Kentucky State Income Tax Guide (2026)
Kentucky has a flat 4% state income tax rate — one of the simplest and lowest flat-rate structures in the South.
Top State Rate
4.0%
$100k Take-Home
$75,311
/year (single)
State Tax on $100k
$3,869
single filer
Kentucky Income Tax Brackets (2026)
| Marginal Rate | Taxable Income (Single Filer) |
|---|---|
| 4% | $0→All income |
Each rate applies only to income within that bracket. Your effective rate is the average across all brackets — meaningfully lower than your top marginal rate.
Standard deduction: $3,160 single / $6,320 married filing jointly
Brackets reflect the most recently published schedules. Some states inflation-index thresholds annually — specific 2026 amounts may shift slightly. Verify with your state's Department of Revenue before filing.
$100,000 Salary in Kentucky — Full Tax Breakdown
| Category | Annual | Monthly |
|---|---|---|
| Gross Salary | $100,000 | $8,333 |
| Federal Tax | −$13,170 | −$1,098 |
| FICA (SS + Medicare) | −$0.00 | −$0.00 |
| Kentucky State Tax | −$3,869 | −$322 |
| Take-Home Pay | $75,311 | $6,276 |
Assumes single filing status, standard deduction, no 401(k) or HSA contributions. 2026 tax year.
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- 1.Kentucky has a flat 4% state income tax — recently reduced from 5% (2022) and 4.5% (2023) under HB 8's revenue-trigger framework. On track for further cuts toward 3.5% if revenue benchmarks hold.
- 2.Local occupational license taxes are the wrinkle. Louisville/Jefferson County 2.2%, Lexington-Fayette 2.25%, Boone County 0.8%, Kenton County (Covington) 0.7097%, Florence 2.0%. Levied on wages earned in the jurisdiction — applies to BOTH residents and commuters working there.
- 3.Standard deduction is $3,160 single — modest by state standards but mitigates the flat rate at the low end.
- 4.Reciprocity with IL, IN, MI, OH, VA, WV, WI. KY residents working in those states owe only KY tax. Big deal for Cincinnati/Northern Kentucky and Evansville/Henderson cross-border workers.
- 5.Property tax averages ~0.83% — among the lower rates in the country. No state estate or inheritance tax. 6% state sales tax with no local add-on (one of the simpler sales tax structures).
Why you can trust these numbers
Numbers reflect 2026 IRS federal brackets, FICA caps, and the current Kentucky Department of Revenue 4% flat rate plus the $3,160 standard deduction. The calculator at the top reflects this. Local occupational taxes (Louisville 2.2%, Lexington 2.25%, etc.) are NOT modeled by the calculator — add them manually if you live or work in a jurisdiction that levies them.
Sources: federal brackets + standard deduction from IRS Rev. Proc. 2025-32; state brackets verified against the Tax Foundation 2026 State Income Tax Rates compilation and the official Form 740 Individual Income Tax Forms (KY Department of Revenue).
Flat 4% — but the local occupational tax is what you'll feel
Kentucky's flat state rate has been on a phase-down: 5% (2022) → 4.5% (2023) → 4% (2024-present). HB 8 set up a revenue-trigger framework: if state revenue exceeds specific benchmarks year-over-year, the legislature can cut another 0.5%. The trajectory could reach 3.5% by ~2027–2028 in normal economic conditions, then 3% beyond.
The state rate is only half the story. Most KY workers also owe a local occupational license tax — a city or county tax on wages earned in that jurisdiction. Major rates: Louisville/Jefferson County 2.2% (1.45% to Louisville Metro + 0.75% to school district = 2.2% combined for most Louisville workers), Lexington-Fayette 2.25%, Northern Kentucky counties 0.7–1.5%, Florence 2.0%, Bowling Green 1.85%. The tax is withheld by employers and applies to BOTH residents AND non-residents working in the jurisdiction. No reciprocity with these — a Lexington-area resident commuting to Louisville pays Louisville's 2.2% on top of state tax.
What you'll actually pay — two real-life scenarios
Two scenarios to anchor the math.
Illustrative — single filer unless noted, KY standard deduction $3,160, full-year KY residency, W-2 income. Local occupational tax shown separately because the calculator doesn't model it. Two-earner MFJ households pay more FICA than the calculator shows. Ballparks, not invoices.
