One of the main challenges in under the table part-time work is a lack of formal job security, with hours and pay sometimes fluctuating based on the employer's needs. Because these roles are often informal, you may not receive standard workplace protections or benefits such as health insurance, paid leave, or unemployment compensation. Building a steady income can be more difficult, and it can be harder to prove your work experience for future employment opportunities. However, many people find these jobs offer flexible scheduling, quick pay, and valuable experience in various industries, especially if you are reliable and able to adapt to different work environments.