The study examines Procrastination Tendency and its Impact on Academic Performance Among Senior Secondary School Students in Kano State, Nigeria. Two objective, one research questions and 1 hypothesis guide the study. The study employed an ex-post facto research design to investigate the relationships between variables among Senior Secondary School II students in Nassarawa Zonal Education Directorate, Kano State. A sample of 370 respondents was selected using a multi-stage sampling technique from a population of 18,982 students. The study used the Academic Procrastination Scale developed by Steel (2010) to measure academic procrastination, while English academic performance was measured using qualifying examination results. The instrument demonstrated strong internal consistency reliability (Cronbach's alpha = 0.70-0.80) and validity. Data analysis involved descriptive statistics (count and simple percentage) to answer research questions and inferential statistics (t-test for independent samples) to test hypotheses at a 0.05 level of significance using SPSS version 25. The findings of the study revealed that majority of senior secondary school students in the study area were found to have a high level of procrastination tendency. (Low: 112, 30.5%; High: 255, 69.5%). A significant difference exists in academic performance between students with high and low levels of procrastination tendency among respondents. (P-value .000 is < .05). The study recommends that school guidance counsellors should implement regular group counselling sessions that focus on overcoming procrastination through self-regulation techniques, goal-setting exercises, and motivational reinforcement to enhance students’ sense of responsibility and task commitment.