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How to Get a Sales and Use Tax Permit in Kentucky

Jun 25, 2025 | Blog Posts, Compliance, E-Commerce, Sales Tax, Tax Compliance

To operate legally and stay compliant, every seller must understand how to get a Kentucky sales and use tax permit—and this article walks you through exactly that. Whether you’re launching an e-commerce store, opening a physical shop, or expanding your digital services into Kentucky, this permit is non-negotiable. But navigating government portals and state tax rules isn’t always simple. That’s where Hands Off Sales Tax (HOST) comes in. 

As a trusted compliance partner for thousands of businesses, HOST takes the guesswork out of sales tax registration, filings, and ongoing support. In this guide, we’ll break down everything you need to apply, file correctly, and stay audit-proof.

Who Needs a Kentucky Sales & Use Tax Permit

Before you dive into the application process, it’s crucial to know who must hold a Kentucky sales and use tax permit. Lacking the right permit can result in penalties, audits, or missed tax obligations—so let’s clarify now.

Clear Nexus Rules

Kentucky imposes a permit requirement based on either physical presence or economic activity:

  • Economic Nexus: Remote sellers must register if they exceed 200 separate sales into Kentucky or accumulate over $100,000 in gross receipts from such sales within the current or previous calendar year—per HB 487 and Kentucky DOR guidelines.
  • Physical Nexus: Having property, employees, inventory, offices, trade-show presence of 15+ days, or software usage in-state also creates nexus and mandates registration.

Businesses That Need the Permit

Any merchant that meets nexus requirements should register. This includes:

  • Retailers selling tangible goods
  • Digital product or SaaS vendors
  • Property or equipment rental providers

If you fall into any of these categories and cross nexus thresholds, you’re responsible for collecting and remitting the tax.

Exceptions & Carve-Outs

Not every sale triggers a tax permit:

  • Grocery items and most prescription drugs are exempt from Kentucky sales tax—selling them doesn’t require a permit, unless other activities trigger nexus.
  • Resale transactions don’t count as taxable sales when supported by valid resale certificates.

As you review your sales channels and operations, HOST can assist in analyzing your nexus footprint—ensuring registration only where it’s legally required and supporting seamless compliance.

Before You Begin: What You’ll Need

Getting ready to apply for a Kentucky sales and use tax permit? Here’s a practical checklist of essential information and documents that will streamline the process.

Comprehensive Checklist

Make sure you have the following on hand before you start your application:

  • Federal EIN
  • NAICS code representing your business sector 
  • Business structure and legal name (LLC, corporation, etc.)
  • Ownership details—names and SSNs or EINs of owners/partners
  • Estimated commencement date of sales in Kentucky

Supporting Documentation

Depending on your business model, be ready with:

  • Resale certificate forms (Form 51A105), for purchases exempt from tax
  • Nexus evidence for remote sellers—such as sales transaction records showing ≥200 sales or ≥$100,000 gross receipts in KY 

Step‑by‑Step Application Process

Ready to secure your Kentucky sales and use tax permit? Here’s exactly how to navigate both online and paper applications—complete with practical tips and key contact info.

 Online via Kentucky Business One‑Stop Portal

Start with an account at the [Kentucky One‑Stop Business Portal].

  1. Log in (or create an account) and select “Register or link to your business.”
  2. Choose “Sales & Use Tax Account” under tax registrations.
  3. Complete questions about your business structure, location, and responsible party.
  4. Review, submit, and save your progress as drafts to avoid re-entering data.
  5. You’ll receive confirmation once submitted, then wait for your permit number notification.

Paper Filing with Form 10A100

Prefer a manual option? Download Form 10A100 from the Kentucky DOR website.

  • Fill out with EIN, business ID, NAICS code, and types of taxable activity (see Q23 on form).
  • Attach resale certificates if needed.
  • Sign and mail or fax:
    • Fax: (502) 227‑0772 
    • Mail: Station 67, Department of Revenue, Frankfort, KY 40602

Pros & Cons:

  • Online: Faster (typically processed in 3–5 business days), immediate confirmation.
  • Paper: Good if you’re registering only for tax purposes and not linking to Secretary of State records—but expect 2–3 weeks of processing.

After You Submit

Now that you’ve submitted your application, here’s what happens next and how to confirm your approval.

