SaaS sales tax is decided state by state, because the United States has no federal sales tax. In 2026, Texas, New York, Washington, Pennsylvania, Ohio, Connecticut, Maryland and Massachusetts all tax subscription software in some form, Chicago adds its own lease tax, and California starts taxing SaaS on January 1, 2027. You owe collection only in states where your product is taxable and you have nexus.
This guide covers SaaS sales tax for software companies and the CPA firms that advise them. It walks through how each major state classifies cloud software, the rate or base it applies, how economic nexus works after the Wayfair decision, how to source a subscription with users in several states, and a worked example that runs the same contract price through six jurisdictions.
States wrote their sales tax laws around physical goods, then had to decide where software delivered over a browser fits. Each state picked its own answer, and the label it chose drives everything else.
Some states treat remotely accessed software as prewritten software, which they already define as tangible personal property. New York and Pennsylvania follow this route. Others tax it as a service, such as data processing (Texas), electronic information services (Ohio) or computer and data processing services (Connecticut). Washington has a separate category for remote access software. Maryland created a dedicated 3% tax on data and IT services in 2025. Several states still exempt it because nothing tangible changes hands, and California is the largest of those until the end of 2026.
The label decides the rate and whether business and personal buyers are treated differently.
The table below summarizes the treatment in the states asked about most often. Each row was checked against the state revenue agency's own guidance in October 2026.
| State | How SaaS is classified | What gets taxed | Notes for 2026 |
|---|---|---|---|
| Texas | Data processing service | 80% of the charge | 6.25% state rate, up to 8.25% combined |
| New York | Prewritten software (license to remotely access) | Full charge, allocated to New York users | 4% state rate plus local |
| Washington | Remote access software, a separately classified retail sale | Full charge | IT services also taxable since Oct. 1, 2025 |
| Pennsylvania | Canned software (tangible personal property) | Full charge for users in Pennsylvania | 6% state rate since Act 84 of 2016 |
| Ohio | Electronic information services / data processing | Business use only | Personal use not taxed |
| Connecticut | Computer and data processing services | Full charge | 1% for business use, 6.35% for personal use |
| Illinois (Chicago) | Nonpossessory computer lease | Full charge for use in Chicago | City lease tax rose to 15% on Jan. 1, 2026 |
| Maryland | Data or IT services | Full charge | 3% for enterprise use, 6% for individual use |
| Massachusetts | Prewritten software on a remote server | Full charge | Object-of-the-transaction test for close cases |
| California | Not taxable through 2026 | Nothing in 2026 | Taxable as a digital product from Jan. 1, 2027 |
Texas taxes most SaaS as a data processing service. The Comptroller defines that service as "using a computer for word processing, data entry, production, compilation, storage or manipulation" in its list of taxable services, and the same page states that "twenty percent of the charge for data processing services is exempt from tax." In practice you tax 80% of the subscription price at the combined state and local rate. Texas's state rate is 6.25%, and local jurisdictions can add up to 2%, so the most a customer pays is 8.25% of 80% of the charge, which works out to 6.6% of the full price. Our Texas sales and use tax guide covers registration and local rates in more depth.
New York treats SaaS as a license to use prewritten software. Its computer software bulletin, TB-ST-128, says prewritten software is taxable "regardless of how the software is conveyed to the purchaser" and that "a license to remotely access software is subject to state and local sales tax." When a customer has users both inside and outside the state, the seller collects tax on "the portion of the receipt attributable to the users located in New York." The state rate is 4%, with county, city and transit district rates added on top.
Washington's Department of Revenue says sales tax applies "to all digital products, regardless of how they are accessed," and its digital products guide defines remote access software as "prewritten software provided remotely." Under ESSB 5814, remote access software is now separately classified as a retail sale, and IT services such as help desk support, managed IT services and network support became taxable on October 1, 2025. The Washington sales tax guide explains the state's rate structure and B&O tax.
