actually you should not be worried about encash it from the start,
because there're a lot of exchanger that offer you to trade it with other people directly and using escrow system.
in other words,they will not make a report about your earning and other stuff.
it's like peer to peer platform,all that you need to do is find the buyer and then sell it to them directly.
other than that you also can sell it in here '
Currency Exchange'.
find the buyer/seller,hire the escrow and make the transaction.
so,everything will be fine right ?even if every exchanger around the world reporting everything to the goverment,you can sell it off markets which is prevent you being tracked by the goverment.
that's why Cryptocurrency known in the world because of the anonymity.
just don't let them know about your money and your coins,this should be fine.