Paying for a train in Poland is very flexible in 2026, with several digital and physical options available. For the main national carrier, PKP Intercity, the most common way to pay is through their official website or the "PKP Intercity" mobile app, which allows you to book and pay with a credit card or BLIK (a popular Polish mobile payment system). For local and regional trains (like Polregio or Koleje Mazowieckie), you can buy tickets at the "Kasa" (ticket office) found at all major stations, or at orange/blue ticket machines on the platforms. Many regional trains also allow you to "tap" your contactless bank card on a reader inside the train, similar to a city bus. If you are boarding a train at a small station without a ticket office, you can often buy a ticket from the Conductor for a small surcharge (usually 10–20 PLN), but you must find them immediately upon boarding. For 2026 travelers, using the KOLEO app is highly recommended, as it aggregates almost all Polish train operators into one platform, allowing you to compare prices and pay for your journey in seconds without needing to know which specific company operates the line.