The Czech Republic operates on the Czech koruna, abbreviated CZK or Kč, with the ISO code CZK. The currency subdivides into 100 haléřů, though halér coins ceased circulation in 2008 and all prices round to the nearest koruna. The Czech National Bank issues banknotes in denominations of 100, 200, 500, 1000, 2000, and 5000 koruny, featuring historical Czech figures including Charles IV on the 100-koruna note and Tomáš Garrigue Masaryk on the 5000-koruna note. Coins circulate in 1, 2, 5, 10, 20, and 50 koruny denominations. The Czech Republic joined the European Union in 2004 but has not adopted the euro. No formal deadline exists for euro adoption, and public referendums conducted since 2004 show consistent opposition ranging from 60 to 80 percent against replacing the koruna. Government statements as of 2023 indicate no euro adoption plans through at least 2030.
ATMs operate throughout Prague, Brno, Ostrava, Plzeň, and all cities exceeding 20,000 residents. In Prague, the density reaches approximately one ATM per 800 residents in the city center, with concentration highest around Wenceslas Square, Old Town Square, and the main railway station Praha hlavní nádraží. Most ATMs accept Visa, Mastercard, Maestro, Cirrus, and Plus network cards. Withdrawal limits typically range from 1000 to 10,000 koruny per transaction, with daily maximums varying by bank from 20,000 to 40,000 koruny. The ATM menu systems offer Czech, English, German, Russian, and occasionally French or Spanish language options. Česká spořitelna, Komerční banka, and ČSOB operate the largest ATM networks, with machines identifiable by their respective blue, green, and blue-red branding. Raiffeisenbank maintains approximately 300 machines nationwide. ATMs inside bank branches typically operate during extended hours from 6:00 to 23:00, while standalone machines function 24 hours except during brief nightly maintenance windows between 2:00 and 3:00.
Exchange offices concentrate in Prague tourist areas at densities reaching one office per 200 meters along routes between Prague Castle and Old Town Square. The Prague 1 district contains over 150 licensed exchange points, identifiable by mandatory Czech National Bank license numbers displayed at the counter. Exchange rates vary substantially between locations. A survey conducted in July 2023 found buy rates for euros ranging from 23.40 CZK to 25.80 CZK per euro, representing a variance of approximately 10 percent over distances of less than 500 meters. The Prague Municipal Authority operates one fixed-rate exchange office at Rytířská 12 in Old Town, using the Czech National Bank daily reference rate minus a flat 2.5 percent commission. This office opens Monday to Friday 8:00 to 19:00. Exchange offices must display all rates and fees in font size no smaller than 15 millimeters under regulations updated in 2017. Banks including Česká spořitelna and Komerční banka exchange currency at published daily rates available on their websites, typically 2 to 3 percent less favorable than interbank rates. Banks do not charge separate commission fees for currency exchange for account holders, but non-customers face fees ranging from 50 to 100 koruny per transaction.
Credit and debit card acceptance reaches approximately 75 percent of businesses in Prague city center, 60 percent in Brno and regional capitals, and 40 percent in towns below 10,000 population according to 2022 Czech Banking Association data. Visa and Mastercard acceptance rates are nearly identical at major retailers and hotels. American Express acceptance remains below 20 percent nationwide, with higher rates at international hotel chains and restaurants in Prague 1 and Prague 2 districts. Diners Club acceptance falls below 5 percent. Contactless payment limits stand at 500 koruny without PIN entry, increased from 400 koruny in 2020. Merchants may require PIN entry for contactless transactions above this threshold. Contactless terminals accept Apple Pay, Google Pay, and Samsung Pay at the same rate as physical contactless cards. Markets including the Havelská Market in Prague and Zelný trh in Brno operate primarily on cash, with card acceptance limited to approximately 20 percent of vendors. Restaurants under 50 seats outside city centers accept cards at rates near 50 percent, while establishments above this size reach 85 percent acceptance. The legal requirement to provide electronic payment options applies only to businesses exceeding 400,000 koruny in monthly revenue, approximately 16,000 euros at 2024 exchange rates.
Dynamic currency conversion appears at approximately 40 percent of payment terminals in Prague tourist districts. This practice allows cardholders to pay in their home currency rather than Czech koruny, with conversion performed by the payment processor rather than the card issuer. Conversion rates applied through this system typically include margins of 4 to 7 percent above interbank rates, compared to 1 to 2 percent margins standard among major card issuers. The terminal presents this option immediately before final authorization, phrased as convenience rather than identifying the cost difference. EU regulations require merchants to display both the koruna amount and converted amount, but do not mandate disclosure of the exchange rate or comparison to alternative rates. Declining dynamic currency conversion and paying in koruny produces lower total costs in approximately 95 percent of transactions based on comparative analysis of major card issuer rates.
Mobile phone coverage through operators O2 Czech Republic, T-Mobile Czech Republic, and Vodafone Czech Republic reaches 99.8 percent population coverage for 4G LTE service according to 2023 data from the Czech Telecommunication Office. Geographic coverage reaches approximately 92 percent of land area, with gaps concentrated in the Šumava National Park, portions of the Bohemian Forest, and sections of the Ore Mountains above 1000 meters elevation. 5G service operates in Prague, Brno, Ostrava, Plzeň, and Liberec, covering approximately 35 percent of the national population as of January 2024. O2 operates the largest network, claiming 7300 base stations nationwide. T-Mobile reports 4800 base stations, while Vodafone operates approximately 4200 stations. Coverage maps published by the Czech Telecommunication Office show O2 maintaining the strongest signal in the Krkonoše National Park and České Švýcarsko National Park, while T-Mobile coverage extends more consistently through the Moravian Karst region.
Prepaid SIM cards are available without identification requirements for purchases up to 150 koruny in value, approximately 6 euros. This anonymous purchase option allows basic voice and text service but prohibits data packages exceeding 1.5 gigabytes under regulations implemented in 2019. Full-feature prepaid SIM cards require passport or EU national ID card presentation and registration in the operator's customer database. Registration completes immediately at point of sale, typically within 3 to 5 minutes. O2 prepaid starter packages begin at 200 koruny including 200 koruny initial credit. T-Mobile starter packages cost 199 koruny with 150 koruny credit. Vodafone charges 249 koruny for packages including 249 koruny credit. These packages include the SIM card and activation, with service beginning within 15 minutes of purchase. Purchase locations include operator retail stores, electronics retailers such as Datart and Alza, and newsstands displaying operator signage. Prague main railway station contains retail locations for all three major operators, open daily 7:00 to 21:00.