All foreigners whose residence permit expired during the state of emergency may stay in the Czech Republic for additional 60 days after the end of the state of emergency (17th of May 2020). This applies both to those who require a visa and those who are visa-free. Expired Schengen visa and visa-free stay does not need to be extended. Instead a so-called “exit stamp” will be issued at the time of departure. When exit stamp is issued a foreigner must leave the country within 24 hours.
More information can be found on the MOFA website.

Protective measure againts Covid-19, Update November 9, 2020:

• Protective measure against SARS-CoV-2 from November 9th 2020 (pdf; 142 kB)​

Contitons for entry to the Czech Republic after November 9, 2020:

• Conditions for entry of persons to the Czech territory valid from November 9th 2020 (pdf; 193 kB)
• More information on condition for entry on Ministry of Foreign Affairs of the Czech Republic

List of Countries according to the level of Covid-19 risk:

• https://koronavirus.mzcr.cz/en/list-of-countries-according-to-the-level-of-risk/

Visits to  Ministry of the Interior (Department for Asylum and Migration Policy) offices with effect from October 22^nd, 2020 by appointment only
Details: https://www.mvcr.cz/docDetail.aspx?docid=22261607&doctype=ART

• Notice for Limited Service of MOI Office in Time of Emergency State (pdf; 484 kB)

Work permits which expired after March 12, 2020 remain valid until November 16, 2020 as long as the employment contract is extended for the same period of time. This applies to holders of following visa types:

• Short term schengen visa for purpose of work
• Short term visa for purpose of seasonal employment
• Long term visa for purpose of seasonal employment
• Special work visa

All above mentioned foreigners must leave the country by November 16, 2020
 

More information https://www.mvcr.cz/docDetail.aspx?docid=22261607&doctype=ART