If you have less than 90 days, there's no issue. If it's over that, you may need to pay a fine the next time you visit immigration for a document. I suggest doing it on time, as any missed report is an opportunity for immigration to scrutinize your visa.
The ask:thailand community, consisting of multiple Q/A groups with over 100,000 members, powers this platform. It is not an official government resource. Our members actively contribute to this resource, and while we strive for accuracy, we cannot guarantee its complete reliability. Assistance to travelers is provided as a community service.