Flat 4% tax rate on all income (changed from progressive 2-5% in 2022)
Kentucky has a 4% flat income tax on all income - a simple, competitive rate nationally. At $100,000 income, Kentucky residents pay $4,000 state tax (4% effective rate) plus $12,908 federal tax. Kentucky switched from a progressive 2-5% system to a 4% flat tax in 2022 (HB 8) to simplify the tax code and compete with Tennessee (0%) for business relocation. The 4% rate is lower than most neighboring states except Tennessee.
Kentucky has a 4% flat income tax on all income, applying the same rate to everyone regardless of income level. This makes Kentucky's tax structure simple and competitive. At $100K income, you pay exactly $4,000 state tax (4% effective rate) - lower than Ohio (2.75-3.5%), Indiana (3.05%), West Virginia (3-6.5%), and Virginia (2-5.75%), though higher than Tennessee (0%).
Major 2022 tax reform - switching to flat tax: Kentucky passed HB 8 in 2022, eliminating the old progressive system (2-5% across 6 brackets) and replacing it with a 4% flat tax effective January 2023. The legislature's goal was to simplify tax filing and compete with Tennessee's 0% income tax for business relocations. Originally the bill planned to phase down to 3.5% by 2026, but revenue triggers haven't been met, so the rate remains 4% in 2026. Business groups support further cuts; education advocates oppose them (fearing school funding cuts).
How it compares regionally:
The tradeoff - bourbon tourism subsidizes budget: Kentucky's 4% income tax generates moderate revenue ($5.2B projected 2026), but the state benefits from bourbon tourism and excise taxes. Kentucky produces 95% of the world's bourbon (Jim Beam, Maker's Mark, Woodford Reserve, Buffalo Trace, Four Roses), generating $9B annual economic impact and $285M excise tax revenue. Combined with horse racing (Kentucky Derby, Keeneland), tobacco settlement funds, and coal severance taxes (declining), Kentucky funds services at moderate levels. KY ranks 38th in K-12 education spending, 41st in healthcare quality, 32nd in infrastructure - middle-tier results for moderate taxes.
Source: Kentucky Department of Revenue - Individual Income Tax
Here's what Kentucky residents actually pay at different income levels (2026, single filer, standard deduction):
| Annual Income | Federal Tax | State Tax | Total Tax | Take-Home Pay | Effective Rate |
|---|---|---|---|---|---|
| $50,000 | $4,166 | $2,000 | $6,166 | $43,834 | 12.3% |
| $75,000 | $8,340 | $3,000 | $11,340 | $63,660 | 15.1% |
| $100,000 | $12,908 | $4,000 | $16,908 | $83,092 | 16.9% |
| $150,000 | $25,218 | $6,000 | $31,218 | $118,782 | 20.8% |
| $250,000 | $54,094 | $10,000 | $64,094 | $185,906 | 25.6% |
Note: Includes federal and state income tax only. Does not include FICA (Social Security/Medicare), which adds 7.65% for employees.
Key takeaway: At $100K, Kentucky takes $4,000 in state tax alone.
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Planning a move to or from Kentucky? Multi-state filing is complex. Get matched with a CPA who handles Kentucky taxes and multi-state returns. Virtual meetings, fixed pricing.
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Get Matched With a CPA →Migration Trends: According to U.S. Census Bureau data (2021-2022), Kentucky experienced net immigration of 3,650 residents. Top origin states were:
Outflow: Kentucky lost residents to:
Why people move to Kentucky: Affordable housing (Louisville $280K, Lexington $310K vs Nashville $450K, Cincinnati $335K), bourbon/horse culture, 4 seasons, friendly people, moderate 4% flat tax, bourbon tourism jobs ($60-80K at distilleries/tourism), automotive jobs (Toyota Georgetown pays $70K+, Ford Louisville), UPS Worldport logistics hub (Louisville - 20K+ jobs).
Why people leave Kentucky: Lower salaries (KY median $60K vs TN $64K, OH $65K, IN $67K), brain drain (U of Louisville, U of Kentucky grads leave for Nashville/Cincinnati/Chicago higher-wage jobs), limited tech sector, Appalachian poverty (eastern KY has 25%+ poverty rates), opioid crisis.