Act 84 of 2016 applied Pennsylvania's 6% sales and use tax to digital products, including canned software. The Department of Revenue's canned software guidance states that "remotely accessed tangible personal property is subject to tax when the user is located in Pennsylvania" and that the sale stays taxable whether the software is delivered digitally or accessed through a SaaS agreement. If the billing address is in Pennsylvania, all users are presumed to be there unless the buyer allocates licenses to out-of-state employees on Form REV-1220.
Ohio taxes automatic data processing, computer services and electronic information services when the customer buys them for use in business. The Department of Taxation's taxability list shows "Business Data Processing & Electronic Info Services: Taxable." A consumer subscription to the same product is generally outside the tax. As a practical step, ask at signup whether an Ohio account is for business or personal use and keep that answer on file, since the customer's representation becomes part of your audit trail.
Connecticut's general rate is 6.35%, but its Department of Revenue Services lists a 1% rate for computer and data processing services on its sales tax information page. That category covers "canned software electronically accessed or transferred, without any tangible personal property" that is "purchased by a business for business use." Software accessed for personal use is taxed at 6.35%. Canned software transferred with any tangible personal property is taxed at 6.35% in all cases. The Connecticut sales tax guide covers registration and filing.
The bigger exposure in Illinois sits at the city level. Chicago's Personal Property Lease Transaction Tax applies, as of January 1, 2026, at "15% of receipts or charges for all leases, including the non-possessory lease of a computer to input, modify, or retrieve data supplied by the customer." The rate was 11% in 2025 and 9% from 2021, so contracts priced on older assumptions may be under-collecting. The city says the tax applies to businesses or individuals that are either a lessor or lessee of personal property used in Chicago. At the state level, Illinois dropped its 200-transaction nexus test on January 1, 2026, leaving $100,000 in cumulative gross receipts as the only remote retailer threshold.
From July 1, 2025, Maryland imposes a 3% sales and use tax on data and IT services. Technical Bulletin No. 56 states that SaaS sold "for use for commercial purposes in an enterprise computer system is subject to sales and use tax at the 3% rate," while "SaaS sold for individual use is taxed at the 6% rate." Maryland also accepts a multiple points of use certificate, which shifts the duty to apportion and pay the tax to the buyer. More on rates and exemptions is in the Maryland sales tax guide.
Massachusetts regulation 830 CMR 64H.1.3 lists "transfers of rights to use software installed on a remote server" among taxable transfers of prewritten software, so most SaaS is taxable there. The Massachusetts sales tax guide covers the state's filing rules.
California is the change to plan for now. Its tax agency's digital products guide says that "beginning January 1, 2027, sales and use tax generally applies to the retail sale of a digital product," and its definitions under Senate Bill 122 (Stats. 2026, Ch. 23) list software as a service among digital products. Cloud platforms that let customers run their own software are excluded as digital infrastructure. California SaaS sellers should update tax codes, contracts and invoices before the first 2027 billing run, and annual contracts that renew in early 2027 need a decision now.
Taxability tells you whether a sale is taxable. Nexus tells you whether you are the one who has to collect. In South Dakota v. Wayfair (2018), the Supreme Court overruled the physical presence rule and upheld a law that applied to sellers delivering more than $100,000 of goods or services into the state, or making 200 or more separate transactions there, each year. Most states then adopted a threshold modeled on that law, and several have since dropped the transaction count.
The thresholds that matter most to SaaS sellers differ more than founders expect. Texas does not require remote sellers with less than $500,000 in Texas revenue over the preceding twelve calendar months to obtain a permit or collect. New York's test requires both more than $500,000 in receipts and more than 100 sales over the prior four sales tax quarters. Illinois now uses only the $100,000 receipts test. Physical presence still creates nexus on its own, and a single remote employee working from home in a state can be enough.
SaaS revenue crosses dollar thresholds faster than many teams expect because annual prepaid contracts are booked in full. Track gross receipts by customer state monthly, including exempt and nontaxable sales, since many states count total sales toward the threshold. Our guide, SaaS Billing Sales Tax in 2026: Nexus, Invoicing and ASC 606 Impacts, explains how billing setup affects that tracking, and economic nexus for growing businesses covers registration timing once a threshold is crossed.
