aid: irs name: IRS description: >- The US Internal Revenue Service (IRS) provides REST APIs and Application-to-Application (A2A) interfaces for tax information access, identity verification, income verification, information return filing, and taxpayer account data. Authorized applications can integrate with IRS e-Services for TIN matching, the Transcript Delivery System (TDS), the Income Verification Express Service (IVES), the Information Return Intake System (IRIS) for 1099 series filings, and the Modernized e-File (MeF) system for electronic tax return submission. Access requires enrollment in IRS e-Services and obtaining an API client ID. type: Index image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg url: https://raw.githubusercontent.com/api-evangelist/irs/refs/heads/main/apis.yml created: "2026-06-13" modified: "2026-06-13" specificationVersion: "0.19" tags: - IRS - Tax - Federal Government - TIN Matching - Income Verification - Information Returns - e-File - Identity Verification - Taxpayer apis: - aid: irs:tin-matching name: IRS TIN Matching API description: >- Allows payers to submit Taxpayer Identification Number (TIN) and name combinations to be matched against IRS records before filing information returns. Supports interactive matching of up to 25 combinations with immediate results and bulk matching of up to 100,000 combinations with results within 24 hours. Available as part of IRS e-Services. image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg humanURL: https://www.irs.gov/tax-professionals/taxpayer-identification-number-tin-matching baseURL: https://la.www4.irs.gov tags: - TIN Matching - Taxpayer Identification - Information Returns - Validation properties: - type: Documentation url: https://www.irs.gov/tax-professionals/taxpayer-identification-number-tin-matching - type: GettingStarted url: https://www.irs.gov/tax-professionals/get-an-api-client-id - aid: irs:ives name: IRS Income Verification Express Service (IVES) API description: >- Application-to-Application (A2A) API allowing authorized participants such as lenders, banks, credit unions, and financial institutions to request IRS tax transcripts for income verification purposes. Supports high-volume automated transcript requests with delivery in hours. Charges $4 per transcript requested. Requires IVES participant enrollment and API client ID. image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg humanURL: https://www.irs.gov/individuals/income-verification-express-service-for-participants baseURL: https://la.www4.irs.gov tags: - Income Verification - Tax Transcripts - Mortgage - Lending - Financial Services properties: - type: Documentation url: https://www.irs.gov/individuals/income-verification-express-service-for-participants - type: GettingStarted url: https://www.irs.gov/tax-professionals/get-an-api-client-id - type: Pricing url: plans/irs-plans-pricing.yml - aid: irs:iris name: IRS Information Return Intake System (IRIS) API description: >- Application-to-Application (A2A) API for electronic filing of 1099 series information returns directly with the IRS. Supports high-volume automated submission by software developers and large-scale filers. Specifications are documented in IRS Publication 5718 (IRIS Electronic Filing A2A Specifications). Launched in January 2023 as the successor to the FIRE system. image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg humanURL: https://www.irs.gov/newsroom/irs-opens-free-portal-to-file-information-returns-new-electronic-option-can-reduce-millions-of-paper-forms-1099-estimated-to-be-filed-by-businesses-in-2023 baseURL: https://la.www4.irs.gov tags: - 1099 - Information Returns - e-File - Tax Filing properties: - type: Documentation url: https://www.irs.gov/e-file-providers/information-and-technical-guidance-for-software-developers-and-transmitters - type: GettingStarted url: https://www.irs.gov/tax-professionals/get-an-api-client-id - aid: irs:mef name: IRS Modernized e-File (MeF) API description: >- Application-to-Application (A2A) system enabling authorized software developers and transmitters to electronically submit tax returns directly to the IRS. Supports individual and business tax forms including Form 2290, Form 720, Form 8849, and more. Requires TLS 1.2 or higher. Technical specifications available in IRS Publication 4164. Current WSDL version is R10.9 for tax year 2025/processing year 2026. image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg humanURL: https://www.irs.gov/e-file-providers/information-and-technical-guidance-for-software-developers-and-transmitters baseURL: https://la.www4.irs.gov tags: - e-File - Tax Returns - Electronic Filing - Software Developers properties: - type: Documentation url: https://www.irs.gov/e-file-providers/information-and-technical-guidance-for-software-developers-and-transmitters - type: GettingStarted url: https://www.irs.gov/tax-professionals/get-an-api-client-id - type: StatusPage url: https://www.irs.gov/e-file-providers/modernized-e-file-mef-status - aid: irs:tds name: IRS Transcript Delivery System (TDS) API description: >- e-Services API allowing authorized tax professionals and institutions to retrieve tax transcripts programmatically. Part of the IRS e-Services suite alongside TIN Matching and the Secure Object Repository (SOR). Requires API client ID obtained through IRS e-Services enrollment. image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg humanURL: https://www.irs.gov/tax-professionals/get-an-api-client-id baseURL: https://la.www4.irs.gov tags: - Tax Transcripts - e-Services - Tax Professionals properties: - type: Documentation url: https://www.irs.gov/tax-professionals/get-an-api-client-id - type: GettingStarted url: https://www.irs.gov/tax-professionals/get-an-api-client-id common: - type: Website url: https://www.irs.gov/ - type: Documentation url: https://www.irs.gov/tax-professionals/get-an-api-client-id - type: GettingStarted url: https://www.irs.gov/tax-professionals/get-an-api-client-id - type: DeveloperPortal url: https://www.irs.gov/e-file-providers/information-and-technical-guidance-for-software-developers-and-transmitters - type: StatusPage url: https://www.irs.gov/e-file-providers/modernized-e-file-mef-status - type: Plans url: plans/irs-plans-pricing.yml - type: RateLimits url: rate-limits/irs-rate-limits.yml - type: FinOps url: finops/irs-finops.yml - type: LinkedIn url: https://www.linkedin.com/company/irs - type: X url: https://x.com/irsnews - type: Blog url: https://www.irs.gov/newsroom - type: TermsOfService url: https://www.irs.gov/privacy-disclosure/irs-website-privacy-policy-statement maintainers: - FN: Kin Lane email: kin@apievangelist.com