The Chicago “Cloud Tax” Reached 15% in 2026 – Here’s What It Actually Costs You

What Chicago Businesses Need to Know About the “Cloud Tax”

A Chicago business paying $8,000 a month for cloud software is now looking at roughly $14,400 a year in city tax on top of the subscriptions themselves. That’s not a state sales tax and it isn’t something most software vendors explain on the invoice. It’s Chicago’s Personal Property Lease Transaction Tax, and on January 1st, 2026, the rate went from 11 percent to 15 percent.

Two things make this worth twenty minutes of your attention. The first is that the liability sits with you, the customer, whether or not your vendor collects it. The second is that a meaningful number of Chicago businesses are paying tax on users who are not in Chicago, because nobody has ever asked the question that would establish otherwise.

This post covers what the tax applies to, where the money is usually being overpaid, and which parts of the problem are IT questions rather than accounting questions.

The Rate Has Risen Twice in Two Years, and 15 Percent Isn’t the Historical Norm

For most of the last decade, the rate was 9 percent. It moved to 11 percent on January 1st, 2025, then to 15 percent on January 1st, 2026 under the City Council’s 2026 Revenue Ordinance. In proportional terms, those are increases of roughly 22 percent and then a further 36 percent, back-to-back.

There’s a further wrinkle worth knowing if you have been running the same software contracts for years. Between 2016 and 2020, cloud products qualified for a reduced rate, initially 5.25 percent and later 7.25 percent, on the theory that accessing software remotely was different from leasing equipment. The city eliminated that distinction effective January 1st, 2021. Every non-possessory computer lease now sits at the full rate.

Essentially, a software spend that carried 7.25 percent in 2020 carries 15 percent today. If nobody has revisited your cloud budget assumptions since then, the gap between the model and the invoice is now substantial.

Your Vendor Not Charging It Doesn’t Mean You Don’t Owe It

This is the part that catches many business owners. The tax is imposed on the lessee, meaning the customer. Vendors are responsible for collecting and remitting it, but if a vendor fails to collect, the purchaser remains legally liable and has to self-assess and remit directly to the city.

In practice, national and international software companies vary widely in how carefully they handle a single city’s tax. Some apply it correctly at the address level. Some apply it to every Illinois customer regardless of city. Some ignore it entirely. An absent line item on your invoice is not a determination that you’re exempt, and it isn’t a defence in an audit.

The city addresses this directly. Its guidance states that providers are only required to collect the tax where they have sufficient contacts with Chicago, sometimes called nexus. Where a provider has no nexus, the customer is required to pay the tax to the city directly, and the city publishes an annual Lease Tax form for exactly that purpose.

So a vendor with no Chicago presence may be entirely correct not to charge you, and you may still owe the money. Those two facts sit together uncomfortably, and they’re the reason this is worth checking rather than assuming. They’re also the reason why it’s vital to work with an expert IT company in Chicago. 

The Tax Follows Where Your People Work, Not Where Your Office Is Registered

This is where most of the recoverable money sits, and it’s also where the rule is most often misunderstood. Ruling #12 permits a taxpayer to apportion between Chicago and non-Chicago use where a single charge covers both.

The basis for that split isn’t where somebody’s laptop happens to be sitting. For any individual assigned a licence, seat or access code, the ruling presumes all of that person’s use takes place at their principal office location. A member of staff assigned to a Loop office is presumed to be a Chicago user, whether they are at their desk, at home in Oak Park, or in an airport. Where it’s supported by books and records, the city will accept any reasonable basis for apportioning, but the presumption is the starting point.

Where this matters is multi-site businesses. Consider a firm with 60 licences, 35 people assigned to a Loop office, and 25 assigned to a satellite office in Naperville. If the full subscription is being taxed at 15 percent, roughly 40 percent of that tax relates to users whose principal office is outside the city. On a $96,000 annual software spend, that’s a recurring overpayment in the region of $5,700 a year.

Apportionment isn’t automatic and it isn’t free. It requires you to demonstrate how licences map to office locations, which is not an accounting record. It’s an IT record: licence assignments, user directories, which office each account belongs to, and how that has changed as people have joined, left and moved. Very few businesses have this assembled in a form that would satisfy a reviewer, which is precisely why the apportionment goes unclaimed.

Four Exemptions and Carve-Outs Worth Checking Before You Accept the Bill

The ordinance and the associated rulings contain several distinctions that materially change what is taxable. Read them carefully, because two of them work against you rather than for you.

