NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
Mar. 31, 2025
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations Mitek Systems, Inc. (“Mitek,” the “Company,” “we,” “us,” and “our”) is a pioneer in mobile image capture and a global provider of solutions in the fraud prevention, digital identity verification, and cybersecurity markets. Our products address the increasing sophistication of fraud in areas such as new account openings, digital account access, and payments. Utilizing artificial intelligence, computer vision, and proprietary biometrics, our enterprise-grade verification tools protect organizations from escalating check fraud, ongoing account opening fraud, and new cyber threats such as deepfakes and voice clones. Mitek’s Mobile Check Deposit product is trusted by consumers for its convenience and accuracy verifying checks for deposit, facilitating approximately 1.2 billion transactions annually. This solution powers secure, fast, and convenient deposit services for many organizations, enhancing consumer experience. We serve over 7,900 financial services organizations, financial technology (“fintech”) brands, telecommunications companies, and marketplace brands globally. Our verification and fraud detection technology is embedded directly within mobile and web applications, providing seamless verification at every touchpoint in the customer lifecycle. By equipping banks, marketplaces, and fintech platforms with these tools, we help reduce the costs associated with fraud, impersonation, Know Your Customer (“KYC”) and anti-money laundering (“AML”) compliance. Additionally, our solutions improve the customer experience, help to ensure regulatory compliance, and lower operational costs.
Basis of Presentation	Basis of Presentation The accompanying unaudited interim condensed consolidated financial statements of the Company as of and for the three and six months ended March 31, 2025 have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X and, accordingly, they do not include all information and footnote disclosures required by accounting principles generally accepted in the U.S. (“GAAP”). The Company believes the footnotes and other disclosures made in the financial statements are adequate for a fair presentation of the results of the interim periods presented. The financial statements include all adjustments (solely of a normal recurring nature) which are, in the opinion of management, necessary to make the information presented not misleading. These financial statements and the accompanying notes should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2024, filed with the U.S. Securities and Exchange Commission (“SEC”) on December 16, 2024 (the “2024 Annual Report”). Certain amounts within the prior period’s condensed consolidated balance sheet have been reclassified to conform to the current period presentation. Income tax payables and accrued interest payable were presented separately on the condensed consolidated balance sheet as of September 30, 2024, however, they are included in the other current liabilities line in the consolidated balance sheet as of March 31, 2025. The reclassification, which is considered to be immaterial to the previously issued condensed consolidated financial statements for the corresponding prior period in fiscal 2024, did not change other amounts reported within the condensed consolidated balance sheet, statement of operations and comprehensive income (loss), or statement of stockholders’ equity. Results for the three and six months ended March 31, 2025, are not necessarily indicative of results for any other interim period or for a full fiscal year.
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of certain assets, liabilities, revenue, expenses, deferred taxes, and related disclosure of contingent assets and liabilities. On an ongoing basis, management reviews its estimates based upon currently available information. Actual results could differ materially from those estimates. These estimates include, but are not limited to, assessing the collectability of accounts receivable, estimation of the value of stock-based compensation awards, fair value of assets and liabilities acquired, impairment of goodwill, useful lives of intangible assets, standalone selling price related to revenue recognition, estimated variable consideration in contracts, contingent consideration, and income taxes.
Recently Adopted Accounting Pronouncements, Change in Significant Accounting Policy and Recently Issued Accounting Pronouncements	Recently Adopted Accounting Pronouncements The Company did not adopt any new accounting pronouncements in the six months ended March 31, 2025. Change in Significant Accounting Policy The Company’s significant accounting policies are disclosed in the Company’s audited condensed consolidated financial statements and related notes thereto included in the Company’s 2024 Annual Report. There have been no changes to these accounting policies through March 31, 2025. Recently Issued Accounting Pronouncements In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2024-03, “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses” (“ASU 2024-03”), which requires disaggregation of certain costs in a separate note to the financial statements, such as the amounts of employee compensation, depreciation and intangible asset amortization, included in each relevant expense caption in annual and interim consolidated financial statements. ASU 2024-03 is effective for annual periods beginning after December 15, 2026 and for interim periods beginning after December 15, 2027 on a retrospective or prospective basis, with early adoption permitted. The Company is evaluating the effect that ASU 2024-03 will have on its financial statement disclosures. In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, amending existing income tax disclosure guidance, primarily requiring more detailed disclosure for income taxes paid and the effective tax rate reconciliation. The ASU is effective for annual reporting periods beginning after December 15, 2024, with early adoption permitted and can be applied on either a prospective or retroactive basis. The Company is currently evaluating the ASU to determine its impact on its income tax disclosures. In November 2023, the FASB issued ASU No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures” (“ASU 2023-07”), which requires additional operating segment disclosures in annual and interim consolidated financial statements. ASU 2023-07 is effective for annual periods beginning after December 15, 2023 and for interim periods within fiscal years beginning after December 15, 2024 on a retrospective basis, with early adoption permitted. The Company will adopt ASU 2023-07 in the fourth quarter of fiscal 2025 and does not expect the additional required disclosures to have a material impact on its financial statements. In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, and also issued subsequent amendments to the initial guidance (collectively, Topic 848). Topic 848 provides optional guidance for contract modifications and certain hedging relationships associated with the transition from reference rates that are expected to be discontinued. The Company will adopt Topic 848 when the relevant contracts are modified upon transition to alternative reference rates. The Company does not expect the adoption of Topic 848 will have a material impact on the condensed consolidated financial statements. No other new accounting pronouncement issued or effective during the six months ended March 31, 2025 had, or is expected to have, a material impact on the Company’s condensed consolidated financial statements.
