# IRIS CSV

> Browser-based checker and auto-fixer for IRS IRIS Taxpayer Portal CSV files (1099-NEC, 1099-MISC and all 36 IRIS CSV forms, tax year 2025 rules). Splits files over the 250-record limit, converts spreadsheets to the IRIS template, and runs entirely client-side so TINs never leave the device. Free for up to 10 records; Pro is a $29 one-time lifetime license. Available in English and Spanish. Not affiliated with the IRS.

Key facts (from IRS sources): FIRE accepts its last filings Nov 19, 2026 (3 p.m. ET); IRIS is the only IRS information-return e-file system from Jan 1, 2027. IRIS portal CSVs hold max 250 records, one form type and one tax year per file; max 100 forms per submission (IRS Pub 5717). The 1099-NEC threshold is $2,000 for payments made in 2026 ($600 before).

## Tool
- [IRIS CSV checker (EN)](https://iriscsv.fyi/): drop a CSV or XLSX, get errors, fixes and an IRIS-ready file
- [Validador IRIS CSV (ES)](https://iriscsv.fyi/es/)

## Guides
- [FIRE is shutting down. Here's how to move your 1099s to IRIS](https://iriscsv.fyi/guides/fire-to-iris/): FIRE accepts its last files on November 19, 2026. From January 1, 2027, IRIS is the only IRS e-file system for 1099s. Dates, TCC steps and the free CSV upload option.
- [Why IRIS rejects your CSV, and how to fix each error](https://iriscsv.fyi/guides/iris-csv-upload-errors/): The IRIS Taxpayer Portal rejects CSVs for scientific notation, ZIP codes, line breaks, extra spaces, periods and #, $0.00 and empty checkboxes. Each cause, with the fix.
- [The 1099-NEC IRIS CSV template, column by column](https://iriscsv.fyi/guides/1099-nec-iris-csv-template/): What goes in each column of the IRS IRIS 1099-NEC CSV template for tax year 2025: required fields, formats, character limits, Box 1/Box 2 rules and state fields.
- [The 1099-NEC threshold is now $2,000. Here's which forms it applies to](https://iriscsv.fyi/guides/1099-nec-threshold-2026/): For payments made in 2026, the 1099-NEC reporting threshold is $2,000, up from $600. The forms due February 1, 2027 use it; 2025 payments still use $600.
- [IRIS CSV limits: 250 records per file, 100 forms per submission](https://iriscsv.fyi/guides/iris-csv-limits/): The IRIS Taxpayer Portal accepts up to 250 records per CSV (header excluded), one form type and tax year per file, and 100 forms per submission. How to split large files.
- [Cómo presentar tus 1099 en IRIS ahora que cierra FIRE](https://iriscsv.fyi/es/guias/como-presentar-1099-en-iris/): FIRE recibe sus últimos archivos el 19 de noviembre de 2026 y desde el 1 de enero de 2027 IRIS es el único sistema del IRS. Fechas, TCC y cómo usar la carga de CSV gratis.
- [Por qué IRIS rechaza tu CSV y cómo corregir cada error](https://iriscsv.fyi/es/guias/errores-csv-iris/): El portal IRIS rechaza CSV por notación científica, ZIP sin ceros, saltos de línea, espacios, puntos y #, montos en $0.00 y casillas vacías. Cada causa con su solución.

## Legal
- [Privacy](https://iriscsv.fyi/privacy/)
- [Terms](https://iriscsv.fyi/terms/)