1st year Envoy FO here. After taxes, insurance, etc. (single, no kids) I bring home about $2600 a month in the bank including per diem. Lineholder, no open time pickup. Quarterly retention bonus just hit today, $1715 in the bank, new-hire bonus was about 10.1k after taxes (15k before). Tax rebate from 2016 also just hit, $2850 in the bank (no mortgage, just standard deduction and student loan interest). Hardly consider myself rich, or even close to it, but I get by just fine. Light years ahead of where I started in Part 121 8 years ago.