A call to action is the sentence that says exactly what to do next: click the link, order, try it. Why it matters, with examples.
Why a clear CTA is essential
Seven reasons, half of them nothing to do with the sale.
A video with no conclusion lets the viewer return to the feed, which cancels the effort of the previous thirty seconds.
The attention obtained is brief: it is spent immediately or it is lost.
The CTA turns vague interest into a measurable action, the only thing the brand can assess.
It gives the video a clean ending, which also improves retention.
It removes hesitation, which is the real competitor to buying, far more than price.
It structures your script, because writing the ending forces you to know what the opening is about.
And it makes the video reusable, since the brand can drop it into several places without re-editing.
Where to place the CTA
Six positions, with what each produces.
At the very end, the classic spot, which assumes the viewer stayed.
Right after the demonstration, at the precise moment the proof has just been made.
Twice, briefly in the middle and fully at the end, the most effective formula in advertising.
Never in the first five seconds, which have to hold attention, not sell.
As on-screen text during the last three seconds, for viewing without sound.
And never over the voice, on pain of losing both messages at once.
CTA examples by objective
Buy
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Limited offer
The offer ends on Sunday, and the date has to be exact, verifiable and supplied by the brand, never invented by the creator.
Making the CTA natural, not pushy
Start from your experience
The sentence that works extends what you have just lived through on screen. After showing a result, say what you would do in the viewer's place, not what the brand wants them to do.
Keep the tone of the rest of the video
A change of voice is what gives an advert away. If you speak calmly for thirty seconds then speed up at the end, the viewer hears the switch before understanding the words.
Give a reason
A CTA with no reason is an order. A CTA with a reason is advice. The difference comes down to two words: because, or otherwise, or before.
Stay conversational to camera
Look at the lens during the CTA, not at the product. It is the only moment in the video when you address somebody, and it shows.
What breaks a CTA
Six frequent mistakes, beyond the forbidden phrase above.
Stacking two actions, buy and subscribe, so that neither is done.
Speaking too fast, when the ending is the moment to slow down.
Promising a discount or a duration the brand has not confirmed in writing.
Saying today only in a video that will run for six months.
Using vocabulary the category forbids, wording to be checked with a lawyer before the shoot.
And cutting the edit too soon, removing the second of silence that lets the sentence land.
The CTA's place in your script
Five writing markers.
Write the last sentence first, then build the video that makes it legitimate.
Count seven to twelve words, beyond which the sentence dilutes.
Use an action verb at the start, not at the end.
Record two versions of the CTA, one long and one short, which brands appreciate enormously.
And leave one second of picture after the final syllable, so the sentence stays in memory.
Three ways to close, three effects
| The wording | What it asks | When to use it |
|---|---|---|
| A precise action | One clear, single gesture | On a conversion video |
| An open invitation | To look or to compare | In discovery |
| No closing at all | Nothing | When the video tells a story |
What fails most often
Asking for three things at once. A viewer asked to click, share and comment does nothing at all, because none of the three is the priority.
What makes a close effective
That it follows from what was just shown. A demonstration ending on a logical gesture converts better than a sentence added in the edit with no link to the video.
Checking that the CTA works
Five signals to look at after release.
Retention over the last five seconds, which says whether the CTA was heard.
The click rate, to be compared between two versions of the same edit.
The number of questions in the comments, which reveals a misunderstood action.
Behaviour after the click, a good page confirming exactly what the video promised.
And the brand's feedback on conversions, the only measure that really counts for renewal.
One last marker: a good call to action does not try to convince, it removes hesitation. The convincing was done in the previous thirty seconds; the last sentence only says, calmly, what remains to be done.
Sources
- Portal do Empreendedor (MEI), Brazilian government
- Receita Federal, Brazilian tax authority
- Simples Nacional, official portal
Checked on 4 September 2026. Thresholds and rates change: where this guide and the official source disagree, the official source is right.
