For Maryland, you can deduct up to $2,500 per beneficiary (in your case, per child).
Since you have two children you would be able to deduct up to $5,000 in contributions.
The tax return does not require you to itemize per child when filing the return, but you should enter no more than the maximum allowed for the deduction into the box in TurboTax for transfer to the tax forms.
If you had contributed $6,000, for example, you would enter just $5,000 - the amount deductible - into the entry box.
In your case, you will enter the full $4,000.
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