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PerfrowFormatting tool, not tax advice

Terms

Perfrow is an information tool, not tax, legal or professional advice.

What the tool does

It reformats a list you provide onto a CSV template you provide, following the IRS formatting documents named on this site, and reports what it changed. It does not decide who must receive a form, what amounts are reportable, or whether a TIN is correct.

What it cannot promise

  • That the IRIS portal will accept a file. The portal has no test mode, templates and rules change by tax year, and the checks here follow the newest published guidelines (tax year 2025, checked 2026-11-10).
  • That every automatic fix is what you want. Each change and assumption is listed in the report so you can check it against your W-9s before you upload.

Your part

You are responsible for the accuracy and timeliness of what you file and for reviewing the output. If something matters, check it with the IRS instructions or a tax professional.

Price and refunds

The tool is free during launch. Later, lists over 10 rows will need a $19 one-time season pass. If you paid for a pass and the portal rejects a file the tool marked ready, for a formatting reason, request a refund from your receipt and it will be given.

No warranty

The tool is provided as is, without warranties of any kind. To the extent the law allows, liability is limited to the amount you paid for the pass.

Names

Perfrow is not affiliated with, endorsed by or connected to the Internal Revenue Service, Intuit or any other company named on this site. IRIS, FIRE and form names are used only to describe what the tool works with.

Last updated 2026-11-10.