If you go through NUPOC, here is the salary chart they gave me:
$10,000 signing bonus upon swearing in, plus $2,000 after completion of nuclear prototype training.
E-6 pay while waiting for OCS (to complete college or whatever your case may be). Also included in this is BAH and BAS. For me this totaled a little over $3,000 a month, but it varies depending on where you are located.
After commissioning pay (this includes base pay, sea pay, sub pay, and bonuses):
Rank Years of Service Annual fully taxed equivalent pay (single/married)
Ensign <2 $43,593.03/$45,767.29
LTJG 2 $56,241.29/$59,151.56
LTJG 3 $61,023.42/$62,367.96
LT 4 $74,012.26/$75,516.96
LT 6 $96,744.26/$100,364.61
LCDR 8 $108,335.30/$112,223.19
LCDR 10 $112,856.90/$116,744.79
You will notice a big jump at the 6 year mark. This is because when you sign a continuation contract of 3-5 years at this point, you get a $22,000 yearly continuation bonus.