Why It Matters
Your entire email exists to get someone to click that CTA. Everything else — subject line, copy, design — is in service of that one action. Emails with a single, clear CTA generate 371% more clicks than those with multiple competing asks, according to WordStream data. When you give people too many choices, they choose none.
How It Works
A good CTA has three elements: clear copy that states the benefit ("Get My Free Trial" beats "Submit"), visual contrast that makes it impossible to miss, and placement that catches the reader at the right moment. Most email designers place the primary CTA above the fold and repeat it at the bottom for longer emails.
Button CTAs consistently outperform text links because they're easier to tap on mobile — and over 60% of emails are opened on mobile devices.
Quick Tips
- Use action-oriented, first-person copy: "Start My Trial" instead of "Start Your Trial." It sounds small, but tests show first-person converts better.
- Make your button at least 44x44 pixels for mobile tappability. Apple's Human Interface Guidelines recommend this as the minimum touch target.
- Stick to one primary CTA per email. Secondary links are fine in the footer, but the main body should drive one action.
- A/B test your CTA color, copy, and placement — these are high-impact, low-effort tests.