The penalty for the late filing of Form 8582, Passive Activity Loss Limitations, can vary depending on the specific circumstances. As of 2021, if you fail to file Form 8582 by the due date (including any extensions), the penalty can be up to $330 per form. However, the penalty amount may change over time, so it is always advisable to consult the most recent tax regulations or consult with a tax professional for accurate and up-to-date information.