Banks and Mobile Services in Czechia
Banks and mobile services in Czechia are among the first practical matters to arrange after moving. A Czech bank account is useful for salary payments, rent and direct debits, while a local phone number is often required by employers, banks and public services.
The cheapest account or mobile plan is not always the best choice. Foreign residents should compare identification requirements, fees, currency exchange, app languages, network coverage and contract conditions.
A practical approach is to obtain a Czech SIM card first and then open a bank account, as the bank may use the local number for verification and security notifications.
Opening a bank account in Czechia
Each bank sets its own identification requirements. Foreign customers are commonly asked for a passport, proof of legal residence, a Czech address, a telephone number and information about their tax residence.
The bank may also request a second identity document, employment contract or evidence explaining the source of funds. Online account opening is not available to every foreign resident, so the first account may need to be opened at a branch.
A person legally resident in an EU country may request a basic payment account under EU rules. The bank may still refuse the application where anti-money-laundering requirements are not met or where another equivalent account already exists. The conditions are explained on the official European Union portal.
How to choose a Czech bank
Before signing an agreement, compare more than the monthly account fee. Important points include:
- conditions for free account maintenance;
- cash withdrawal fees in Czechia and abroad;
- charges for foreign and instant transfers;
- exchange rates for CZK, EUR and other currencies;
- availability of multi-currency accounts;
- language options in the app and customer support;
- access to Bank iD for foreign customers.
Use a licensed bank or financial institution. Deposits at participating institutions are generally protected up to the equivalent of EUR 100,000 per customer per institution, including accrued interest. The coverage rules are published by the Czech Financial Market Guarantee System.
Account numbers, IBAN and Bank iD
Domestic Czech payments normally use an account number followed by a four-digit bank code. International transfers use an IBAN, which begins with CZ for accounts held in Czechia. The structure and official calculator are available from the Czech National Bank.
When paying by foreign card or withdrawing cash, select Czech koruna rather than conversion into your home currency. A terminal or ATM may otherwise apply its own exchange rate through dynamic currency conversion.
Bank iD allows customers to sign in to government and commercial services through their online banking credentials. Foreign residents may also receive Bank iD, but eligibility depends on the bank and whether their identity details match Czech public registers. Current participating banks and services are listed on the official Bank iD website.
Choosing mobile service in Czechia
Czechia has three nationwide mobile network operators: O2, T-Mobile and Vodafone. Virtual operators also sell services using these networks.
A prepaid SIM card is convenient immediately after arrival because it does not require a long-term contract. A monthly plan may provide more data or better package pricing, but customers should check the standard price after promotions expire.
Before choosing an operator, compare signal quality at home, at work and along regular travel routes. The official ČTÚ coverage portal displays coverage information for the main networks.
How to compare mobile plans
Do not compare plans only by the number of gigabytes. Check the maximum data speed, EU roaming allowance, international call charges, eSIM availability, automatic package renewals and termination conditions.
The Czech Telecommunication Office comparison tool covers mobile tariffs, prepaid services and fixed internet offers. Before accepting a plan, save the contract summary showing the total price, service speed, duration and cancellation rules.
A discounted phone may also create a separate repayment obligation. Ending the mobile service does not necessarily cancel the remaining device payments.
Keeping your number and using roaming
A Czech mobile number can be transferred to another operator. The customer gives the new provider the subscriber verification code known as OKU. The transfer process normally takes two working days, unless another date is agreed. The procedure is described by the Czech Telecommunication Office.
Roam Like at Home applies within the EU and European Economic Area, although fair-use data limits may apply. Since 1 January 2026, the system has also covered roaming between the EU, Ukraine and Moldova. Current conditions are available from the European Commission.
Protecting your bank account and phone number
Never disclose SMS verification codes, card PINs, online banking passwords or Bank iD confirmations. Do not approve an operation that you did not initiate yourself.
If a phone is lost, immediately block the SIM card and contact the bank to secure mobile banking. Keep recovery methods updated and use different passwords for important accounts.
The best bank and mobile plan depend on actual usage. Compare full costs, digital services, coverage and contract terms instead of choosing solely by an introductory offer.