I spent $1300.00 ro renew my National Boards for Professional Teaching Certificate? Is this a legal deduction?

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To be deductible, your expenses must be for education that either maintains or improves your job skills, or is required by your employer or by law to keep your salary, status or job.

So, based on the above, you must be employed to deduct your certification expense.

Expenses to learn a new trade or job or to qualify for anew career aren't deductible.