# IRS Information Return Intake System (IRIS) API

**Canonical:** https://apis.io/apis/irs/iris/  
**Provider:** IRS — https://apis.io/providers/irs/  
**Base URL:** https://la.www4.irs.gov  
**Documentation:** 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

IRS Information Return Intake System (IRIS) API is one of 5 APIs that [IRS](https://apis.io/providers/irs/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include 1099, Information Returns, E-File, and Tax Filing. The published artifact set on APIs.io includes API documentation and a getting-started guide.

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.

## Machine-readable artifacts (2)

- **Documentation** — https://www.irs.gov/e-file-providers/information-and-technical-guidance-for-software-developers-and-transmitters
- **GettingStarted** — https://www.irs.gov/tax-professionals/get-an-api-client-id

## Other IRS APIs (4)

- [IRS TIN Matching API](https://apis.io/apis/irs/tin-matching/)
- [IRS Income Verification Express Service (IVES) API](https://apis.io/apis/irs/ives/)
- [IRS Modernized e-File (MeF) API](https://apis.io/apis/irs/mef/)
- [IRS Transcript Delivery System (TDS) API](https://apis.io/apis/irs/tds/)

## Tags

1099, Information Returns, E-File, Tax Filing

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/irs/iris/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/irs/.