Hi, An OCI card holder is treated at par with Non Resident Indian or NRI for financial and educational matters. Only few mutual fund houses allow NRIs from US to invest in mutual funds.While investing in mutual funds you need to comply with KYC requirements as well as FATCA Compliance is required.For investment options, you can check our detailed posts for NRIs : http://fintrakk.com/best-investments-for-nri/ and http://fintrakk.com/how-can-nri-invest-in-mutual-funds-in-india-us-canada-other-nris/ For NRIs global income is taxable in India. As far as paying taxes in US is concerned, it is better to check the same with some International taxation expert.