The Pengab index, which measures banking sentiment in the country, went down by 11.1 points to 13.3 in September, the Polish Bank Association (ZBP) and market researcher Kantar TNS have said in a joint report.
The fall in the index reflected a decrease in customer activity on the Polish market for banking services, according to the report.
Krzysztof Pietraszkiewicz, the head of the Polish Bank Association, was quoted as saying that bankers were pessimistic about market indicators including household deposits and corporate loans last month.
The study was carried out from September 8 to 28, surveying 92 bank outlets nationwide, state news agency PAP reported.
In August, Polish banking sentiment improved markedly, reaching its highest level since October 2019, amid reduced concerns over the coronavirus and its impact on the economy.
In April last year, banking sentiment in Poland tumbled to its lowest level on record during the coronavirus pandemic.