← Back to Directory
✨
Withfile
Business & Finance
Overview
Withfile helps teams prepare Form 1042-S data for the IRS IRIS Taxpayer Portal by reading Publication 1187 FIRE files or 1042-S spreadsheets, checking chapter 3 and 4 codes, and preparing CSVs in batches of up to 250 forms.
Key Features
- Converts FIRE files or 1042-S spreadsheets to IRIS-ready CSVs
- Validates chapter 3 and 4 withholding codes
- Splits submissions into 250-form batches with control total matching
- No intermediary handling of foreign TINs or dates of birth
Best For
Withholding agents converting Form 1042-S FIRE files to the IRS's new IRIS portal format.
Pros & Cons
Cons
- Users review the output and handle filing themselves; it is not a filing service.
- Addresses the IRS's FIRE-to-IRIS transition for the 2026 Form 1042-S filing season.
Advertisement
Pulse Verdict
Editorial review by SEODataPulse · Editorial rating: 4/5 · Updated
This is an editorial assessment, not an average of customer ratings.
“A browser-based tool that prepares Form 1042-S data for the IRS IRIS Taxpayer Portal from legacy FIRE files or spreadsheets, free to validate and paid to download.”
Pricing
Free on-screen file check. Paid licences for CSV/workbook downloads: Agent $790, Group $1,490, Firm $2,900, one-time annual.
Pricing changes often — confirm current plans on the official site.