Scenario 1: Louisville healthcare professional, $85,000
| Federal income tax | ~$10,400 |
| Kentucky state income tax (4% × $66,840 taxable) | ~$2,675 |
| Louisville Metro occupational tax (2.2% × $85K) | ~$1,870 |
| FICA (Social Security + Medicare) | ~$6,500 |
| Total taxes | ~$21,445 |
| Annual take-home | ~$63,555 |
| Effective state + local rate | ~5.3% |
Louisville Norton Healthcare / UofL Health / Baptist Health worker. Same role in IN (just across the river in New Albany or Jeffersonville): IN state 2.95% + Clark County ~1% = ~3.95% combined, no Louisville Metro tax — saves about $1,500/year. This is exactly the math driving Southern Indiana's growth as a Louisville bedroom community. Under IL/IN/KY/OH reciprocity, IN residents working in Louisville file IN tax instead of KY state — but the Louisville Metro 2.2% still applies to all workdays in the city.
Scenario 2: Northern Kentucky tech worker, $130,000
| Federal income tax | ~$20,200 |
| Kentucky state income tax (4% × $111,840 taxable) | ~$4,475 |
| Boone County occupational tax (0.8% × $130K) | ~$1,040 |
| FICA | ~$9,950 |
| Total taxes | ~$35,665 |
| Annual take-home | ~$94,335 |
| Effective state + local rate | ~4.2% |
Northern Kentucky tech / corporate worker — Fidelity, GE, Citi, Amazon CVG, Pure Romance, Kroger HQ-adjacent. Boone, Kenton, and Campbell County rates are dramatically lower than Louisville's 2.2% — choosing Florence, Erlanger, or Fort Mitchell over Cincinnati saves real money. Under KY-OH reciprocity, KY residents working in Cincinnati owe only KY tax (no Ohio state) — but Cincinnati's 1.8% city earnings tax still applies to OH workdays. The reciprocity-plus-low-county-rate combo is why Northern Kentucky has outgrown Cincinnati on the residential side for two decades.
Property tax + the local occupational tax map
KY property tax effective rates by county (approximate, primary residence): Jefferson (Louisville) 0.90–1.05%, Fayette (Lexington) 0.85–1.00%, Boone (Florence/Burlington) 0.85–0.95%, Kenton (Covington/Erlanger) 0.95–1.10%, Campbell (Newport) 0.95–1.10%, Warren (Bowling Green) 0.75–0.90%, Daviess (Owensboro) 0.85–0.95%. Statewide average ~0.83% — among the lower rates nationally.
Local occupational tax map: only specific cities and counties levy these. Louisville/Jefferson County (2.2% combined including school), Lexington-Fayette (2.25%), Bowling Green (1.85%), Florence (2.0%), Owensboro (1.78%), and most Northern Kentucky counties (0.7–1.5%). Many smaller KY counties have no occupational tax at all. This is a meaningful residential-decision factor — a Boone County resident working remotely for a Lexington employer pays only the 0.8% Boone rate, not Lexington's 2.25%. Verify your jurisdiction at filing.
Things financially comfortable Kentuckians actually do
- Max your 401(k) ($24,500 in 2026) — pre-tax for federal AND KY (state + local).
- Max your HSA if eligible — pre-tax for federal AND KY.
- Backdoor Roth IRA — fully legal.
- Mega backdoor Roth if your employer's 401(k) plan allows.
- KY Saves 529 — KY does NOT offer a state-tax deduction for 529 contributions (one of the few states without one). Use any state's 529 plan based on fees and investment options, not state-tax incentives.
- Reciprocity — KY has reciprocal tax agreements with IL, IN, MI, OH, VA, WV, WI. KY residents working in those states file the appropriate non-residence certificate (e.g., OH Form IT-4NR for Cincinnati commuters). Saves filing two state returns.
- Choose your jurisdiction wisely — the local occupational tax differential matters more than most people realize. A Lexington-area resident working remotely for a Louisville employer (taxed only on workdays physically in Louisville) saves substantial money over an in-office Louisville worker. Northern Kentucky's 0.7–1.5% rates vs Louisville's 2.2% / Lexington's 2.25% drive measurable residential demand.
- Pension exemption — KY exempts up to $31,110 of pension/IRA/401(k) distributions per filer (2026). Generous for retirees with moderate retirement income.
Real questions people actually ask
Q: Will Kentucky keep cutting its income tax rate?
Likely. HB 8 (2022) set up a revenue-trigger framework: if state General Fund revenue grows by at least 1% above the prior-year cap and the End-of-Year Budget Reserve Trust Fund balance is at least 10% of General Fund receipts, the legislature can cut the rate by 0.5%. Both 4.5% (2023) and 4.0% (2024) cuts were enacted under this framework. The next potential cut to 3.5% is on the table for 2027–2028. Each cut requires meeting the prior-year revenue trigger.
Q: Does Kentucky tax retirement income?
