I'm a foreign student that will be in the US for two internships. I just started one in the summer and will be doing another one in the fall. I have to fill in my W4 and I'm still somewhat lost. I have heard multiple times that if I'm single I should just use 1 as number of the allowances, but I also had people sending me the IRS calculator: http://apps.irs.gov/app/withholdingcalculator/
When I use the calculator, it suggests me to fill in 12 allowances for the first internship and 0 for the second one. Does this even make sense?
The first internship will pay me $21,500 plus $10,000 bonus and the second one $20,400 plus $2000 bonus.