How CZK exchanging actually works
Wise executes EUR/CZK conversions at the mid-market rate with a transparent transaction fee — that's the comparison baseline. Revolut and Bunq offer free FX within monthly tier-specific allowances on EUR/CZK, then apply a 0.5–1% spread above. Trade Republic doesn't offer manual FX but settles CZK-denominated trades at competitive rates. For one-off exchanges above the free allowance, compare the all-in cost (rate + fee) across providers before executing.
Watchouts and hidden costs
Weekend FX surcharges of 1% on Revolut Standard. Some neobanks present an attractive 'free conversion' headline that excludes the FX spread baked into the quoted rate — verify against the mid-market on a reference source. For CZK exchanges above €100,000 (CZK equivalent), verify Garanční systém finančního trhu coverage at the destination institution.