Key figures
Wisconsin receivables
2026, with sources
Nexus on sales alone
Wisconsin dropped the 200-transaction test in 2021. A remote seller has to collect only if its gross sales into Wisconsin exceed $100,000 in the previous or current calendar year. The state rate is 5%, with a 0.5% county tax in 70 counties, a 0.9% Milwaukee County tax, and a 2% City of Milwaukee tax, both since January 1, 2024.
SaaS, IaaS and downloads
Wisconsin DOR spells out cloud treatment. SaaS — access to prewritten software on the vendor’s server — is not taxable if the customer doesn’t operate or control the server or have physical access to it, provided nothing taxable is bundled in. Storage on infrastructure the customer doesn’t control is not taxable, but use of servers the customer controls and can physically access is. Prewritten software downloaded to the customer’s equipment in Wisconsin, or downloaded elsewhere and used in Wisconsin, is taxable.
A SaaS company selling into Wisconsin usually has no tax to collect on the subscription itself — but if it also sells downloadable software, digital goods or hardware, those lines are taxable once it crosses $100,000.
Receipts and the franchise tax
Wisconsin apportions franchise tax by sales, so revenue from Wisconsin customers also matters to the income side. A company with Wisconsin nexus files a franchise tax return and apportions its income by the share of its sales attributed to Wisconsin; DOR offers a nexus questionnaire for companies unsure whether their activity is enough.
The federal baseline
This page covers what Wisconsin adds. The federal rules underneath it apply here too.
Common questions
Is our SaaS taxable in Wisconsin?
Not usually. Wisconsin DOR says charges for accessing prewritten software on the vendor’s server are not taxable when the customer doesn’t operate or control that server and has no physical access to it — as long as nothing taxable, like a digital good, is in the transaction. Software downloaded to the customer’s equipment in Wisconsin is taxable.
Which rate applies to a Wisconsin sale?
It depends on the customer’s address. The state rate is 5%; 70 counties add 0.5%, Milwaukee County adds 0.9%, and the City of Milwaukee adds 2% — so a taxable sale delivered in Milwaukee carries 7.9%.
Receivables next door
- ILIllinois receivablesIllinois doesn’t tax remotely accessed SaaS, but Chicago charges 15% on it; state nexus is now $100,000 of Illinois sales with no transaction count.
- IAIowa receivablesIowa taxes SaaS but exempts it for commercial enterprises, so B2B sellers collect certificates rather than tax. Nexus is $100,000 of all Iowa revenue, exempt sales included.
- MIMichigan receivablesMichigan charges a flat 6% with no local rates, counts 200 transactions toward nexus, and generally doesn’t tax remotely accessed SaaS.
- MNMinnesota receivablesMinnesota charges 6.875% plus local taxes, still counts 200 sales toward nexus, and taxes prewritten software however it is delivered, which puts many SaaS products in scope.
Founder guides on this
- Sales taxSales tax nexus for startups: when you owe tax in a stateSince Wayfair, selling into a state can create a sales tax obligation. How economic nexus works, why SaaS is taxable in some states and when to register.
- RevenueDeferred revenue for SaaS startups, explainedAn annual prepayment is cash today and revenue over a year. How deferred revenue works under ASC 606, why it’s a liability, and the schedule behind it.
- StripeHow to reconcile Stripe payouts to your booksA Stripe payout is charges less fees, refunds and disputes, batched across days. How to book it gross, tie it to the bank, and keep revenue right.
More of the Wisconsin guide
- AccountingAccounting and state tax in WisconsinCorporate tax, conformity to federal rules, apportionment and what it does to your books
- PayablesPayables and contractors in WisconsinPaying vendors and contractors: 1099 filing, use tax, contractor tests and withholding
- PayrollPayroll taxes and employer rules in WisconsinWithholding, unemployment insurance, paid leave, minimum wage and the rules on paydays
- ComplianceCompliance and filings in WisconsinRegistering to do business, annual reports, franchise tax and the filing calendar
- AdvisoryAdvisory: credits and decisions in WisconsinCredits, incentives and the decisions that are cheaper to get right the first time
Sources
Checked against each agency’s own page on . Rates and thresholds change, usually on January 1.
General information for US companies, not tax, legal or accounting advice for yours. Rules and thresholds change; confirm the specifics with a CPA or the agency before you act on them.