• Storage, with a condition: Charges solely for storing your data are not a non-possessory computer lease, but only where the provider’s computer is outside the city. Usefully for anyone running offsite backup, retrieving that data during a disaster recovery is treated as incidental to the storage and does not create a taxable charge.
• Bundled contracts: This one runs the other way. Where taxable software access is bundled with storage or services and the provider doesn’t separate the charges, the entire fee is taxable unless you can prove that 50 percent or more of it is non-taxable. A separately stated charge only counts as separate if it’s genuinely optional. The burden of proof is yours.
• Custom development: Software custom designed for a customer is treated as a service and falls outside the tax. Note also that software you install on your own machines under a perpetual licence is assessed under a different ruling and may be treated as a purchase rather than a lease.
• Small new business exemption: A qualifying small new business does not pay the tax as a lessee. The test has three parts: a valid current business licence, under $25 million in gross receipts in the most recent full calendar year, and fewer than 60 months in operation. The revenue threshold covers most small businesses, so the 60 month clock is usually what decides it. Claiming it requires giving your provider an exemption certificate.

However, if there’s no payment, there’s no tax. If you pay nothing for the use, no tax is due. Free tiers and genuine trial periods are outside the tax entirely.

Whether any of these apply to your contracts is a question for your accountant. What we can tell you is that the answer usually depends on how your agreements and your environment are actually structured, and that’s information most businesses have to go and gather before the conversation is even possible.

A 15 Percent Surcharge Changes the Cloud Versus On-Premise Arithmetic

For roughly fifteen years, the default advice has been to move workloads to the cloud, and for good reasons that mostly still hold. But the comparison has always been a cost comparison at some level, and one side of it just moved by four percentage points.

A purchase of hardware is not a lease, so it does not attract the tax. Software installed on your own machines under a perpetual licence falls under a separate city ruling and may be treated as a sale rather than a lease. A subscription accessed from a Chicago desk is squarely taxable. That doesn’t make on-premise the right answer, and we wouldn’t advise anyone to repatriate a working environment over a tax line. It does mean that for a business genuinely deciding where a workload should sit, the honest total cost of ownership calculation in Chicago differs from the same calculation in Naperville or Milwaukee.

This is the sort of question that belongs in a planning conversation rather than a procurement one. Our IT strategy and consulting work exists partly to make sure decisions like this get made with the full picture visible rather than discovered at renewal.

What to Work Through in the Next Thirty Days

None of this requires a project. It requires an afternoon and a conversation with your accountant.

• Inventory your subscriptions: List every subscription your business pays for, including the ones bought on a departmental card. Shadow IT is common and it’s still taxable.
• Check the invoices: Look for the tax as a line item. Note which vendors charge it, which don’t, and which are charging 11 percent because they never updated their rate tables in January.
• Map licences to offices: For each platform, map licences to office locations rather than to people’s home addresses. The question the city asks is which office each licensed user is assigned to. That mapping is what drives apportionment.
• Take it to your accountant: Bring the inventory and the user location data to your CPA and ask specifically about apportionment and any applicable exemptions.

One further note on direction of travel. The same 2026 ordinance made Chicago the first US city to tax social media businesses, at 50 cents per Chicago consumer per month above a 100,000 consumer threshold. That one lands on the platforms rather than on you, but it tells you where the city is looking for revenue. If your cloud environment has grown organically over several years without a review, there’s likely more in it than the lease tax alone.

Where CTI Technology Can Help (And Where We Can’t)

We’re not tax advisors and this post isn’t tax advice. Whether you owe the tax, at what rate, and whether an exemption applies are questions for your accountant, and we’d rather say so plainly than pretend otherwise.

What we can do is produce the information the question depends on. A full inventory of your subscriptions, licence counts and assignments, where users actually sign in from, how your contracts break down between software access, storage and services, and what your cloud spend looks like against alternatives. As an IT company in Chicago, we’ve been working through this with Chicagoland businesses since 2004, and the technology side of the answer is squarely our work.

If you’d like that inventory assembled before you speak to your accountant, call us on (312) 922-8600 or book a fifteen minute call. There’s no obligation and no requirement to change providers to get it.

Aaron Kane

CEO of CTI Technology

Aaron Kane is the CEO of CTI Technology, a Chicago-based IT services provider helping businesses navigate technology with confidence. With expertise in IT strategy, infrastructure, cloud solutions, and voice technologies, Aaron focuses on helping organizations improve efficiency, strengthen operations, and make smarter technology decisions. Under his leadership, CTI Technology has continued to grow while maintaining a strong focus on service and long-term client relationships.

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