Do I need a state sales tax permit to sell online to Kentucky customers?

Yes, sellers with nexus in Kentucky must register for a sales and use tax permit with the Kentucky Department of Revenue if they have taxable sales to Kentucky customers.

Do I also need a Metro Louisville business license?

Possibly; businesses operating in Louisville may require an occupational or business registration with Louisville Metro Revenue depending on location and activity.

How soon must I register?

Register before you begin retail sales or collecting sales tax; specific submission deadlines are described on the state and Metro registration pages.

Louisville Sales Tax Permit Registration Guide

Taxation and Finance Kentucky 4 Minutes Read · published February 08, 2026

In Louisville, Kentucky, businesses that sell taxable goods or services must register for a state sales and use tax permit and may also need a local business or occupational license to operate within Metro Louisville. This guide explains the official registration paths, which departments enforce compliance, typical steps to apply, how to pay and file returns, and where to get help. Follow the sequence below to make sure your retail, online, or service activity is properly registered and to avoid liability for uncollected tax.

What you must register

Most sellers with nexus in Kentucky must obtain a Kentucky sales and use tax permit. In addition, Metro Louisville requires businesses operating within city limits to register for local business licensing or occupational tax when applicable. Determine whether you need both state and local registration before opening or selling taxable items in Louisville.

Register for the state sales and use tax permit through the Kentucky Department of Revenue online registration portal^[1] and check Metro Louisville requirements with Louisville Metro Revenue for occupational or business licensing^[2].

How to register

Gather your business details: legal name, FEIN or SSN, business address in Louisville, NAICS code, estimated monthly taxable sales.
Create an account on the Kentucky DOR registration portal and complete the sales and use tax registration.
If required by Metro Louisville, apply for an occupational license or business registration with Louisville Metro Revenue.
Note registration timelines: apply before you begin collecting tax; file returns and remit according to assigned reporting frequency.

Penalties & Enforcement

Enforcement is split: the Kentucky Department of Revenue enforces state sales and use tax collection and remittance, while Louisville Metro Revenue enforces local occupational or business licensing requirements where applicable. For state tax compliance and penalties see the Kentucky Department of Revenue guidance noted above^[1]. For Metro licensing enforcement, contact Louisville Metro Revenue for local penalties and compliance pathways^[2].

Monetary fines and penalties: not specified on the cited page for local amounts; see the Kentucky DOR page for state penalty descriptions and calculation methods^[1].
Escalation: information on first, repeat, or continuing offence escalation is not specified on the cited Metro page; consult the Kentucky DOR page for state escalation rules where published^[1].
Non-monetary sanctions: administrative holds, license suspension or revocation, and referral to courts are enforcement options described generally; specific procedures and timelines are not specified on the cited Metro page^[2].
Enforcer and complaint pathways: Kentucky DOR handles state sales tax audits and collections; Louisville Metro Revenue handles local licensing compliance. Use the contact pages in Resources to file complaints or request inspections.

If a fine or enforcement action is proposed, act quickly to request an administrative review within the time limits set by the enforcing office.

Applications & Forms

Kentucky sales and use tax registration: complete online via the Kentucky Department of Revenue registration portal; specific form name is provided on the state site^[1].
Louisville Metro occupational/business license: application and submission instructions are available from Louisville Metro Revenue; fees and deadlines are listed or described on the Metro site^[2].
Fees: specific fee amounts for Metro occupational licenses or local registration are not specified on the cited Metro page; see the Metro Revenue resources for current fee tables^[2].

Action steps

Apply for a Kentucky sales and use tax permit online before you collect tax.
Register with Louisville Metro Revenue if your business location or activity requires a local occupational or business license.
Set up accounting to track taxable sales and remit returns on schedule.
If you receive a notice, contact the enforcing department immediately and follow appeal instructions.

FAQ

Do I need a state sales tax permit to sell online to Kentucky customers?: Yes, sellers with nexus in Kentucky must register for a sales and use tax permit with the Kentucky Department of Revenue if they have taxable sales to Kentucky customers.
Do I also need a Metro Louisville business license?: Possibly; businesses operating in Louisville may require an occupational or business registration with Louisville Metro Revenue depending on location and activity.
How soon must I register?: Register before you begin retail sales or collecting sales tax; specific submission deadlines are described on the state and Metro registration pages.

How-To

Confirm your business legal name and FEIN or SSN.
Create an account and complete the Kentucky Department of Revenue online registration for sales and use tax^[1].
If operating in Louisville, complete the Louisville Metro business/occupational license application process^[2].
Set up reporting frequency with the state (monthly/quarterly/annual) and record filing dates.
Keep contact details current with both agencies to receive notices and avoid penalties.

Key Takeaways

Obtain a Kentucky sales and use tax permit before collecting tax.
Check Metro Louisville occupational license rules for local registration requirements.