I believe only coinbase currently requires you to report what you sold. Are there marketplaces where people can exchange bitcoin for USD and not report?
this is why i am not using coinbase again to send or receiving bitcoin and i prefer to use other web wallet. there are localbitcoin that mention by other members and still its the best marketplaces to sell or buy bitcoin with people or seller around you. but if there is any of local market exchange then i think it would be an option for you to sell right away.