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Turbo Tax 2021 - Calculation of marginal tax rate

Thank you.  I called support and shared my screen to show that my Marginal Tax rate displayed as 15% in the quick summary is incorrect.  Taxable income is between 50-100K so even on step 5 of the T1 the Federal Marginal Tax rate is already 20.5% which is more than the 15% shown.  Add on 9.15% for the provincial Marginal Tax bracket in Ontario (Form ON428), the marginal tax rate should be 29.65%, not 15%.

 

The support analyst indicated that I would need to speak to a tax expert to resolve this.   Because I have the Standard version, it would cost $54.99 to consult with a tax expert.  I will not be doing this.

 

They did say that they would escalate this internally to see if it is a bug.  If it is someone would be back to me.  If it is not they will not.  I received and email confirmation indicating the case was closed, however I still don't think the issue is resolved.

Turbo Tax 2021 - Calculation of marginal tax rate

Here is a great TurboTax article on how the marginal tax rate is calculated.

How is the Marginal Tax Rate calculated?

 

Thank you for choosing TurboTax.

Turbo Tax 2021 - Calculation of marginal tax rate

The issue isn't 'how to calculate the marginal tax rate' - but rather that Turbotax gives a wildly inaccurate percentage as your marginal tax rate rather than the correct one. Better to NOT even quote a marginal tax rate than give an inaccurate rate. This 'bug' has been in Turbotax for years and STILL isn't corrected.

Turbo Tax 2021 - Calculation of marginal tax rate

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