The amount used for claiming education are qualified education expenses you actually paid to the school in 2019 which should be shown in box 1 of form 1098-T.
If your box 1 does not show the correct amount paid, when filling out your form 1098-T in TurboTax, just enter the amount in box 1 of your form 1098-T on the entry screen.
Under box 1, on the 1098-T screen is a radio button: This is not what (student name) paid to this school. Click on that and you will be given a chance to enter what was actually paid in 2019.
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