Hiring a new employee triggers a series of legal deadlines that most small business owners don't know about until it's too late. Some forms must be completed on the employee's first day. Others have windows of 3, 20, or 30 days. Miss any of them and you're exposed to fines that start at $272 per form.

This checklist walks through every required document in order of urgency — federal requirements first, then the state-specific additions most commonly missed.

Before Day One

Pre-Employment Documents

Before start date
Written offer letter

Not federally required, but legally valuable. Should state: job title, start date, salary/wage rate, employment type (at-will), and any conditions (background check, etc.). Do not state "permanent" employment.

Background check authorization (if applicable)

If you run background checks, the FCRA requires a separate written disclosure and signed consent before you run the check. It cannot be buried in the application.

Non-disclosure / confidentiality agreement (if applicable)

If you use NDAs, have employees sign before their start date or on Day 1 as a condition of employment. Enforceable only if signed before access to confidential information.

Day One: Time-Sensitive Federal Forms

⚠️ I-9 Deadline: End of Day 3 Form I-9 must be completed no later than the end of the employee's third business day. The employee fills out Section 1 on Day 1. You complete Section 2 after examining their identity documents — but no later than Day 3. Fines start at $272 per form for paperwork violations.

Required on Day 1 (or within 3 days)

Day 1–3
Form I-9: Employment Eligibility Verification

Employee completes Section 1 on Day 1. You complete Section 2 after reviewing original identity documents. Acceptable documents: passport OR driver's license + Social Security card/birth certificate. Keep for 3 years from hire or 1 year after termination.

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Form W-4: Employee's Withholding Certificate

Must be completed before first paycheck. Use the 2020+ version. Employees can update anytime; new forms take effect the next payroll cycle. Keep on file — you don't submit to IRS unless asked.

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State income tax withholding form

Most states have their own equivalent of the W-4. Check your state's revenue department. Some states accept the federal W-4; others require their own form.

Direct deposit authorization (if offering direct deposit)

Your payroll provider will have this form. Get the employee's bank account and routing number. Keep securely — this is sensitive financial data.

Employee handbook acknowledgment

Have the employee sign a statement confirming they received and will read the handbook. This acknowledgment — not the handbook itself — is what protects you legally.

Within 20 Days: New Hire State Reporting

State New Hire Report

Within 20 days
Report new hire to your state's new hire registry

Federal law (PRWORA) requires all employers to report new hires within 20 days of their start date. Most states have an online portal. Information required: employee name, address, SSN, start date, and your EIN. This feeds the national child support enforcement database — it's not optional.

Benefits Enrollment (Time-Sensitive)

Benefits Paperwork

Per your plan documents
Health insurance enrollment (if offering)

New employees typically have 30–60 days from hire to enroll. After that window closes, they must wait for open enrollment. Check your plan documents for the exact window.

401(k) or retirement plan enrollment (if offering)

Auto-enrollment is becoming more common and may be required under SECURE 2.0 for new plans. Provide summary plan descriptions and enrollment forms.

COBRA notice for new employees (if 20+ employees)

Yes — even new hires must receive a COBRA general notice within 90 days of becoming covered under your health plan.

Common State-Specific Requirements

These aren't required everywhere — but they're commonly missed and the fines can be significant:

  • California: Labor Code Section 2810.5 notice (pay rate, payday, employer info) required on Day 1
  • New York: Wage Theft Prevention Act notice with pay rate details required annually
  • Illinois: Written notice of pay rate and pay day required at hire
  • Colorado: Written notice of pay rate, pay schedule, and PTO policy at hire
  • Maryland: Wage payment and sick leave notice required at hire

Check your state's Department of Labor website for the current required notices for new employees.

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