Yes, you can use several types of UK Railcards to get discounts on 1st Class fares in 2026, but the rules are specific. The 16-25, 26-30, and Senior Railcards all allow you to get 1/3 off 1st Class Advance tickets (tickets bought ahead of time for a specific train). However, you generally cannot use these Railcards for "Walk-up" 1st Class Anytime or Off-Peak fares. The Disabled Persons Railcard is the most flexible, as it offers the 1/3 discount on almost all 1st Class ticket types at any time. A 2026 "pro-tip" for rail travelers: always check the "First Class Supplement" or use the Seatfrog app; sometimes it is cheaper to buy a standard ticket with a Railcard and then "bid" for an upgrade rather than buying a 1st Class ticket outright. Note that the "Network Railcard" is much more restricted and usually only applies to Standard Class travel within the Southeast area.