Separate from the W-4. Separate from the I-9. Typically due within about 20 days of hire.
Federal law requires employers to report new and rehired employees to the State Directory of New Hires. Many states accept a W-4 plus employer fields; electronic upload is preferred. See ACF new hire reporting.
NewHirePack employee packs already collect the data elements. NHR is a parallel clock on the HR home, not the same as I-9 Section 2.
Solo packs from $7. Lite $12/mo. Standard $25/mo. NewHirePack is signed W-4, I-9 Section 1, state withholding, and in-person Section 2 tracking. It is not E-Verify and not remote I-9 under the DHS alternative procedure.