Will contributing to a 457(b) help lower my AGI for Roth IRA eligibility?
I'm desperately trying to get my MAGI low enough to qualify for Roth IRA contributions this year. Next year I'll just do the backdoor Roth conversion thing, but for various reasons that won't work for me right now. I started contributing to my employer's pre-tax 457(b) plan thinking it would lower my AGI, but I'm confused because my most recent paycheck shows the same gross amount as before - only my net pay decreased. This has me really worried that the 457(b) contributions aren't actually reducing my AGI like I thought they would. Does anyone know if pre-tax 457(b) contributions actually lower your AGI for tax purposes even if they don't change your gross pay on your paycheck? I've been searching online for hours but still can't figure this out. Beyond taking a literal pay cut (which I'm not about to do!), are there other strategies I'm missing to lower my AGI/MAGI enough to stay under the Roth IRA income limits? I'm getting desperate here since the contribution deadline is approaching.
20 comments


NeonNebula
Yes, your pre-tax 457(b) contributions absolutely will lower your AGI for tax purposes! The confusion is happening because your paycheck's "gross pay" is just showing your total earnings before any deductions. What matters for AGI reduction is that your W-2 at the end of the year will show a lower amount in Box 1 (Wages, tips, other compensation) than your actual earnings because pre-tax retirement contributions like 457(b) are excluded from that box. This lower Box 1 amount is what flows to your tax return and determines your AGI. Other ways to lower your AGI include: - Traditional IRA contributions (if you qualify) - HSA contributions (if you have an eligible high-deductible health plan) - Certain business expenses if you have any self-employment income - Student loan interest deductions (if applicable) Don't worry too much about what your paystub shows as "gross" - focus on the W-2 Box 1 amount which will reflect the AGI reduction from your 457(b) contributions.
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Anastasia Kozlov
•Thanks for explaining this! So if I'm reading this right, my employer basically takes out the 457(b) contribution AFTER calculating my gross pay for the paystub, but BEFORE reporting my wages to the IRS on my W-2? Does this mean I won't actually know if I'm eligible for the Roth IRA until I get my W-2 in January? Also, I have an HSA through work - are you saying those contributions lower AGI too?
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NeonNebula
•You've got it exactly right! Your employer shows your full earnings as "gross pay" on your paystub, but when they prepare your W-2, they'll subtract your 457(b) contributions before reporting your wages in Box 1. This is why your pre-tax retirement contributions effectively lower your AGI even though they don't change the "gross pay" line on your paystub. Yes, HSA contributions are another excellent way to lower your AGI! Whether made through payroll deduction or directly by you, HSA contributions are an "above-the-line" deduction that reduces your AGI (and therefore your MAGI for Roth IRA purposes).
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Sean Kelly
I was in the exact same situation last year trying to qualify for Roth contributions. I discovered taxr.ai (https://taxr.ai) which really helped me understand all the different ways to reduce my AGI. The tool analyzed my specific situation and showed me several deductions I was missing that could bring my MAGI down enough to qualify for the Roth. For me, it wasn't just the 457(b) but also maximizing HSA contributions and some business expenses from my side hustle that made the difference. The site broke down exactly how each deduction affected my AGI calculation and gave me a clear target for how much I needed to contribute to get under the threshold.
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Zara Mirza
•How accurate is this taxr.ai thing? I've been using TurboTax for years but they never seem to give me specific advice on lowering AGI for Roth eligibility. Does it actually connect to your accounts or do you have to input everything manually?
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Luca Russo
•I'm skeptical of these tax tools. Does it actually tell you anything you couldn't figure out from a good Google search? I mean, I know about 401k/457b contributions, HSA, etc. already.
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Sean Kelly
•It doesn't connect to your accounts - you input your information manually, but that's actually what I liked because I could play around with different scenarios. The accuracy was spot-on for my situation - it correctly calculated my exact AGI reduction from the 457(b) and HSA contributions. What really helped beyond just listing standard deductions was that it showed me how to optimize my specific situation. For instance, I discovered I could deduct some home office expenses from my side gig that I didn't realize qualified, which pushed me under the Roth limit. It's much more personalized than generic Google search results.
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Luca Russo
Just wanted to follow up - I ended up trying taxr.ai after my skeptical comment and I have to admit it was surprisingly helpful. It identified that I could deduct some professional development courses I paid for out-of-pocket that my employer didn't reimburse, which I had no idea about. It also helped me understand exactly how much I needed to contribute to my 457(b) to get below the Roth IRA threshold, which was really the clarity I needed. The planning feature helped me set up this year's contributions to avoid the whole last-minute scramble I went through last year.
