States that tax services fall into three groups. Four states — Hawaii, New Mexico, South Dakota, and West Virginia — treat services as taxable by default and require you to point to an exemption to avoid tax. Five states — Alaska, Delaware, Montana, New Hampshire, and Oregon — have no general sales tax. The remaining states tax only services their legislatures have specifically named on a taxable list, which means whether your service is taxed depends on the exact category and the exact state.
The Four States That Tax Almost All Services
Hawaii, New Mexico, South Dakota, and West Virginia flip the usual presumption. If you provide a service in any of these states, you owe tax unless the law explicitly exempts what you sell. The burden of proving the exemption sits with the provider.
Hawaii
Hawaii uses a General Excise Tax rather than a traditional sales tax. The GET is technically a tax on the privilege of doing business, and it reaches virtually every economic activity, including professional fees charged by doctors, lawyers, and engineers.1Cornell Law School / Legal Information Institute. Hawaii Code R 18-237-1 – Definitions The base rate for retail sales and most services is 4%, and all four counties have adopted a 0.5% surcharge, pushing the effective rate to 4.5% across most of the state.2Hawaii Department of Taxation. General Excise Tax (GET) Information
New Mexico
New Mexico applies a Gross Receipts Tax to virtually all services performed in the state. The tax is imposed on the business, though most providers pass it along to customers.3NM Taxation and Revenue Department. Gross Receipts Tax Overview The state rate is 4.875%, and combined state and local rates can exceed 8% in larger cities.
South Dakota
South Dakota imposes its 4.2% sales tax on services broadly, with carve-outs for health services, education, financial services, agricultural services, and construction (which falls under a separate contractor’s excise tax).4South Dakota Department of Revenue. Sales and Use Tax Guide
West Virginia
West Virginia applies its 6% sales and use tax with the same default presumption: all services are taxable unless an exemption is clearly provided in the code.5West Virginia Tax Division. Sales and Use Tax
States With No General Sales Tax
Alaska, Delaware, Montana, New Hampshire, and Oregon do not impose a statewide general sales tax, and none has a broad-based tax on services. Two of those states carry caveats worth knowing.
Alaska allows local governments to levy their own sales taxes, and roughly 110 of the state’s 162 municipalities do exactly that. Local rates range from 1% to 7%, and each city or borough decides independently which goods and services fall within scope.6State of Alaska Department of Commerce, Community, and Economic Development. Sales Tax If you provide services across multiple Alaskan communities, check each municipality’s rules separately; the state doesn’t standardize what’s taxable at the local level.7Alaska Department of Commerce, Community, and Economic Development. Alaska Sales Tax Information
Delaware imposes a gross receipts tax on businesses providing services in the state. Rates run from about 0.09% to 2% depending on the type of business activity, and the tax falls on the provider rather than the consumer.8Delaware Division of Revenue. Gross Receipts Tax FAQs
Montana, New Hampshire, and Oregon each impose narrower taxes on specific activities like lodging, meals, or natural resource extraction, but none amounts to a general service tax.
How the Rest of the States Work
Every other state uses an enumerated services model: services are exempt by default, and only those specifically named in the tax code are taxable. If your service isn’t on the list, you don’t collect tax.
Connecticut’s approach shows how narrow these lists can be. The state publishes a list of taxable services that includes computer and data processing, telephone answering services, and background music provided to commercial establishments.9Connecticut eRegulations. Sec. 12-426-27 – Enumerated Services Services not on the list aren’t taxed. Texas, Minnesota, and Ohio use similar list-based systems with their own distinct categories.
The lists move. Legislatures regularly add new service categories during budget sessions, sometimes dozens at a time. A consulting firm that owed nothing in one state can suddenly face a tax bill because the legislature added “management consulting” to the list. Missing an update can lead to back taxes and penalties stretching back several years.
Service Categories Taxed in Most States
Even in states that tax services sparingly, certain categories show up on taxable lists almost everywhere:
- Repair and maintenance labor on vehicles, appliances, and equipment. Many states treat the labor and replacement parts as a single taxable transaction.
- Utilities including electricity, natural gas, and water, sometimes at reduced rates compared to the general sales tax.
- Telecommunications: phone, internet, and cable.
- Admissions and entertainment, including concert, sporting event, and amusement park tickets.
- Janitorial and landscaping services, which have become more commonly taxed as states broaden their revenue base.
