filings, or abnormal costs may result in the immediate revocation of fixed-rate taxation eligibility and a switch to audited taxation, along with retroactive tax assessments for past periods.

The essence of the Fourth Phase of the Golden Tax System is to eliminate information asymmetries. The era of reducing tax burdens through ”failure to file returns, using personal bank accounts for business transactions, and purchasing invoices from third parties” has come to an end; the only sustainable path is to ensure that business operations are conducted in good faith.

Qicaiying offers services to standardize corporate accounting practices, conduct health checks on purchases and sales, and perform tax risk self-assessments, helping businesses address any issues before warning signals are triggered.