Sourcing decides which state, and which local rate, applies to a sale. Most states use the customer's location, and the sales tax sourcing guide explains the destination and origin rules in detail. For software, the harder question is a customer whose users sit in several states.
New York allocates the receipt by where users are located. Pennsylvania presumes every user is at the billing address unless the buyer allocates licenses to out-of-state employees. Washington treats remote access software as used where the customer first accesses it. Maryland lets the buyer take over apportionment with a multiple points of use certificate. In practice, collect a seat count by state at contract signing, store it with the invoice, and refresh it at each renewal.
This example is illustrative. A project-management SaaS company sells a $30,000 annual business plan to six enterprise customers in 2026. Each customer buys for business use, the seller has nexus in each state, and none of the buyers holds an exemption.
| Customer location | Taxable base | Rate used | Tax |
|---|---|---|---|
| Austin, Texas | $24,000 (80% of $30,000) | 8.25% | $1,980 |
| New York City (40 of 100 users in NY) | $12,000 | 8.875% (illustrative combined rate) | $1,065 |
| Hartford, Connecticut | $30,000 | 1% | $300 |
| Baltimore, Maryland | $30,000 | 3% | $900 |
| Chicago, Illinois (city lease tax only) | $30,000 | 15% | $4,500 |
| San Francisco, California | $0 in 2026 | n/a | $0 |
| Total | $8,745 |
The same $30,000 contract produces anything from $0 to $4,500 of tax depending on where the customer sits. The Chicago line is the largest because the city rate applies to the full charge. The New York line uses an illustrative 8.875% combined rate, so confirm the rate for the customer's address in the state's Publication 718. The California line becomes taxable at the local rate for renewals billed on or after January 1, 2027. Revenue recognition does not change because of any of this, since sales tax collected is a liability, and our guide to SaaS revenue recognition under ASC 606 explains how to keep tax out of the transaction price.
Once a state has both nexus and a taxable product, register before you collect, because most states treat collecting without a permit as a violation. Map each product and add-on, such as onboarding, training and support, to a tax code, since Washington, Connecticut and Texas all treat services sold with software differently. Store exemption and resale certificates against the customer record, and file on the schedule each state assigns.
Most SaaS companies use a tax engine connected to billing once they file in more than a handful of states. Our comparison of sales tax automation software covers the main options. If you find past exposure in a state where you never registered, a voluntary disclosure agreement can limit the lookback period and reduce penalties in many states. Income tax nexus follows separate rules, covered in our multi-state tax compliance guide.
Is SaaS taxable in every state? No. Taxability is set by each state. Texas, New York, Washington, Pennsylvania, Ohio (business use), Connecticut, Maryland and Massachusetts tax it in 2026, while California does not until January 1, 2027. Several other states exempt it or have no statewide sales tax.
How does the Texas 80% rule work for SaaS? Texas taxes SaaS as a data processing service and exempts 20% of the charge. You apply the combined state and local rate, up to 8.25%, to the remaining 80% of the price.
Do I have to collect SaaS sales tax if I have no office in a state? You may. Since Wayfair, states can require collection once your sales into the state cross an economic nexus threshold, such as $100,000 in Illinois or $500,000 in Texas, even without any physical presence.
Does Chicago tax SaaS? Yes. Chicago's Personal Property Lease Transaction Tax covers the nonpossessory lease of a computer, which includes most cloud software used in the city. The rate is 15% from January 1, 2026.
How do I handle a customer with users in several states? Collect a user or seat count by state at signing. New York and Pennsylvania allow allocation of the charge to users outside the state, Maryland accepts a multiple points of use certificate, and Washington looks at where the software is first accessed.
When does California start taxing SaaS? January 1, 2027, under Senate Bill 122, which adds digital products, including SaaS, to the definition of tangible personal property.
Madras Accountancy supports SaaS companies and CPA firms with bookkeeping, sales tax compliance, tax preparation and CFO advisory, including nexus tracking, product taxability mapping and state filings. To review where your subscriptions are taxable and where you need to register, contact our team.
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