Best 529 Plans 2026: State Tax Benefits, Fees, and When to Go Out of State

A 529 plan is one of the clearest wins in college savings: your contributions grow tax-free, and as long as you use the money for qualified education expenses, you never pay tax on the growth. For families in states with income tax, the state deduction can add meaningful savings in the contribution years before the account even begins to grow.

The confusion is in the choice: every state operates its own 529 plan (some operate more than one), and you are not required to use your own state's plan. This guide explains when to stick with your state's plan, when to go out of state, how expense ratios compound into real dollars, and what the SECURE 2.0 Roth IRA rollover rule means for families worried about saving too much.

The bottom line

Utah My529 and Nevada's Vanguard 529 Plan are frequently cited by independent analysts as among the strongest national plans for low fees and investment quality. They are particularly well-suited for residents of states without an income tax (or states with weak or no 529 deduction), because there is no state-specific tax benefit to keep you in your home-state plan.

If your state offers a meaningful deduction, such as Illinois, New York, or Virginia, start by calculating whether the state tax savings outweigh any fee disadvantage before choosing a national plan. The state deduction math is straightforward, and it often tips the decision toward the home-state plan even if its expense ratios are modestly higher.

Verify current expense ratios, fund options, and state tax benefits directly with each plan before opening an account, as these details change.

Start with your state, then compare nationally

The state tax deduction: when it tips the decision

Illinois example: Illinois allows a deduction for contributions to its Bright Start 529 plan (verify current terms at the Illinois state plan site). The Illinois flat income tax rate is 4.95%.

$10,000 contribution: State tax savings calculation: $10,000 x 4.95% = $495 in Illinois state income tax saved in the contribution year.

If you contribute $10,000 per year for 18 years: Cumulative state tax savings: $495 x 18 = $8,910, not counting the growth on those saved dollars.

This is meaningful money. If the Illinois plan's expense ratios are within 0.30% of a national plan, the state deduction often wins the comparison even before accounting for the simplicity of staying in-state.

However, if the state plan charges 0.50% expense ratios while Utah My529 charges 0.10%, the fee drag compounds over 18 years and may eventually outpace the state deduction benefit. Run the specific numbers for your state and balance.

Expense ratio math: what a 0.40% difference actually costs

The following example is illustrative and uses a hypothetical growth rate. It is not a guarantee of any future result.

Scenario: $50,000 529 balance

At 0.10% expense ratio: $50,000 x 0.10% = $50/year in fees At 0.50% expense ratio: $50,000 x 0.50% = $250/year in fees Annual fee difference: $200/year

Over 10 years at a hypothetical 7% annual growth rate, the fee drag from $200/year in additional costs reduces the ending balance by approximately $2,800. Calculation: $200/year for 10 years at 7% = $200 x [(1.07^10 - 1) / 0.07] = approximately $2,758, rounded to approximately $2,800.

Over 18 years (a typical 529 horizon from birth to college), the difference compounds further. The exact amount depends on contributions, growth rates, and when the money is withdrawn.

SECURE 2.0 Roth IRA rollover: flexibility, not a workaround

Beginning in 2024, the SECURE 2.0 Act allows unused 529 funds to be rolled over to a Roth IRA for the beneficiary. This is a significant change for families who worry about overfunding a 529.

The key conditions (verify current rules with IRS.gov and a tax professional, as IRS guidance on some details is still developing):

• The 529 account must have been open for at least 15 years
• Lifetime rollover cap: $35,000 per beneficiary
• Annual rollovers are limited to the Roth IRA annual contribution limit for that year (currently $7,000 for 2025, verify at IRS.gov)
• Contributions and earnings from the past 5 years cannot be rolled over
• The rollover goes to the beneficiary's Roth IRA, not the account owner's

At the current pace, rolling $7,000/year, it takes 5 years to move the full $35,000 (and only if the contribution limit stays at $7,000: verify current limits at IRS.gov).

This is a useful safety valve, not a primary strategy. It is best used as backup flexibility for families with extra 529 funds after college, not as a reason to overfund. The rules are complex enough that a tax professional should review the specifics of your situation before you rely on this option.

Qualified expenses: what a 529 can and cannot pay for

529 funds can be used tax-free for:

• Tuition, fees, books, and supplies at accredited colleges and universities
• Room and board (for students enrolled at least half-time; amounts limited to the school's published cost of attendance)
• K-12 tuition up to $10,000 per year per beneficiary
• Student loan repayment up to $10,000 lifetime per beneficiary
• Registered apprenticeship programs

Non-qualified withdrawals trigger ordinary income tax plus a 10% penalty on the earnings portion. The contribution principal is always returned penalty-free (you already paid tax on it). Source: IRS Publication 970. Verify current qualified expense definitions at IRS.gov, as Congress has expanded these periodically.

Choose Utah My529 or Nevada Vanguard 529 if

• You live in a state with no income tax and want the strongest national plan
• You live in a state with a weak 529 deduction and a high-fee state plan
• You want access to Vanguard index funds at institutional expense ratios
• You are a non-resident who has determined the fee advantage outweighs your state's deduction benefit

Utah My529

Utah My529 consistently ranks among the top 529 plans nationally for its combination of low-cost investment options (including Vanguard funds), flexible investment choices, and no residency requirement for non-Utah residents. Verify current expense ratios, fund options, and any changes to the plan at my529.org.

Nevada Vanguard 529 (The Vanguard 529 College Savings Plan)

Nevada hosts the Vanguard 529 College Savings Plan, which gives access to Vanguard's full fund lineup at competitive expense ratios. There is no Nevada state income tax, so there is no state deduction benefit for any contributor. For investors who want Vanguard funds specifically and are comfortable managing their own age-based allocation, this plan is a strong option. Verify current fund options, fees, and terms at Vanguard.com.

State plans with strong deductions

Several states are consistently cited for meaningful 529 deductions or credits:

• Illinois (Bright Start): deduction for contributions; verify current deduction cap and terms at the Illinois 529 plan site
• New York (NY 529 Direct Plan): deduction of up to $5,000 single / $10,000 joint annually; verify current terms
• Virginia (Virginia529): deduction of up to $4,000 per account per year; verify current terms

For residents of these states, the deduction is often worth staying in-state even if the plan is not the best nationally, as long as the expense ratios are reasonable (under 0.50% all-in). Verify current deduction limits, plan fees, and investment options at each state's plan site.

When this recommendation changes

• If your state adds or significantly increases its 529 deduction, that may tip the analysis toward staying in-state even for residents who had previously gone out of state
• If a national plan changes its expense ratios or fund lineup, re-evaluate the comparison
• If the SECURE 2.0 Roth IRA rollover rules are clarified or modified by future IRS guidance, update the rollover strategy
• If your child's education path changes (trade school, gap year, no college), reassess the beneficiary change or rollover options available

How we ranked

We evaluated 529 plans on total annual expense ratios (including fund expenses and any program management fee), investment option quality (including index fund access and age-based portfolio design), state tax benefit strength, account minimums, flexibility (beneficiary change and rollover ease), and independent third-party rankings. No compensation was received from any state plan or plan manager for inclusion in this guide. Verify all current terms, fees, investment options, and state tax rules directly with each plan and with your state's tax authority or a tax professional.

This guide is for informational purposes only and does not constitute tax or investment advice. Consult a qualified tax professional or financial advisor before making 529 contribution or rollover decisions.