Net monthly gain vs. staying home
+$4,475/mo
Worth the move.
Effective hourly at Boise
$68.00/hr
CoL-adjusted + per diem + state tax
→Per diem: $170/day × 22 days = $3,740/mo (non-taxable)
→Housing savings: $1,200 - $950 = +$250/mo
→Scale premium: $485/mo after 5.8% ID tax
The per diem math
$170/day × 22 working days = $3,740/month. That is completely non-taxable. After paying $950/month for housing in Boise, you net $3,990/month from the per diem alone — before any scale difference.
Per diem and housing vary by contractor and project. Always confirm current per diem with the hall for the specific call before making the move.