This study is set up with the purpose of examining the effects of audit attributes on financial reporting quality of quoted Nigeria non-financial firms. The study also reviewed the moderating effect of external audit quality on the connection between internal audit characteristics and the quality of financial reporting (FRQ). Longitudinal panel research design was used in this study. The population of the study comprises of 112 non-financial firms quoted on the Nigeria Exchange Group (NGX). The study make use of secondary data obtained from 72 listed non-financial firms in Nigeria over the period covering 2013 - 2020. Analysis of the data collected for the study was done using panel regression, correlation analysis and descriptive statistics. The results revealed that AC meetings and AC gender diversity has significant positive impact on the FRQ report while AC independence and AC size have no significant influence. In addition, the study found significant moderating effect of audit report lag on the link between AC meeting and FRQ, as well as on the link between AC gender diversity and FRQ implying that audit report timeliness strengthens the positive and significant impact of AC meetings and gender diversity on FRQ. The study concluded that audit quality attributes are significant in improving the FRQ of the listed non-financial firms in Nigeria. Hence, the study recommends that regulators and decision makers of the firms should ensure higher female representation in the AC. Also, AC of the firms in Nigerian non-financial sector should be encouraged to meet regularly.