Partially. SS benefits exempt. KY exempts up to $31,110 per filer of pension, IRA, 401(k), and other qualified retirement income (2026 amount). Above that threshold, retirement income is taxed at the 4% flat rate. Public pensions (federal civil service, military, KERS, KTRS) also covered by the $31,110 exemption. Net effect: KY is moderately retirement-friendly — the exclusion covers most middle-income retirees fully, with high-pension retirees paying flat 4% on the excess.
Q: I live in Cincinnati but work in Northern Kentucky. What do I owe?
Under KY-OH reciprocity, OH residents working in KY owe only OH tax on those wages (file KY Form 42A809 with KY employer). Cincinnati's 1.8% city earnings tax does NOT apply because you're not working in Cincinnati. The Northern Kentucky county occupational tax (0.7–1.5% depending on jurisdiction) DOES apply because it's a tax on the location of work, not residency. Net effect: you pay OH state (3.5%) + Cincinnati city (1.8% only on OH workdays — i.e., zero in this scenario) + KY county occupational tax (~1% Boone). Reciprocity saves you the KY state 4%, which is the bigger benefit.
Q: How does the local occupational tax interact with the state rate?
The two stack — they are not consolidated. Louisville Metro residents pay both KY state (4%) AND Louisville/Jefferson 2.2% on their wages. The local occupational tax is withheld by the employer and remitted directly to the city/county; it does NOT credit against state tax. This is unlike some states where local tax credits against state liability. So a typical Louisville W-2 employee earning $80K pays 4% × $76,840 = ~$3,074 KY state + 2.2% × $80K = ~$1,760 Louisville Metro = ~$4,834 combined state + local on wages.
Our honest opinion (which is just an opinion)
Kentucky is a moderate-tax state with a competitive flat rate that's still falling, broad reciprocity with neighbors, and the meaningful local occupational tax wrinkle. The combined burden for typical professionals depends heavily on which city or county they live AND work in. Louisville and Lexington are noticeably more expensive tax-wise than Northern Kentucky or smaller cities.
The case for Kentucky:
- Flat state rate at 4% with downward trajectory toward 3.5% or lower
- Broad reciprocity with 7 neighboring states (best in the South)
- Pension/retirement exclusion of $31,110 per filer
- Property tax meaningfully below national average
- Cost of living significantly cheaper than peer states
- Diverse economy: Toyota, Ford, UPS Worldport, GE Appliances, Humana, bourbon
- No state estate or inheritance tax
- 6% state sales tax with no local add-on (simpler than most states)
The case against:
- Local occupational tax adds 0.7–2.25% on top of state rate (no credit)
- Louisville and Lexington occupational rates are punitive (2.2–2.25%)
- No state-tax deduction for 529 contributions
- Modest standard deduction ($3,160) compared to federal
- Public school funding varies enormously by district
Honest take: KY is competitive — especially for Northern Kentucky and rural-county professionals where the local occupational tax is low or zero. For Louisville and Lexington workers: the 2.2–2.25% local tax is the real cost, often higher than the state tax itself. For retirees: the $31,110 exclusion makes KY moderately retirement-friendly, and the property tax is friendly. For Cincinnati commuters living in Northern Kentucky: the reciprocity-plus-low-county-rate combo is a quietly excellent setup.
What now
Run your numbers in the calculator above. Add your local occupational tax (typically 0.7–2.25%) — the calculator only models the state rate. If you live in or near a high-rate city (Louisville, Lexington), check whether your specific neighborhood is inside or outside the city limits — the difference matters. If you commute across state lines, file the right reciprocity certificate with your employer to avoid double-withholding.
Sources & further reading
- →Kentucky Department of Revenue — official tax tables and forms
- →Louisville Metro Revenue Commission — occupational license tax
- →Lexington-Fayette Urban County Government — occupational license fee
- →Tax Foundation — annual state-and-local tax burden rankings
- →U.S. Bureau of Labor Statistics — Occupational Employment and Wage Statistics
- →IRS — federal brackets, contribution limits, Publication 17
A few honest notes
- Not personal tax, legal, or financial advice. Verify with a licensed CPA, EA, or tax attorney before making meaningful decisions.
- Tax law changes. This guide reflects 2026 IRS schedules and current KY Department of Revenue rules. The flat-tax phase-down is contingent on annual revenue triggers.
- Local occupational tax rates and rules are administered by individual cities and counties — verify your specific jurisdiction's current rate at filing.
- Property tax estimates vary by county and city — check your local PVA (Property Valuation Administrator) website.
- The numbers are illustrative — scenarios don't include every credit, deduction, or wrinkle that might apply to you.
- The calculator at the top doesn't model local occupational tax — add it manually if applicable.
- No client relationship is created by reading this page.
Last updated April 2026 with 2026 IRS schedules and current KY Department of Revenue guidance.
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