Buying and billing

Billing cycle

Definition

How often a seller actually charges you, which is not always monthly. A 28-day cycle bills 13 times in a calendar year, not 12 — so “$149 a month” on a 28-day cycle costs $1,937 a year rather than $1,788. ⛔ The cycle is usually disclosed in the terms rather than on the price card. It is the single most common way a headline price understates the real one.

What sellers actually charge

GLP Watchdog writes these definitions from FDA labels and peer-reviewed PubMed literature. Not one of them is an AI-generated summary.

Other terms under Buying and billing

Where the evidence lives