Box 7 since it's for work performed.
But as others have indicated, it should have been on a W-2, not a 1099-Misc. I disagree with Carl's work around. Although it is not self employment, it is wages, so it is not box 3 income either. It should be handled slightly differently.
After you enter your 1099-Misc, select that
you got the 1099-Misc for another reason. Then select "My employer reported
this extra money on a 1099-MISC but it should have been reported on a W-2"
from the drop down list.
You will pay your share of the Social security & medicare tax on form 8919 .
You also have to submit form SS-8 and the IRS will determine whether you or
the employer pays the employer portion of the SS tax.
Form SS-8 is not in TT but is here ===>>> http://www.irs.gov/pub/irs-pdf/fss8.pdf
See this IRS site ===>>> http://www.irs.gov/taxtopics/tc762.html
