Document and Entity Information Document Information [Table] Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact [Member] Business Contact Class of Stock [Axis] Class of Stock [Domain] ADR [Member] ADS Common Stock [Member] Ordinary shares Common Class A [Member] Class A ordinary shares Document Information [Line Items] Document and Entity Information Entity Registrant Name Entity Central Index Key Document Type Document Registration Statement Document Annual Report Document Transition Report Document Shell Company Report Document Period End Date Current Fiscal Year End Date Document Fiscal Year Focus Securities Act File Number Entity Incorporation, State or Country Code Amendment Flag Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, Country Contact Personnel Name Country Region City Area Code Local Phone Number Contact Personnel Email Address Title of 12(b) Security Trading Symbol Security Exchange Name Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Emerging Growth Company ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Document Accounting Standard Entity Shell Company Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Auditor Name Auditor Location Auditor Firm ID CONSOLIDATED BALANCE SHEETS Statement [Table] Statement [Line Items] Statement Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and cash equivalents Restricted Cash Restricted cash (including RMB771,798 and RMB1,470,555 from the consolidated trusts as of December 31, 2024 and 2025, respectively) Restricted cash Short-Term Investments Short term investments Amount of prepaid security deposit, which are usually due within one year (or one business cycle). Prepaid Security Deposit, Current Security deposit prepaid to third-party guarantee companies Security deposit prepaid to third-party guarantee companies Funds receivable from third party payment service providers, which are usually due within one year (or one business cycle). Funds Receivable from Service Providers, Current Funds receivable from third party payment service providers Amount of net accounts receivable and contract assets, which are usually due within one year (or one business cycle). Accounts Receivable and Contract Assets, Net. Accounts receivable and contract assets, net (net of allowance of RMB261,496 and RMB181,843 as of December 31, 2024 and 2025, respectively) Accounts receivable and contract assets, net Amount, after allowance for credit loss, of notes receivable, classified as current. Notes Receivable Net Current Financial assets receivable, net (net of allowance of RMB390,649 and RMB380,406 as of December 31, 2024 and 2025, respectively) Other Receivables, Net, Current Amounts due from related parties (net of allowance of RMB7,030 and nil as of December 31, 2024 and 2025, respectively) Amounts due from related parties Other Receivable, after Allowance for Credit Loss, Current, Related Party [Extensible Enumeration] Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements which are usually due within one year (or one business cycle). Loans Receivable, Net, Current Loans receivable, net (including RMB6,956,948 and RMB12,399,462 from the consolidated trusts as of December 31, 2024 and 2025, respectively) Loans receivable, net Prepaid Expense and Other Assets, Current Prepaid expenses and other assets (including RMB109,428 and RMB108,174 from the consolidated trusts as of December 31, 2024 and 2025, respectively) Prepaid expenses and other assets Assets, Current Total current assets Assets, Noncurrent [Abstract] Non-current assets: Amount of net accounts receivable and contract assets, that are expected to be realized after one year or beyond the normal operating cycle, if longer. Accounts Receivable And Contract Assets, Net Noncurrent Accounts receivable and contract assets, net-noncurrent (net of allowance of RMB10,540 and RMB6,189 as of December 31, 2024 and 2025, respectively) Accounts receivable and contract assets, net-noncurrent Amount, after allowance for credit loss, of financing receivable, classified as noncurrent. Notes Receivable Net Noncurrent Financial assets receivable, net-noncurrent (net of allowance of RMB55,440 and RMB49,776 as of December 31, 2024 and 2025, respectively) Other Receivable, after Allowance for Credit Loss, Noncurrent Amounts due from related parties, non-current (net of allowance of RMB5 and nil as of December 31, 2024 and 2025, respectively) Amounts due from related parties, non-current Other Receivable, after Allowance for Credit Loss, Noncurrent, Related Party [Extensible Enumeration] Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans classified as non current. Excludes loans and leases covered under loss sharing agreements and loans held for sale. Loans and Leases Receivable, Net Non Current Loans receivable, net-noncurrent (including RMB631,575 and RMB1,754,356 from the consolidated trusts as of December 31, 2024 and 2025, respectively) Loans receivable, net-noncurrent Property, Plant and Equipment, Net Property and equipment, net The amount of land use rights, net. Land use rights, net. Land use rights, net Land use rights, net Intangible Assets, Net (Excluding Goodwill) Intangible assets Intangible assets Goodwill Goodwill Deferred Income Tax Assets, Net Deferred tax assets Other Assets, Noncurrent Other non-current assets Assets, Noncurrent Total non-current assets Assets TOTAL ASSETS Liabilities and Equity [Abstract] LIABILITIES AND EQUITY Liabilities [Abstract] LIABILITIES No definition available. Liabilities including Amounts of the Consolidated VIEs and Trusts [Abstract] Liabilities including amounts of the consolidated VIEs and trusts without recourse to the Company (Note 1 and 2): Liabilities, Current [Abstract] Current liabilities: The amount payable to investors of the consolidated trusts. Funds Payable To Investors Of Consolidated Trust Payable to investors of the consolidated trusts-current Accrued Liabilities and Other Liabilities Accrued expenses and other current liabilities Total Accrued expenses and other current liabilities Other Liabilities, Current Amounts due to related parties Amounts due to related parties Other