How free trials become charges: the conversion, explained

The negative option model

Free trials run on a mechanism regulators call the negative option: the merchant charges you unless you take an action to stop it. You agree to the terms when you sign up, and those terms include a conversion date, a price, and a billing interval. If you do nothing, the charge happens.

The word “free” in marketing does not mean “no card required.” A trial with a card on file is the merchant’s insurance that anyone who stays past the trial is paying. Some services require the card up front; others convert a card already on file from an earlier purchase. Either way, the trial and the card are connected from the start.

What the rules require

The Federal Trade Commission treats undisclosed trial conversions as a deception. A rule the agency finalized in 2024 — the click-to-cancel rule — requires sellers to spell out the terms before you enter your card and to let you cancel about as easily as you signed up. The FTC’s consumer guidance on free trials is direct: know the terms, know the conversion date, and know the price before you hand over a card.

In practice, the disclosure shows up as a line under the sign-up button: “Your trial ends in 7 days, then $14.99/month.” It is not hidden, it is just small. The rules did not make trials cancel themselves — they made the terms harder to miss and the exit easier to find.

What the rules do not do is give you a refund because you forgot. A trial that converts on schedule with disclosed terms is a lawful charge, which is why the standard advice is to decide on the trial before the trial ends.

What the first real charge looks like

When a trial converts, the charge posts at the billing interval you agreed to — usually the day the trial ends, with the merchant billing within a small window around it. The descriptor is the same one the subscription keeps forever after: APPLE.COM/BILL for App Store subscriptions, the streaming service’s own name for Hulu or Disney+, a processor prefix for smaller apps.

The amount is often a surprise even when the date is not. Trial conversions frequently land at the standard monthly price, but annual trials convert to the annual rate and promo trials convert to the full price. If the charge is bigger than the advertised trial price, the plan you converted into is the reason — check the fine print you agreed to rather than the marketing you remembered.

Handling a conversion you did not want

1. Find the conversion date Your trial email and the sign-up page both state when the free period ends and what bills after. If you cannot find it, the merchant is required to tell you.
2. Decide before the date, not after Cancellation is cleanest while the trial is still running. The click-to-cancel rule requires an exit about as easy as the sign-up was.
3. Cancel through the billing source App Store trials cancel in Settings → Subscriptions; merchant-site trials cancel in the account page. A canceled trial should never convert.
4. If you were charged anyway A charge after a canceled trial is an error. Contest it with the merchant first, keep the cancellation confirmation, and escalate to your bank only if needed.