I suspect the bug is related to imported data from Fidelity Investments. When the dividend data is imported, the amounts entered for tax-free dividend from other states does is not added back into Maryland income on form 502. If the same data is manually typed into the dividend step by step dialog, the tax-free dividend from other states is added back into Maryland income on form 502. The bug appears to be triggered by imported data and can significantly underreport Maryland taxable income.
