How to Hire an Independent Contractor: Complete Checklist From Posting to First Payment

Before you search for a contractor, document exactly what you need. Write a clear scope of work (SOW) that includes: specific deliverables with acceptance criteria, timeline with milestones, budget range, required skills and experience, and any tools or systems the contractor will need to interface with. A detailed SOW prevents scope creep and gives candidates enough information to provide accurate quotes.

Before engaging anyone, assess whether the role truly qualifies for contractor status under IRS and state rules. The 3 key questions: (1) Will you control how the work is done, or just what is delivered? (2) Will the worker use their own tools and serve other clients? (3) Is this a project-based engagement with a defined end? If you answer 'yes, I will control the process,' 'no, I will provide the tools,' or 'no, this is ongoing indefinitely,' you may need an employee, not a contractor.

Research market rates for the skills you need. Choose a payment structure: project-based (fixed fee for defined deliverables), hourly (for ongoing or variable-scope work), or retainer (monthly block of hours). Project-based payment is the safest for IRS classification purposes because it focuses on outcomes, not time. Include budget for potential scope changes (10 to 20% contingency is standard).

Source candidates through: professional networks and referrals (highest quality, lowest cost), freelance marketplaces (Upwork, Toptal, Fiverr Pro), industry job boards (We Work Remotely, AngelList, Stack Overflow Jobs), LinkedIn outreach, or professional associations. Evaluate candidates on: portfolio and past work samples, references from similar projects, communication style and responsiveness, understanding of your requirements, and insurance and licensing (especially for regulated industries).

Use a comprehensive contractor agreement covering all 12 essential clauses. Key items to negotiate: payment terms and late payment penalties, IP ownership and pre-existing IP carve-outs, confidentiality scope and survival period, termination provisions and notice period, change order process for scope modifications, and insurance requirements. Both parties should review the agreement carefully. Encourage the contractor to have their own attorney review it.

Collect a completed Form W-9 from US contractors or Form W-8BEN from international contractors before the first payment. The W-9 provides the contractor's Taxpayer Identification Number (SSN or EIN) needed for 1099-NEC filing. Verify the TIN using the IRS TIN matching program. Store the W-9 securely (it contains the contractor's SSN). If the contractor refuses to provide a W-9, you must begin backup withholding at 24%.

Request a certificate of insurance (COI) showing current coverage: general liability ($1M per occurrence minimum), professional liability/E&O ($1M minimum), and workers compensation (if required by state or industry). For construction: verify state contractor license, bonding, and workers comp. For licensed professionals (accountants, lawyers, engineers): verify active license status with the state board. Do not accept self-reported insurance. Require the actual certificate from the insurer.

Provide the contractor with everything they need to start: project brief and SOW (attached to the agreement), access credentials for relevant systems (use least-privilege access), communication channels and primary contact person, brand guidelines and style guides (for creative/marketing work), and any reference materials or documentation. Document all access granted so you can revoke it upon termination.

Establish the invoicing process before the first invoice arrives: confirm the contractor's preferred payment method (ACH, check, wire, PayPal), set up the contractor in your accounting system (QuickBooks, Xero, FreshBooks), define the invoice format requirements (contractor's legal name, invoice number, date, services description, amount, payment terms), and set up payment reminders to ensure you pay within the agreed terms. Late payment creates legal exposure, especially in New York (double damages under the Freelance Isn't Free Act).

Define how and when you will communicate: weekly or bi-weekly check-in meetings (not daily standups, which suggest employment), milestone review points tied to the SOW, an escalation process for issues and blockers, and a change order process for scope modifications. Keep communication focused on deliverables and outcomes, not daily activities. Micromanaging a contractor's process is a behavioral control indicator for the IRS.