2. The difference between "illegal" and "not illegal" lies in whether illegal gains are obtained by unjust enrichment. For example, the recent online "actor's yin and yang contract" situation. We can look at it in sections: 1), if a "reward" of 60 million yuan is made, although it is outrageous, as long as the contract itself is not illegal, it is a valid contract; 2), but if you pay "personal income tax" with a 6 million contract to pay taxes, it is illegal! !
3. For institutions studying abroad, at least half of the workload is consultation, and on the basis of completing the consultation, we conclude an intermediary service contract with our customers. Since you have substituted your own labor for the labor of the study abroad institution, your income should belong to "legal income"-of course, if it belongs to long-term cooperation, then the study abroad institution should have a "clause" or a "contract" or "cooperation agreement" between you, which is the best.
4. Finally, I would like to remind you that the above-mentioned "study abroad institutions" refer to qualified legal institutions. If the organization itself is not qualified, then their actions are illegal, and if you cooperate with illegal organizations, it is also illegal.
For your reference