Foreign National investors in the USA with Form 1042S received and 30% tax with held

Zakir is a foreign national and resident of United Arab Emirates with investment in USA under EB5 program on the partnership and few other investments via Charles Schwab, LLC interactive brokers). Zakir was not aware the flat taxes of 30% withheld on the Form 1042S reporting were excess and it was not correct tax rates of withholding.
Our team helped Zakir to obtain the ITIN and also recalculate the correct tax computation and obtain the refund for excess tax withheld on Form 1042S and 1099.