Spotting Misleading Free Trial Adverts: What UK Advertising Guidance, India’s Dark Patterns Guidelines and the FTC Say to Look For

A trial advert can be accurate and still leave out what matters most: that a payment starts automatically unless you cancel. Regulators in the UK, India and the US describe what clear trial marketing should look like, and what tends to mislead. This guide sets out those descriptions, one jurisdiction at a time, so that a reader can test an advert against them. It is general information, not legal advice, and it says nothing about any specific brand’s current offer, which can only be checked on the advertiser’s own pages.

United Kingdom: what the advertising guidance says

In the UK, non-broadcast adverts are subject to the CAP Code, which the Advertising Standards Authority (ASA) applies. The Committee of Advertising Practice (CAP) publishes advice on the Code. That advice is given by the CAP Executive and does not bind the ASA, but it shows how the rules are read. CAP’s pages note that the Code was amended on 7 April 2025 after the unfair commercial practices provisions of the Digital Markets, Competition and Consumers Act 2024 replaced the earlier Consumer Protection from Unfair Trading Regulations 2008.

The main points for trials are as follows:

• “Free” means free. An advert must not call something free if the consumer has to pay anything beyond the unavoidable cost of responding and collecting, or paying for delivery, of the item. Where delivery is involved, only the genuine, uninflated cost of postage may be charged; packing, handling or administration fees are not allowed. Words such as “complimentary” or “without charge” are treated the same way.
• The commitment must be clear. Adverts must make clear the extent of the commitment needed to get a “free” offer. If the consumer has to open a subscription, that has to be stated.
• Trial adverts should say what happens next. CAP advises that significant information is likely to include whether a paid subscription starts automatically unless cancelled, the financial commitment if the subscription is not cancelled during the trial, and any other significant conditions, such as costs to take part.
• Placement matters. The conditions must be immediately visible and prominent before the consumer chooses to take part. CAP says that stating “T&Cs apply” or “see website for terms” is unlikely to be enough, and that putting terms at the bottom of a long page is unlikely to be acceptable.
• “Free trial” has a defined meaning. Under rule 3.26 the term must not describe “satisfaction or your money back” offers or offers that require a non-refundable purchase.

CAP cites an ASA ruling on online training where the advert did not make clear that the free access was a limited trial, that sign-up created a subscription, or that the full course could not be completed in that time. The ASA treated the omissions as significant.

India: the dark patterns guidelines

In India, the Central Consumer Protection Authority issued the Guidelines for Prevention and Regulation of Dark Patterns, 2023 on 30 November 2023 under the Consumer Protection Act, 2019. They apply to platforms systematically offering goods or services in India, to advertisers and to sellers. Annexure 1 lists specified practices with illustrations. The guidelines state that the illustrations are guidance only, not a binding interpretation, so each case turns on its facts. Practices relevant to trials include:

• Subscription trap: making cancellation impossible, complex or lengthy; hiding the cancellation option; making cancellation instructions ambiguous or confusing; or forcing a user to provide payment details or an auto-debit authorisation to get a free subscription.
• Drip pricing: including advertising a product or service as free without disclosing that continued use requires an in-app purchase. The illustration is a chess app advertised as free that asks for payment after seven days without having said the free period was limited.
• SaaS billing: the illustrations include giving no notification when a free trial converts to paid and silently auto-renewing monthly subscriptions.
• False urgency: falsely stating or implying scarcity or time pressure to prompt an immediate purchase.
• Disguised advertisement: advertisements posed as other content, such as articles or user-generated content.

United States: the FTC’s consumer advice

The US Federal Trade Commission advises consumers to read a trial’s terms before signing up, including how long it lasts and how and when to cancel, and not to sign up if they cannot be found or understood. It warns that “free means free”, so offers that require shipping or other fees deserve caution. It also notes that affiliate marketers are paid per click and some ads may be designed to make people click rather than describe the offer accurately. That caution applies to any page that earns from referrals, including comparison and discovery sites, so independent checking of terms is wise.

A quick test for any trial advert

• Does it say that billing starts automatically, and how much it will be?
• Are the conditions next to the offer, rather than behind a link or at the foot of the page?
• Is any fee, such as handling or delivery, attached to the “free” item?
• Is payment information demanded for a trial that is described as free?
• Does cancelling look harder than signing up?
• Is there pressure to decide immediately?

The free trials FAQ on this site covers the basics of how trials work.

Common questions

Is a money-back guarantee a free trial?

In UK advertising rules, no. The Code does not allow “free trial” to describe satisfaction-or-money-back offers.

The bottom line

UK advertising guidance, India’s dark patterns guidelines and the FTC’s advice agree on the main test: a trial advert should make clear, up front, that a payment may follow, what it will be, and how to stop it. The UK guidance is advice to advertisers on the CAP Code, India’s illustrations are guidance and not binding interpretations, and the FTC material is consumer advice. None of them removes the need to read the actual terms before signing up.

Sources

• Promotional marketing: subscription offers and free trials (asa.org.uk, CAP advice, 20 January 2026)
• Use of “free” (asa.org.uk, CAP advice, 11 December 2025)
• Guidelines for Prevention and Regulation of Dark Patterns, 2023 (Central Consumer Protection Authority, Gazette of India, 30 November 2023) (ccpa.doca.gov.in)
• Getting In and Out of Free Trials, Auto-Renewals, and Negative Option Subscriptions (consumer.ftc.gov)