Liability, Current, Related Party [Extensible Enumeration] Short-Term Bank Loans and Notes Payable Short term loans Short term loans Convertible Notes Payable, Current Carrying amount of notes Convertible senior notes-current The current carrying amount of the stand ready liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. Guarantee Liabilities, Stand Ready Ending balance Beginning balance Guarantee liabilities-stand ready The current carrying amount of the contingent liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. Contingent Guarantee Obligations Current Ending balance Beginning balance Guarantee liabilities-contingent Accrued Income Taxes, Current Income tax payable Income tax payable Carrying value as of the balance sheet date of obligations incurred and payable for other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Other Taxes Payable, Current Other tax payable Liabilities, Current Total current liabilities Liabilities, Noncurrent [Abstract] Non-current liabilities: Deferred Income Tax Liabilities, Net Deferred tax liabilities Deferred tax liabilities The amount payable to investors of the consolidated trusts, classified as noncurrent. Funds Payable To Investors Of Consolidated Trust, Noncurrent Payable to investors of the consolidated trusts-noncurrent Convertible Notes Payable, Noncurrent Convertible senior notes-noncurrent Convertible notes-noncurrent Other Liabilities, Noncurrent Other long-term liabilities Liabilities, Noncurrent Total non-current liabilities Liabilities Total liabilities TOTAL LIABILITIES TOTAL LIABILITIES Commitments and Contingencies Contingencies (Note 19) Equity, Attributable to Parent [Abstract] SHAREHOLDERS' EQUITY EQUITY Common Stock, Value, Issued Ordinary shares (USD 0.00001 par value per share 5,000,000,000 shares authorized, 296,540,988 shares issued and 283,981,320 shares outstanding as of December 31, 2024 and 283,019,282 shares issued and 243,823,900 shares outstanding as of December 31, 2025, respectively) Ordinary shares (USD0.00001 par value per share 5,000,000,000 shares authorized, 296,540,988 shares issued and 283,981,320 shares outstanding as of December 31, 2024, and 283,019,282 shares issued and 243,823,900 shares outstanding as of December 31, 2025, respectively) Treasury Stock, Common, Value Treasury stock Additional Paid in Capital, Common Stock Additional paid-in capital Retained Earnings (Accumulated Deficit) Retained earnings Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss) Equity, Attributable to Parent TOTAL QFIN HOLDINGS, INC EQUITY TOTAL EQUITY Equity, Attributable to Noncontrolling Interest Non-controlling interests Equity, Including Portion Attributable to Noncontrolling Interest Balance Ending Balance Beginning TOTAL EQUITY Liabilities and Equity TOTAL LIABILITIES AND EQUITY TOTAL LIABILITIES AND EQUITY Consolidated Entities [Axis] Consolidated Entities [Domain] Represents the information pertaining to consolidated Trusts. Consolidated Trusts [Member] Consolidated Trusts Accounts Receivable, Allowance for Credit Loss, Current Accounts receivable and contract assets, allowance Financing Receivable, Allowance for Credit Loss, Current Financial assets receivable, allowance Amount of allowance for due from related parties classified as current. Allowance For Due From Related Parties Current Amounts due from related parties, current, allowance Accounts Receivable, Allowance for Credit Loss, Noncurrent Accounts receivable and contract assets, net-noncurrent, allowance Financing Receivable, Allowance for Credit Loss, Noncurrent Financial assets receivable, net-noncurrent, allowance Amount of allowance for due from related parties classified as non current. Allowance For Due From Related Parties Non Current Amounts due from related parties, non current, allowance Common Stock, Par or Stated Value Per Share Ordinary shares, par value (in dollars per share) Common Stock, Shares Authorized Ordinary shares, authorized (in shares) Common Stock, Shares, Issued Balance Ending (in shares) Balance Beginning (in shares) Ordinary shares, issued (in shares) Common Stock, Shares, Outstanding Ordinary shares, outstanding (in shares) CONSOLIDATED STATEMENTS OF OPERATIONS Product and Service [Axis] Product and Service [Domain] Represents the information pertaining to revenue from credit risk-taking model. Credit Risk Taking Model [Member] Credit driven services Represents the information pertaining to revenue from loan facilitation and servicing fees under risk taking model. Loan Facilitation And Servicing Fees Risk Taking [Member] Loan facilitation and servicing fees-capital heavy Financial Service [Member] Financing income Represents the information pertaining to revenue from releasing of guarantee liabilities. Releasing Of Guarantee Liabilities [Member] Revenue from releasing of guarantee liabilities Represents the information pertaining to revenue from other services under risk taking model. Other services fees. Other services fees Represents the information pertaining to revenue from platform service. Platform Service [Member] Platform services Represents the information pertaining to revenue from loan facilitation and servicing fees-capital light under credit risk-free model. Loan Facilitation And Servicing Fees Capital Light [Member] Loan facilitation and servicing fees-capital light Represents the information pertaining to referral services fees revenues. Referral Services [Member] Referral services fees Represents the information pertaining to revenue from other services under credit risk-free model. Other Services Risk Free Model [Member] Other services fees Revenues [Abstract] Revenue, net of value-added tax and related surcharges: Revenue from Contract with Customer, Excluding Assessed Tax Net revenue Total net revenue Costs and Expenses [Abstract] Operating costs and expenses: Cost of Goods and Services Sold Facilitation, origination and servicing (including costs charged by related parties of RMB118,849, RMB116,511 and RMB123,968 for the years ended December 31, 2023, 2024 and 2025, respectively) Interest expense the Group pays to institutional funding partners of the