Tax considerations if moving here: KY residency = 183+ days in state OR domicile test. 4% flat state tax on all income (simple: income × 0.04). No local income tax in most of KY (exception: Louisville, Lexington, Covington have local occupational taxes 1-2.25% on wages - verify with employer). Sales tax 6% state flat (no local add-on - simple). Property tax 0.86% average ($2,408/year on $280K Louisville home). Social Security not taxed after age 59 (Kentucky exempts SS for retirees 59+). Retirement income partially exempt (up to $31,110 exempt for 65+ in 2026).
| State | Tax Rate | Tax on $100K Income | Difference from Kentucky |
|---|---|---|---|
| Kentucky | 4% flat | $4,000 | Baseline |
| Tennessee | 0% | $0 | -$4,000 (less tax) |
| Indiana | 3.05% flat | $3,050 | -$950 (less tax) |
| Ohio | 2.75-3.5% | $3,250 | -$750 (less tax) |
| West Virginia | 3-6.5% | $4,500 | +$500 (more tax) |
Key insight: Kentucky's 4% flat tax is middle-tier regionally. At $100K income, KY is $750-$950 more expensive than IN/OH but $500 cheaper than WV and $4,000 more expensive than TN (0%). However, KY's housing costs are lower: Louisville $280K vs Nashville $450K, Cincinnati $335K, Indianapolis $315K.
Total tax burden at $100K + median home: Kentucky (Louisville): $4,000 income + $2,408 property (0.86% × $280K) + $3,000 sales (6%) = $9,408 total (9.4%). Tennessee (Nashville): $0 income + $4,500 property (1% × $450K) + $4,725 sales (9.45%) = $9,225 (9.2%). Indiana (Indianapolis): $3,050 income + $3,150 property (1% × $315K) + $3,500 sales (7%) = $9,700 (9.7%). Result: Kentucky's total burden (9.4%) is competitive - higher than TN (9.2%) but lower than IN (9.7%). Housing affordability in Louisville ($280K vs $450K Nashville) matters more than tax differences.
The Tennessee question - Louisville vs Nashville: At $100K: TN saves $4,000 income tax BUT pays $2,092 more property tax + $1,725 more sales tax = net savings only $183/year. Nashville housing $170K more expensive ($450K vs $280K). For homeowners, Kentucky wins due to cheaper housing. Tennessee wins for high earners $200K+ where $8,000 income tax savings justifies higher property tax.
For middle-income homeowners ($75-150K), Kentucky often wins due to cheaper housing despite 4% income tax. At $100K: TN saves $4,000 income tax BUT Louisville housing $280K vs Nashville $450K ($170K cheaper) + TN property tax $2,092 higher ($4,500 vs $2,408) = Kentucky saves $170K upfront on housing and only $183/year more in total taxes. Tennessee wins for: high earners $200K+ (save $8,000 income tax), renters (avoid property tax), professionals prioritizing Nashville job market (pays 20% more). Kentucky wins for: middle-class homeowners, bourbon/automotive workers, people seeking affordability + 4 seasons.
Kentucky partially exempts retirement income. Social Security: Exempt for taxpayers age 59+ (earlier exemption than most states). Under 59: SS taxed at 4%. Pensions/401k/IRA: Taxpayers 65+ can exclude up to $31,110 (2026 amount) of retirement income. Example: Age 66 with $30K SS + $50K pension = $80K total. SS exempt (over 59), pension taxed on $18,890 (after $31,110 exemption) = $756 KY tax (0.95% effective). Kentucky is moderately tax-friendly for retirees - SS exempt at 59+, generous pension exemption ($31,110), but higher property tax (0.86%) than some states.
Louisville, Lexington, and Covington levy local occupational taxes (payroll taxes) on wages earned in city limits. Louisville: 2.25% (1.45% city + 0.8% county), Lexington: 2.25%, Covington: 1%. This is IN ADDITION to 4% state tax. At $100K working in Louisville: $4,000 state + $2,250 local = $6,250 total income tax (6.25%). If you live in suburbs (Jeffersontown, St. Matthews) but work in Louisville, you still pay Louisville occupational tax. Only escape: work remotely from outside city limits. Verify with employer if occupational tax withheld.