- Installation labor for equipment like HVAC or security systems, frequently taxed as part of the sale of the underlying goods.
These categories tend to be early additions to state tax codes because they involve high transaction volumes, are easy for businesses to track, and rarely generate the political backlash that taxing professional services would.
Professional Services
Lawyers, accountants, doctors, and engineers are exempt from sales tax in most states. Professional services remain one of the most politically difficult categories to tax, and most legislatures haven’t touched them.
The major exceptions are the four broad-tax states. In Hawaii, legal fees, accounting charges, and medical bills are all subject to the GET. New Mexico’s Gross Receipts Tax similarly covers professional services performed in the state.3NM Taxation and Revenue Department. Gross Receipts Tax Overview South Dakota taxes most professional services but exempts health and educational services.4South Dakota Department of Revenue. Sales and Use Tax Guide West Virginia’s presumption of taxability extends to professional services unless a specific exemption applies.5West Virginia Tax Division. Sales and Use Tax
Outside those four states, a handful of jurisdictions tax narrow slices of professional services.
SaaS and Digital Services
Software as a Service has become one of the fastest-moving areas in state tax law. Roughly 25 states now tax SaaS in some form, and the count keeps growing as legislatures try to capture revenue from cloud-based products that didn’t exist when their tax codes were written.
New York, Texas, Pennsylvania, and Washington treat SaaS as taxable. California and Florida have historically exempted it. A few states, including Iowa and Ohio, draw a line between business-to-business and business-to-consumer SaaS transactions, taxing one but not the other. The classification logic differs from state to state: what one state considers a taxable software product, another treats as an exempt intangible service.
If you sell SaaS across multiple states, expect the answer to shift year over year.
When Remote Providers Get Pulled In
The 2018 Supreme Court decision in South Dakota v. Wayfair eliminated the old rule requiring a physical presence in a state before that state could require you to collect sales tax. States can now require tax collection from remote sellers, including service providers, once they cross an economic activity threshold.
Most states set the threshold at $100,000 in annual sales, though some also trigger collection obligations at 200 separate transactions, whichever comes first. Several large-economy states set higher bars: California, New York, and Texas each require $500,000 in sales. Alabama and Mississippi use a $250,000 threshold.
Service businesses get tripped up here because not every state counts services toward the threshold calculation. California, Florida, and Nevada exclude services entirely from their nexus math, meaning you could generate significant service revenue there without ever triggering a collection obligation. Arizona, Colorado, and Massachusetts count both taxable and exempt services toward the threshold. Hitting $100,000 in one state does not create the same obligation as hitting $100,000 in another.
Meeting the threshold alone still doesn’t create a tax bill. Your specific service has to be one the state taxes. A web designer who crosses the threshold in a state that doesn’t tax web design has no collection obligation there. Two questions apply to every state: do I have nexus, and is my service on the taxable list?
Which State’s Rate You Charge
Once a service is taxable and you have nexus, sourcing rules decide which jurisdiction’s rate applies. Destination-based sourcing, used by the large majority of sales-tax states, taxes the service where the customer receives or first uses it. That means tracking rates across every jurisdiction where your customers sit, including city, county, and special district rates on top of the state rate.
Origin-based sourcing taxes the service where the provider is located. A smaller group of states, including Texas and Pennsylvania, use origin-based rules for at least some in-state transactions. For remote providers, destination-based sourcing generally applies regardless of the state’s default rule.
What Happens If You Get It Wrong
Registering for a sales tax permit is free in most states. The real financial exposure comes from failing to register, collect, or remit when required.
Late filing penalties typically run 5% to 10% of the unpaid tax per month, and many states impose minimum fees even on zero-dollar returns. Interest accrues on top. Several states assess the greater of a percentage-based penalty or a flat minimum fee, so even a small underpayment can generate a disproportionate bill.
The statute of limitations for sales tax audits runs three years in most states, measured from the filing date or due date. Underreport taxable sales by more than 25% and many states extend that window to five or six years. Some stretch it further; California allows an eight-year lookback for significant underreporting. If you never filed at all, most states impose no statute of limitations whatsoever.
That last point catches the most service businesses off guard. A company that didn’t realize it owed tax in a state usually hasn’t filed any returns there, so the clock never started. By the time the state catches up, the combined tax, penalties, and interest can dwarf what the original bill would have been. If you have any doubt about whether your services are taxable in a state where you have customers, sorting it out proactively almost always costs less than waiting.