Consolidated Trusts and the asset backed securities, trust issuance and management costs and system service fees. Funding Costs Funding costs Selling and Marketing Expense Sales and marketing (including expenses charged by related parties of RMB223,627, RMB103,786 and RMB156,020 for the years ended December 31, 2023, 2024 and 2025, respectively) General and Administrative Expense General and administrative (including expenses charged by related parties of RMB13,610, RMB13,110 and RMB12,263 for the years ended December 31, 2023, 2024 and 2025, respectively) Provision for Loan, Lease, and Other Losses Provision for loans receivable The amount of expenses related to provision for financial asset receivable. Provision for Financial Asset Receivable Provision for financial assets receivable (including provision generated from related parties of RMB633, RMB(200) and RMB(1,150) for the years ended December 31, 2023, 2024 and 2025, respectively) Amount of expense related to write-down of receivables and contract assets to the amount expected to be collected. Provision for Accounts Receivable and Contract Assets Provision for accounts receivable and contract assets (including provision generated from related parties of RMB(10,197), RMB1,861 and RMB(1,523) for the years ended December 31, 2023, 2024 and 2025, respectively) The amount of provision for contingent liabilities. Provision for Contingent Liabilities Provision for contingent liabilities Costs and Expenses Operating costs and expenses Services received from related party Total operating costs and expenses Operating Income (Loss) Income from operations Interest Income (Expense), Nonoperating Interest income, net Gain (Loss), Foreign Currency Transaction, before Tax Foreign exchange (losses) gains Foreign exchange gain Derivative, Gain (Loss) on Derivative, Net Fair value change of derivatives Gain (Loss) on Extinguishment of Debt Gain on debt extinguishment Gain on debt extinguishment Investment Income, Net Investment loss Other Nonoperating Income (Expense) Other income, net Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Net income before taxes Income before income tax expense Income before income tax expenses Income Tax Expense (Benefit) Income tax expense Income tax expenses Income tax expense Income tax benefit (expense) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income attributable to shareholders of the Company Net income Net income Net income (loss) Net Income (Loss) Attributable to Noncontrolling Interest Net loss attributable to non-controlling interests Net Income (Loss) Available to Common Stockholders, Basic Net income attributable to ordinary shareholders of the Company Net income attributable to ordinary shareholders of the Company NET INCOME PER SHARE Net income per ordinary share attributable to ordinary shareholders of Qfin Holdings, Inc. Earnings Per Share, Basic Basic (Per share) Basic net income per share (in RMB per share) Earnings Per Share, Diluted Diluted (Per share) Diluted net income per share (in RMB per share) Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Weighted average shares used in calculating net income per ordinary share Denominator: Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Weighted average ordinary shares outstanding used in computing basic income per ordinary share Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Weighted average ordinary shares outstanding used in computing diluted income per ordinary share Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Domain] Related Party [Member] Related parties Costs and Expenses, Related Party Facilitation, origination and servicing costs charged by related parties Amount of selling and marketing expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party. Related Party Transaction, Selling and Marketing Expenses from Transactions with Related Party Sales and marketing expenses charged by related parties Amount of general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party. Related Party Transaction, General and Administrative Expenses from Transactions with Related Party General and administrative expenses charged by related parties The amount of expenses related to provision for financial asset receivable from related parties. Provision for Financial Asset Receivable from Related Parties Provision for financial asset receivable, including provision generated from related parties Amount of expense related to write-down of receivables and contract assets to the amount expected to be collected from related parties. Provision for Accounts Receivable and Contract Assets from Related Parties Provision for accounts receivable and contract assets, including provision charged by related parties Entity Listing, Depository Receipt Ratio ADS ratio for net income per ADS calculation CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME OR LOSS Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income, net of tax of nil: Other comprehensive income, net of tax of nil: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustment Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss) Other comprehensive income (loss) Other comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total comprehensive income Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive loss attributable to non-controlling interests Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of comprehensive income (loss) available to common shareholders. Comprehensive Income (Loss), Net of Tax, Attributable to Common Stockholders, Basic Comprehensive income attributable to ordinary shareholders Comprehensive income attributable to ordinary shareholders Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Other comprehensive income, net of tax CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Equity Components [Axis] Equity Component [Domain] Additional Paid-in Capital [Member] Additional Paid-in Capital Additional paid-in capital Treasury Stock, Common [Member] Treasury stock Retained Earnings [Member] Retained earnings Accumulated Retained Earnings AOCI Attributable to Parent [Member] Other Comprehensive (loss) Income