<span>As a muslim-majority country, Indonesia has zakat as an instrument that can potentially contribute to poverty alleviation. Managing zakat through institutions (OPZ) has been proven to improve the standard of living of the society. Unfortunately, the current number of zakat collections is far behind the calculated potential. The behavior of people who pay zakat directly (not through amil) and the low level of public literacy about zakat are the main problems to deal with. This study aims to analyze the behavior when paying zakat maal and also analyze the determinants that affect the behavior based on the Theory of Planned Behavior (TPB) approach. The results indicate that most respondents suppose that they have paid zakat maal regularly according to zakat rules with the individual beneficiary is the top priority to where the respondents pay zakat to. The most noticeable and trusted source of zakat information is from recitation sessions/ community/ Muslim forums. The results of PLS-SEM analysis show that knowledge about zakat significantly affects attitude and Perceived Behavioral Control (PBC), but it shows otherwise in the subjective norm. The attitude, subjective norm, and PBC significantly influence the intention of paying zakat maal through OPZ. The intention also significantly affects the behavior of paying zakat maal through OPZ. Meanwhile, the trust toward OPZ affects the behavior of paying zakat maal through OPZ significantly but in the opposite direction. Lastly, no influence is found between religiosity and the behavior of paying zakat maal through OPZ. Several managerial implications are formulated based on the results.</span>