jaxgab
Returning Member

Simple Calculation of Federal Tax

I'm looking at a simple calculation of 2024 Federal Income Tax (Line 16) in 2024 Turbotax Premier.

 

$ 100,000 W-2 Wages - $ 14,600 Standard Deduction = $ 85,400 Taxable Income

Age 30 Taxpayer, Single Status

 

2024 Turbotax Premier calculates the Federal Income Tax (Line 16) = $ 13,847

 

I manually calculate the Federal Income Tax  = $ 13,841 , and this amount is confirmed @

https://www.nerdwallet.com/calculator/tax-calculator

 

Why can't I manually calculate the Federal Income Tax (Line 16) shown in Turbotax?