It appears the Turbo Tax MO-A is adding back too much in state tax deductions to MO itemized deductions when the taxpayer has phased down federal state and local income tax deductions from $40,000 to $10,000 due to AGI on their federal Schedule A. When adding back the portion of state tax deductions due to income taxes, TurboTax starts with $40,000 instead of $10,000.
