A service tax is an indirect tax that a government charges on service transactions rather than physical goods. The United States does not impose a single federal service tax. Instead, service income runs into three overlapping systems: federal excise taxes on a short list of specific services, state sales taxes that increasingly reach services, and self-employment tax on net earnings of $400 or more. India ran a standalone service tax from 1994 until 2017, when it was folded into a unified Goods and Services Tax, and that is the tax most people mean when they use the phrase in its formal sense.
Federal Excise Taxes on Specific Services
The federal government taxes only a handful of services, through excise taxes reported quarterly on IRS Form 720. The business collecting payment is generally the party responsible for collecting the tax and remitting it.1Internal Revenue Service. Form 720 Quarterly Federal Excise Tax Return The main service-related excise taxes are:
- A 3% federal excise tax on amounts paid for local telephone service, toll telephone service, and teletypewriter exchange service, collected by the phone company.2Office of the Law Revision Counsel. 26 US Code 4251 – Imposition of Tax
- A 7.5% tax on amounts paid for domestic air passenger travel, built into airline ticket prices.3Office of the Law Revision Counsel. 26 US Code 4261 – Imposition of Tax
- A 10% tax on amounts paid for indoor tanning services, including any portion covered by insurance, collected by the salon at payment.4Office of the Law Revision Counsel. 26 USC 5000B – Imposition of Tax on Indoor Tanning Services
Most professional, personal, and business services carry no federal excise tax at all. Where the tax does apply, the business providing the service has the legal duty to collect it. If it fails to charge the tax, the business itself becomes liable for the amount that should have been collected.5eCFR. 26 CFR 49.5000B-1 – Indoor Tanning Services
State Sales Tax on Services
At the state level, the treatment of services varies enormously. Most states impose sales tax on at least some categories of services. A few states tax services by default and only exempt those specifically carved out by the legislature; the majority start from the opposite direction and tax only services listed in the statute. Several states impose no general sales tax at all.
Commonly taxed categories include repair and maintenance work on personal property, landscaping, janitorial services, telecommunications, and amusement or recreation admissions. Professional services such as legal or accounting work are taxable in some states and exempt in others.
Cross-border service work has its own trap. After the Supreme Court’s 2018 decision in South Dakota v. Wayfair, states can require remote sellers to collect sales tax once they exceed a revenue or transaction threshold in that state, and many states apply these economic nexus rules to service providers. The common threshold is $100,000 in sales or 200 transactions within the state during the prior year, though each state sets its own numbers. If the services you sell are taxable in a state where you have customers but no office, you may still owe registration and collection there.
Self-Employment Tax on Service Income
If you earn income providing services as a sole proprietor, freelancer, or independent contractor, you owe self-employment tax once your net earnings reach $400. This is the tax that funds Social Security and Medicare, and it sits on top of income tax.6Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
The combined self-employment tax rate is 15.3%: 12.4% for Social Security and 2.9% for Medicare.6Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) The Social Security portion applies only to earnings up to $184,500 in 2026.7Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates The Medicare portion has no cap, so every dollar of net earnings above that threshold still carries the 2.9% Medicare tax. W-2 employees see only half these rates on their paychecks because employers pay the other half; when you are self-employed, you pay both sides.
You get a partial break. You can deduct half of your self-employment tax when calculating your adjusted gross income, which reduces your income tax. The self-employment tax itself must still be paid in full.
Reporting Payments for Services on Form 1099-NEC
When a business pays $2,000 or more during the year to a non-employee for services, it must report the payment on Form 1099-NEC.8Internal Revenue Service. Publication 1099 General Instructions for Certain Information Returns – For Use in Preparing 2026 Returns The threshold rose from $600 for tax years beginning after 2025 and adjusts for inflation starting in 2027. The form covers payments for services performed for your trade or business by people you do not treat as employees, such as fees paid to subcontractors or independent consultants.
For the 2026 tax year, filing deadlines are February 28 for paper filers and March 31 for electronic filers.8Internal Revenue Service. Publication 1099 General Instructions for Certain Information Returns – For Use in Preparing 2026 Returns Missing these deadlines triggers graduated penalties:
- Up to 30 days late: $60 per return
- 31 days late through August 1: $130 per return
- After August 1 or never filed: $340 per return
- Intentional disregard: $680 per return, with no cap on the total
These penalties apply separately for each form filed late or incorrectly.9Internal Revenue Service. Information Return Penalties The same penalty structure applies to failing to provide the payee statement, meaning the copy that goes to the contractor.
Quarterly Estimated Tax Payments
Employees have taxes withheld from every paycheck. Self-employed service providers do not, so the IRS expects estimated payments four times a year. The 2026 deadlines are:
- First quarter: April 15, 2026
- Second quarter: June 15, 2026
- Third quarter: September 15, 2026
- Fourth quarter: January 15, 2027
You can skip the January payment if you file your 2026 return and pay the full balance by February 1, 2027.10Internal Revenue Service. 2026 Form 1040-ES – Estimated Tax for Individuals
If you underpay, the IRS charges an interest-based penalty on the shortfall. You can generally avoid the penalty by paying at least 90% of the tax you owe for the current year or 100% of last year’s tax liability, whichever is less. If your adjusted gross income exceeded $150,000 in the prior year ($75,000 if married filing separately), the safe harbor rises to 110% of last year’s tax.11Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty The annualized income installment method on Schedule AI of Form 2210 can help if your income fluctuates significantly from quarter to quarter.
Where the Term “Service Tax” Comes From
The phrase “service tax” as the name of a formal levy comes mostly from India. India introduced a service tax under the Finance Act of 1994, initially covering just three service categories. Over the next two decades, the list expanded to cover nearly all commercial services, with a “Negative List” carving out exemptions for activities such as basic education, public transportation, and agricultural services.
Running a separate tax on services alongside separate taxes on goods produced cascading taxation. A manufacturer buying consulting services paid service tax on those fees but could not credit that tax against sales tax owed on finished goods, so taxes stacked on other taxes at each stage of the supply chain. In 2017, India replaced the service tax and more than a dozen other indirect taxes with a unified Goods and Services Tax. Under GST, businesses claim credits for taxes paid on inputs regardless of whether those inputs are goods or services, which breaks the cascade.12Central Board of Indirect Taxes and Customs. Registration FAQs
The United States has never adopted a national GST or value-added tax. Service providers operating here face the patchwork instead: excise tax on a narrow set of industries, sales tax that depends on the state and the type of service, and self-employment tax on net earnings. There is no single service tax rate to look up, but the combined burden of self-employment tax, estimated payments, and state sales tax obligations adds up quickly for anyone who is not tracking it from the start.