This study aims to determine the differences in company financial performance before and during the Covid-19 pandemic to help stakeholders better understand the company's financial condition during the Covid-19 pandemic. The population in this study are all companies listed on the Indonesia Stock Exchange in 2018-2021. This population includes companies with financial report data for 2018-2021, divided into nine sectors. In this study, the hypothesis testing method was determined based on the results of the data normality test. For the first to fourth hypotheses, different test hypotheses will be tested using parametric, namely the Paired Sample T-Test if the data is normally distributed, and using a non-parametric test, namely the Wilcoxon Signed Rank Test if the data is not normally distributed. This study's results indicate significant differences in the company's financial performance, measured using the debt-to-equity ratio, return on assets, earnings per share, and net profit margin in the period before and during the Covid-19 pandemic.