Revenue Recognition	Nature of Goods and Services The following is a description of principal activities from which the Company generates its revenue. Contracts with customers are evaluated on a contract-by-contract basis as contracts may include multiple types of goods and services as described below. Software and Hardware Software and hardware revenue is generated from on premise software license sales, as well as sales of on premise appliance products. Software is typically sold as a time-based license with a term of one to three years. For software license agreements that are distinct, the Company recognizes software license revenue upon delivery and after evidence of a contract exists. Our standard payment terms are generally no more than 60 days. Invoices for software are typically issued when the license is made available for customer use. Services and Other Services and other revenue is generated from the sale of software as a service (“SaaS”) products and services, maintenance associated with the sale of on premise software licenses, and consulting and professional services. The Company’s SaaS offerings give customers the option to be charged upon their incurred usage in arrears (“Pay as You Go”), or commit to a minimum spend over their contracted period, with the ability to purchase additional transactions above the minimum during the contract term. Revenue related to Pay as You Go contracts are generally recognized based on the customer’s actual usage, in the period of usage. For contracts which include a minimum commitment, the Company is stand-ready to provide the services throughout the contract term, and revenue is primarily recognized on a ratable basis over the contract period including an estimate of usage above the minimum commitment. Usage above minimum commitment is estimated by looking at historical usage, expected volume, and other factors to project usage for the remainder of the contract term. The estimated usage-based revenues are constrained to the amount the Company expects to be entitled to receive in exchange for providing access to its platform. Maintenance and support services generally call for the Company to provide software updates and technical support to customers and is recognized ratably over the term of the contract as this is the period the services are delivered. If professional services are deemed to be distinct, revenue is recognized as services are performed. The Company does not view the signing of the contract or the provision of initial setup services as discrete earnings events that are distinct. Our standard payment terms are generally no more than 60 days. SaaS (other than Pay as You Go) and maintenance services are typically invoiced annually in advance, and consulting and professional services are typically invoiced at the time of sale. Significant Judgments in Application of the Guidance The Company uses the following methods, inputs, and assumptions in determining amounts of revenue to recognize: Identification of Performance Obligations For contracts that contain multiple performance obligations, which include combinations of software licenses, maintenance, and services, the Company accounts for individual goods or services as a separate performance obligation if they are distinct. The good or service is distinct if the good or service is separately identifiable from other items in the arrangement and if a customer can benefit from it on its own or with other resources that are readily available to the customer. If these criteria are not met, the promised goods or services are accounted for as a combined performance obligation. Determination of Transaction Price The transaction price is determined based on the consideration to which the Company will be entitled in exchange for transferring products or services to the customer. The Company includes any fixed charges within its contracts as part of the total transaction price. To the extent that variable consideration is not constrained, the Company includes an estimate of the variable amount, as appropriate, within the total transaction price and updates its assumptions over the duration of the contract. Assessment of Estimates of Variable Consideration Certain of the Company’s contracts with customers contain some component of variable consideration; however, variable consideration will only be included in the transaction price to the extent it is probable that a significant reversal of revenues recognized will not occur when the uncertainty associated with the variable consideration is resolved. The Company may constrain the estimated transaction price in the event of a high degree of uncertainty as to the final consideration amount owed because of an extended length of time over which the fees may be adjusted or due to uncertainty surrounding collectability. The Company estimates variable consideration in its contracts primarily using the expected value method as the Company believes this method represents the most appropriate estimate for this consideration, based on historical usage trends, the individual contract considerations, and its best judgment at the time. Allocation of Transaction Price The transaction price, including any discounts, is allocated between separate goods and services in a contract that contains multiple performance obligations based on their relative standalone selling prices. The standalone selling prices are based on the prices at which the Company separately sells each good or service. For items that are not sold separately, the Company estimates the standalone selling prices using available information such as market conditions and internally approved pricing guidelines. In certain situations, primarily transactional SaaS revenue described above, the Company allocates variable consideration to a series of distinct goods or services within a contract. The Company allocates variable payments to one or more, but not all, of the distinct goods or services or to a series of distinct goods or services in a contract when (i) the variable payment relates specifically to the Company’s efforts to transfer the distinct good or service and (ii) the variable payment is for an amount that depicts the amount of consideration to which the Company expects to be entitled in exchange for transferring the promised goods or services to its customer. Contract assets primarily result from when the right to consideration is conditional upon factors other than the passage of time. Contract liabilities primarily relate to advance consideration received from customers (deferred revenue), for which transfer of control occurs, and therefore revenue is recognized, as services are provided. Contract balances are reported in a net contract asset or liability position on a contract-by-contract basis at the end of each reporting period.Contract costs included in other current and non-current assets on the condensed consolidated balance sheetsContract origination costs are amortized based on the transfer of goods or services to which the asset relates, including consideration of the expected customer benefit period. Contract fulfillment costs related to goods or services transferred under a specific anticipated contract have historically been immaterial. These costs are included in selling and marketing expenses in the condensed consolidated statement of operations and comprehensive income (loss)
Fair Value Measurements and Disclosures	The Company uses a three-tier fair value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value: •Level 1: Valuation is based on quoted prices (unadjusted) in active markets for identical assets or liabilities. •Level 2: Valuation is based on observable market-based inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. •Level 3: Valuation is based on significant unobservable inputs which are supported by little or no market activity.
Other Borrowings	Other Borrowings The Company has certain loan agreements with Spanish government agencies. These agreements have repayment periods of five to twelve years and bear no interest.

NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

6 Months Ended

Mar. 31, 2025

Mitek Systems, Inc. (“Mitek,” the “Company,” “we,” “us,” and “our”) is a pioneer in mobile image capture and a global provider of solutions in the fraud prevention, digital identity verification, and cybersecurity markets. Our products address the increasing sophistication of fraud in areas such as new account openings, digital account access, and payments. Utilizing artificial intelligence, computer vision, and proprietary biometrics, our enterprise-grade verification tools protect organizations from escalating check fraud, ongoing account opening fraud, and new cyber threats such as deepfakes and voice clones.

Mitek’s Mobile Check Deposit product is trusted by consumers for its convenience and accuracy verifying checks for deposit, facilitating approximately 1.2 billion transactions annually. This solution powers secure, fast, and convenient deposit services for many organizations, enhancing consumer experience.

We serve over 7,900 financial services organizations, financial technology (“fintech”) brands, telecommunications companies, and marketplace brands globally. Our verification and fraud detection technology is embedded directly within mobile and web applications, providing seamless verification at every touchpoint in the customer lifecycle. By equipping banks, marketplaces, and fintech platforms with these tools, we help reduce the costs associated with fraud, impersonation, Know Your Customer (“KYC”) and anti-money laundering (“AML”) compliance. Additionally, our solutions improve the customer experience, help to ensure regulatory compliance, and lower operational costs.

Basis of Presentation

The accompanying unaudited interim condensed consolidated financial statements of the Company as of and for the three and six months ended March 31, 2025 have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X and, accordingly, they do not include all information and footnote disclosures required by accounting principles generally accepted in the U.S. (“GAAP”). The Company believes the footnotes and other disclosures made in the financial statements are adequate for a fair presentation of the results of the interim periods presented. The financial statements include all adjustments (solely of a normal recurring nature) which are, in the opinion of management, necessary to make the information presented not misleading. These financial statements and the accompanying notes should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2024, filed with the U.S. Securities and Exchange Commission (“SEC”) on December 16, 2024 (the “2024 Annual Report”).

