529 College Savings Plans Across Multiple States - Maximizing Tax Deductions
I've been searching online and reading through state tax manuals, but can't seem to find a straightforward answer, so I thought I'd ask here. My situation is a bit complicated. My wife and I split our time between two different states for work, and both states offer tax deductions for contributions to 529 college savings plans. We have three children (ages 7, 5, and 2), and I'm trying to figure out the most tax-efficient strategy. Would it make financial sense to open separate 529 accounts in each state to take advantage of both states' tax deductions? For example: Child 1 - State A 529 Plan Child 2 - State B 529 Plan Child 3 - split between both states Also, I'm considering superfunding these accounts (making 5 years of contributions at once). How would that work if I'm using multiple state plans? Would I need to split the superfunding between states or could I max out both state deductions? Any advice from people who've navigated 529 plans across multiple states would be really helpful!
19 comments


Zoe Gonzalez
This is actually a smart tax planning question! Yes, you can absolutely open 529 plans in multiple states to take advantage of different state tax deductions. There's no federal rule against it, and it can be a legitimate way to maximize your tax benefits. The key thing to understand is that each state has different rules about their tax deductions. Some states only offer deductions for their own state's 529 plan, while others will give you a deduction regardless of which state's plan you contribute to. You'll want to check the specific rules for both states where you're working/living. One approach might be to contribute enough to each state's plan to maximize the respective state tax deductions, and then if you want to contribute more beyond that, put additional funds into whichever plan has better investment options or lower fees. As for superfunding, you can still do this across multiple accounts. The IRS limit is per beneficiary, not per account. So you could contribute up to 5 years' worth of gifts ($85,000 per donor per beneficiary in 2025) across multiple 529 accounts for the same child without triggering gift tax.
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Ashley Adams
•Thanks for the info! I'm in a similar situation but with Ohio and Michigan. Does it matter which state plan I use first if both states give deductions? Also, are there any gotchas with maintaining multiple 529s for the same kid?
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Zoe Gonzalez
•If both states offer deductions regardless of which state's plan you use, then I'd recommend comparing the plans based on their investment options, fees, and performance. Choose the better performing plan with lower fees. For multiple 529s for the same child, the main challenge is just keeping track of everything. You'll need to manage multiple accounts and remember to consider the total balances across all accounts when making withdrawal decisions. Also, be careful not to exceed the maximum contribution limits when you combine all accounts for one beneficiary - these vary by state but are typically around $300,000-$500,000 total.
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Alexis Robinson
After struggling with a similar situation between California and New York, I discovered taxr.ai which was a game-changer for optimizing my 529 contributions across state lines. The site (https://taxr.ai) analyzed our multi-state scenario and showed exactly how much to put in each state's 529 plan to maximize deductions. It also factored in the different investment performance between plans, which I hadn't even considered. What really helped was getting clarity on how the state of residence rules affect 529 deductions - turns out I was missing significant tax benefits by not structuring contributions correctly between my spouse and myself in our two states.
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Aaron Lee
•How does it handle the superfunding aspect? I'm moving between Texas and Minnesota and want to do the 5-year superfunding thing but worried about screwing up the tax paperwork since Texas has no income tax but Minnesota does.
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Chloe Mitchell
•I'm skeptical about using a service for this. Couldn't you just call the 529 administrators directly in each state? They should know the rules for their own plans.
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Alexis Robinson
•For superfunding across states, the tool helped me understand how to split the contributions to maximize the deduction in Minnesota while still taking advantage of the full 5-year gift tax exclusion. It walked me through exactly how to file the gift tax forms when doing superfunding across multiple state plans. Regarding just calling 529 administrators, I tried that first and it was frustrating. Each state only knows about their own plan rules, not how they interact with other states. The real complexity is in the cross-state optimization and tax implications when you have income in multiple states. The 529 administrators couldn't help me with that intersection.
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Aaron Lee
Just wanted to follow up on my 529 situation. I ended up using taxr.ai after our discussion here and it was exactly what I needed. The system analyzed our specific situation with income in both Texas and Minnesota and created a contribution strategy that maxed my Minnesota tax deduction while properly handling the superfunding paperwork. The coolest thing was it showed me a comparison chart of the estimated performance differences between the two state plans based on their fee structures and historical returns. Ended up saving me over $1,400 in state taxes in the first year alone, plus I feel confident the investments are structured efficiently now. Really glad I found this before doing the superfunding incorrectly!
