Lead ads are Facebook and Instagram ads that collect a person’s details through a form that opens inside the app, so they can enquire without ever loading your website. The form, which Meta calls an Instant Form, normally arrives pre-filled with the name, email address and phone number from the person’s profile.
How lead ads work
You create a campaign with the Leads objective and choose Instant Forms as the place the conversion happens. The ad looks like any other ad. When someone taps the button, the form slides up with an intro screen, the questions, a link to your privacy policy (Meta requires one) and a completion screen where you can offer a next step such as visiting your site or calling you.
You choose between a form built for volume, which submits in a couple of taps, and a higher intent form, which adds a review screen so people confirm their details before sending. You can also add your own questions: multiple choice, short answer, postcode, appointment request.
Submitted leads are stored by Meta. You can download them from Meta Business Suite or Ads Manager, though only for a limited period (90 days at the time of writing, October 2026), or connect a CRM or integration tool so each lead lands with your sales team within seconds.
Why it matters
Lead ads remove most of the friction of enquiring on a phone: no slow page, no typing an email address with your thumb. For service businesses such as boiler installers, tutors, conveyancing firms or home improvement companies, that often produces far more enquiries for the same budget than sending people to a website.
The same ease is the weakness. A form that takes two taps also attracts people who were half-curious, tapped by mistake, or have an old phone number on their profile. The number that looks best in Ads Manager, cost per lead, can fall while the number that matters, the cost per customer, rises.
For a UK business the details also bring data protection duties. Your privacy policy must explain what you do with them, and an enquiry on its own is not permission to send marketing emails or texts, so add a separate, optional consent question if you plan to send them.
Common mistakes
- Choosing the most frictionless form and every pre-filled field, then complaining about lead quality.
- Downloading leads once a week, by which point the person has hired someone else.
- Asking no qualifying questions, so the sales team phones people outside your area or budget.
- Assuming the phone number is right: profile numbers are sometimes years out of date.
- Never telling Meta which leads became customers, so it keeps finding more of the cheap ones.
How to act on it
Start with follow-up, because it decides more than any ad setting. Connect the form to your CRM, or at the very least to an email or text alert, and agree how quickly someone will respond. Add one or two questions that genuinely sort good enquiries from bad: postcode for a local trade, timescale for a home improvement, budget range for a consultancy.
If quality is poor, switch to the higher intent form and see whether the cost per customer improves even as cost per lead rises. Record what happens to each lead, then send those stages back to Meta through the Conversions API. At the time of writing, that lets Meta optimise for leads that convert rather than leads that merely submit.
When I set up Facebook lead ads for UK businesses, the form design and the follow-up process are built before the first pound is spent.