How is TurboTax calculating the marginal tax rate shown on its Summary table? Have you checked your math? The result appears to be grossly incorrect when compared to a manual calculation of added tax for an additional $1000 of income. For example, Turbo Tax shows a marginal tax rate of 18% on a reurn where the actual marginal tax rate is closer to 30%. There is a long history of this product defect as shown at the following link:
https://turbotax.community.intuit.ca/community/troubleshooting/discussion/the-marginal-tax-rate-disp...
