Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Can an F1 student working on OPT with a STEM extension earn unrelated self employed income from a foreign employer?
From tax perspective, any income you earn for services performed while you're in the US is US-sourced. The location of the person paying you is of no consequence. From immigration law perspective, you cannot work for anyone other than your employer as listed on your I-20. So freelancing would be in violation of your visa, again - location of the customer is of no consequence.