It says my effective tax rate is 13.48%, but then also says: Based off your $49,188 of total taxable the regular income tax is $8,033. That is 16.3%, not 13.48%

[AnthonyC · Accepted solution]

The 13.48% you are seeing is your effective tax rate.  Your effective tax rate is your average rate that your total income is taxed at (not just taxable income).  

It includes the amount of your income that is not taxed at all (for example - the first $10,350 of a single taxpayer with no dependents is taxed at 0%), so the rate is lower than that of the marginal tax brackets.  You can find more information about how to calculate tax and the 2017 tax tables at this link - 2017 Tax Table

Using the tax table above, $49,188 of total taxable income would yield a tax of $8,033 for a single taxpayer.

Note:  In some cases, you don't use the tax table to calculate tax liability and you will have to use other worksheets (i.e when you have income taxed at favorable capital gains rates).  But, for this case, it appears you are using the tax table.

[jacebartley12]

Very helpful, Thank you!