Startup HR Checklist for Your First Hire (Every Document + Step)

Hiring employee #1 is a bigger legal transition than incorporating. The moment someone accepts your offer, you inherit payroll obligations, employment law exposure, and IP risks that can surface years later in due diligence. This startup HR checklist for your first hire covers what to have in place before day one.

Before You Post the Job

1. Decide: employee or contractor?

The single most consequential choice. Misclassifying an employee as a contractor is one of the most common (and expensive) startup compliance failures. Rough test: if you control how and when they work and they work mainly for you, they're likely an employee.

2. Register as an employer

• US: federal EIN, state employer registration, workers' compensation insurance (mandatory in most states), state unemployment insurance.
• Elsewhere: equivalent employer registrations and mandatory insurance schemes apply — check your jurisdiction before the start date, not after.

3. Set up payroll

Use a payroll provider from day one — manual payroll is a compliance minefield of withholding, remittance, and filing deadlines. Budget the true cost: salary + 10–15% for employer taxes and insurance.

The Document Stack

Every first hire needs these five documents:

1. Offer letter — role, compensation, start date, at-will/notice terms, contingencies (background check, right to work).
2. Employment agreement — duties, confidentiality, termination terms.
3. PIIA (Proprietary Information & Invention Assignment) — the one investors always check. Without IP assignment, the code your first engineer writes may not belong to the company.
4. Equity paperwork — option grant, vesting schedule (standard: 4 years, 1-year cliff), board approval.
5. Employee handbook (lightweight) — even 5 pages: working hours, leave, expenses, conduct, security basics.

Our startup legal documents cost guide breaks down what these cost from a law firm versus AI-assisted generation.

Onboarding Week Checklist

• Payroll enrolled, tax forms collected (W-4/I-9 in the US or local equivalents)
• Equipment issued with a signed asset record
• Access provisioned via a password manager — never shared passwords
• 30/60/90-day expectations written down and discussed
• First-week schedule that includes real work, not just paperwork

The Traps Founders Miss

• Verbal promises. "We'll sort out equity later" is a lawsuit template. Paper everything before the start date.
• Borrowed templates. Employment law is jurisdiction-specific; a Delaware template can be invalid in California or Ontario.
• No termination plan. Decide notice periods and documentation practices while everyone is happy.
• Ignoring remote-work nexus. Hiring across state or country lines can create tax and registration obligations where the employee lives.

Doing This With AI

The document stack and process design are exactly what Founders360's HR Setup Agent generates: offer letters, PIIA frameworks, handbook drafts, and compensation structures tailored to your stage — with the Legal Agent covering the adjacent contracts. Everything shares your company context, so the documents match your actual entity and equity plan. See pricing for tier details. (AI-generated documents are a strong starting draft; have a local employment lawyer review before signing.)

Frequently Asked Questions

What do I legally need before hiring my first employee?

At minimum: employer registration (EIN and state/provincial), workers' compensation insurance, a payroll system that handles withholding, an offer letter, an employment agreement, and an IP assignment agreement.

How much does a first hire really cost?

Plan for salary plus 10–15% in employer taxes and mandatory insurance, plus equipment, tools, and payroll fees. A $80,000 salary typically costs the company $90,000–$95,000 all-in before benefits.

Should my first hire be an employee or a contractor?

If you control how and when they work and they work primarily for you, they should almost certainly be an employee. Misclassification penalties (back taxes, benefits, fines) far exceed the payroll overhead you'd save.

What is a PIIA and why does it matter?

A Proprietary Information and Invention Assignment agreement assigns work-product IP to the company. Investors check for signed PIIAs from every employee during due diligence — a missing one can derail a funding round.

Can AI generate my startup's HR documents?

Yes — AI HR tools can generate offer letters, IP assignment frameworks, and handbook drafts tailored to your context in minutes. Use them as strong drafts and have an employment lawyer in your jurisdiction review before use.