Possibly, but uncertain. Kentucky's 2022 HB 8 originally planned to phase the rate down from 5% to 4.5%, then 4%, then 3.5% by 2026, triggered by revenue growth benchmarks. The state hit 4% in 2023 but hasn't met triggers for further cuts. As of 2026, rate remains 4%. Business groups (Kentucky Chamber of Commerce) push for cuts to compete with Tennessee (0%). Education advocates oppose cuts, warning of school funding shortfalls (KY ranks 38th in K-12 spending). Political consensus: rate unlikely to drop below 4% without strong revenue growth or budget cuts.
Kentucky has 9.4% total state/local tax burden at $100K income - competitive regionally. At $100K with $280K Louisville home + $50K annual spending: $4,000 income (4% flat) + $2,408 property (0.86%) + $3,000 sales (6% flat statewide) = $9,408 total (9.4% of income). This beats Indiana (9.7%), ties with Tennessee (9.2% despite 0% income tax), and beats Ohio/Illinois (10%+). Add Louisville occupational tax 2.25%: total becomes 11.65% for Louisville city workers (higher burden). Key: Kentucky's 6% sales tax is moderate (lower than TN 9.45%, AL 10%, LA 9.95%), and 0.86% property tax is reasonable. Structure favors homeowners in suburbs over city workers paying occupational tax.
How we calculate: Kentucky uses a 4% flat tax on all Kentucky taxable income (federal AGI minus Kentucky standard deduction of $3,160 for single filers in 2026). Our calculator applies the 4% rate to taxable income and adds federal income tax using official 2026 IRS brackets. Effective tax rates are calculated by dividing total tax by gross income. For comparison purposes, we show neighboring states' tax calculations at the same income levels using their official 2026 tax brackets and rates.
Data sources: Kentucky Department of Revenue: revenue.ky.gov - Official 2026 tax rate (4% flat), standard deduction ($3,160 single), KY taxable income rules, HB 8 (2022) tax reform history. IRS: Federal tax brackets 2026. U.S. Census Bureau: Migration data (2021-2022), median income ($60,000 KY). Zillow: Median homes (Louisville $280K, Lexington $310K, January 2026). Kentucky Distillers Association: Bourbon economic impact ($9B annual, $285M excise tax).
Verification: Kentucky's 4% flat tax verified against Kentucky Revised Statutes §141.020 and KY Department of Revenue 2026 guidance (January 2026). HB 8 (2022) tax reform verified against legislative text and revenue trigger analysis. Federal brackets verified against IRS Revenue Procedure 2025-58. Migration data from IRS SOI via Census Bureau. Property/sales tax from KY Department of Revenue 2025 report. Housing data from Zillow (January 2026).
Limitations: Assumes single filer, W-2 income only, standard deduction, KY full-year residency. Does not include: local occupational taxes (Louisville 2.25%, Lexington 2.25%, Covington 1%), federal credits (EITC, child tax credit), part-year/nonresident calculations, retirement income exemptions (SS exempt 59+, $31,110 pension exemption 65+), property tax variations by county (0.5-1.2% effective rates). Consult licensed KY CPA for: multi-state income, retirement income optimization, local occupational tax planning, business income (C-corps 4-5%, pass-throughs 4% individual rate).
These calculations are estimates for informational purposes only and reflect 2026 Kentucky tax law (4% flat rate on KY taxable income). Tax situations vary based on filing status, deductions, credits, income types, and residency status. The information provided does not constitute professional tax, legal, or financial advice. Kentucky switched from progressive 2-5% to flat 4% in 2022 (HB 8); further rate reductions possible but uncertain (dependent on revenue triggers). Does not include local occupational taxes (Louisville, Lexington, Covington levy 1-2.25% on wages earned in city limits), property tax variations by county (0.5-1.2%), or retirement income exemptions (SS exempt 59+, $31,110 pension exemption 65+). Federal tax laws change annually. Always verify current rates with Kentucky Department of Revenue and IRS, and consult a licensed tax professional for advice specific to your situation.
Last Updated: March 2026
Verified By: CountryTaxCalc Research Team
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Last Updated: March 2026