On 6 January 2022, the Ministry of Finance issued a financial bulletin containing a new Instruction D-54 of the General Financial Directorate with uniform exchange rates for the conversion of foreign currencies for the taxable period of 2021 (see article 38 of Act No. 586/1992 Coll., on Income Taxes). 

Some of the most used courses include the following:

• CZK 25.65/ EUR,
• CZK 21.72/ USD,
• CZK 5.61/ PLN,
• CZK 29.88/ GBP.

The full text of the GFD Guidance can be found here.