I am starting a new position on June 29th of this year. I have not worked for the previous few years because I was a full-time grad student. I went through the IRS calculator for filling out the W-4 and it says I should claim 5 allowances. I am a single male, no dependents, no other sources of income. I also went through the IRS worksheet for the W-4, and it suggests to claim 2. I'm assuming this number is based on the assumption that I will be working the entire year. I'm just wondering what I should claim. Should I claim 2 and then provide a written request to my employer to follow the "part-year method" since I will only be working for 6 months out of the year? Or should I claim 5 as the calculator suggests and take no further action?