More than likely, you do not need to mention it in the moving expense section. However, you
may have an entry in a W-2, Box 12, Code P. Code P means "Exclusionary moving expense
reimbursements". This amount isn't included in your income in Box 1. If you
deduct moving expenses, you can't deduct the expenses for which you've been
reimbursed.
For many employer paid moves, employers will reimburse you for all the deductible moving
expenses (not included in your income - Code P), plus they will reimburse you
for expenses that, according to the IRS, are not deductible. Reimbursements for
these may be included in Box 1, Wages. Employers may increase your
reimbursement on top of that to make up for the extra taxes you may owe. This
is also known as "Gross-Up".
This situation many
times
leaves taxpayers with no remaining deductible credit and basically, no moving expense reporting necessary.