To enter/review/modify the taxpayer's or spouse's social security number in the return:
From within your TaxAct return (Online or Desktop), click on the Federal tab. On smaller devices, click the menu icon in the upper left-hand corner, then select Federal
Click Basic Information to expand the category and then click Name and address
The taxpayer's information is on the screen titled Name, Social Security Number and Date of Birth and the spouse's information is on the screen titled Spouse
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