Why Income for Taxes is Different from Income for Support Posted onJanuary 13, 2013August 11, 2020/ Devry Smith Frank LLP Podcast #6 – Why Income for Taxes is Different from Income for Support This episode discussed how a self-employed person’s income for support can be much different, usually higher, than what that person shows on their tax return. This is the case even when the self-employed person is being entirely honest on his or her tax return. Self- employed people are taxed differently from people on salary, and so they are treated differently in relation to both spousal and child support. It is critical that when one or both separated spouse is self-employed, both spouses understand the difference in how support is calculated. Support may be much too low or much too high if both sides do not understand how to support calculations work.