Updated October 4, 2026. Quick answer: Yes, for Wisconsin’s plans. The 2025 Schedule CS instructions put the cap at $5,130 per beneficiary for 2025 and say the “total subtraction for a married couple may not exceed $5,130”.
What Wisconsin allows for 529 contributions
| Item | What the documents say |
|---|---|
| Treatment | Subtraction on Schedule CS |
| Limit | $5,130 per beneficiary for 2025; the total for a married couple may not exceed that |
| Plans that qualify | Edvest and Tomorrow’s Scholar only |
| Carryforward | Excess may be carried forward and claimed in future years, within the yearly limits |
| Not-qualified withdrawals | Added to Wisconsin income |
| Source | Wisconsin Department of Revenue, 2025 Schedule CS instructions |
A $10,000 contribution by a married couple
A married couple who put $10,000 into one beneficiary’s Edvest account can subtract $5,130, since the couple’s total may not exceed that. The other $4,870, computed as $10,000 less $5,130, can be carried forward to later years.
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Only two plans
The instructions name “two Wisconsin plans that qualify for the subtraction”, Edvest and Tomorrow’s Scholar.
Carryforward and add-backs
The instructions say the excess “may be carried forward to future years and claimed as a subtraction”. A distribution not used for qualified expenses “must be added to your Wisconsin income”.
What the documents do not say
- Whether the carryforward expires; the 2025 instructions state no limit on the number of years.
What changes in 2026
No change for tax year 2026 appears in the 2025 instructions, and the $5,130 limit is the 2025 figure.
Federal rules
A state break sits beside the federal rules for 529 plans: the statute is 26 U.S.C. 529 and the IRS explains it in Publication 970, Tax Benefits for Education.
Common mistakes
- Treating the $5,130 as a household figure for each beneficiary; the instructions cap a married couple’s total at that amount.
Related: how Wisconsin taxes retirement income, whether Wisconsin taxes pensions, the five questions behind any 529 state tax break, and the state-by-state table of 529 deductions.
Sources
- 2025 Schedule CS Instructions, College Savings Accounts (Edvest and Tomorrow’s Scholar), I-192: https://www.revenue.wi.gov/TaxForms2025/2025-ScheduleCS-Inst.pdf
Sources: the primary documents linked above, read on October 4, 2026. General information, not tax advice. Your own facts decide the outcome, and a preparer, the plan administrator or the agency itself is the right place to confirm anything consequential.