I hated the time jump without knowing exactly what happened. I presume they ran off or gave up the assasination attempt after seeing whatshisname's head on a stick and then ended up as rock bottom street dealers having their business destroyed by the mayor.
The jump in time from when the mayor closes Charlie's businesses, to him & Frankie being virtually destitute was huge. One minute they're snorting mountains of cocaine & throwing wads of cash around, the next they're robbing street dealers & stealing handbags. The last third of the film was the best part though imo.
'6 months later' appears on screen I think.l the authorities have taken and sealed off their homes etc and they sell all their remaining assets to buy coke. What mlittle money they make/have after that goes on supporting their big/v expensive drugs habits until they're destitute and desperate.