Copywriter screening questions: portfolio ownership, briefs, claims, compliance and AI use

Copywriter screening questions should establish three things: which words in the portfolio the candidate actually wrote, whether they can turn a brief into copy for the right audience and channel without heavy rewriting, and whether they know which claims need proof before they go live. Then ask how they use AI tools, how they take feedback, and how they know a piece worked. A portfolio shows the final draft; the screen is where you hear the decisions behind it.

This page covers brand, direct response, B2B, email and UX writing roles. For the visual side of the same team, see graphic designer screening questions; for the manager who will brief the writer, see marketing manager phone screen questions; and for the full loop, the interview guide for marketing roles.

Which copywriter seat are you filling?

Knockout questions

Portfolio ownership questions

1. "Pick one sample. What was the brief, who was it for, and which words are yours?"
   • Strong answer: the audience, the goal, the channel, who else touched it (creative director, editor, legal), and the lines they wrote.
   • Red flag: "we" throughout, with nothing they can own.
2. "What did your first draft say, and what changed?"
   • Strong answer: remembers rejected headlines and why the final one won.
   • Red flag: "It went out as I wrote it," for every piece.
3. "Was this written as an employee, or as a freelancer for a client?"
   • Strong answer: knows who owns it and whether they may show it. Under the Copyright Act's definition of work made for hire, an employee's work within the scope of the job belongs to the employer, while commissioned work is a work made for hire only in listed categories and with a signed written agreement, so freelancers' rights depend on their contracts.
   • Red flag: unsure whether they are allowed to share the piece at all.

Briefs, research and voice

4. "Walk me through what you do between getting a brief and writing the first line."
   • Strong answer: questions back to the briefer, reading customer reviews or sales call notes, talking to a product expert, a single message they want the reader to take away.
   • Red flag: starts writing straight away and "figures it out in the edit".
5. "Tell me about a brand voice guide you wrote to, and a time you had to bend it."
   • Strong answer: describes the voice in specific terms and a reasoned exception (an apology email, a legal notice).
   • Red flag: every sample sounds the same across very different brands.
6. "What is the worst feedback you received on a draft, and what did you do with it?"
   • Strong answer: separated the useful part from the tone, asked questions, and revised.
   • Red flag: describes reviewers as people who "don't get copy".

Results claims that hold up

Performance writers often quote results. Ask what was measured, against what, and what else changed at the same time. Example with invented numbers: a candidate says a new landing page "doubled conversions". Ask the before and after rates, the traffic, whether it was an A/B test or a before-and-after comparison, and whether the offer, design or audience changed too. "From 2 percent to 4 percent in a split test with the same offer and traffic" is a writing result; "conversions doubled the month we relaunched the site with a new discount" is not.

Claims, compliance and legal review

Copywriters write the claims that get companies in trouble, so ask what they check before a line goes out. The rules below are from the regulators' own pages, as of October 2026:

• Substantiation. The FTC's advertising guide for business says ads must be truthful and not deceptive, advertisers must have evidence before an ad runs, and an advertising agency may also be held responsible for misleading claims.
• Endorsements and reviews. The FTC's Endorsement Guides (16 CFR Part 255, revised in 2023) call for clear disclosure of material connections, and its rule on consumer reviews and testimonials, in effect since October 21, 2024, makes writing or selling fake reviews a violation.
• Email. The FTC's CAN-SPAM guide requires subject lines that reflect the content, identification as an ad, a postal address and a working opt-out honored within 10 business days.
• Financial services. FINRA Rule 2210 requires broker-dealer communications to be fair and balanced, bans promissory or exaggerated claims, and generally needs a registered principal to approve retail communications before use.
• Prescription drugs. The FDA's Office of Prescription Drug Promotion reviews whether promotion is truthful, balanced and accurately communicated.

Ask: "Tell me about a claim legal or compliance cut from your copy. What did you write instead?" Strong candidates describe finding a provable version of the claim. A red flag is a writer who sees review as an obstacle to route around.

AI tools: what to ask

Ask about AI tools directly, because clients' policies on them differ. The US Copyright Office's January 2025 report concluded that AI output is protected only where a human author has determined sufficient expressive elements, and that prompts alone do not make someone the author. That matters for taglines and brand copy a client wants to own. Ask:

• "Where in your process do you use AI tools, and where don't you?" Strong answers are specific: research summaries or headline variations, with their own writing and judgment on the final copy.
• "How do you check facts in anything a tool suggested?" Listen for source checking, not trust.
• "Have you worked under a policy that limited AI use? What did it say?" Shows they follow client rules.

For spotting AI-written samples or tests, see how to verify take-home assignment authorship.

A fair test brief

Keep it short, scoped and unpublishable. Example: "Write three subject lines and the first 100 words of an email announcing a price increase to existing customers of a fictional meal-kit company. Include one sentence on why you chose that angle." Give everyone the same brief and the same time, say how it will be judged, and ask the candidate to talk you through it in the next interview. Our guide to evaluating a take-home assignment has a rubric you can adapt.

How copywriting experience gets overstated

• Edited as written. Pieces they proofread or edited listed as their copy.
• Campaign credit. A famous campaign where they wrote the social posts, presented as the whole campaign.
• Results without a test. Lifts that coincided with a discount, a redesign or a seasonal peak.
• Content volume as copy skill. Long blog posts at high volume, for a role writing short, persuasive copy.
• Tool output as writing. Samples that read fluently but that the candidate cannot explain line by line.

Scoring guide

Legal cautions for copywriter screens

Ask about writing, results and availability, not age ("digital native", graduation year), family or national origin; native-level fluency in a language should be asked only when the job requires it, and then as "Can you write publication-ready copy in [language]?" Ask about pay expectations, not current pay, since many states ban salary history questions. Never ask a candidate to send a former employer's confidential material. This is general information as of October 2026, not legal advice; see illegal interview questions for more.

Interview Signal can sit beside a portfolio review on Zoom, Teams or Meet without a bot joining, keep the ownership and claims questions pinned until you ask them, and write the scorecard from the candidate's own explanations of their work.