I am about halfway through a 3 month summer internship in Bellevue, WA. My pre-tax bi-monthly paychecks are ~$3000 (6k/mo). However, I pay ~$815 in taxes each paycheck. This comes to about 27% in taxes, which makes sense since I am being paid hourly what would equate to about 80k/yr salary. However since this is only a 3-month gig I will only be walking away with ~$18,000 pre-tax (~$10,800 post-tax) at the end of the internship.
I am a Utah resident and I plan to do my final year of my degree at my local university following the internship. The following 9 months I want to be minimally employed, focus on school, and live off the money earned. So, my yearly earnings will likely be well below $35k.