<prompt> Human: If I wanted to max out my 401k, I would want to contribute about 17 of my salary every paycheck with a Traditional.If my paycheck is 108,000 a year, that would be 108,000 0.17 18,360 close enough.My question is, for a Roth 401k, I would have to contribute significantly higher percentage of my pay to max it out because its after tax right?Assuming 24 tax, thats 108,000 0.76 82,000 take home. Which means, Id have to contribute 23 of this take home to max out my Roth 401k, right?So to max out Roth 401k, I should put down for the 401k percentage 23, correct? Im fairly new to all of this so please excuse me if this is a stupid question.  <response>: It is still the same percentage. The pretaxposttax differentiation is about whether the money is deducted from your taxable income, not how much it is. 