u/AdAdditional4660

As in the title, is it possible / legal to e-file IRS documents for other companies?

Basically, they would send us the data / the document, and we'd e-file for them.

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In short, this is step two for the company idea I have... and I want to see if this is even legally possible... Also curious, if a company requesting a e-file through us, are we liable for their incorrect information or is the company that requested it from us liable?

I'd appreciate the advice on this, thanks!