Taxes in Duncan
Duncan's tax picture combines a genuinely low property tax rate and Oklahoma's real, low, further-cut state income tax with a genuinely more modest local sales tax than several other Oklahoma Tier A markets.
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Learn moreA genuinely low property tax rate
Duncan's own median effective property tax rate ran approximately 0.80% (Ownwell), with the broader Stephens County average running slightly lower at approximately 0.73% -- both genuinely near Oklahoma's already-low 0.83%-0.90% statewide cluster.
Oklahoma's real, dated, CONTINGENT income-tax cut
Oklahoma's top marginal income tax rate fell to 4.5% effective 2026 (from 4.75%, cut in 2022) under a real, current statutory trigger mechanism (2025's HB 2764) -- genuinely automatic once a revenue-growth trigger is met, but contingent on that growth actually materializing.
A genuinely more modest combined sales tax, with real ZIP variance
Duncan's own combined sales tax rate carried a real, disclosed ZIP-based spread -- approximately 8.7% (state 4.5% + city 3.5% + Stephens County 0.7%) to approximately 9.2% (ZIP 73533, city rate 4.0%) -- genuinely more modest than several other Oklahoma Tier A markets documented in this project.
Key takeaways
- Duncan's own property tax rate (0.80%) runs genuinely near Oklahoma's already-low statewide cluster.
- Oklahoma's 4.5% top income tax (effective 2026) is genuinely automatic-once-triggered but contingent on revenue growth.
- Duncan's own combined sales tax (8.7%-9.2%) runs genuinely more modest than several other Oklahoma Tier A markets.
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