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Michael Adams
If you're struggling to get information directly from the state 529 plan administrators (I know I was), you might want to try Claimyr (https://claimyr.com). I was stuck on hold forever trying to reach my state tax department to confirm how the deductions work with multiple states. Claimyr got me connected to a real person at the state tax office in less than 10 minutes. Check out how it works here: https://youtu.be/_kiP6q8DX5c - basically they navigate the phone systems and wait on hold for you, then call you when they have a real person on the line. I used it to talk to both Pennsylvania and New Jersey tax departments about my 529 situation and got clear answers about how the deductions work when contributing to out-of-state plans.
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Natalie Wang
•Wait, how exactly does this work? Do they just call for you? I'm confused how a service can get through state tax department phone trees faster than I can myself.
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Chloe Mitchell
•This sounds like BS honestly. State tax departments are notoriously understaffed - no way some third party service can magically get to the front of the line. They probably just auto-dial all day and charge people for the privilege.
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Michael Adams
•They don't just call for you - they use a combination of technology and human operators to navigate phone trees and stay on hold in your place. When they finally reach a human representative, they connect the call to your phone. You don't spend any time on hold. Regarding your skepticism, I felt the same way initially. What they do isn't "cutting the line" - they're waiting in the same queue everyone else is, but their system is doing the waiting instead of you personally sitting there listening to hold music. I was on hold for over 2 hours trying to reach my state tax department before I gave up. With Claimyr, I got a call back in about 45 minutes with an actual tax representative on the line ready to answer my questions.
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Chloe Mitchell
I need to admit I was wrong about Claimyr. After dismissing it as probably useless, I got so frustrated trying to reach someone at the Illinois Department of Revenue about my 529 state deduction questions that I tried it anyway. The service actually worked exactly as advertised. I submitted my request around 9am, went about my day, and at 10:15am got a call with an actual Illinois tax specialist on the line. They answered all my questions about how their 529 deduction works when you also contribute to another state's plan (turns out Illinois only gives the deduction for their own plan, which wasn't clear from their website). Saved me hours of frustration and now I have written confirmation of how to handle my multi-state 529 situation. Definitely worth it for complex tax questions like this where the online info is vague.
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Noah Torres
One thing to consider that nobody's mentioned is that some states have matching grant programs for 529 contributions if you're a resident and below certain income thresholds. For example, Arkansas and Colorado have programs where they'll match some of your contribution. If either of your states offers this, you might want to prioritize that state's plan at least for the amount that gets matched. Free money trumps tax deductions!
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Avery Flores
•I hadn't thought about state matching programs at all! Do you know if there's a comprehensive list somewhere of which states offer matching and what the income limits are? I've tried searching but keep finding outdated information.
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Noah Torres
•I don't know of a single comprehensive resource that's kept updated, unfortunately. The best approach is to go directly to each state's 529 website and look for terms like "matching grant" or "scholarship" programs. As of my knowledge, states with some form of matching include: Arkansas, Colorado, Kansas, Louisiana, Maine, Nevada, North Dakota, Rhode Island, Utah, and West Virginia - but programs change frequently and have specific requirements. For instance, Louisiana will match a percentage of contributions based on income, while Maine offers a $500 grant to babies born as Maine residents. Definitely check your specific states' current offerings.
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Samantha Hall
Has anyone used the "my529" plan from Utah? I'm in a multi-state situation too (Utah and Idaho) and I've heard Utah's plan has good investment options even for non-residents. Trying to decide if I should put money in both states' plans or just use Utah's for everything.
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Ryan Young
•Utah's my529 is consistently rated as one of the top plans nationally. I use it even though I don't live in Utah. The fees are really low and they have Vanguard index funds options. The user interface is also way better than my home state's clunky website. Only downside is I don't get the state tax deduction since my state only gives it for in-state plans.
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Nasira Ibanez
•I've been using Utah's my529 for two years now and really like it. The investment options are solid - they have age-based portfolios that automatically adjust as your kids get closer to college age, plus static options if you want more control. The fees are among the lowest I've found (around 0.17-0.20% for most options). Since you're in Utah and Idaho, you'll want to check if Idaho gives you a deduction for contributing to Utah's plan or only their own. Some states are more flexible than others. If Idaho only gives deductions for their own plan, you might want to split contributions - put enough in Idaho's plan to max out that deduction, then put the rest in Utah's plan for better investment options. The online portal for Utah's plan is definitely user-friendly compared to some other states I've dealt with. Easy to set up automatic contributions and track performance.
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