Certain amounts within the prior period’s condensed consolidated balance sheet have been reclassified to conform to the current period presentation. Income tax payables and accrued interest payable were presented separately on the condensed consolidated balance sheet as of September 30, 2024, however, they are included in the other current liabilities line in the consolidated balance sheet as of March 31, 2025. The reclassification, which is considered to be immaterial to the previously issued condensed consolidated financial statements for the corresponding prior period in fiscal 2024, did not change other amounts reported within the condensed consolidated balance sheet, statement of operations and comprehensive income (loss), or statement of stockholders’ equity.

Results for the three and six months ended March 31, 2025, are not necessarily indicative of results for any other interim period or for a full fiscal year.

Principles of Consolidation

The condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of certain assets, liabilities, revenue, expenses, deferred taxes, and related disclosure of contingent assets and liabilities. On an ongoing basis, management reviews its estimates based upon currently available information. Actual results could differ materially from those estimates. These estimates include, but are not limited to, assessing the collectability of accounts receivable, estimation of the value of stock-based compensation awards, fair value of assets and liabilities acquired, impairment of goodwill, useful lives of intangible assets, standalone selling price related to revenue recognition, estimated variable consideration in contracts, contingent consideration, and income taxes.

Recently Adopted Accounting Pronouncements, Change in Significant Accounting Policy and Recently Issued Accounting Pronouncements

Recently Adopted Accounting Pronouncements

The Company did not adopt any new accounting pronouncements in the six months ended March 31, 2025.

Change in Significant Accounting Policy

The Company’s significant accounting policies are disclosed in the Company’s audited condensed consolidated financial statements and related notes thereto included in the Company’s 2024 Annual Report. There have been no changes to these accounting policies through March 31, 2025.

Recently Issued Accounting Pronouncements

In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2024-03, “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses” (“ASU 2024-03”), which requires disaggregation of certain costs in a separate note to

the financial statements, such as the amounts of employee compensation, depreciation and intangible asset amortization, included in each relevant expense caption in annual and interim consolidated financial statements. ASU 2024-03 is effective for annual periods beginning after December 15, 2026 and for interim periods beginning after December 15, 2027 on a retrospective or prospective basis, with early adoption permitted. The Company is evaluating the effect that ASU 2024-03 will have on its financial statement disclosures.

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, amending existing income tax disclosure guidance, primarily requiring more detailed disclosure for income taxes paid and the effective tax rate reconciliation. The ASU is effective for annual reporting periods beginning after December 15, 2024, with early adoption permitted and can be applied on either a prospective or retroactive basis. The Company is currently evaluating the ASU to determine its impact on its income tax disclosures.

In November 2023, the FASB issued ASU No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures” (“ASU 2023-07”), which requires additional operating segment disclosures in annual and interim consolidated financial statements. ASU 2023-07 is effective for annual periods beginning after December 15, 2023 and for interim periods within fiscal years beginning after December 15, 2024 on a retrospective basis, with early adoption permitted. The Company will adopt ASU 2023-07 in the fourth quarter of fiscal 2025 and does not expect the additional required disclosures to have a material impact on its financial statements.

In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, and also issued subsequent amendments to the initial guidance (collectively, Topic 848). Topic 848 provides optional guidance for contract modifications and certain hedging relationships associated with the transition from reference rates that are expected to be discontinued. The Company will adopt Topic 848 when the relevant contracts are modified upon transition to alternative reference rates. The Company does not expect the adoption of Topic 848 will have a material impact on the condensed consolidated financial statements.

No other new accounting pronouncement issued or effective during the six months ended March 31, 2025 had, or is expected to have, a material impact on the Company’s condensed consolidated financial statements.

Revenue Recognition

Nature of Goods and Services

The following is a description of principal activities from which the Company generates its revenue. Contracts with customers are evaluated on a contract-by-contract basis as contracts may include multiple types of goods and services as described below.

Software and Hardware

Software and hardware revenue is generated from on premise software license sales, as well as sales of on premise appliance products. Software is typically sold as a time-based license with a term of one to three years. For software license agreements that are distinct, the Company recognizes software license revenue upon delivery and after evidence of a contract exists. Our standard payment terms are generally no more than 60 days. Invoices for software are typically issued when the license is made available for customer use.

