You basically ignore box 14. You do nothing with the tuition amount in box 14. It's only informational. TurboTax will not pick it up or do anything with it.
By law, your employer can only give you $5250 maximum, tax free. If your tuition was less than that, and you employer reimbursed it all; it’s safe to assume it does not need to be reported. You do not even need to enter your 1098-T. You have nothing to claim.
If you got more than $5250, the amount above $5250 is usually already included in box 1 of your w-2 and you do not need to enter anything additional on your tax return. Since you have essentially paid tax on that part, it is considered your after tax money and that amount can be used to claim the tuition credit.
The box 14 amount may the total tuition amount or just the excess over $5250. If that's not clear from your payroll records, you may have to ask your employer.
