How to write Instagram ad copy that converts

Quick Answer

Write Instagram ad copy that converts by leading with a strong hook, focusing on benefits not features, adding social proof, and ending with a single clear CTA. Keep primary text under 125 characters and test three to five copy variations per creative.

Step-by-Step Guide

1. Know your audience

Before writing, answer three questions: who exactly is the reader, what is their pain, and what outcome do they want? Generic copy does not convert.

2. Lead with a hook

The first line is the only line most users read. Use:

A bold claim: "We tripled our sales in 30 days"
A direct question: "Tired of wasting ad budget?"
Pattern interrupt: "Stop scrolling."
Curiosity gap: "The 5-second trick that doubled our CTR"

3. Show the outcome, not the feature

Features tell, benefits sell. Instead of "AI-powered ad creator", write "Write 100 Instagram ads in 5 minutes".

4. Add social proof

Include numbers, quotes, or credentials:

"Used by 4,000+ UK brands"
"4.9 stars on G2"
"Featured in Forbes"

5. Handle the top objection

Preempt the biggest doubt in a single line. For SaaS: "No credit card required". For e-commerce: "Free UK delivery, 30-day returns".

6. End with a clear CTA

One action, one destination. Never mix a signup CTA with a shop CTA. Example: "Start your free trial - takes 2 minutes."

7. Keep it scannable

Primary text: under 125 characters visible before See More
Headline: under 40 characters
Description: under 20 characters
Emojis: 1–2 max, only if on-brand

FAQs

How many copy variations should I test? At least 3 — different angles, not just reworded lines.

Should I use emojis? Sparingly. One at the start or near a CTA is fine.

Can I use pain-agitate-solve frameworks? Yes — pain in line 1, agitation in line 2, solution in line 3.

How long should the primary text be? 25–90 words is the sweet spot for conversions.

Does humour work? Yes, if it fits your brand — but clarity beats cleverness on cold traffic.

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