Processing Timeline

  • Online submissions via the Kentucky Business One‑Stop Portal typically take 2–3 weeks for your permit to be processed and approved.
  • Paper filings using Form 10A100 can take up to 4 weeks.

How to Confirm Approval

  • Online applicants: You’ll receive an alert or email notification in your One‑Stop portal, and a copy of your permit becomes available in your portal dashboard.
  • Paper applicants: Look for your physical permit mailed to the address provided on the form. It includes your permit number and filing frequency.

Filing Frequency & Ongoing Compliance

Before you start reporting, it’s important to understand your filing obligations and how to stay compliant long-term.

Typical Filing Frequencies

Kentucky assigns filing frequency—monthly, quarterly, or annually—based on your total tax liability Businesses with over $10,000 in monthly tax liability also face accelerated filing and payment requirements. All returns, regardless of filing cycle, are due by the 20th of the following month or quarter.

Zero‑Returns

If you collect no sales tax during a period, you must still file a zero return. Skipping this step can lead to penalties—even with no tax due.

Permit Validity

Kentucky sales tax permits do not expire. Once issued, they remain active unless revoked—so you won’t need to renew annually.

Timely‑Filing Discount

Kentucky offers a vendor compensation credit for on-time filing:

  • 1.75% off the first $1,000 of tax liability
  • 1.5% off the remaining amount, capped at $50 total.

Audit Triggers & Recordkeeping

Audits aren’t random—they follow patterns. Understanding what sets off a Kentucky sales and use tax audit and maintaining solid records can save you time, money, and stress.

Common Audit Triggers

  • Late or missing returns, including zero‑returns—you must file even when sales are zero
  • Sudden fluctuations in taxable vs. exempt sales can raise suspicion
  • Unregistered business activity—if you have nexus but don’t register or file, you risk much more scrutiny

These are signals Kentucky DOR monitors closely.

Records to Retain

Keep thorough, organized documentation for at least the statute window (typically 4 years in Kentucky):

  • Sales logs and general ledgers that reconcile with tax returns
  • Exemption and resale certificates to support non‑taxable sales
  • Filing receipts and proof of tax remittance

Best Practices for Recordkeeping

  • Use digital systems (like accounting software or cloud storage) to organize and back up records
  • Categorize and timestamp documents—makes finding records during audits fast
  • Maintain copies of filed returns and certificates even when expired

HOST: Your End-to-End Sales Tax Compliance Partner

Securing a Kentucky sales and use tax permit is just the first step. Staying compliant—month after month, state after state—is where most businesses struggle. That’s where HOST becomes your advantage.

Full-Service Registration & Setup

HOST handles sales tax registration not just in Kentucky, but across all 50 states. From nexus evaluation to completing Form 10A100 or setting up the Business One‑Stop Portal, every detail is managed on your behalf.

Filing & Return Management

HOST takes over the routine but critical task of filing your monthly, quarterly, or annual returns. That includes filing zero-returns when needed, optimizing for vendor discounts, and submitting payments accurately and on time.

Notice Handling & Audit Defense

HOST monitors and responds to tax notices, ensuring nothing slips through the cracks. If you’re audited, HOST provides full support—from document prep to direct state communication.

Custom Tax Matrix & Certificate Management

Need to apply variable tax rates across SKUs? HOST builds and maintains your tax matrix. They also let you generate resale certificates for your vendors and manage exemption documentation across all states.

Tech Integrations

Already using TaxJar, Avalara, Stripe, or Shopify? HOST seamlessly integrates, audits your existing setup, and corrects errors—without disrupting your workflow.

From setup to strategy, HOST is your one-stop sales tax compliance partner—so you can focus on growing your business, not chasing filings.

Compliance Starts with Confidence

Getting your Kentucky sales and use tax permit is more than a regulatory checkbox—it’s the foundation for legal, worry-free operations in the state. From understanding nexus rules to staying audit-ready, every step matters. But you don’t have to figure it all out alone. HOST simplifies the entire sales tax journey with expert-backed services that cover registration, filings, audit defense, and more. If sales tax compliance has been slowing you down or stressing you out, it’s time to take it off your plate. Reach out to HOST today for a personalized consultation and get back to growing your business.

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