Services and Other

Services and other revenue is generated from the sale of software as a service (“SaaS”) products and services, maintenance associated with the sale of on premise software licenses, and consulting and professional services. The Company’s SaaS offerings give customers the option to be charged upon their incurred usage in arrears (“Pay as You Go”), or commit to a minimum spend over their contracted period, with the ability to purchase additional transactions above the minimum during the contract term. Revenue related to Pay as You Go contracts are generally recognized based on the customer’s actual usage, in the period of usage. For contracts which include a minimum commitment, the Company is stand-ready to provide the services throughout the contract term, and revenue is primarily recognized on a ratable basis over the contract period including an estimate of usage above the minimum commitment. Usage above minimum commitment is estimated by looking at historical usage, expected volume, and other factors to project usage for the remainder of the contract term. The estimated usage-based revenues are constrained to the amount the Company expects to be entitled to receive in exchange for providing access to its platform. Maintenance and support services generally call for the Company to provide software updates and technical support to customers and is recognized ratably over the term of the contract as this is the period the services are delivered. If professional services are deemed to be distinct, revenue is recognized as services are performed. The Company does not view the signing of the contract or the provision of initial setup services as discrete earnings events that are distinct. Our standard payment terms are generally no more than 60 days. SaaS (other than Pay as You Go) and maintenance services are typically invoiced annually in advance, and consulting and professional services are typically invoiced at the time of sale.

Significant Judgments in Application of the Guidance

The Company uses the following methods, inputs, and assumptions in determining amounts of revenue to recognize:

Identification of Performance Obligations

For contracts that contain multiple performance obligations, which include combinations of software licenses, maintenance, and services, the Company accounts for individual goods or services as a separate performance obligation if they are distinct. The good or service is distinct if the good or service is separately identifiable from other items in the arrangement and if a customer can benefit from it on its own or with other resources that are readily available to the customer. If these criteria are not met, the promised goods or services are accounted for as a combined performance obligation.

Determination of Transaction Price

The transaction price is determined based on the consideration to which the Company will be entitled in exchange for transferring products or services to the customer. The Company includes any fixed charges within its contracts as part of the total transaction price. To the extent that variable consideration is not constrained, the Company includes an estimate of the variable amount, as appropriate, within the total transaction price and updates its assumptions over the duration of the contract.

Assessment of Estimates of Variable Consideration

Certain of the Company’s contracts with customers contain some component of variable consideration; however, variable consideration will only be included in the transaction price to the extent it is probable that a significant reversal of revenues recognized will not occur when the uncertainty associated with the variable consideration is resolved. The Company may constrain the estimated transaction price in the event of a high degree of uncertainty as to the final consideration amount owed because of an extended length of time over which the fees may be adjusted or due to uncertainty surrounding collectability. The Company estimates variable consideration in its contracts primarily using the expected value method as the Company believes this method represents the most appropriate estimate for this consideration, based on historical usage trends, the individual contract considerations, and its best judgment at the time.

Allocation of Transaction Price

The transaction price, including any discounts, is allocated between separate goods and services in a contract that contains multiple performance obligations based on their relative standalone selling prices. The standalone selling prices are based on the prices at which the Company separately sells each good or service. For items that are not sold separately, the Company estimates the standalone selling prices using available information such as market conditions and internally approved pricing guidelines. In certain situations, primarily transactional SaaS revenue described above, the Company allocates variable consideration to a series of distinct goods or services within a contract. The Company allocates variable payments to one or more, but not all, of the distinct goods or services or to a series of distinct goods or services in a contract when (i) the variable payment relates specifically to the Company’s efforts to transfer the distinct good or service and (ii) the variable payment is for an amount that depicts the amount of consideration to which the Company expects to be entitled in exchange for transferring the promised goods or services to its customer.

Contract assets primarily result from when the right to consideration is conditional upon factors other than the passage of time. Contract liabilities primarily relate to advance consideration received from customers (deferred revenue), for which transfer of control occurs, and therefore revenue is recognized, as services are provided. Contract balances are reported in a net contract asset or liability position on a contract-by-contract basis at the end of each reporting period.Contract costs included in other current and non-current assets on the condensed consolidated balance sheetsContract origination costs are amortized based on the transfer of goods or services to which the asset relates, including consideration of the expected customer benefit period. Contract fulfillment costs related to goods or services transferred under a specific anticipated contract have historically been immaterial. These costs are included in selling and marketing expenses in the condensed consolidated statement of operations and comprehensive income (loss)

Fair Value Measurements and Disclosures

The Company uses a three-tier fair value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value:

•Level 1: Valuation is based on quoted prices (unadjusted) in active markets for identical assets or liabilities.

•Level 2: Valuation is based on observable market-based inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

•Level 3: Valuation is based on significant unobservable inputs which are supported by little or no market activity.

Other Borrowings

The Company has certain loan agreements with Spanish government agencies. These agreements have repayment periods of five to twelve years and bear no interest.