Free trial: should you ask for a credit card or not?

Your landing page promises a free trial — the most common CTA in SaaS, and one of the most effective. One decision remains that will shape your entire funnel: the credit card field at signup. Including it means accepting that a large majority of potential signups are lost at the door; omitting it means accepting that most of your "trial users" never arrived with any intention to buy. Both models work, but not for the same companies or at the same stages — and research on free-trial customers sheds precise light on what's at stake.

What the upfront card changes

The "by default" conversion of the card-upfront model deserves to be named for what it is: a status quo effect. Behavioral research has demonstrated the remarkable power of defaults — in decisions far weightier than a software subscription, as Johnson and Goldstein (2003) established in "Do Defaults Save Lives?" (Science), where the mere choice of default setting made organ-donation consent rates vary severalfold between countries. Billing at the deadline unless canceled exploits that same mechanism: it's legal and commonplace, but the line between model and trap is drawn by transparency — a reminder before billing, one-click cancellation, and an unambiguous amount.

What research says about free-trial customers

A reference study published in the Journal of Marketing Research — Datta, Foubert, and van Heerde (2015), "The Challenge of Retaining Customers Acquired with Free Trials" — tracked subscribers of a subscription service by acquisition mode. The results calibrate expectations well: customers recruited through free trials stayed markedly less long than regular customers, with a customer lifetime value 59% lower on average. But the study also reveals their exploitable trait: these customers are far more responsive to marketing actions and to their own usage of the service during and after the trial. Translation: a free trial isn't the end of a funnel, it's the start of an activation sequence — a signup who doesn't use the product during the trial won't convert, card on file or not.

How to decide for your case

• No credit card if your product activates fast (the value shows in one session), if you're in a growth phase where user volume and word of mouth come first, or if your audience (consumers, freelancers) is highly friction-sensitive. It's also the default choice if your activation email sequence is solid — that's what will do the conversion work.
• Credit card upfront if your product requires real setup investment (the trial only makes sense for a serious prospect), if your team onboards every signup (a curious visitor has a real cost), or if your priority is a legible conversion rate and pipeline over flattering volume.
• The middle path — trial without a card, then a card request to extend or unlock advanced features — captures part of both advantages, at the cost of a more complex journey to build.

What your landing page must say, either way

Whatever the model, the landing page must answer the three questions every visitor asks before clicking "Start free trial": is a credit card required (say it explicitly — "no credit card required" is a major conversion argument when true), what happens when the trial ends (automatic billing or a simple stop), and how long it lasts. These notes belong in microcopy directly under the button, not in a distant FAQ — the details are covered in our article on form microcopy. The choice between free trial and freemium itself, which precedes the card question, is covered in free trial or freemium, and the full page structure in our guide to the SaaS landing page.

If you're launching a SaaS offer, LanderKit's SaaS waitlist template provides the optimized signup page — value proposition, proof, minimal form — to plug into whichever trial model you choose, for €89 as a one-time payment.