Separation and Divorce: Spousal Support
How are spousal support payments taxed?
Monthly spousal support is taxable for the spouse receiving support (the "recipient") and tax deductible for the spouse paying support (the "payor"). This is different from how child support is taxed.
But if the support is paid all at once in a lump sum it is not taxable for the recipient and the payor cannot claim it as a tax deduction.