A Kentucky LLC’s tax filing requirements start with the state’s Limited Liability Entity Tax (a $175 minimum every year), continue through pass-through income tax on the owners at Kentucky’s 4% flat rate, and can include nonresident withholding, sales and use tax, employer withholding, unemployment insurance, city and county occupational license taxes, and a $15 Annual Report to the Secretary of State by June 30. Which of these apply depends on how the LLC is taxed federally, where its owners live, whether it has employees, and what it sells. Missing any of them carries penalties that compound quickly.
The Limited Liability Entity Tax
Kentucky charges every LLC an entity-level tax simply for existing with liability protection, separate from any income tax the owners pay on profits. This is the Limited Liability Entity Tax, or LLET, and the floor is $175 a year no matter how little the business earns.
How the LLET Is Calculated
The LLET runs two parallel calculations, and the LLC pays whichever is lower. The first multiplies Kentucky gross receipts (Kentucky sales before subtracting cost of goods sold) by 0.095%. The second multiplies Kentucky gross profits (gross receipts minus cost of goods sold) by 0.75%. Whichever produces the smaller number is what you owe, but never less than $175.1Kentucky Legislative Research Commission. Kentucky Revised Statutes 141.0401
Those full rates only kick in when the LLC’s total gross receipts or gross profits from all sources exceed $6 million. Between $3 million and $6 million, a sliding-scale formula phases the tax in. If both total gross receipts and total gross profits are $3 million or less, the LLC just pays the $175 minimum.2Kentucky Department of Revenue. Kentucky Corporation Income and Limited Liability Entity Tax – Section: Calculating KY Limited Liability Entity Tax (LLET)
Most small Kentucky LLCs pay the $175 minimum. The math only gets complicated after crossing the $3 million line.
Filing the LLET
An LLC classified as a corporation for federal tax purposes files the LLET on Kentucky Form 720. A pass-through LLC (taxed as a partnership or a disregarded entity) reports LLET on a schedule attached to the owners’ returns. The return is due on the same date as the entity’s federal return, including extensions.3Kentucky Department of Revenue. Kentucky Corporation Income Tax and LLET Return Instructions
When a pass-through LLC pays LLET, individual owners can take a credit against their Kentucky income tax, but only against the portion of their tax attributable to the LLC’s income. The credit is computed after subtracting the $175 minimum, so that minimum is effectively a non-creditable cost of doing business in Kentucky.4Kentucky Department of Revenue. Tax Credits – Section: Nonrefundable Limited Liability Entity Tax Credit
Income Tax on the Owners
Most LLCs are pass-through entities, so the LLC itself doesn’t pay income tax on profits. Each owner reports their share of the LLC’s net income on their own Kentucky return. Resident owners file Form 740 and pay Kentucky’s flat 4% rate on total taxable income, including the business earnings shown on the federal Schedule K-1.5Kentucky Department of Revenue. Kentucky Individual Income Tax
Nonresident Withholding
If any owner lives outside Kentucky, the LLC has to withhold Kentucky income tax on that owner’s share of income, whether the LLC actually distributed the money or not. The withholding rate is 4%.6Kentucky Department of Revenue. Kentucky Nonresident Withholding Tax
The LLC reports and remits the withholding on Form 740NP-WH, filing a PTE-WH schedule for each nonresident partner or member. The return is due by the 15th day of the fourth month after the tax year ends, and quarterly estimated payments are required when the anticipated withholding is large enough.6Kentucky Department of Revenue. Kentucky Nonresident Withholding Tax
The nonresident owner then claims the withheld amount as a credit on Form 740-NP. If the LLC fails to withhold, the penalties and interest fall on the LLC, not just the owner.
