Since the IRS has accepted your return, you should wait until you receive a refund (if you are getting one) and then you can prepare, print, sign, and mail an amended (changed) return form 1040X to make the changes. Form 1040X is estimated to be available in TurboTax on 2/28/19 but the date has changed several times. Do not change your original return until you begin the amended return.
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