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

Pros, cons, and taxation of Per Diem compensation?
Hence new employer pays a part of the salary as per diem compensation   along with regular salary and says that per-diem compensation is   non-taxable. Per-diem is not taxable. But that is not what you're describing. It appears that either you or the prospective employer, misunderstood what per-diem is. As per US law is it legally allowed non taxable per diem compensation   to employees? Yes. What are the pros and cons of having per diem compensation? Per-diem is not compensation. It is not part of your salary. It is not part of your employment contract. If I have to report my salary to any one like banks, insurance   companies, do I need to include Per diem compensation or not? No, because it is not compensation. Back to the first item: Per-diem is paid to you during business trips when you're away from your (tax) home. It is not part of your compensation, and is only allowed for business trips. Contract work on site for any prolonged period of time (1 year or more, as a definitive rule, but can be less) is not a business trip. For that period of time your tax home becomes that location, so you're not away. You're home. You should discuss it with a licensed tax adviser (EA/CPA licensed in your State), but it seems to me that either you misunderstood something, or your prospective employer is trying to evade taxes (both yours and his) by disguising part of your compensation as per-diem. It is very likely that when you get caught, the employer will just issue you 1099 on the amounts and leave you hanging.