Since 08 March 2021, Berliners can be tested for the Corona virus once a week free of charge. According to the Senate Health Administration, 16 test centres are available for the rapid tests throughout the city.

Appointment for SARS-CoV-2 rapid testing
As the Senate Department for Health, Care and Equality announced, it is currently necessary to make an appointment at most test centres. Appointments can be booked at https://test-to-go.berlin/. Without an appointment, only the following test centres can be visited:
- Max Taut OSZ (Fischerstraße 36 in 10317 Berlin)
- Carl-von-Ossietzky-Schule (Blücherstraße 46-47 in 10961 Berlin)
- Kurt-Weiss-Sporthalle (Franzensbader Str. 16 in 14193 Berlin)
- Poststadion Mitte (Lehrter Str. 59 in 10557 Berlin)
I went personally to the old Church of Kaiser-Wilhelm-Gedaechniskirche. Inside the ruin is a test center. As a Berliner you can make a free Schnelltest – if you live outside it is 25 € – or a PCR Test for 49.- €. They send you the result of PCR within max 36 hrs. I got my results after 28 hrs by email. I booked here: https://coronatest.de/?lang=en (You will need your ID!)