WISCONSIN 529 PLAN · TAX YEAR 2026
Wisconsin 529 tax deduction calculator
Wisconsin lets you deduct up to $5,280 per beneficiary of contributions to Wisconsin's 529 plan. A single filer with $75,000 of wages who contributes $5,000 saves $297 of Wisconsin tax.
State tax saved
- Wisconsin tax saved
- $296.80
- Deduction
- $5,000.00
- Deduction limit
- $5,280.00
- Wisconsin tax before
- $2,943.52
- Wisconsin tax after
- $2,646.72
Wisconsin tax saved by contribution
With $75,000 of wages and one beneficiary.
| Contribution | Single | Married filing jointly |
|---|---|---|
| $1,000 | $59 | $53 |
| $5,000 | $297 | $264 |
| $10,000 | $313 | $278 |
| $20,000 | $313 | $278 |
Wisconsin 529 tax questions
Does Wisconsin have a 529 tax deduction?
Yes. Wisconsin lets you deduct up to $5,280 per beneficiary of contributions to Wisconsin's 529 plan.
How much does a $5,000 529 contribution save in Wisconsin?
$297 of Wisconsin tax for a single filer with $75,000 of wages, and $264 for a married couple filing jointly with the same income.
Which 529 plans qualify for Wisconsin's deduction?
Only Edvest and Tomorrow's Scholar. Principal rolled in from another state's plan counts.
Can a contribution made in 2027 count for Wisconsin's 2026 deduction?
Yes. Contributions made through April 15 can be designated to the prior year. Any excess carries forward, limited each year.
What the calculator leaves out
The calculator assumes the contribution goes to a plan that qualifies for the state's benefit: the state's own plan unless the state accepts any 529 plan. Wages are the only income, and they stand in for the income a state tests against its limits. Per-beneficiary limits assume the contribution is split evenly. Federal tax does not change, because 529 contributions aren't federally deductible. Carryforwards of earlier contributions, recapture on nonqualified withdrawals and city or school district taxes are left out.