Because you are being taxed on your reimbursement, your relocation amount was simply a bonus for tax purposes. You can deduct all qualified moving expenses (it's when you are reimbursed before tax, that things get complicated).
The software will ask you about all your moving expenses and have blue hyperlinks to more information for the qualifications and expenses you can deduct.
You do not need to include proof of each expense to the IRS, when submitting your return. It's not standard for the IRS to request this information either.
However, proof of your deduction can be requested, so you should have detailed records for the amount of your moving expense deduction. This could be made of:
- A document which lists each expense and the total
- If you have the reciept or not, and if not, include the info that would have been on the reciept
- Bank or credit card statements
- Email confirmations or any other proof
