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Yes - you do need to follow Wisconsin community property laws.
As the general effect of community property laws on the federal income tax treatment - a spouse's wages, earnings, and net prof-its from a sole proprietorship are community income and must be evenly split.That treatment must be started from the day you became Wisconsin residents.
Before that date while you were Minnesota residents - community property laws did not apply - and no need to divide that income.
You would need to allocate wages for federal tax purposes.
Before you moved to Wisconsin - the community property laws did not apply - you report ONLY your wages and your spouse will report ONLY his wages.
After you moved to Wisconsin - you report a half of your wages (and a half of your withholding) plus a half of your spouse's wages (and a half of his withholding).
Similarly - for your husband.
Let me know if you need help to verify your circulations.