This study aims to investigate the measurement instrument of the perception dimension of tax fairness using the Rasch model method. The dimensions of the perception of tax fairness are divided into seven dimensions, namely general fairness, exchange fairness, horizontal fairness, vertical fairness, retributive fairness, policy fairness, and administrative fairness. The sampling technique employed purposive sampling by classifying several criteria for respondents. The distribution of data used Google docs to as many as 122 individuals. The results of this study indicate that the Cronbach alpha value (KR-20) is 0.71. The question item with code PF2 which is included in the personal fairness dimension with a logit value of +0.91 is the most difficult item for respondents to answer. There are three question items that are considered misfit because the logit value of the item is greater than the sum of the mean and standard deviation (1.27). The three items are VF 1 (1.72), RF1 (1.48), and EF2 (1.29). The contributions of this study are: (1) to enrich the literature on tax fairness perceptions by using the Rasch model as a data analysis tool, and (2) empirically, to validate the measurement instrument in the perception of tax fairness dimensions which will be useful for further research.

Abstract Indonesia's transportation sector experienced the worst conditions during the Covid-19 pandemic in 2020. Along with the recovery of economic conditions through the Covid-19 pandemic control policy in 2021, this study was conducted to evaluate the performance of transportation sector companies during the Covid-19 pandemic control period. the. Performance appraisal is carried out according to the cash flow ratio analysis method. Purposive sampling method was determined in determining the selected companies for research. The results show that the cash flow performance of transportation sector companies has increased in terms of liquidity and solvency. On the other hand, the efficiency level has decreased.   Keywords: Cash Flow Performance