529 Contribution Limits 2025 Wisconsin. The wisconsin state income tax deduction for contributions made to a wisconsin 529 plan is available to any wisconsin taxpayer, not just the 529 plan account owner, making gift. The maximum contribution limit pertains to each beneficiary.
Of course, your total amount in the plan can be higher as your investments. The aggregate 529 contribution limit varies across states from $235,000 to greater than $550,000, with the threshold set to ensure that potential costs for higher.