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re: Employer 401k vs Roth 401K

Posted on 5/15/26 at 12:16 pm to
Posted by Everyday Is Saturday
Member since Dec 2025
1590 posts
Posted on 5/15/26 at 12:16 pm to
quote:

My opinion is that taxes have to go up between now and the time I retire


Agree.

I am telling my kids to plan as if Roth will not exist in the future. Therefore, treat it with white gloves today while it is here.
Posted by UpstairsComputer
Prairieville
Member since Jan 2017
1819 posts
Posted on 5/15/26 at 12:43 pm to
This is an incredibly lazy internet answer. The assumption being TCJA never gets repealed once the Republicans screw this all up? Seems like a big "never".

Assuming they do...

220k now is a marginal bracket of 22% and after standard deduction, spins off $31,144 in federal tax.

180k after it's repealed, marginal tax rate of 28% and after standard deduction is $31,461 in federal tax.
Posted by TorchtheFlyingTiger
1st coast
Member since Jan 2008
3183 posts
Posted on 5/15/26 at 2:36 pm to
quote:

Would you rather save 24% on 10k or 12% on $80k?
12% every time. It's not about cumulative taxes paid. It is which yields highest withdrawals net of taxes.
If you pay higher rate up front it leaves you with less invested capital. That's why if current rate and rate at withdrawal are equal it is a wash.
This post was edited on 5/15/26 at 2:38 pm
Posted by LSUFanHouston
NOLA
Member since Jul 2009
41081 posts
Posted on 5/15/26 at 4:48 pm to
quote:

12% every time. It's not about cumulative taxes paid. It is which yields highest withdrawals net of taxes. If you pay higher rate up front it leaves you with less invested capital.


That’s a very short term strategy.

Years of tax free growth will override short term cash outlay.

Assuming of course you think there will be growth.

Long term, giving less cumulative taxes to government could mean a lot
Posted by TorchtheFlyingTiger
1st coast
Member since Jan 2008
3183 posts
Posted on 5/15/26 at 5:58 pm to
It's basic math not "a very short term strategy"

If given $X to invest for the same # of years and growth rate the net result is the same whether you pay tax up front or at the end. So, if the tax rates are known (12% vs 22%) the lower rate is going to yield the best outcome whether or not it is paid up front (Roth) or at end ((traditional.)
That's also known as the commutative property of multiplication.
This post was edited on 5/15/26 at 5:59 pm
Posted by TorchtheFlyingTiger
1st coast
Member since Jan 2008
3183 posts
Posted on 5/15/26 at 6:34 pm to
Maybe this will better illustrate the concept using the scenario #s you provided.
Posted by LSUFanHouston
NOLA
Member since Jul 2009
41081 posts
Posted on 5/15/26 at 6:47 pm to
So you are not contributing the same amount In your example.
Posted by TorchtheFlyingTiger
1st coast
Member since Jan 2008
3183 posts
Posted on 5/15/26 at 6:59 pm to
Of course I'm starting each example with $10k available to invest just as you suggested. If an individual has excess cash to pay the taxes then the starting amount in both cases should include that $. Why wouldn't they contribute it if we are solving for tax optimized strategy? Eta: (Addressing behavioral economics inefficiencies is another matter)
This post was edited on 5/15/26 at 8:08 pm
Posted by LSUFanHouston
NOLA
Member since Jul 2009
41081 posts
Posted on 5/15/26 at 8:37 pm to
Also there is the other issue I mentioned.

Good chance the retiree won’t be in a 12 percent bracket.
Posted by SETH6180
TEXAS
Member since Feb 2020
1189 posts
Posted on 5/15/26 at 10:49 pm to
This is correct, very little chance I’m in the 12% bracket at retirement. Will either be in the same 24% bracket I am now or 22% at lowest.
Posted by KTiger85
Member since Oct 2018
956 posts
Posted on 5/16/26 at 9:15 am to
Your age is a key factor. The more years the money can grow makes Roth a better choice. Most of us can make a good return on our investments. The length of time t has to grow tax free is probably the highest criteria for this decision.
Posted by TorchtheFlyingTiger
1st coast
Member since Jan 2008
3183 posts
Posted on 5/16/26 at 9:25 am to
Again, that's not how the math works!
Given same number of years (and other variables) the results are same Roth vs Traditional.
Posted by CharlesUFarley
Daphne, AL
Member since Jan 2022
1107 posts
Posted on 5/16/26 at 9:51 am to
quote:

I am telling my kids to plan as if Roth will not exist in the future. Therefore, treat it with white gloves today while it is here.


