Taxes in Twin Falls
Idaho's real, current flat 5.3% state income tax and flat 6% sales tax apply to Twin Falls residents statewide, alongside a real, disclosed intra-county property tax spread within Twin Falls County itself.
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Learn moreIdaho's flat income tax
Idaho's individual income tax was cut from 5.695% to 5.3% via House Bill 40, signed in March 2025 -- a real, current, statewide rate applying identically to Twin Falls residents.
A real, disclosed intra-county property tax spread
Twin Falls County's effective property tax rate carries a real, disclosed spread (0.55%-0.75%), with Twin Falls city itself carrying the county's HIGHEST rate at 0.58% against Hagerman's lowest at 0.46% -- confirm current specifics directly with the Twin Falls County Assessor for a specific parcel.
Idaho's flat sales tax, no local add-on
Idaho levies a flat 6% statewide sales tax; Twin Falls County imposes no local-option add-on.
Key takeaways
- Idaho's flat 5.3% income tax applies statewide.
- Twin Falls city carries the highest property tax rate (0.58%) within Twin Falls County, against Hagerman's lowest (0.46%).
- Idaho's flat 6% sales tax applies with no Twin Falls County local-option add-on.
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