Contractor Vetting Checklist: Red Flags and Green Flags

Before hiring a contractor, verify the qualifications the work requires, inspect a relevant example, and agree on scope, payment, and handoff. Use the checklist below to record the evidence and resolve important gaps before committing.

This checklist is for businesses hiring independent professional services such as design, development, bookkeeping, or consulting. Regulated trades and professions may have additional local requirements. Mark each item as verified, unresolved, or not applicable, and keep a short note identifying the evidence and date.

1. Confirm identity and relevant credentials

• The proposal and contract identify the person or business providing the service.
• Claimed licenses are checked with the relevant regulator when the work requires them.
• The license covers the proposed activity and jurisdiction.
• Claimed certifications have been checked through the issuing organization or another appropriate official process.
• Any discrepancy in names, status, or scope has been resolved before contracting.

The Small Business Administration’s licensing guidance explains that requirements vary by activity and location. Identify the regulator for any licensed work in your assignment, then verify the credential and permitted scope.

For a claimed CPA credential, NASBA identifies CPAverify as a lookup using official accountancy-board data. Confirm the relevant jurisdiction and current status with the board where necessary. A software badge, association membership, and professional license establish different things.

A credential discrepancy warrants investigation. If a candidate knowingly misrepresents a qualification essential to your project, that is a substantive reason to stop. If a registry record is incomplete or a name has changed, resolve the facts rather than inferring misconduct immediately.

2. Match insurance and access requirements to the assignment

• The work’s material risks have been identified.
• Required coverage, if any, is specified by type, scope, and limit.
• Coverage evidence is current and identifies the correct insured party.
• Questions about exclusions or applicable work are checked with a qualified insurance professional.
• System and data access is limited to what the agreed work requires.

The SBA distinguishes general liability coverage, which addresses risks such as bodily injury and property damage, from professional liability coverage for errors, negligence, or malpractice in services. Neither label means every possible loss is covered.

Match coverage to the assignment with advice from your insurer or counsel. A photographer on your premises and a developer handling sensitive records present different risks. Ask about covered activities, exclusions, limits, and the insured party before accepting the evidence.

3. Inspect relevant work and clarify the candidate’s role

• At least one relevant example has been discussed in enough depth to understand the work.
• The candidate distinguishes their own contribution from teammates’ contributions.
• Reported outcomes include context and limitations.
• Confidential work is handled through authorized examples, anonymized material, or another agreed demonstration.
• Important skills missing from the evidence have a plan for evaluation.

Ask how the project began, which constraint was hardest, what decisions the candidate made, and what they would change now. For a developer, inspect an authorized code sample or demonstration. For a bookkeeper, request an anonymized reconciliation or report explanation. For a designer, follow a customer task through the layout.

A business result such as increased sales can have several causes. Ask how the candidate measured it and what else changed. Our portfolio guide provides more detailed evaluation questions.

4. Check references without turning them into a popularity test

• The candidate has permission to share the reference’s contact details.
• The reference’s relationship to the candidate is clear.
• Questions cover a project relevant to yours.
• Scope changes, delays, and problem handling are discussed in context.
• Important unanswered questions are recorded rather than replaced with assumptions.

Suggested questions are: what work did the professional own, how did you agree on acceptance, what happened when requirements changed, and what should a future client do to work effectively with them? Ask whether the reference would hire the person for a similar assignment and why.

Use a contact channel appropriate to the reference. A written answer can provide useful evidence; a video call is not mandatory for every project. New independent professionals may have references from employment or collaborative work rather than previous freelance clients. Evaluate what those references can actually establish.

5. Agree on communication and availability

• Working hours and essential meeting times are understood.
• The candidate knows who can answer questions and approve changes.
• Routine updates and urgent escalation use agreed channels.
• The proposal addresses the brief’s important requirements.
• Unavailable periods and backup arrangements are discussed where relevant.

Agree on response times around the work. Next-business-day replies can suit an asynchronous assignment; live support needs a defined coverage window. Confirm holidays and absences before scheduling critical reviews.

Look for clear explanations, candid limits, and questions that change the proposed solution. If a response is vague, ask for a concrete example before deciding whether the issue is communication style or an actual gap in understanding.

6. Review the commercial terms

• Deliverables, exclusions, inputs, and acceptance criteria are written down.
• Price, taxes or fees, payment timing, and change approval are clear.
• Revisions and support are defined.
• Ownership or permitted use of deliverables and third-party assets is addressed.
• Termination, completed-work payment, and handoff are covered.

For a fixed-price platform order, distinguish advance funding from release to the professional. Check the funding mechanism, review deadline, cancellation terms, and exposure at each stage. Put review dates in the project calendar.

Likewise, a low bid may reflect a narrower scope, available capacity, or a different business model. Ask why it differs. Refusal to explain what is included is more informative than the price alone. Our contract and NDA guide provides a worksheet for clarifying the agreement.

7. Use a paid pilot when it resolves a real uncertainty

• The pilot evaluates a skill that remains uncertain.
• Scope, payment, deadline, and permitted tools are agreed in advance.
• Production data and credentials are not unnecessarily exposed.
• Acceptance criteria fit the bounded task.
• Findings are discussed before expanding the engagement.

Choose a pilot such as one reconciled sample period, a representative layout, or a small bug fix. Agree on the deliverable, effort limit, fee, and rights before work starts. Pay for the bounded assignment you commission.

After the pilot, review the output, explanation, and working process against the criteria. Record any remaining questions about coordination or ongoing coverage before expanding the engagement.

Separate reasons to stop from questions to resolve

Observation	Useful response
Demonstrably false claim of a required license	Stop and preserve the evidence
Request to misrepresent work, records, or reviews	Decline that request and reconsider the engagement
Proposal omits an essential deliverable	Obtain a written scope clarification
Portfolio cannot be shared publicly	Request an authorized alternative
Quote differs substantially from others	Compare scope, assumptions, and exclusions
Availability conflicts with required coverage	Resolve the schedule or choose another candidate

Resolve essential legal requirements and capabilities before hiring. Use optional preferences to compare otherwise suitable candidates. Keep the final decision note short: why the person fits, which evidence supports the choice, and what the agreement requires.

Sources

• SBA: Launch your business — licensing and insurance sections
• NASBA: Official accountancy-board data and CPAverify