Kentucky SaaS sales tax at a glance
| Detail | Value |
|---|---|
| Is SaaS taxable? | Taxable |
| Downloaded software | Taxable |
| Base state sales tax rate | 6% |
| Typical combined rate | 6% |
| Local tax rates? | No |
| Economic nexus threshold | $100,000 in sales |
| Reference period | The previous or current calendar year |
| Revenue authority | Kentucky Department of Revenue |
Is SaaS taxable in Kentucky?
The rule
Kentucky treats SaaS as an enumerated taxable service called prewritten computer software access services, taxed on the full charge.
The main exception
AI features that adapt to a customer's data do not make software custom, so AI-powered SaaS is taxed like any other prewritten software.
What to do
Separately state any customization charges on the invoice, since only separately stated work for a single customer qualifies as exempt custom software.
Is your product taxable in Kentucky?
Whether a particular product is taxed in Kentucky can depend on two things: how the software reaches the customer and how you write the invoice.
Does it matter how the software reaches the customer?
In Kentucky, downloaded software is taxable. Software counts as downloaded when the customer installs a copy, such as a desktop app, an agent or an offline client, even if most of the product runs online.
Does it matter how you write the invoice?
In Kentucky, setup, implementation and training fees are taxable for installation, but not for separately stated training. Listing them on their own invoice lines, rather than inside one software price, is what lets them be treated separately.
How are other software products and services taxed in Kentucky?
SaaS rarely ships alone. This is how Kentucky treats the products and charges that usually sit next to it on an invoice.
| Product or charge | Treatment |
|---|---|
| Downloaded software | Taxable |
| Custom software | Not taxable If the customization is separately stated |
| Cloud infrastructure and platforms (IaaS, PaaS) | Not taxable Unless it includes access to prewritten software |
| AI tools and API access | Taxable |
| Digital goods (e-books, music, video) | Taxable |
| Maintenance and support | Taxable |
| Setup, implementation and training | Taxable For installation, but not for separately stated training |
Does Kentucky tax B2B and B2C SaaS differently?
No. Kentucky treats SaaS the same way for business and consumer buyers.
How much sales tax do you charge on SaaS in Kentucky?
SaaS is taxed at a base rate of 6%, and the typical combined rate is 6%.
Do cities or counties tax SaaS differently?
No. Kentucky has no local sales tax, so the state rules apply everywhere.
General sales tax rates, including any local rates, are in our Kentucky sales tax guide.
Do you need to register for sales tax in Kentucky?
Physical and economic nexus
Registration follows nexus. Once you have nexus in Kentucky and sell something taxable there, you need to register. Nexus comes from a physical presence, such as an office, staff or inventory in the state, or from passing an economic threshold.
In Kentucky, the economic nexus threshold is $100,000 in sales over the previous or current calendar year. Exempt sales still count toward it. Our Kentucky nexus guide covers the rules in full.
Which address sets the rate
For remote sellers, the rate is based on where your customer is, not where your business or servers are. Kentucky has no multiple points of use certificate, so the full charge is taxed at the customer's location.
Buyers who do not pay tax
Some buyers can give you a certificate instead of paying tax. In Kentucky, that includes resellers, government agencies and qualifying 501(c)(3) nonprofits. Collect the certificate at the time of sale and keep it, because in an audit it is the only thing standing between you and the tax.
How to register, collect and file in Kentucky
Register
If you need to register, do it with the Kentucky Department of Revenue through Kentucky MyTaxes. Note your account number and the filing frequency you are given, since both decide when and how you file.
Collect the right amount
Charge tax only on what Kentucky taxes. Collecting tax that is not owed creates its own refund and audit problems.
- List services on their own invoice lines, so each charge is taxed on its own terms.
- Describe each product on the invoice the way it actually reaches the customer: online access, a download or something shipped.
- Recheck the treatment whenever you add a desktop app, a hardware option or a new add-on, since each can change what is taxable.
File and keep records
Your filing frequency is assigned when you register: monthly, quarterly or annually, as assigned by the Department. Returns are due by the 20th of the month after each period ends.
You must file a return for every period, even when no tax is due.
Keep invoices, exemption certificates and returns for at least four years. That paperwork is what decides the taxable amount if you are audited years later.
What should SaaS businesses watch when selling in Kentucky?
Past sales where no tax was charged
If you should have been collecting and were not, the Kentucky Department of Revenue can assess the unpaid tax plus a penalty of 2% for each 30 days late up to 20% and interest.
A voluntary disclosure agreement can reduce penalties if you come forward first. Work out which past sales were taxable before you come forward, so you know the size of the exposure.
Rule changes worth tracking
Nothing enacted or pending changes how Kentucky taxes SaaS.
The rules verified date at the top of this page shows when these rules were last checked.
How does Galvix help SaaS businesses manage Kentucky sales tax compliance?
We handle this
Sales tax in Kentucky is one line in a much larger problem. Most SaaS companies sell into 30 or 40 states, each with its own answer, threshold and filing calendar.
- We map each of your products and add-ons against every state's rules, including the ones that can change the answer in Kentucky.
- We watch your sales against every threshold and tell you before you cross one, not after.
- We handle registrations wherever you need one.
- We file and remit on each state's schedule, zero returns included.
- We collect and store exemption certificates so they are there when an auditor asks.