In 2026, the "Penalty Fare" for traveling without a valid ticket on UK trains is £100 plus the price of the full single fare for your journey. However, if paid within 21 days, the penalty is reduced to £50 plus the fare. It is important to note that this is the "administrative" penalty for honest mistakes or missing tickets. If the rail operator (like GWR or Avanti) suspects intentional fare evasion, they can bypass the penalty fare and prosecute you under the Regulation of Railways Act 1889. If convicted in court, the fine can rise to £1,000, and you will receive a criminal record, which can impact future employment and travel. In 2026, ticket inspectors are equipped with body cams and digital scanners that can detect "screenshot" fraud or expired digital railcards instantly, making evasion much riskier than in previous years.