@DONUSA56
In the desktop version of TT go to top of page choose VIEW> choose Forms>Under Federal section, choose Info Wks> about half way down the page Part VI is Third Party Designee and you can edit it.
For state choose VIEW> choose Forms>Under your state section, choose Info Worksheet and under section XII should be the ability to change the designee.
**I don't work for TT. Just trying to help. All the best.
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**Mark the post that answers your question by clicking on "Mark as Best Answer" I am NOT an expert and you should confirm with a tax expert.