Updated October 4, 2026. Quick answer: No state deduction, because there is no personal state income tax to reduce. The Wyoming Business Council says the state has “NO personal state income tax”.
What Wyoming allows for 529 contributions
| Item | What the documents say |
|---|---|
| Treatment | Not applicable: no personal state income tax |
| Limit | None |
| Source | Wyoming Business Council; Wyoming Legislative Service Office |
A $10,000 contribution by a married couple
A married couple who put $10,000 into a 529 account for one child deducts $0 on a Wyoming return, because there is no Wyoming personal income tax return to deduct it on.
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What the documents do not say
- The Department of Revenue pages did not state this; the sources are the Business Council page and a 2021 Legislative Service Office comparison.
What changes in 2026
No change for tax year 2026 appears in the documents read for this page.
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
- Looking for a Wyoming deduction form; there is none.
Related: how Wyoming taxes retirement income, whether Wyoming taxes pensions, the five questions behind any 529 state tax break, and the state-by-state table of 529 deductions.
Sources
- Business Resources (Low Tax Burden): https://wyomingbusiness.org/why-wyoming/business-resources/
- Wyoming Tax Structure comparison to other states: https://wyoleg.gov/InterimCommittee/2021/03-202105102-6.wyotaxstructurecomparisontootherstatesLSO.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.