Actually, it looks like the Gov. prefers for people to go Roth over Trad, gives them more revenue now.

If they tax the Roth, they will do it indirectly by counting it in you MAGI or similar method so that they can raise the taxes on your taxable income and still claim to have kept their promises. At least at first.
Posted by GoCrazyAuburn
Member since Feb 2010
41103 posts
Posted on 5/16/26 at 11:42 am to
quote:

Maybe this will better illustrate the concept using the scenario #s you provided.


This makes quite a few assumptions though. Maybe they are able to get down to the 12% bracket but that’s a big assumption. It also makes a big difference if the person can max out the Roth regardless of the upfront tax, which is obviously plenty possible. So, just assuming that they wouldn’t be able to invest the full $10k into it out post tax isn’t really a fair comparison unless you actually know they couldn’t. I get the point of the comparison to doing $10k flat number, but a true analysis for most would be looking at investing the same number into the account, so both investments should be a full 10k to show what the actual investment growth levels are.

Not saying the analysis is wrong by any means, but it is just picking and choosing certain things to illustrate a specific point and not really a blanket example of reality completely.
This post was edited on 5/16/26 at 11:48 am
Posted by CockHolliday
Columbia, SC
Member since Dec 2012
4851 posts
Posted on 5/16/26 at 12:09 pm to
I'm 51, going to cut back a little on my 401k contributions and max out my Roth ($8600/yr) each year until I retire since I plan to retire around 58 and will have the option to withdraw capital from my Roth tax-free until I turn 59 1/2. Basically I'm treating my Roth as a bridge between when I retire and when I can withdraw from my larger 401k penalty-free.

ETA: I'm a government employee and don't receive a 401k employer-match benefit, which makes a private Roth IRA that much more appealing to me.
This post was edited on 5/16/26 at 12:11 pm
Posted by StreamsOfWhiskey
The Woodlands, TX
Member since Jun 2013
922 posts
Posted on 5/16/26 at 1:15 pm to
I think this really depends on your age. I think there is a time for both. I’ve been doing the Roth 401k now for at least the last four years but I’m 53. As you get older, you want to make sure all of your money is not stuck in pre-tax accounts.
Posted by Everyday Is Saturday
Member since Dec 2025
1590 posts
Posted on 5/17/26 at 10:04 pm to
quote:

I'm 51, going to cut back a little on my 401k contributions and max out my Roth ($8600/yr) each year until I retire


If your income levels prevent you from investing directly in a Roth, a back door Roth conversion may allow you to max your 401k AND get $8600/yr into Roth (including 50yo catch ups).
Posted by SETH6180
TEXAS
Member since Feb 2020
1189 posts
Posted on 5/19/26 at 5:52 pm to
We do have a considerable amount of deductions that really help out
Posted by notsince98
KC, MO
Member since Oct 2012
22084 posts
Posted on 5/20/26 at 8:48 am to
quote:

Good chance the retiree won’t be in a 12 percent bracket.


Why not? The image is about a 12% effective tax, as in paying a total of 12% in taxes. To get a 12% effective tax rate, using the standard deduction, would require $178k taxable income for the year. I feel like that is going to cover pretty close to 98-99% of retirees.
This post was edited on 5/20/26 at 8:50 am
Posted by SETH6180
TEXAS
Member since Feb 2020
1189 posts
Posted on 5/20/26 at 9:16 am to
I'm not sure I follow (but I'm also not confident in my#'s),

$178K - $32,200-$6,400-$12,000=$138,400 so 38,400 will be taxed at 22% correct?


There is a reason I'm not an accountant lol


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