I want to take on a second job, because I need it the income. Is it okay to take a second job without telling my boss?
Is it okay to take a second job without telling my boss?
This depends on your employment contract.
In my personal experience, when I worked a very large software company, I was required to sign an employment contract that I would not take a job performing similar work to my current job. Since I was a software engineer, I could not take on a job writing code, for instance. But I took on a teaching side gig which I argued was completely unrelated to my current job and thus not required to disclose it to my employer. Your mileage may vary.
Be sure check your employment contract and if in doubt consult a lawyer.