Taxes in Portage
Michigan's real, flat 4.25% state income tax applies to Portage residents, with NO city income tax -- layered on Portage's own effective property tax rate, notably above neighboring Kalamazoo's.
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Learn moreMichigan's flat state income tax, with no Portage add-on
Michigan levies a flat 4.25% state income tax (no brackets). Portage is confirmed NOT among the 24 Michigan cities that levy a separate municipal income tax -- residents pay only the state rate.
Proposal A and Portage's own, notably higher property tax rate
Portage's own median effective property tax rate ran 1.40% per Ownwell -- above the Michigan statewide (1.05%) and national (1.02%) medians, and notably higher than neighboring Kalamazoo's own 0.58% rate, a real, disclosed intra-county contrast. Proposal A caps taxable-value growth at the lesser of 5% or inflation (2.7% for 2026) for existing owners.
Confirm the specific millage for a target address
Given the real spread by ZIP code within Portage itself (1.43% in 49024 vs. 1.34% in 49002), confirm a specific property's actual current millage directly with the Kalamazoo County Treasurer or Portage's own assessor.
Key takeaways
- Michigan's flat 4.25% state income tax applies, with NO Portage city income tax.
- Portage's own effective property tax rate (1.40%) runs notably above neighboring Kalamazoo's (0.58%).
- Proposal A caps taxable-value growth at the lesser of 5% or inflation annually, uncapped only at sale.
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