Purpose of this research is to find empirical evidence about impact of pressure, opportunity, and rationalization (fraud triangle) to the level of accounting irregularities in Indonesia. The samples are taken from non-financial company that was proven to violate BAPEPAM’s rule during 2007-2013. It test all cases of BAPEPAM’s rule violation for the first sample and only financial statement’s violation cases for the second sample. Ordered logistic regression is used to test the hypothesis. This research found that probability of increasing level of accounting irregularities are affected by financial stability and financial target (pressure), nature of industry and ineffective monitoring (opportunity). The probability of increasing level of accounting irregularities are not affected by rationalization. This research found that investor should choose to invest in a company with good financial stability. Investors should be cautious when going to invest in companies that have high financial targets and ineffective internal controls.