Therapeutic Alliance Questionnaire 36-2 for Group (TAQ 36-2 Group) is a self-rated tool to measure therapeutic alliance in group psychotherapy. Confirmatory factor analysis demonstrated the four-factor structure of the TAQ 36-2 Group. The internal consistency for the scales ranged from .71 to .92. Most test-retest reliability values were above 0.6 or 0.7. An electronic copy of the English and Polish versions of the TAQ 36-2 Group is provided free of charge on the Department’s website: https://psychoterapia.wl.cm.uj.edu.pl/pl/katedra/dzialalnosc-naukowa/narzedzia-badawcze/ . The questionnaire may also be obtained from the first author.