Fare dodging on UK trains refers to traveling without a valid ticket for your entire journey, which is a serious offense that can lead to heavy penalties or criminal prosecution. As of 2026, the standard Penalty Fare is £100 plus the cost of the full single fare for the journey being undertaken. However, if the penalty is paid within 21 days, the amount is usually reduced to £50 plus the fare. Common forms of fare dodging include boarding a train without a ticket when facilities were available to buy one, traveling past the destination on your ticket, using an inappropriate discount (like a railcard you don't possess), or traveling in first class with a standard ticket. Beyond the immediate penalty fare, intentional fare evasion—such as using a fake ticket or "tailgating" through barriers—can result in a court appearance, a criminal record, and fines reaching up to £1,000 under the Regulation of Railways Act 1889. Revenue protection officers use sophisticated handheld scanners to verify digital and paper tickets at all points of the journey.