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I paid alimony to my former spouse, but I don’t know their Social Security number (SSN)

If you’re claiming a deduction for alimony paid, the IRS requires that you include the SSN or ITIN of the former spouse receiving the alimony payments on your tax return. If you don’t provide your former spouse’s SSN or ITIN, the IRS may disallow your deduction for the payments and charge a $50 penalty.

The IRS requires that your former spouse provide you with their SSN or ITIN. Otherwise, they may have to pay a $50 penalty.

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