Free IRS file converter Tax Year 2026

FIRE to IRIS Converter

Convert IRS FIRE files and Publication 1220 fixed-width 1099 data to downloadable TY2026 IRIS XML, privately in your browser.

Trying to convert to CSV instead? Use the FIRE to CSV converter.

  • 18 supported 1099 FIRE form types
  • Complete TY2026 IRIS format check
  • Private, browser-only conversion
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Important

Review every result before filing

This free tool provides an automated conversion and format check only. It does not verify the accuracy, correctness, completeness, or legal sufficiency of tax data, and it does not guarantee IRS acceptance. You are responsible for reviewing the source data, XML, and filing outcome.

To the fullest extent permitted by law, HamSys, Inc. and BoomTax are not responsible for errors, omissions, rejected filings, penalties, or losses arising from use of this tool.

Use of this tool is subject to the site terms.

Publication 1220 to IRIS XML

A FIRE file converter built for real 1099 batches

18 FIRE form types

Convert TY2026 Forms 1099-A, B, C, CAP, DIV, G, INT, K, LS, MISC, NEC, OID, PATR, Q, R, S, SA, and SB.

Complex files supported

Process multiple payers, mixed form types, CF/SF state groups, K records, and state and local withholding in one file.

Readable XML results

Review pretty-printed XML in a scrollable window, copy the complete XML, or download it after the TY2026 format check passes.

How it works

Convert a FIRE file to IRIS XML in three steps

  1. 1
    Add your FIRE data

    Upload a .txt, .fire, .dat, or plain-text .asc file, or paste complete 750-character records.

  2. 2
    Convert locally

    Parse Publication 1220 records and build the matching IRIS XML on this device.

  3. 3
    Review and download

    Check the result against the complete TY2026 IRIS file format, then preview or download the XML.

Need to transmit the returns?

Turn the converted data into a completed IRS filing

An XML file is one part of the IRIS filing workflow. Direct transmission also uses an IRIS A2A TCC, approved access, authentication, submission tracking, and IRS acknowledgments. BoomTax can import the FIRE data, help resolve validation issues, transmit the returns, and provide filing status in one workflow.

Get help filing with BoomTax

Common questions

FIRE to IRIS converter FAQ

Can I convert an IRS FIRE file to IRIS XML online?

Yes. This browser-based FIRE to IRIS converter reads 2026 tax data in the legacy TY2025 Publication 1220 layout, maps their fixed-width 1099 records to IRIS XML, checks the generated file against the TY2026 IRIS format, and enables a local download.

Does the converter upload my tax data?

No. Parsing, XML generation, and format checking run in your browser. The converter does not send the FIRE file, generated XML, filename, TINs, names, addresses, or amounts to FireToIris.com or BoomTax.

Which FIRE form types are supported?

The TY2026 converter supports original domestic returns for Forms 1099-A, 1099-B, 1099-C, 1099-CAP, 1099-DIV, 1099-G, 1099-INT, 1099-K, 1099-LS, 1099-MISC, 1099-NEC, 1099-OID, 1099-PATR, 1099-Q, 1099-R, 1099-S, 1099-SA, and 1099-SB, plus valid CF/SF coding and reconciled K records for eligible forms. New TY2026 fields absent from FIRE require review: 1099-NEC tips and overtime, the 1099-S cash and digital-asset breakdown, and the required 1099-R Trump-account indicator (0 is a preview placeholder).

Is the downloaded XML already filed with the IRS?

No. The download is an IRIS XML file for review and use in a filing workflow. Filing is a separate transmission process with credentials, authentication, acknowledgments, and acceptance checks.

Can I validate IRIS XML that I already have?

Yes. Use BoomTax's free IRS IRIS XML validator to check an existing TY2026 XML file in your browser.

Contact support

Practical guides

Work through a specific task with examples, visual workflows, editable worksheets, and official sources.

  1. Can You Upload a FIRE File to IRIS? CSV, XML and the Next Step

    Choose the right IRIS output for your FIRE data. Compare portal CSV and A2A XML, reconcile a sample batch, and download a pre-filing handoff checklist.

  2. Converting a FIRE File with Multiple Payers

    Keep payer identities, form groups, and totals aligned when converting a multi-payer FIRE file. Includes a worked reconciliation and downloadable worksheet.

  3. FIRE File Preflight Checklist Before Conversion

    Check record structure, tax year, payer groups, and control totals before converting a FIRE file. Includes a fictional batch review and downloadable checklist.

  4. FIRE to IRIS Field Mapping: Trace a Sample Record

    Trace fictional 1099-NEC amounts from fixed-width FIRE positions through parsed cents to XML elements, with a reusable mapping review worksheet.

  5. How to Read IRIS XML Validation Errors After Conversion

    Separate source, XML, schema, and IRS filing errors. Trace a fictional validation report back to the FIRE record and use a downloadable issue worksheet.

Browse the guide library