Taxes in Coeur d'Alene
Idaho levies a real, current flat 5.3% individual income tax on wages, retirement withdrawals, and capital gains alike (cut from 5.695% by 2025's House Bill 40) -- a genuine, direct, and meaningful contrast with income-tax-free Washington just across the state line in Spokane, though Washington's own real capital gains excise tax and higher combined sales tax are genuine, offsetting costs on that side of the comparison.
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Learn moreIdaho's Flat 5.3% Income Tax -- Real, Current, and Recently Cut
Idaho's individual income tax rate is a flat 5.3% as of 2026, cut from 5.695% by House Bill 40 (signed by Governor Brad Little in March 2025) -- state officials called it the largest income tax cut in Idaho history, and Idaho has cut this rate repeatedly in recent years. This applies uniformly to wages, business income, retirement account withdrawals, and capital gains alike -- there is no separate, higher bracket for high earners the way a graduated system would apply.
Capital Gains Are Taxed as Ordinary Income -- A Real, Different Mechanism Than Washington's Excise Tax
Idaho taxes both short- and long-term capital gains as ordinary income at the same flat 5.3% rate, with no separate preferential capital gains rate -- a materially different, and for most taxpayers simpler, mechanism than Washington's narrowly targeted capital gains excise tax (7% base rate, 9.9% top rate above $1 million in gains, applying only to gains above an inflation-indexed threshold -- see spokane-wa.js/washington.js). Idaho does offer a real, meaningful 60% deduction for qualifying Idaho-based property or business capital gains held 12+ months, a genuine incentive worth understanding for anyone with Idaho-based investment or business-sale gains specifically.
Social Security Is Fully Exempt; Other Retirement Income Is Fully Taxable
Idaho fully exempts Social Security benefits from state income tax, with no income limit -- a real, meaningful, and unconditional benefit. Pensions, IRA withdrawals, and 401(k) distributions, by contrast, remain fully taxable at the flat 5.3% rate, with no special retirement-account exemption; a new federal-OBBBA-conformity senior deduction of up to $6,000 for filers 65+ applies subject to income-based phase-outs, a real but comparatively modest additional benefit.
A Comparatively Low, Flat 6% Sales Tax
Idaho's statewide sales tax is 6%, and Coeur d'Alene adds zero local sales tax on top of it -- a real, flat, comparatively low combined rate versus both Seattle's 10.55% and Spokane's 8.7%-9.1% (see seattle-wa.js/spokane-wa.js for those figures), a genuine cost advantage on non-grocery purchases.
The Honest, Two-Sided Comparison With Washington
Idaho's real income tax versus Washington's real lack of one is the single most direct tax contrast between Coeur d'Alene and nearby Spokane, WA -- but it is genuinely two-sided, not a one-way pitch: Washington's own real capital gains excise tax (reaching high earners with substantial investment or equity gains specifically) and its meaningfully higher combined sales tax are real, offsetting Washington-side costs, just as Idaho's real income tax is offset by its lower sales tax and broadly available property tax relief. Anyone comparing the two specifically should run the actual numbers for their own income mix rather than assume either state is simply 'cheaper' across the board.
Key takeaways
- Idaho's flat 5.3% individual income tax (cut from 5.695% in 2025) applies to wages, retirement withdrawals, and capital gains alike -- a real, direct, and meaningful contrast with income-tax-free Washington just across the state line in Spokane.
- Idaho taxes capital gains as ordinary income at the same flat rate, with a real 60% deduction for qualifying Idaho-based property held 12+ months -- a materially different mechanism than Washington's narrower capital gains excise tax.
- Social Security is fully, unconditionally exempt from Idaho state income tax; pensions and retirement-account withdrawals remain fully taxable at the flat rate, with a modest new $6,000 senior deduction for filers 65+.
- Idaho's flat 6% sales tax with zero Coeur d'Alene local add-on runs meaningfully lower than either Seattle's or Spokane's combined rate.
- The Idaho-versus-Washington tax comparison is genuinely two-sided: Idaho's real income tax is offset by lower sales tax and broader property tax relief, while Washington's no-income-tax status is offset by its own real capital gains excise tax and higher sales tax -- run the actual numbers rather than assume either state is simply cheaper.
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