The Optional Pass-Through Entity Tax
Starting in 2023, Kentucky lets pass-through entities elect to pay income tax at the entity level instead of pushing it all to the owners. The election was created by House Bill 5, and its purpose is to work around the $10,000 federal cap on state and local tax deductions: when the LLC pays the tax, it’s a business expense rather than an individual SALT deduction.7Kentucky Department of Revenue. Kentucky Form PTET Instructions
The entity-level rate is 4%, applied to the LLC’s ordinary income plus separately stated items. The LLC files Form 740-PTET and makes the election each year on Form 740-PTET-ELECT. Once made, the election is irrevocable for that year and binds every owner. The tax is due on the entity’s annual return date, without regard to extensions.7Kentucky Department of Revenue. Kentucky Form PTET Instructions
Owners then claim a refundable credit for their share of the entity-level tax on Form 740 or 740-NP, using Form PTET-CR.8Kentucky Department of Revenue. 2025 Kentucky Individual Income Tax Forms Instructions – Section: REFUNDABLE PASS-THROUGH ENTITY TAX CREDIT
The election helps owners who itemize federally and are running into the SALT cap. For owners who take the standard deduction, the benefit disappears. Because the choice can’t be undone once filed, run it past a tax advisor first.
Sales, Use, and Employer Taxes
Sales and Use Tax
An LLC selling taxable goods or certain services in Kentucky has to register with the Department of Revenue and collect the statewide 6% sales tax. Filing is monthly, quarterly, or annually depending on volume, on Form 51A102, with returns and payments due by the 20th of the month following the reporting period.
Use tax picks up the same 6% rate on tangible property bought out of state without sales tax. The LLC self-reports and pays it.
Employer Withholding
An LLC with employees registers with the Department of Revenue and withholds Kentucky income tax from wages, using each employee’s Form K-4 to set exemptions. Kentucky’s flat 4% rate keeps the calculation straightforward.9Kentucky Department of Revenue. Kentucky Withholding Certificate – Form K-4
Withheld amounts are remitted monthly, semimonthly, or quarterly depending on the total, and at year-end the LLC files Form K-3, the annual reconciliation, by January 31.10Kentucky Department of Revenue. Kentucky Form K-3 Employer’s Return of Income Tax Withheld
Unemployment Insurance
Employers also pay state unemployment insurance to the Kentucky Office of Unemployment Insurance, calculated as a percentage of each employee’s wages up to an annual taxable wage base. New employers start at a fixed initial rate that later adjusts. UI is reported and paid quarterly.
Local Occupational License Taxes
This is the line item new owners often miss. Most Kentucky cities and many counties impose their own occupational license tax on net profits, gross receipts, or both. Rates typically run from 0.50% to 2.5%, with a median around 1%.
Local taxes stack on top of every state obligation. An LLC operating in Louisville, Lexington, or most other municipalities has to register locally, file a separate occupational license return, and pay the local tax. Rates, forms, and deadlines vary by jurisdiction, and an LLC doing business across county lines can owe in each one. Confirm the requirement with the specific city or county where you operate; there is no central Kentucky source.
The Annual Report
Every Kentucky LLC has to file an Annual Report with the Secretary of State by June 30, starting the year after formation. The filing fee is $15.11Kentucky Secretary of State. Annual Reports
The report keeps the state’s records current on the principal office address, member or manager names, and registered agent. Keeping the registered agent accurate matters because that’s the address the state and the courts use for official notices.
Miss June 30 and the LLC heads toward administrative dissolution. A dissolved LLC loses good standing and can be blocked from enforcing contracts, filing suit, or doing business in Kentucky. Reinstatement means catching up every missed annual report, paying the $15 fee for each, and paying a $100 reinstatement penalty.12Kentucky Secretary of State. Fees
Penalties and Interest for Late Filing or Payment
Kentucky’s penalty structure escalates fast and stacks. The Department of Revenue applies these tiers automatically:
- Filing a return late with the return itself submitted: 2% of the total tax due for each 30 days (or partial 30-day period) the return is late, capped at 20%. Minimum $10.
- Failing to file at all: 5% of the estimated tax due for each 30-day period the return goes unfiled, capped at 50%. Minimum $100.
- Paying late: 2% of the unpaid tax for each 30-day period, capped at 20%. Minimum $10.
- Failing to withhold or collect tax the LLC was required to withhold or collect: 2% for each 30-day period, capped at 20%.
Penalties stack. An LLC that files late and pays late gets hit with both. On top of penalties, unpaid tax accrues interest at 9% annually for the 2026 calendar year.13Kentucky Department of Revenue. Penalties, Interest and Fees
The gap between filing a return late (2% per month, 20% cap) and not filing at all (5% per month, 50% cap) is the most important number here. If the LLC can’t pay in full, file the return on time and pay what you can. It costs far less than ignoring the deadline.