This study aims to measure the compliance of accounting practices with accounting standards for Property, Plant, and Equipment. To obtain the compliance index we carry out a questionnaire to non-financial Portuguese firms for the years 2021 and 2022. We find a compliance mean index of 54% from the 282 observations. In addition, we analyze whether size and debt affect this compliance. The empirical evidence shows that the size of the firm is the most significant factor with a positive impact on compliance, while debt tends not to be significantly associated. Therefore, size tends to enhance the quality of financial reporting, then reducing the asymmetry of information between internal and external stakeholders. This study provides useful insights because poor compliance may lead to less stakeholders’ confidence and reduce the efficiency of capital allocation.