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Nia Harris
After months of trying to get through to the IRS to ask about this exact 457(b)/Roth eligibility question, I finally used Claimyr (https://claimyr.com) to actually get a human at the IRS on the phone. You can see how it works here: https://youtu.be/_kiP6q8DX5c I was stuck in the endless phone tree hell for weeks before I tried it. The IRS agent confirmed exactly what others have said here - 457(b) contributions definitely reduce your AGI even though they don't change your gross pay on your paystub. She also gave me some specific guidance on how my particular employer's reporting might affect my W-2. The peace of mind from getting an official answer directly from the IRS was worth it after all the conflicting info online.
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GalaxyGazer
•Wait, there's actually a way to talk to a real person at the IRS? I've given up calling them because I waste hours and never get through. How exactly does this work? Is it just scheduling a callback or something?
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Mateo Sanchez
•This sounds like a scam honestly. The IRS phone system is broken by design. I find it hard to believe some third-party service can magically get you through when millions of people can't get through every tax season.
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Nia Harris
•It's not a scheduling system - it basically navigates the IRS phone tree for you and waits on hold so you don't have to. When it reaches a human, it calls you and connects you directly to the IRS agent. I was skeptical at first too, but it worked surprisingly well. The reason it works is because they have the technology to stay on hold for hours if needed, using automated systems that can detect when a human finally answers. It's not magic - just clever tech that does the waiting for you. I got through in about 45 minutes when I had previously given up after 2+ hours of waiting multiple times.
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Mateo Sanchez
I need to eat my words. After dismissing Claimyr as a probable scam, I was desperate enough to try it for an ongoing issue with my amended return. It actually worked exactly as described. I got connected to an IRS agent within an hour after trying for WEEKS on my own. The agent was able to see that my amended return was stuck in processing and gave me specific information about when it would be completed. They also confirmed all the AGI reduction strategies mentioned in this thread, particularly that 457(b) contributions definitely reduce AGI for Roth IRA qualification purposes. Honestly wish I'd known about this service months ago. Would have saved me so much stress.
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Aisha Mahmood
A little tip from someone who's been in your exact situation - don't forget about FSA (Flexible Spending Account) contributions if your employer offers them. While HSA contributions reduce your AGI, FSA contributions for healthcare do too! Also, if you have any student loan interest, up to $2,500 of that interest can be deducted to lower your AGI depending on your income level. And if you're a teacher, there's a $300 educator expense deduction. Every little bit helps when you're trying to get under the Roth IRA income limits!
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Diego Chavez
•Wait, are you sure FSA contributions reduce AGI? I thought only HSAs did that! I actually do have an FSA option at work but didn't sign up for it because I didn't think it would help with my Roth eligibility problem.
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Aisha Mahmood
•I need to correct myself - I was mistaken about FSAs. Healthcare FSA contributions are pre-tax and reduce your taxable income, but they don't reduce your AGI for purposes of determining Roth IRA eligibility. Only HSA contributions do that. This is exactly why this stuff is so confusing! Some pre-tax deductions affect AGI (like 457(b), 401(k), HSA, traditional IRA) while others only affect taxable income but not AGI (like healthcare FSA, dependent care FSA). Sorry for the confusion - I mixed them up in my comment.
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Ethan Moore
If you're married, don't forget about filing separately! My spouse makes way more than me, and filing separately let me qualify for Roth contributions based on just my income. The downside is you lose some other tax benefits tho.
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Yuki Kobayashi
•Filing separately can actually be a terrible idea for Roth eligibility - the income limit for married filing separately is only $10,000 if you lived together during the year. Above that, you can't contribute to a Roth at all! It's a common misconception that filing separately lets each spouse use the single filer Roth limits.
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Daniela Rossi
Adding to all the great advice here - one strategy that's often overlooked is maximizing your traditional IRA contribution if you're eligible. Even if you have a 401(k) or 457(b) at work, you might still be able to deduct traditional IRA contributions depending on your income level. For 2024, if you're single and your AGI is under $77,000 (or married filing jointly under $123,000), you can get the full $7,000 traditional IRA deduction even with a workplace plan. The deduction phases out at higher incomes but you might still get a partial deduction. This could be the extra AGI reduction you need to get under the Roth limits! Plus, if you end up over the Roth limits anyway, you can always convert that traditional IRA to a Roth later through the backdoor conversion method you mentioned for next year. Just make sure to check the exact income limits for your filing status and whether you qualify for the deduction with your workplace retirement plan.
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Kelsey Chin
•This is really helpful! I didn't realize there were income limits for traditional IRA deductibility when you have a workplace plan. So just to make sure I understand - if I'm single and my current AGI (before any IRA contribution) is say $75,000, I could contribute $7,000 to a traditional IRA and that would bring my AGI down to $68,000 for Roth eligibility purposes? And then if I'm still over the Roth limits even with the 457(b) and traditional IRA contributions, I could convert that traditional IRA to a Roth next year when I'm ready to do the backdoor conversion? That seems like a win-win strategy. Do you know if there's any timing issue with making the traditional IRA contribution and then converting it later, or any other gotchas I should be aware of?
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